RC India

Hi everyone,
Wonder if anyone would be interested in attempting a one minute flight with an unpowered, RC/non RC, Chuck glider/catapult glider/discus launch/ rubber powered model, if some prize was offered...

If at least 10 members are willing, I would consider putting up a prize of say Rs 5000!

Come on guys.

Edit:
Please see reply #12 for details
Please also see reply #84

I'm in!

I will try.

Great idea sir !!! I'm interested.

Here’s an example (that unfortunately I can’t match)

The Kremer prizes are a series of monetary awards, established in 1959 by the industrialist Henry Kremer, that are given to pioneers of human-powered flight. The competitions and prize awards are administered by the Royal Aeronautical Society's Human Powered Aircraft Group.[1]

The first Kremer prize of £50,000 was won on 23 August 1977 by Dr. Paul MacCready when his Gossamer Condor, piloted by Bryan Allen, was the first human-powered aircraft to fly a figure eight around two markers one half mile apart, starting and ending the course at least 10 feet (3.0 m) above the ground.[2]

The second Kremer prize of £100,000 was won on 12 June 1979, again by Paul MacCready, when Bryan Allen flew MacCready's Gossamer Albatross from England to France.

A Kremer prize of £20,000 for speed was won in 1984 by a design team of the Massachusetts Institute of Technology for flying their MIT Monarch B craft on a triangular 1.5 km (0.93 mi) course in under three minutes (for an average speed of 32 km/h (20 mph)). Further segments of a total prize pot of £100,000 were to be awarded for every improvement in speed of at least 5%; the next segment was won in the MacCready Bionic Bat with a flight of 163.28 seconds on 18 July 1984, piloted by Parker MacCready.[3] The third segment was won by Holger Rochelt flying Musculair 1 designed by Günther Rochelt. The fourth segment was won on 2 December 1984, with a flight of 143.08 seconds in the MacCready Bionic Bat piloted by Bryan Allen.[3] The fifth and final segment was won by Holger Rochelt flying Musculair 2, after which the prize competition was withdrawn by the Royal Aeronautical Society on grounds of safety.

There are currently three Kremer Prizes that have not yet been awarded, for a total of £150,000:

26 mile Marathon course in under an hour (£50,000),
Sporting aircraft challenge stressing maneuverability (£100,000),
Local challenge that is limited to youth groups (under 18 years) in the UK.

Perhaps a 1 minute flight with a hand or catapult launched glider is not even worth attempting...

I am in...challenging....

I am in too

Over 250 views, but only 5 willing to attempt a 1 minute hand/catapult launch flight so far...

I can wait..

https://youtu.be/XHqFDw_94W4

i am interested sir

Hi,
Only six interested so far.
I guess a one minute flight from a hand launch may be too ambitious.
Let me simplify.

Target: 30 seconds flight (with supporting video)
Model: Hand Launch Glider (no engine, no motor, no prop, no catapult, no histart, no towline)
Closing date: midnight Sunday 1st July 2018.

Prizes:
1. HK T4A V2 Tx/Rx (unused) or Rs 2000 for the first HLG flight of 30 seconds or more posted on this forum after midnight today
2. Rs 1000 each for next three ...

If there is enough interest, will try to sponsor more such contests within my limited means...

Edit
Hand launch includes javelin, side arm, discus and tip launch!

I am interested sir, and am a participent.

Good challenge. I would like to give it a try.

Prabal, Taksh, Kanav, Imperial Fire, Rooster, Gaurang, Kalyanda, Kiran
Welcome on board.
This weekend is a good time to build a new model or repair an old one.

Please post pictures of your build and videos of test flights as you go along.
May hopefully attract some more members...

Wonder if I should build a new fuselage and use this old wing  :headscratch:
http://www.rcindia.org/kites-trains-free-flight-and-all-others/sweepstakes-rctlg-k-k-iyer/?action=dlattach;attach=693637;image

The first and last attempt 4 years ago to discus launch it was not quite successful  :banghead:

www.youtube.com/watch?feature=youtube_gdata_player&v=0tI2lGnxYqQ

Sir, intially you did allow rubber power and catapult. I think 30 seconds with a hand launch is really tough. Even the world record is 29 seconds on a paper plane. I think catapult and rubber power should be allowed.
DLG may be a option.
some chuck gliders do achieve 30 seconds but what i mean to ask is cant catapault be included?

http://www.rcindia.org/kites-trains-free-flight-and-all-others/mini-hlg-9'-ws/msg288879/#msg288879

Glides well. (Could manage around 10-12sec before colliding against obstacles)

This challenge is not impossible. Make an attempt. Make several attempts.

I'm not turning down the challenge no way!
Attempt to pakka!

Excellent  {:)}
Exactly the kind of attempt intended.
With this model I could probably exceed 20 seconds!

Post 1 or 2 pics (and videos) in this thread for everyone to drool over.

Here are some snaps.
I'll try to take a video tomorrow.

@K K Iyer
I have problem that is area
Ram lela ground and other ground is small for flying.

I am building my HLG plane
I will definitely try to get 30 seconds.

Thanks

Will try to finish my chuck glider 17 inches span by next week.  Will use the wing in picture.

One chuck glider. 9 inches span.

I made DIY HLG plane with my own desgin but can't get more than 2-3 seconds from that plane as i made plane from theromocol (which is from theromocol plate).
Please suggest some other material which is easily available in market.
Thanks.

No build during this weekend?

30 sec may be harder than you think.
Pl see thread of kiran rc.

To cross 10 seconds, you’ll need to get some balsa...

What’s the flight time you’re getting?

Everyone’s waiting for the video...

@taksh
As suggested by K K Iyer sir, you need to get balsa for your build, it takes an edge over foam/depron/thermocol due to its stiffness. Foam can flex easily during flights which affects it's gliding ability.

Super-sweeped hlg 15"ws
http://www.rcindia.org/kites-trains-free-flight-and-all-others/mini-hlg-15'-ws/msg288952/#new

I am in too!

is there any restriction on material to be used?

Come on Swapnil.
Don’t raise doubts for doubts sake!
This is not a long thread. Is there any restriction mentioned so far?

But since you ask, lighter than air materials not allowed
 ;D

Polyfilm are allowed or not?

Please DO something.
Let us see some action.
Let us not be only full of doubts.

I don’t even know what polyfilm is.

Why are you guys asking “is this allowed, is that allowed?”
Has any material been prohibited in this thread so far?
The only materials NOT ALLOWED are those that are LIGHTER THAN AIR!

Start your attempt with whatever material you have. Only after you build a model and try to fly it will you realise if it is suitable or not.

One entrant is already test flying successfully, while others are still asking “allowed?”
BEST FLIGHT SO FAR IS 8 SECONDS...

Best wishes

@taksh
I guess you meant plastic sheet (polythene?).


P. S  The main motto of a challenge is to encourage new ideas
It is the final outcome that matters rather than the materials used! :)

I will abide by rules, will not use material "lighter than air"

Thank you.

@kiran rc @K K Iyer
I am talking about polythene.
I will try to make Hand launch glider.

Balsa is the easiest, lightest and most suitable material for this type of model, especially for small size, say less than 24” span.

If you are thinking of using other materials, please go ahead and experiment.

A few years ago I built a 12” span wing with a depron core and glass fibre skin. Fuselage of 3mm carbon fibre rod.
Weighs 17gms. Should have used a tube instead of rod.
With light balsa for wing/tail and hard balsa for fuselage, it would be about 10gms.

The whole fun is in trying out your own ideas...

By the way, this model is based on the ‘Vartanian’ with which one Mr Leo Vartanian set a US record of 55 seconds in 1941!

"By the way, this model is based on the ‘Vartanian’ with which one Mr Leo Vartanian set a US record of 55 seconds in 1941!"

Catapult throw or hand launch?

Hand launch. That too indoors (in a hangar)!

Everyone who responded is offline  :banghead:

Would it help if I provided one or two plans to start with?

Or if I provided small quantities of balsa?

I had searched in my old stuff and located an article with a plan for an HLG called ‘Bulbul’ by Father Carlson in the March-April 1967 issue of Indian Modeller.

I was planning to scan and post the plan and article
1. Here, as an inspiration to entrants
2. On outerzone.co.uk as my tribute to Fr Carlson (whose Tich was my first HLG in 1967)

Unfortunately Golu, my dog, got jealous and chewed those pages to shreds.

RC Aunt, my better half, is attempting recovery/salvage.
Wish us luck...

We wish you luck!

Many of us may be newcomers to hand launch gliders, and may not have balsa.

We have to start with the size of the wing, tail, fuselage, the glue, and how to balance to get it to fly.

If you don’t have balsa, can you get a disposable dinner plate? This is like 1mm depron.
You will also need (fuselage) a 9-10” stick like a Jhadoo ki teeli (wallaka marthu kutchi for Tamilians)
And some way of gluing. Like hot glue. Or Fevicol if you can wait for long for the glue to dry.

If you have these materials, would you like a simple plan? For a model that will at least fly indoors?

To exceed 10seconds, you’ll probably need balsa.

If desired, I’ll post a (balsa) plan that can achieve at least 10 seconds.
And then others with more potential...

Pl let me know your views...

No, please don't share the plans sir.  At least not publicly, only if someone asks you in PM, let me and some others like me try it out.  Let us draw the plans.

@K K Iyer
I made plane with dinner plate but i can't get more than 3-4 seconds.
If you know any method to increase rigidity or hardness of the depron of dinner plate then please tell me
I am waiting for your reply.

Thanks.

disposable dinner plate and balsa might  bet the best way to do it ..if not all balsa and cf...
will share my vid today evening.

Make spanwise groove in the bottom of each wing half.
Groove (khaancha) can be made using a dull pencil tip or a 2mm piece of wood.
Select a suitable stick from a paani waali jhaadu.
Cut to length and stick into the groove. Attach with Fevicol, hot glue (very little), or even cellotape.
This is OK for 9-10” span.
For larger size, use 2-3mm depron and bamboo skewer (it is 7”)

Remember that such materials/construction are enough to build a glider that flies, but probably cannot do over 10 seconds.
Longer flight needs a launch like throwing a cricket ball from the boundary to the wicket keeper.
2-3mm foam wings are simply not strong enough.
(Unless covered with glass cloth  ;D)

Best of luck with your experiments.

OK  ;D

Did anyone build one today to test fly tomorrow?

Sweet colours on that wing dude!!!

I'm really getting into gliders at the moment (so is the wife and kids)

Tell me....think it can be done with a foamie bought for £8???

Not many Sundays left before it starts raining...
Hoping for at least a few attempts at a 30 sec hand launch flight...

I am in for the contest will start building soon. :thumbsup:

Most welcome.
No response this weekend from other entrants.
So your chances are better  ;D
Regards

No one except kiran seems to have even built a model to attempt the 30sec challenge so far.

I wonder if a 30 sec hand launch flight is:
1. Too easy to interest anyone, or
2. Too hard to interest anyone

Most probably too irrelevant to interest anyone...

But I suspect that some may have tried and discovered that it’s not so easy

That’s why it’s called a Challenge...

Hi KK

Have been off this forum for quite some time.

Have been busy mentoring some modellers of our AMAI who are getting into Indoor FF rubber after a lot of my goading.
Hoping to have atl east 5 serious participants for the next AMAI Indoor Nationals which is being planned for the coming winter.

Just saw your post on the HLG/CLG rubber FF challenge

Yes I would be happy to participate in the challenge for indoor rubber FF but in the event my flight is the longest I would like the prize to be awarded to the second best.
I would like to do it so it goads me to do some flying which I have been unable to do for quite some time due to other pre occupations.

Yes 30 sec in chuck glider is a tough job. Indoor HLG record is around 45 secs.
Rubber power over one minute is within anyone's grasp if they go through the learning curve and get the hang of it. Ofcourse you have to have the TAN rubber to get any meaningful duration.

Can provide plans for rubber that even a novice can build with minimal construction skills.
Anant

@glidiator
Hi Anant,
This time I thought a Rs5000 prize may elicit a 1 minute HLG attempt. It didn’t.
So I changed it to 2000 for the first 30 sec HLG flight, and 1000 each to the next three.
And simplified it. No motor, no engine, no rubber power, no histart, no towline, no catapult.
Only Hand Launch. Javelin, side arm, tip, or discus.

BTW, 55 sec indoor hand launch was achieved in 1941! See reply #40

Surprised that no one has even considered copying that model.
Mine has a glass skinned depron core wing.  That’s another story.
But even that could have inspired someone to experiment...

Re rubber powered model plans, pl see this
http://www.rcindia.org/kites-trains-free-flight-and-all-others/a-small-pilatus-porter/msg257138/#msg257138

May be too much.
Perhaps a link to an AMA DART is reqd!

Edit
Sorry
Read ‘can YOU provide plans for novice rubber?’
When what you said was
‘(I) Can provide plans for novice rubber...’

@saikat sir,
Request input on this thread, or by PM
Regards

will make a 20+ second model tomorrow....if the gods fulfil a little wish of mine...i swear i wont be lazy anymore...xd

My chuck glider is almost ready.  Thinking whether I should paint the vertical stabilizer and fuselage.  Need nose weight for balance.

Suggest avoid paint on tail. Every gm at the tail will need 3gms on the nose to balance.
Good to see you salvaged your 3 (5?) year old wing  ;D
Regards

This HLG challenge is indoor or outdoor or anything

Anant

Either!

Some suggestions:

To achieve 10-15 sec, you’ll need a 9-10” span model of 6-10gms weight.
This is a good starting point for training your launching style.

Heavier models launch higher, but lighter models glide better. A balance has to be found.

Those who have crossed this stage can look at two pioneering high performance models of differing design:

1. Vartanian (55 secs in 1941)
2. Yellow Bird (1961). In the 70s, nearly every aeromodeller in India had one. Including at least 5-6 current members of this forum!

Look them up. The articles that accompany the plans are interesting to read...

My first balsa chuck glider.  ;D
Under construction.
Making 60cm wing span.

Have a few kits of Yellow Bird from Aurora models. Think I bought it almost 10 years ago. Still in Original packing.

Some other Aurora HLGs also.

Heavy rains past few days here.

Will have to wait for a clear dry day to try some flying.

@Glidiator
Sir please share some photos.

Will post pics asap

Glidiator, if ever you could be persuaded to part with a Yellow Bird kit, I'm always ready to buy! Made one about 50 years ago, launched from a tree I climbed up  ;)  Got about 8-10 seconds flight and was over the Moon! Second flight a stray dog got afyer it, and broke the stick fuselage in the middle  :-[

Check this video.
http://www.youtube.com/watch?v=GvvEjwPg2mY&feature=channel&list=UL
Observe the wing.
This is called a flapper wing with the trailing section being a very thin foam section attached to the balsa leading edge section.
This foam flap can be bent to give more lift.
But since it is very thin during launch the initial force / speed makes the flap bend upward so you get less resistance and more height.
At the peak height when the glider transitions to level flight the flap bends down to give more lift at slower sleep and therefore the sink rate is reduced.
There is a lot of Aerodynamics and techniques involved in what are simple HLGs

PM your address.
Will see how many I have left and will surely spare one.

@glidiator,
Sir,
Can you please tell us the total weight of all the raw parts in the YB kit? Excl nose weight.
Ready to fly weight as per original Alan Webber Aeromodeller plan is 1.55oz, or say 45gms, after tissue covering and many coats of finish...
Thanks

Will give pics of parts in the kit and weight.
You said tissue covering. You mean tissue is put over solid wing and then doped/ finished to very smooth coat to give least drag.
Also got a Sailaway from Aurora but never really trimmed it for good flight. Must do all that now.
Some other HLGs I got from Aurora are Tiny Tot, Tail wind, and some others. Ordered a whole lot quite some years ago for work shops. Some leftover in the carton. Now use them as demo pieces when doing Aerodynamics workshops that give an overview of various types of Aeromodelling stuff that can be indulged in

Will give pics of parts in the kit and weight.
You said tissue covering. You mean tissue is put over solid wing and then doped/ finished to very smooth coat to give least drag.
Also got a Sailaway from Aurora but never really trimmed it for good flight. Must do all that now.
Some other HLGs I got from Aurora are Tiny Tot, Tail wind, and some others. Ordered a whole lot quite some years ago for work shops. Some leftover in the carton. Now use them as demo pieces when doing Aerodynamics workshops that give an overview of various types of Aeromodelling stuff that can be indulged in

Something for inspiration
Stan Buddenbohm's world record F1N flight

https://youtu.be/DWpwLfVqBso

See the really low sink rate.

Also go through this site

amaglider.cim

Lots of useful info on construction trimming etc and plans etc for HLG, CLG, TOWLINE, etc Indoor and Outdoor.

amaglider.com

@Glidiator
sir what is the effect of Y tail?

Sorry Pranav have not made a detailed study of effect of various tail configurations.
Guess it is a matter of design based on what performance the aircraft is being designed for.

Different types of tails

A bit too early to discuss flapped wings, Y tails etc.
I can assure you that neither is required to achieve 30 seconds.
Better to simplify and add lightness

The intention behind this thread is to encourage entry level efforts, not high tech

Waiting for someone to post:
1. 10 sec test glides
2. 20 sec test launches
3. Full launches approaching 30 seconds

Once we cross that stage,
We can discuss Y tails, of which I have a little experience (see my earlier builds / videos)
And Glidiator can discuss flapped wings, of which I have no experience
And someone on this forum (I forget who), who built carbon fibre composite wings 2-3 years ago, may share his knowledge/ experience...

Forgot to mention that the Yellow Bird was doing over 60 seconds back in 1961

So come on guys, show us that 30 seconds can be done by ‘Made in India’
Theories and high tech can wait till that basic level is crossed.

Anyone achieving 1min before the closing date can claim the entire Rs5000 prize, leaving nothing for those attempting 30 seconds  ;D

Agree KK.
Basic proper camber sanding and weight reduction will improve performance significantly.

@KKIyer sir@Glidiator sir
The question regarding Y tail was just curiosity after watching video in post #77.

Currently i am searching for ballast materials any suggestions?

@pranav09
Ballast is used in gliders to increase the weight and hence wing loading.
Usually in hollow wing spar tubes. Often water in full size sailplanes, steel rods in RC.
You probably don’t need ballast.

Perhaps you meant nose weight.
Try plasticine, solder wire, lead shots, wheel balancing lead weights etc...
Even blobs of hot glue  ;D

@KKIyer sir
Yes nose weight.
Will try hot glue or solder wire
Thanks :hatsoff:

@PranavK09.

Effect of Y-Tail.  Less drag due to no vertical fin.  Less AuW.  You may loose directional path s in case model has undesired turning tendency as in most cases free flight models do not carry moveable surfaces. Vertical fin provides directional stability.

@dreamliner
Perhaps you meant V tail?

 :headscratch: :banghead:
Sorry for the channel mixing between V & Y ;D.

Yes, the above case is for V tail.

I think there should be a new thread for empennage designs.

Sure. Someone can start one. Or I will. But not just yet.

This is essentially a ‘flying challenge’ thread, to encourage attempts to achieve in India, duration goals achieved abroad over 50 years ago.

Theoretical knowledge is no use if it doesn’t produce practical results.

I’m not against theory. After all I’m the one who started posting tech talks.
But can we see some practical results based on what we already know?
C’mon guys. Show us some action...

glider update:

@pranavk09
Nice, neat build.

Suggestions:
Grain of wing tips needs to be spanwise, else will break if tip touches ground
More dihedral

@KKIyer sir
After i glued the tips then i realised that the change in grain.and yes more dihedral is required.
I am going to make another again.

@pranavk09
You can save this wing by cutting off the tips, making a cut about 3” in from the new edge, and raising the outer part about 20 degrees or so.
Good luck with your experiments...

Yes sir will try that.
This one goes straight to some distance and then increases AOA and lose height and again goes straight.(stalls)
Like ballooning in flat bed planes.

Huh? Didn’t understand that.

A nice floating glide depends on a combination of the tail size/distance from wing, decalage or difference in angle of incidence of wing and tail, and CG position to suit a speed just above stalling speed.

The first remedy for stall and dive is to add a bit of nose weight...

Later there will be other complications needing other remedies.
But we can tackle them one by one...

Pranav increase a little nose weight, it will improve.

While waiting for updates/ progress reports on this thread,
I’ve been working on this 15” rubber powered Druine Turbulent.
Put in about 25 hours so far...

Outdoor and scale rubber Power is a very satisfying pursuit too.
I am putting together a cute little rubber Power helo - "Ascenda" -. Am now making a collection of various types of indoor flyers that will add to the duration stuff.
Pics being reduced in file size to attach.

Another weekend is here.
A chance to attempt a 30 sec flight perhaps...

I was wondering will it be cheating if I use this method to get max unpowered flight time.
A lightweight airplane attached to a heavier airplane.
The job of the heavy airplane is to give momentum when thrown up. Thus max height.
The lighter one will come gliding down for max time??!!

It will be fair if only muscle power is used.:D

EDIT
Deleted. Wrong thread. Duplicate.
Original post is there on another board/thread.

I wonder if the truth is that a 30 second hand launch flight cannot be achieved in India?

Forget about this challenge.

Is there anyone out there who has achieved or is capable of achieving a 30 sec HLG flight?

Or is this ‘Make in India’ just a hot air balloon?

Hello Sir,

Your consistent push made me make a free flight plane....
Sorry to see not much enthu but I took out some time on sunday, not sure when i would be able to try & tune it to fly.
Not sure of results either. Usually Balsa is used for this purpose & i have used some HD foam sheets lying with me.

Lets see how it works out. I would do it out of curiosity rather than challenge.
Whats your comment on 12Gram weight ? ( this is my first chuck glider)


Pics below...

WS --> 16 Inch
Material --> HD thermacol Sheet
Aerofoil --> Clark Y ( by hand sanding)
Fuse --> Bamboo Stick
Glue --> 5 Min Epoxy ( yes weight issue but had no other choice as nothing to hold pieces in place)

In comparison to 20 Inch Stick ( powered).

Should fly well I think. As long as the wings don't fold ;)

Hello Sir,
 
I am very much aware of "In air Namestay" by foam wings....

Notice I have put fibre spar in this chuck glider ... so it can flex but not fold.

@rastsaurabh,
Nice one!
It will fly, and quite well too, as test glides from shoulder height will doubtless show.
Then you’ll have to see if it is strong enough to take full power launches...

12gms is lighter than possible with balsa (unless you had contest grade, ie, <=6 lbs/cft)

My 12” span model with fibreglass skinned depron wing and CF boom weighs 17 gms.

Eagerly await test glide video.
Regards

My glider was fighting with winds in loops :giggle:
Got the nose broken in hard landing.
Sorry no videos.

@pranavk09,
Doesn’t matter if no videos.
But you can post pics of mods to wingtips, if any...

Completed my RCGroups Build Off entry within tonight’s deadline.

Entries to our own 1min/30sec have an extra day, tomorrow being a Sunday...

please refer post #47

I had said that " I am in too"

Due to some unavoidable reasons I could not make HLG.

I know today was the last day.

Sorry for that.

Swapnil

@swapnilnimbalkar,
Thanks for replying.
Didn’t actually expect a reply in the closing hours...

AARGH, I FAILED.

But I learned two things:
1. A cash prize of 5000/2000/1000 is worthless
2. No Indian is even willing or capable of trying to achieve performance achieved abroad 50 years ago

Wonder if it is the lack of capability or inadequate incentive?
Maybe just lack of access to balsa

Maybe someone will sponsor Rs 1 lac for the first 1 min HLG flight...

Challenge over!

In!!!

@mehul anand,
Perhaps you didn’t notice that the last date is over.
BUT
Since no one succeeded, you can still gain the honour of being the first...

Read late sorry

Oh

@mehul anand,
Doesn’t matter if late.
If you can do a 30 sec hand launch unpowered flight (pl read this thread for details),
BY MIDNIGHT of 15th July,
I’ll give you a Rs 1000 gift!

Best of luck.

@mehul anand,
In reply #120 you said you’re IN.

Still in?
In theory, we can fly to Mars.
In practice, can we do a 30 sec hand launch flight?

If you do, I’ll provide proof to MIT that you were the first to do so on this forum.
Talk to your parents. Going to require a lot of determination.
To achieve in India a target achieved abroad over 50 years ago.

For inspiration, pl see posts of ‘kiran rc’.
His work so far is far far ahead of youngsters who just talk...

Best wishes

Hmm...

Gonna research...

Aah, a few like rastsaurabh and glidiator still track this thread...

Yes KK. Am travelling last 10 days but keeping track to see anyone especially the gen next is enthused by the idea of achieving a 1 min glider flight.
It's not a trifling challenge.
Plan to make a seriously good indoor HLG and CLG with flapper wings and see how well I can trim it for a good flight.

Yes KK. Am travelling last 10 days but keeping track to see anyone especially the gen next is enthused by the idea of achieving a 1 min glider flight.
It's not a trifling challenge.
Plan to make a seriously good indoor HLG and CLG with flapper wings and see how well I can trim it for a good flight.

@mehul anand
If you can do it (30 sec), I’m sure Glidiator will give you a similar gift.

Let me raise the stakes.
I’ll gift you 5000 if you can do a 1 minute hand launch unpowered flight by midnight 15th July

Show me that ‘Make in India’ is not just a dream.

Yes KK. Will add to the prize money.
Anyone willing to rise to the challenge??

K didn't knew how to delete

@Mehul Anand
Also learn 3D. 3D will help you to understand pitch yaw roll.

This challenge closed at midnight on 1st July.
However, extended to 15th July.
Due to support from glidiator, prize money DOUBLED to Rs 2000 for a 30 sec flight.
For a 1 min flight, my offer of 5000 valid till 15th July.

Taksh,
As is your habit, you have posted a COMPLETELY IRRELEVANT MESSAGE.

Maybe you could talk less and show your ability instead.

I think you are NOT capable of demonstrating a 1 minute hand launch flight, by 15 th July, despite your big talk.
If you can, I will pay you Rs 5000.
If you fail, you can pay me Re 1.
Do you accept this challenge?

Contestants can see if they can find a lucky updraft that can extend the flight  considerably if flying outdoors. Find a rocky patch on a hot afternoon. You may get lucky even if the glider is not too well trimmed.

Badi badi baaten.
Do you see your words are meaningless?
That you’re talking nonsense?
Just like Taksh?

Kar ke dikhao na.
Same offer as I made to Taksh the great.

K didn't knew how to delete

Well sorry KK sir :banghead:   :bow:  :hatsoff:

As I said.
Show me. I’ll pay 5000.
Else you pay me Re 1.
Fair enough?

Would you consider editing/deleting this post?

@taksh,
Did you try this challenge yourself?
Or just gave gyan to others?

Though the last date is over, I’m extending it to 15th July midnight specially for Mehul Anand and Taksh.
If you succeed, 5000 for a 1 min flight, 1000 for a 30 second flight. Glidiator may add a gift.
If you fail, you have to admit it.

.

Challenge Accepted.
1 minute tho nahi but try karunga ki 15 second hee aa jayee...

.

@taksh,
Stop phaltu posts please.
30 sec ya 1 min kiya toh video bhejo.
Khaas aap do logon ke liye tarikh badhai hai
Saboot do, ya hum pe reham karo...

@taksh
@herojit

Any posts showing your attempts at 30 sec or 1 min flight are welcome.

Please voluntarily delete your posts which are not related to your own attempts at these targets.

I can see this thread heating up again. And who else can be behind it except our beloved taksh?
I gave this a try with a special paper glider. Got to 12 seconds. Nothing more.
I just got done with my exams and I'm out of balsa wood so can't do the challenge yet.
I have a few planes in mind from the old times. I'll make those planes after I get some good balsa.
Not for the competition or the cash prize but just to see how long it can fly.
Regards

@prabal276,
The challenge CLOSED AT MIDNIGHT ON SUNDAY, 1st July with NO SUCCESS.
Extended to midnight 15th July only for
1. Mehul Anand, in case winning it will help him in his MIT entrance bid, as per his dreams...
2. Taksh, so that he can show that he has the necessary DUM to support his Badi Badi Baatein...

In your case, expect a present from me, and maybe from Glidiator too...

The fact remains that so far,
NO MEMBER HAS DEMONSTRATED THE ABILITY TO ACHIEVE A 30 SEC HAND LAUNCH FLIGHT!

I guess the 1 minute challenge was a mistake on my part.

I think that some of the responders on this thread, who clearly have the skill, may have backed off due to the word ‘Challenge ‘

Perhaps a ‘One minute fly off’ would have been a better topic.

@KKIYER sir
I made the model but i was not able to do gliding test of that due to bad weather here.
Removed wing tips as suggested.
but still its sinking fast.

@pranavk09,
Break the centre joint and increase dihedral. (Say 15degrees each side)
I’m including you in the deadline extention to 15th July midnight

So participants for 15 July extension are
Mehul anand
Taksh
Prabal
Pranav

Come on guys.
Show us a 30 sec flight
Remember that 1 min achieved in UK/ US 50 years ago!

I’d be glad to include any other late comers.

I will participate for this.

All those motivated (provoked?) by my posts, your builds/flights eagerly awaited...

Since only 3 days left (finally closes midnight Sunday 15th), let me offer a few small last minute incentives for the first to achieve these HLG goals:
1. One minute Rs 5000
2. 30 seconds Rs 2000
3. 20 seconds Rs 1000
4. 10 seconds Rs 500

Glidiator may possibly add a gift...

Please do not misunderstand me.
I’m a pensioner. Just doing what I can afford to encourage entry level aeromodelling.
(I suspect my efforts may be totally irrelevant)

Do try, irrespective of what youthink of my efforts...
Regards

Edit:
As an afterthought, I will accept a ‘Double or Quit’ from any of the winners...

Sunday 23:59 or Saturday 23:59
Confusing...

i am interested to participate.
actually i saw this challenge today. can i participate?
i think i have 2 days to build and fly. if you permit me i accept your challenge and try to make flight as long as possible

Yes KK. I Will match your prize offer so the kitty doubles.
Hopefully incentive enough to motivate participants.

Sir's My plane is ready ..... not finding time to test & tune.

My entry is not for contest.

Wow!
That’s real sportsmanship!
Thanks Boss.

You know that you are always welcome. Hope you get the time over the weekend.
Prize can be passed on to deserving youngster, as Glidiator did last year...

In a few minutes, I’ll be starting a new thread ‘My 1st Chuck Glider’
Hope you guys like it and that newcomers find it useful as a starting point...

Did anything?
Or just finding faults in others?

Glidiator has offered to match my prize money offer.
So a 1 minute HLG flight can win you 10,000!

You have 50 hours left to become famous!
You can see my new thread ‘1st Chuck’ for inspiration...

Tried four designs of Coro flew maximum for 8 sec...
Coro won't do.....
Still would try to complete the challenge...

Just under 2 hours left. Best wishes

tested today:
 https://youtu.be/jW3FKv8edFE
 https://youtu.be/2gLpe6hKbAE

@PRANAVK09  much better than mine...
balsa gliders glide better...
will order balsa  to complete the challenge...

Hi all,

Iyer Sir,

Your 1 minute challenge is quite interesting and i too would have taken part but due to work relocation could not.

I have built quite a no of chuck gliders and from experience can say that a white wing paper plane or a Zing wing folding glider can be best option. Although balsa can also do but will need lot of experience with sanding the wings to perfect aerofoil for shape for max glide.

I have seen white wings paper plane and the Zing wing do maximum glide with catapult ofcourse.

regds

Hi everyone,

CONTEST CLOSED.

Many thanks to Prabal, Taksh, Imperial Fire, Rooster, Gaurang, Kanav, Kalyan da, Kiran, Dreamliner, Swapnil Nimbalkar, Saurabh Rastogi, Mehul, Himanshu and Sandeep Bajare for taking interest.
And to Glidiator for his generous offer of support.

As and when you complete your models, remember to post a picture on this thread.

Regards

Good challenge here (https://footballbettingguide.net/)
. I would like to give it a try.

@lizette,
Welcome to the forum.
Show us your stuff, even though this contest is closed!
Regards