RC India

33 inch blu baby build
Now control rods (or push rods) & V-stab rudder and landing gear are in progress.
Fuselage is made of 25 inch thermocol & v - stab and  h-stab are made of 5 mm thermocol.
Electronics :
A2212 1000kv with 1045 propeller
30a simon k esc(from quadcopter)  :'(
2200mah 3s 30c lipo ( i think plane will be heavy).
Turnigy 9x transmitter & Turingy 8ch receiver

Other things Required:
need to make control rods(or push rods) but steel rods from cycle tire.
I am going to make control rods from bamboo and wire which used for Saria(TMT)
If you can tell any diy control rods build then tell me.
Wings needs to be joined together with dihedral.
I need to wait for more than 3-4 days for dry ground because of rainy season in my area.

Thanks to all people for talking with me on call & suggesting me on forum.
Special thanks to Girish Sarwal Sir.

Images here:
(https://preview.ibb.co/e5SSg8/IMG_20180728_153838.jpg)
(https://preview.ibb.co/iWtNET/IMG_20180728_153843.jpg)
(https://preview.ibb.co/jmTYM8/IMG_20180728_153854.jpg)
(https://preview.ibb.co/nhhSg8/IMG_20180728_153916.jpg)
(https://preview.ibb.co/coVr8o/IMG_20180728_153934.jpg)
(https://preview.ibb.co/nQ4Joo/IMG_20180728_153955.jpg)

Looks good taksh, let's see this up in air soon

Well done.
What did you use for covering?
Try 2” wide coloured tape

For desi pushrod, see this:
http://www.rcindia.org/tools-materials-and-building-techniques/push-rods-alternative/msg179687/#msg179687
Regards

@K K Iyer sir
I have used butter paper for wings and tape (as shown in image) for covering v stab, h stab, and fuselage.
Now i am worried about maximum throw of rudder and elevator because blu baby is slower.

 your build is awesome and for your query you can use umbrella rods or whatever it is called
Its a little wife than the holes so heat it push it in and give it a slight wiggle...
It's hard to cut them though but they act just like used by flite test ...

Hope I helped...

My parents will not allow me to destroy umbrella because of rainy season.
I have 3  rods 3~5mm steel rods. I got 2 rods(very hard)  from nearest engineering works shop & 1 is from bicycle repairing shop.
Now i am thinking which is best.

Well if there are street markets, chor bazar or Hatia types market during this season there are umbrella fixers ask them they will only give if you tell it's school or college project...

Tomorrow, i will try to find umbrella fixer but if i said "i need for college or school project" then all will try to sell at high rate.
I know nearest kabadi wala. Kabadi wala selling his not working 2 x cd dvd rom driver (from computer) at 250+.
kabadi wala in poor area can sell at 30rs+ each.

My new idea is.
I will cut stick of lollipop into a size then i will insert servo control horn in lollipop stick after making big hole in lollipop stick.

Cycle rickshaw spokes are a good alternative for push rods. One side is threaded and one can easily screw in a clevis

@ taksh
Some stationery shops have a wire for bouquet making. It comes in two varieties, a thinner flexy- bendy one and a stiff one.
If you can find the stiff one, it will be excellent for the job!

@taksh
Prabal is right, the stiff one is made up of still, which does not bent easily, but you have to make it straight using flat headed hammer, it is lightest and strongest one

@prabal @tictoc21
Share images of wire with me.
I can understand things better with images.

@ taksh
My stationery has stopped stocking those wires. So cant share any photos.
They are a little thinner than cycle spokes but of the same level of rigidity.......
Just inquire once. I am sure you will find them.

I usually get the Umbrella wire from local junk yards. The actually give it for free. You can try there.

@prabal
I asked for bouquet making material and wire at 3 shops and all said "hamera pass nhi hai" or "hmm nhi rakhte".

This is the required wire

Using it on my craft right now, and it's very cheap and stiff and lightweight at the same time

Hope you can understand from pics

Ask for steal metal wire

In hardware store

@tictoc21
this wire is for TMT ( saria ). I have this wire but this wire is very flexible.
I heated up this wire with spring so wire can get hardness but nothing happened.

If you want a really great wire for the job, go to a electrical store and ask for the wire that electricians use to pull wiring through conduits. It is a hardened alloy with perfect thickness for the job and will not bulge or break or twist

You did not quench it I suppose you only heated it...

Yes it's flexible in ring format, but when you make it straight by hammering its gets hardened.

I have umbrella rods as well as thread manjha.
which end of umbrella is  for servo control horn.

elevator & rudder

@taksh
For pushrods for foamies, phool jhaadu ki teeli is the lightest option.
See my earlier post.
I never needed cycle spokes or umbrella wires for push rods.

For connecting to horns, use wire from paper clips. Tied on with dhaaga, sealed with a drop of CA

@K K Iyer Sir
Today i tried umbrella rods but later used a few drops of CA and then it stuck. Now i am going to try bamboo and wire from paper clips.
 

Rudder & elevator Done.
@K K Iyer sir Thanks. Your method works. I used bamboo and paper clips but wire(from paperclip) gets bend at maximum throw and again come back in its position but this happen only at rudder side.

Now my question is maximum throw of both rudder and elevator and how to measure maximum throw as angle. i mean right method to measure.

1. It means that the servo is pulling/pushing the rudder more than it can move.
a. If your tx has TVA, reduce it to about 80% on rudder channel
b. If your tx has EPA (end point adjustment), reduce it to about 80% on both sides of rudder channel
c. If your tx has dual rates, select about 80% on high rate
c. If you have none, move the pushrod one hole closer to center on the servo arm, or one hole farther from the base on the rudder control horn

2. Use a protractor (also known as a D) from a geometry box!

 :headscratch:
I think video is better.
I will upload video.

I have 9x. I don't know tva,epa  dual rates. I will search on google.

TAKSH,

Your TX has end point settings. I would suggest you download the TX manual and read about it.

In your first model you dont need to put Expo , dual rates etc. just adjust the end points so that overthrows are not there.

Keep reading of all those stuff and do trial on non flying model.... and implement it on flying model as you become expert in flying.

Frankly while first time flying you would struggle to change the switch for dual rates.

barbecue skewers kaha milenge? wings ka fitting ka liya chahiye.

How to balance cg? there is two marking 2.6 inch and 2.3 inch.
So, plane cg should have to be balanced between 2.6 and 2.3 inch?
i mean cg 2.6 or 2.3 inch ka bich honi chahiye ?

Confusion hai baas thodi si.

Confusion hai baas thodi si.

To find cg
Remove all electronics, motor battery ecs Rx servo
Just have model
Of course at this stage model is surely tail heavy now add some coins by taping it with transparent plastic tape.
Then throw your craft at ground level about from 1m from ground
If it is again tail heavy add some coins again, do this several time till the aircraft become level when you throw in air 1m from ground surface.
When you see if it is flying level then stop adding coins.
When craft lands on surface lift it at such point such that it becomes level.
Move 1 inch forward from that point and mark this point as cg.
Now add your electronics, and balance a very little nose heavy by battery adjustment.
And take out for flying.
This is what I'm doing from several years, and all models are flying great, no craches till now due cg point.
Hope you understand.
Have a nice flight.

Sir,
Why 1 inch ahead  the CG should be??
And towards the nose or tail??

Remember nose heavy plane are not good to fly and tail heavy are unable to fly...

@taksh,
It will be ok if it balances about 2.5” behind the leading edge.
This is within the range mentioned on the plan (2.3-2.6”)

The 1 inch is to balance any wrong measurement in cg.
And it should be towards nose.
Bcoz if you make if toward tail the plane may be nose heavy and when you add battery to balance it, you will have move battery back and the aircraft may get tail heavy.
So counteract this the cg point is taken 1 inch toward nose so that when you balance it by battery the will have to move forward which will make plane nose heavy.
Nose heavy are better than tail heavy to avoid crash.
Hence when you move it forward 1 inch then for next flight the plane will be available to move battery to back.
If 1 inch is taken toward the plane may get crash and ofcource it will be not available to adjust the battery.

There are two simple methods in use for the last 100 years or so.
1. Balance the model within the range shown on the plans (available in this case)
2. If the plan does not indicate, balance between 25-33% of the chord from the leading edge.

Hope this helps. And does not confuse.

@tictoc21 @K K Iyer
Thanks

I have used A2212 1000kv motor and 1045 propeller and I tested plane in my home.
Rudder is not at center So, i used subtrim functions of tx so rudder can be in center.
I just increased throttle slowy and many times i increased throttle to 50% fastly then i decreased throttle to 0%.
but problem is coming. Plane is automatically turned to left side.
Rudder problem? or troque roll problem i mean i need to set thrust angle?
what's problem with my plane?
Note: I have installed landing gear to my rc plane then i tested. Landing gear is fixed with zipties and glue gun and CA.
Plane's cg is not balanced. Tail is heavy. I just tested plane. I just  want plane to move forward but plane moved but plane also moved left side.
Motor rotation & propeller : Counter clock wise.

the landing gear may not be straight.
In my Old Fogey , the landing gear caused the same problem......

Push the model by hand, without running motor.
See if it rolls straight.
If not, wheels are not aligned, or more friction in one wheel.

Taksh ......

Paste the pic of the model........

In order you might want to
- affix the LG property with screws or glue or insert in slot, not with zip ties.
- the LG is not properly perpendicular to fuse
- the left wheel is stuck, while the right is moving, both of them are not moving at the same speed
- if it's going a little to the left and can be steered using the rudder, use rudder on takeoff

Also, have you given excessive left angle to the motor?
Check for that as well.

(https://i.imgur.com/r8zNk3e.jpg)
(https://i.imgur.com/9SJXV43.jpg)
(https://i.imgur.com/gcsRjRf.jpg)
(https://i.imgur.com/0uyPSK6.jpg[/img[img]https://i.imgur.com/cvicO9u.jpg)
(https://i.imgur.com/YacjXeC.jpg)
(https://i.imgur.com/o1Dmvze.jpg)
(https://i.imgur.com/dktfcSh.jpg)

(https://i.imgur.com/1Q6Pm2a.jpg)
(https://i.imgur.com/zeTQlZc.jpg)

Now,
Please tell me what is wrong with my plane. kiya sahi hone baaki hai?
I think
elevator ki end side ki thermocol baith rahi hai.
landing gear is not okay.

Your Landing gear isnt straight!
Using coins to balance! Nice! I like it!

Hello Taksh

1. Move ESC back ... you have wire length..... do it.
2. Place battery in place of esc. it will balance the CG as well. What is the battery you are using ... 2200 will not go on this size plane. use 500 or max 1000mah.
2. Make wheels more vishram ..... Spread a bit and make them straight. Hope you have put refil in center of wheel with hot glue.

@rastsaurabh
Plane is heavy. I think i can't get enough flight time with 500~1000mah lipo.

Yes very true....You will not get good flight time with 500 or 1000mah battery.


BTW what flight time you are expecting on this plane?

@rastsaurabh sir
4 ~ 5 minute

Tips to remember before flying:
1. CG BALANCE
2. Range Check.
3. Rudder/Elevator

any more than these?

Control your heart.

Check your battery mounting,
Check that receiver antenna is hanging out,
Check that all linkages and control horns are fixed and locked.
Check that there are no people, Telephone poles, Electric wires and anything that can harm your plane or be harmed by it.
And be confident. Crashes are a part of this hobby.
I crashed my FT Flyer on its maiden flight.
ALL THE BEST!  {:)}
Do take a video, I so much want to see Taksh finally flying  :)
Regards

Don’t go flying alone.
Take a friend along.
Important: WAIT TILL 16th. See Police notification in the newspapers.

@K K Iyer Sir
I will go for flying at 18th day.
No police can't take actions.
Police can't stop people and kids for using government place. cricket khelna wala deewar lang kr khelna jata hai govt ground me
ground ka ass pass khaith hee khait hai.

All thing is okay? Shab theek hai kya?
https://www.youtube.com/watch?v=rKSwDqru1Vw
Also tell me about insulation foam which i showed in end of video.
I have insulation foam of refrigerator.
Can i use this insulation foam for making my upcoming planes

@taksh,
Looks ok so far.
Suggestions:
1. Use more rubber bands for the wing. At least six
2. Reduce elevator throw by 50%
3. Widen the legs as suggested earlier by rastsaurabh.

Does it roll straight now?

Please take the Police notice seriously. It’s not a joke.
If you try to fly in Delhi tomorrow, expect to be arrested.
After tomorrow may be no problem.

@K K Iyer
Already one Elevator end point is 80% & second end point is 100%.


I will do hand launching and i will post video.

Reduce elevator to 50% up and 30% down.
To prevent severe up and down movements of the plane, as a new pilot uses a lot of stick movement.
Later you’ll find that very little elevator throw is needed (till you reach 3d)

Elevator E.POINTS : 50% 50%
THROTTLE E.POINTS : 100% 100%
BUT I forget to tell you about rudder E.POINTS
RUDDER E.POINTS : 80% 120%
Please check video and tell me mistakes or wrong things.

Video:
https://www.youtube.com/watch?v=WK_aIXS1h3o

Edit:
Sorry i forget to click on "Publish" button on youtube. Now you can watch video.

@K K Iyer sir
@Saikat sir
@And others
All things is okay? I will go for flying in maiden within 1-2 days I got simulator & I am installing sim.
flying ke liya kaal yeh paarso jayunga.

Transmitter is on Acro mode.
it is okay?

Everything looks fine!
Can you increase the up deflection of the elevator? Seems a little low.
Good luck 👍

@K K Iyer sir
there is a need to increase end points?

Attached pics of full up and full down elevator on my Sunbird.
If the CG is correct, very little elevator throw is required for trainers.

@Taksh , do check the location of the CG with respect to the Wing leading edge.

Rain! Rain! Rain!  >:(

After updating firmware, to er9x.
MODE : RETA(RUDDER,EVELATOR,THROTTLE,AILERON)
CH1 RUDDER, CH2 ELEVATOR
Setting in limits,
CH1   7.0    -100 -   80
CH2  -28.9   -80 -   50

I set -28.9 or 7.0 to get elevator and rudder at center.

Now please tell me which thing is not okay.



https://youtu.be/b3ca0s3zEoU

https://youtu.be/0KvP606TxYI

I am going to fly rc plane without any aeromodeller.
Please tell me how to perfect rc plane.
I set expo 35 35 for rudder
I set expo 25 25 for elevator.
Tell me all thing is okay.
If you want to see video then i can post video also.
Thanks to all who helped me.
Now, something is complete. I mean 90% is incomplete without 10%.
@K K Iyer sir & others. Reply on this post.
I don't know what will happened with rc plane tomorrow.
Waiting for your reply.

Regards,
TAKSH

There are three things to be set up. IN THIS ORDER.

1. EPA, or end point adjustment. Can be set separately for each side, like left/right, up/down.
Start with 100% for left, right, up, down. Move the stick to each end one by one.
If the rudder or elevator stops before the servo has completed its rotation, the servo will stall and make a buzzing sound. If so, reduce the EPA to say 90 or 80% till the servo stops buzzing at full stick. Do this separately for up, down, left and right. Now you have the maximum throw possible without stalling the servos.

2. Dual Rate. This has a switch (may be one or two switches) with two positions, High and Low. To start with, both will usually be 100%. It is possible that the throws set in para 1 above are too much for test flight. So D/R is usually left at 100% in the High position, and is reduced to 50-75% in Low position. Start test flying with the Dual Rate switch or switches in LOW.

3. EXPO. This makes the controls less sensitive around neutral (usually by setting a NEGATIVE value of about 30%). Check your Tx manual. Verify whether it says NEGATIVE values for less sensitivity. Then check whether you input neg or positive values!
Expo can be set separately for each control, AND FOR EACH SIDE OF THE DUAL RATE SWITCH(ES)
To avoid confusion, I suggest you set the expo to ZERO for both rudder and elevator in both high and low positions of dual rate switch(es).

MOST IMPORTANT.
JUST BEFORE FLYING CHECK THAT THE CONTROLS MOVE IN THE CORRECT DIRECTION.
DO NOT FLY ALONE. TAKE A FRIEND WITH YOU.

What will happen?
50/50 chances of:
1. Prop breaks on takeoff, crash after hand launch
2. Successful takeoff or hand launch. Over control after a few seconds. Crash!

Don’t worry. This is normal.
If the model survives the test flight, GO HOME.
NEXT FLIGHT, NEXT DAY.

I recommend checking your thrust angle along with the stuff mentioned by @KK Iyer sir..

Right, of course.

Along with no warps and enough rubber bands!

And Taksh, in your second model (when you have theright materials) you have to improve your workmanship, yani karigari ka ster sudharna padega...

Meanwhile, best wishes for first test tomorrow

I need :
Good Kind heart, Hands jho har kaam kar sakta hai(apne hath jagan nath), healthy life.

Rain Rain Rain
it raining today  :(

Here’s some encouragement for you.
A 5 year old 20 second video...

https://m.youtube.com/watch?v=VJURc6hV_LQ

I live in Delhi NCR.
In few minutes, whole road become swimming pool. :(

I forget to tell you one thing.
Wind can pass from wings and fuselage because of dihedral angle.

@taksh,
Difficult to understand what you want to say.
Please use simple language.
Are you saying there is a gap between the wing and fuselage due to dihedral?
If so, just put a slice of thermocol to fill the gap.

Passing wind means something entirely different in English!

 "Are you saying there is a gap between the wing and fuselage due to dihedral?" yes you are right.
I forget to check rcindia.
I gave thrust angle yesturday.
Today i tried to fly in cricket ground but more than 50+ people  make circle around me. ???  >:(  Specially kids. >:( All kids near me and teenager and young people are in middle and back of circle. :o
First tried to fly plane using landing gear. but landing gear start bending... :banghead:
One propeller broken then i planned go to another park but return to same cricket ground again with one on duty police officer and parking wala.
hand launched and plane take a left turn. I moved only throttle stick. Now i think i was wrong i gave wrong thrust angle or i gave more thrust angle.
Result: 2 propeller broken and motor come out from it's place.
Lesson learnt : All things is not propeller and it is better to try to fly in khathh (crop landd).
Battery voltage 12.4 at home (before )& Battery 12.2 when came back to home.( after )
(https://preview.ibb.co/dwSaee/IMG_20180902_100813.jpg)

After hand launch, plane was going to left and plane stall hua. cg balanced thi. ab mujhe lag raha hai ki tail little heavy thi.

Experts correct me if I am wrong...
If you are not sure about thrust angle then keep it straight...

I hope you make it flyable...
Also check whether the elev is parallel to wing and rudder is perpendicular to fuselage...

Dear friend These thing will happen in RC , through crush only u will learn but one question I have  Have u practices in simulator if not do that first in order to save money and time.

@prafulla
I used simulator. Today i again tried to fly plane but and motor sperated from fuselage from crash.
I gave 50% throttle. I hand launched plane but nose of plane meet earth surface.
2 Crashes.
I think my plane  will fly plane after 4-5 crashs.

 {:)}

     Humble request

.sorry

@ taksh  , it was to motivate you.
my latest build

Sorry for the Threadjacking

@ambattuhari
I am not more interested in quad
Quad can be easily build and can fly. I made quadcopter with multiwii & ymfc-al but quadcopter was not stable.
I never used gps. I used mpu6050 and Arduino.
Quadcopter is completely different in comparsion of plane.
Making plane is easy but making plane to fly is difficult.
I am building 2nd model "Old Fogey" then my step is to find cg then my second step is electronics. I will install electronics.
then 3rd step is cg then 4th step is all rudder etc. then 5th is flying.
Now My focus is on Weight of the plane because blu baby is my first & heavy build.

"Saying Sorry"  & also saying many things. What is this?
You are talking about horse? Apna kabhi horse riding ki bhi hai?
Ghore trained hota hai lekin educate nhi hota.
Ek acha shikshak ghora ko phele apna app ko accept karna sikhayge.
jab thek ghora kisi ko accept nhi kar payge tab thek usko upar koi nahi baitha payga.

Quote are different in real life but sometimes, Quotes are right in life.
Albert Einstein Quotes : "The only thing that interferes with my learning is my education".
So, horse quote is not for me.

I think i said too much  ;D

nice  {:)} {:)}

As he said  in another post ,tag someone !

A rolling stone never gathers moss.
 and he (the OP) asked my age ....! (messaging)
I sm 52 years young..

Speech is silver but silence is gold.

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ARDUPILOT got it's name from arduino

And a lot of water has flowed under the bridge.

Challenge no 1.
Can you tune a quad manually ? (pixhawk)

Challenge no 2.
Can you build Q Plane ? (before losing interest in planes)

Rest In Peace. Blue baby

Answer to "Challenge no 1" :
I can tune quad manually but i am not more interested in quadcopter because of my budget.(i hope you can understand)
i am injured from quad many times. My F450 was hovering & then crashed and i build f450 using multiwii
Used arduino + MPU6050.
I also used arduino ymfc joop brooking.
I have kk board but i never used kk board.

Answer to "Challenge 2" :
I don't know Q plane.
I will make few planes then i will make custom designed & Q plane.

You think i will lose interest in planes then you are wrong. I got many injuries from quad, paper cutter, blade, propeller.
My hand was full of blood and blood was falling down like a rain drops from a surface.
I am still in this RC hobby.

It is just to motive you.

Another one

@ambattuhari
Please....

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