RC India

Hello all,

I have a spare wing set which i had cut by Hot wire. Its a clean cut wing no issues. I am not getting time to make something.
You will have to use Spar and coat with paper to strengthen. although it is made of high density Thermacol.

The wing profile is SipKill which is a popular airfoil for tailless flying wings. Chord is 9 Inch. Span is 40 Inch. See Pics, ask details if you need.

Rs 350/- including shipping for main cities.
 

Beautiful and very clean cut bannaji.
 :thumbsup: for sale..

I'll take it

Someone already asked for it ...... Sunlikestar would be second if he backs out.

WoW...what a neat cut it is....:hatsoff:

just a note to people....

There should not be any damage as i will send the wings in the 1/2 inch outer cover {see pic }.

And it will be packed nicely to avoid the mishandling during transit. I am crossing my fingers regarding the postage fee!!!!

 

@rastsaurabh
Better than mine.
Will you take orders for specific aerofoils in HD thermocole.
350 is reasonable for cost+effort+postage.
Make it 400 if needed for better packaging.
Wish you well.

+1 Iyer Sir. I'm in too. Neat, surgical cuts. Love it.

No orders ..... as such. I am a freek for aero modelling but at present stuck in a job which does not allow me to make my crafts.... 2 of my planes are half built since last 6-7 months .... ( i am still learning to fly) ... had bought high density foam a year back, a good block of it cut into 2 inch sheets. since then keeping them safe from kids and wife.

3-4 people have asked for this.... i will consume the sheets till they last and i get time.....

Send me your aerofoil design and dimensions but please note no timeline commitment. wing span <40Inch  

I do use a little bit of sanding to smoothen places ..... like trailing edge, or the round shape for leading edge. I still have to master the hand movement at the L & T edges.

No aerofoil design, no time commitment from my end. Just do your best. My request confirmed.

Regards.

Prepared totake HD thermocole BLANKS. Pl pm me.
I want to see just what is HD/blue/pink foam.

See VCs post and mine.
Cant ask for a better vote of confidence.

the foam i am having is not the blue or pink foam its the white foam with 52 density.

Hi Saurab can you cut custom airfoil with tapering cord wider & thicker cord and longer wingspan.

That 40 Inches in one half of wingspan or complete length?

Hello Jayant the wing is posted today.

Hope you are aware of the making the wing ...... this needs

1. Paper covering with 50/50 fevicol/water sol.
2. elevons, servo, battery cutout
3. power system, motor mount
4. CG balancing
5. Lots of flying skill

Here is a thread which can give you details of first 3 points....( courtesy Rahul Roy)
http://www.rcindia.org/electric-planes/my-experiment-with-a-scratchbuilt/msg151673/#msg151673

Also see the CG for the wing sent to you. CG beginner to all-round (3.5 to 3.8 Inch)
the CG will be disturbed if you are using extension elevons (i.e not as cutout in the existing wing)...do use the CG calculator for the CG.... google it to find on net.


All the best!!! do post update of receipt of wing & your progress.

Very nice job, precise and clean cuts. Opens a world of possibilities  ;) ;D

ok rastsaurabh will do the same.... thanks..

cut a second wing for Anand...& sent.

Guys please update the receipt and quality of wing and material. I am confident that the wings will reach undamaged cause of packing i have done.

One more tip to make the motor mount from the packing shell.

I am excited to receive the wing :)

thank you for the motor mount tip  :hatsoff:

Got the package !

Excellent packing and superb cutting  {:)} {:)} {:)}

thank you  :hatsoff:

another wing cut and sent to Nithinraj....must get it today.

Nithin waited for 10 days for the same.

My own wing in process since last 2 weeks....Showing it to give idea how the canopy can be made with the wing shell.

 :hatsoff: :hatsoff: Awesome!! So when we meeting Saurabh!!! for early morning flying?

Hello Arvind, it does not look like the wing will be complete by saturday...... so lets see if we meetup on sunday...

Got the package in excellent condition.  {:)}  {:)}

nicely packed with cloth and bubble wrap. Thanks a lot Saurabh sir  :bow: :bow:

rastsaurabh - if you don't mind revealing your process...please post  a video of the thermacol being cut...

Saurabh.....fantastic wings ! I just finished a 6ft glider wing. posting soon :)

Boss, when do I get my set? (:|~

Please PM me your bank account details immediately.

Hello VC ... Pm'ed you.

Santosh its not a secret with all the videos on utube. I use the same process as shown here.... (except that his setup is on table mine is on floor)
 
http://www.youtube.com/watch?v=R0ZCnR_g6ZU

Will take video of my cutting next time.

An Useful Wing Built Video
http://www.youtube.com/watch?v=ShPTwumUFvg

http://www.youtube.com/watch?v=61zaB6b9_CA

Might be useful.

Awesome!!! Now Air Asia should be your benchmark  :thumbsup: :thumbsup:

Hello RC friends,

None of the buyers have come forward with their finished wings..... i happen to invest 2 days and finished my wing.....

Have a look and get inspiration to complete yours......

I used Black Spray paint ..... no matter how careful you are the spray eats the foam......

use with xtra xtraa care!!!

Hello Nitin,

I have used the triangle one as the motor mount as shown in the thread
http://www.rcindia.org/tools-materials-and-building-techniques/how-to-mount-electric-motors-on-foamies/msg116783/#msg116783

for the motor thrust angle it should be up thrust by 2-3 degrees or 0 degree ( at the same plane as of wing) but never down thrust.
A good video explains  http://www.youtube.com/watch?v=0QGp6DpD9og

thank you saurabh sir  :hatsoff: :hatsoff:

It looks awesome Saurabh sir!  ;D

after a long wait flew this wing post breaking and adjustment by the test pilot .... Arvind.

http://www.rcindia.org/rc-locations-and-clubs/rc-bolt/msg165297/#msg165297

I have built lot of wing cores using these pivot method, all tend to have same characteristics of doing a TIP STALL during turns and finally ending up in a Spiral. Here, only the airfoil at the Root chord can be controlled, and airfoil at the wing tip comes automatically. This method allows you to cut the wing core singlehandedly but with one drawback, unlike the bow method which needs two persons to get a good finished wing.
With the bow method you can control the airfoil at both root chord and the tip by cutting out different templates and inducing Washout at the wing tips.
Until recently I was not able to manage them fly properly till I had some WASHOUT and air fences added into them.
Give extra precautions while cutting out the wing tip.
Tip stall is where your wing tip stalls first and then your root. With the tapering of cord done due to this method, effective angle of attack near the wingtips will be more than that of root and would stall first. The stall will be progressive starting first at the wing tip, and ending at the root.
This makes one side of wing drop abruptly during slow turns, and if there are no air fences, airflow over the top of airfoil disrupted and aggravates the situation and ends up in a spiral.

Most of the ppl using the piovt method incorporate following to reduce tip stall. I personally have seen tip stalling have reduced but havent vanished though using these method.
1. Wash out ( Twist at the wingtips )
2. Wing fences
3. Tapered ailerons.


A very good initiative indeed, keep it up Saurabh.

I agree to you but if you maintain the wire temperature and speed of hand movement  you can get real good aerofoil at the tip as well.......... but if you sand the tips to very thin and end them as winglets the results are good.

Use a spring at pivot end to absorb inconsistency of hand movement....

how will you cut the airfoil?

Pls see video in the same thread

Hello Friends,

Another set of wings hot wired for wings. This time with a center fuse as CG becomes an issue with length of wing chord. so extended to have least problems and battery is secure.
copy of HobbyKing Darkwing.

slow progress started long back so cannot be a part of 6th Sweeps.

WS - 45"
Air frame weight - 220 Grms
Motor - Emax 1500kv
Battery - 2200mAh

another Pic

Motor mount solutions....
Any cap from deo or shampoo bottle. This is going to be DIY use sandpaper before sticking with EPOXY/ Fevicole
Laser cut mount proper solution - This specifically cut motor mounts for Wings made of 2mm ply

See images for idea

Finally after 6-7 months i could maiden this wing.

Maheen (Boltz) xpert flyer took it in Air and wow it flew well....check out the low pass-by's

Maiden video.... enjoy!!!

https://youtu.be/7st1OqYRhNU

Final Pics.... i am too bad at color !!

Can I order one ?....
If yes bank details plz

?

You want similar wing ?

Praveen & Manoj

As usual give me 7-8 days to make fuse template and new template for the wing.... with the improvements i identified.

1. Increase Wing chord
2. Presently trailing edge is 3mm which makes it a bit fragile.... plan to have it atleast 5mm.
3. Design a fuse ( something similar to Ritewing) so that its easy to make

Let me cut and showcase here then you deposit money.

saurabh
8826298725

Hello Friends
I have 2 orders to cut Flying wing... if anyone interested do let me know.

1m Wingspan.

regds
Saurabh 8826298725

Hello All,
One wing cut for Mr. Abhishek and posted for Bihar.

Pic explains as below.
> 30 density foam
> Wingspan - 1000mm
> accessories - Pushrods, Motor mount, Horns & Pushrod stoppers.
> CG can be calculated by CG calculator once it is assembled.

A comparison with a 900mm  Teksumo Wing.

Amazing sir jiii

@rastsaurabh Sorry Sir for updating late due to my hectic schedule last week. Received the wings few days back nicely packed without any damage. The wings are very professionally cut and has all the accessories needed for completing the build(except electronics). Thank you Sir for cutting the wings for me.