Sweepstakes - RCTLG - K K Iyer

Started by K K Iyer, May 10, 2014, 02:40:03 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

K K Iyer

@sanjayrai55 sir,
Meri poonch jal gayi
Was expecting sahaanubhuti!

Wonder if anyone will buy that HK rubber from me at a discount...

@sundaram sir,
Haven't moved out of home for fear of getting caught!

Henceforth will fly only DRONES...

ashok baijal

Sad to know the end to a beautiful model.

K K Iyer

Needs a wrap of glass cloth near the tail, and a new fin.
New pull strings for elevons.
New towhook.
If the Rx and servos are not fried, should be back next weekend.
On 20m of slightly rotting surgical tubing and 50m thread...
With the keychain cam instead of nose weight

Flight of the Phoenix inspiration...

bmblb

 Iyer Sir....that's a fantastic project. Getting 50-60 sec flights is a great deal - Congratulations !

I have tried my hand at HLG and got about 30-35 sec flights with javelin launch for a 200g, 48in span plane.

All three pics are of different wings - the orange one performed the best. KF2 does not work very well for HLG/DLG. and the sanded depron wing is yet to be tried.

Nvertheless, an awesome project
"The Flight Of The Bumblebee"

bmblb

Oops....here are the other pics
"The Flight Of The Bumblebee"

bmblb

Here's the one with KFm2 wing. Somehow not sufficient lift in a HLG but flies well in a powered plane. The orange one is made out of EPS, reinforced with Balsa spars.
"The Flight Of The Bumblebee"

K K Iyer

@bmblb,
Thanks.
How did you manage to sand the depron so accurately?
CF for LE is a good idea. But may need a 3-5mm spar too.
You could also try glass fibre covering (detailed somewhere earlier in this thread)
Best of luck.
Regards

For Free Flight Tip Launch Glider, you may like to see this:
www.rcindia.org/kites-trains-free-flight-and-all-others/for-the-5th-sweepstakes-first-model-k-k-iyer/msg181492/#msg181492

bmblb

Thank you Iyer Sir.......making a wing is almost therapeutic for me. It gives me great joy ! Here's another pic of the wing.

It felt like Hattori Hanzo making The Sword for Beatrix

just kidding  ;D

"The Flight Of The Bumblebee"

bmblb


Sir....what do you think about just taping it? Would the weight penalty be significant?
Also, the sanded wing has a bit of an undercambre - depending on how I tape it, I can TRY to either increase or decrease the cambre.

Which would be a better option? Span is 1m. Chord about 6.5in
"The Flight Of The Bumblebee"

K K Iyer

Haha.
My wing needed eight hours of sanding.
But recently got a razor plane and some 10mm balsa...

Weight will not be a problem with tape, but strength will be inadequate without CF spar.
Try not to increase camber.

bmblb

Just curious about the razor plane - is it the Master Airscrew one available on HK or is it the type which uses a regular razor blade(7 o'clock, topaz type)?

Apologies for digressing from the RCTLG.
"The Flight Of The Bumblebee"

bmblb

Quote from: RCNeil21 on March 19, 2015, 01:18:31 PM
surgical tubing gets cracked when used in sunny days. What other alternative for surgical tubing?

"Storing the rubber in a plastic cover with some oil helps retain its integrity longer"
"The Flight Of The Bumblebee"