Gusty and myself tried two Lady birds one with AP 0.09 and one with Thunder tiger GP 0.07 and Cox 0.049 Sure start. The Lady Bird with AP 0.09 did amazingly well.






However my TT GP 0.07 was having huge starting Issue either due to wrong glow plug or poor setup. Decided to try with a Cox 0.049 which was barely able to keep it airborne so decided to make this smaller model.

550mm Wing Span Biplane with coro AUW is 370gms Should fly I hope.

 

wow sir looking amazing..  to see in flight...
   nice job..

Thanks Arun.

With 6x4 APC prop it is Max RPM achieved is only 12000. Static thrust is working out only 250 Gms. i.e Thrust to weight ratio of just 0.67.

Gusty what say launch it before you reach here  

I am sure once airborne RPM will peak more.

WOW!!! How did I miss these beauties?

VC Thanks. Dared to venture in your domain, my First Coro bulid    . Thanks to you for the coro.

Looks real good, like it doesn't want to sit on the ground but be up in the clouds!

Thankyou Sir, 

hey i just wanted to ask that how did u mount the engine ? and which material did u use to make it ?

Engine is mounted using wood self tapping screw on a wooden former made out of 1/2 cm lite ply former. Since Cox has a peculiar air inlet at the back its mounted on a two lite ply rail stuck on the former which accommodates the air intake in the groove formed in between. 

ok thanks ...  BTW lovely build ... any idea of the total cost ?

Thanks

cost of coro is negligible. The cost is only of the Cox engine, accessories, servo, BEC, receiver and such electronics.


would say

1. Rs 1100/- for engine
2. Rs 400/- for fuel tank and accessories
3. Rs 300 each for servos four of them say Rs 1200/-
4. Rs 300 for BEC.
5. Rs 350 for a 2S Lipo.
6. Rs 2300/- for receiver.

Say total approx Rs 6000/-

Quote from: sundaram on January 07, 2013, 12:29:59 PM

Gusty what say launch it before you reach here 

Sandy
tell me where is the house keys, will launch it before you come back from Bagdogra,   

Gusty Maiden without you was out of question. Defenitely on 19th before I leave for pune it is going to be airborne. 

thanks man ... don't mind me asking so many questions as I'm planning to build my first rc nitro plane out of coro ... also could u tell me where did u buy the parts like engine, servos etc and stuff ? are these available in Delhi ? did u get them from the cox engine website ? how much was shipping and custom duty on it ? .... thanks ...

The Engine was bought from Cox Engine Web site Canada. Don't remember the shipping, it was through Priority Mail USPS so not much say about $5 that was with other accessories for engine. No customs though. Other parts bought from Indian LHS like RC Bazaar, RC Dhamaka both Bangalore based and my favorites.

thanks friend

hey umm how did u attach the wood to the coroplast ? sorry but am getting excited abt my build which gonna be a lot like urs

you can use any one of these, Rubber Solution ( Dentrite or similar) or CA or Hot Glue.

ok thanks

hey umm how would a asp s21a engine work ? is it suitable for coroplast or corflute builds ?

coroplast and coroflute are just the same material called differently.

I know that ... I just mean that the engine I stated isn't too heavy for smallish plane right ?

Don't make it so smallish. Make it slightly bigger!! for ASP 21 

ok thanks my friends ... .. u helped me a lot

Hi Sundaram

If I remember correctly, you have purchased the AP 09 from hobbyking, haven't you. Can you please share your experience for the same. How is the engine running and what is the power from the engine.

Also what size plane is suitable for it.