Title: Coro build su -30 mki Post by: wingmanbunty on July 26, 2014, 11:07:08 PM After my euro fighter Coro build this is my second attempt to build fighter aircraft. truly speaking my euro fighter did not did well because the avionics transmitter I have do not respond good in delta configuration . I tried my best with all your support but did not fix the prob. So the conclusion was to design airplane with simple aileron and elevator control and this is my second Attempt to build Coro fighter airplane Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 26, 2014, 11:08:43 PM The weight of the airplane is going to be near about 300 grms approx. As I expected all with equipment
I want my airplane to perform some aerobatic so I place large size of control surfaces Battery I am going to use Is 900 mah 7.4 volt 25c wolf pack lipo 20 amp esc avionics Avionics 1780 kv motor Prop size is 6x4 I am expecting to get 300 grm trust and airplane will not be able to climb straight or hover But can perform some aerobatics like loops roll etc. Plan is simple drawing from net and I assume length to be 74 cm and wing to be 61 cm Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 27, 2014, 09:37:00 AM All parts cut and finalized
Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 27, 2014, 07:26:31 PM i am happy with the shape come out in right proportion
in evening i had done paint job. Title: Re: Coro build su -30 mki Post by: topalle on July 27, 2014, 07:51:30 PM Awesome...
Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 27, 2014, 08:11:22 PM @topalle thanks
after 78 visit to my post somebody like it. Title: Re: Coro build su -30 mki Post by: manojswizera on July 28, 2014, 11:53:18 AM great going bunty.
What coro size you have used ? If the coro is weak at wings it will flutter in air at speed. You can put a thin carbon or wood spar, horizontal at wings ---- Title: Re: Coro build su -30 mki Post by: sbajare on July 28, 2014, 01:05:06 PM for parkjets 6mm biofoam is best.
coro will add wt. not fly the way u want. Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 06:51:21 PM @sbajare
you are right sir weight is the main issue but i am sure to complete the project in the weight range of 250 grm including motor prop battery rec ,esc . the avionic battery i receive this time is 10 grm heavy i have to manage that also my last build eurofighter had 80 grm of wait it was also in coro including two 9 grm servo ,(motor , battery, esc ,receiver not included) Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 07:05:18 PM @manojswizera
sir it is 3mm coro you said right flutter is i had experience it in eurofighter , as coro is flexible material i am using spars inside the hollow part of the sheet and outside also you can see in the picture. Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 07:11:02 PM Installation of motor
Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 07:12:29 PM Installation of servo , motor esc completed .
Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 07:14:32 PM Ready for the flight
Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 28, 2014, 07:22:27 PM @sbajare
sir i am worried about the power i will get from this motor i am using 6x4 prop and as manual say it give me 300 grm thrust i think my model is okay for flying but i wish i could get more power i want more power i have 8x4 prop but it can not be fitted in the airplane is there any more option of prop to get max thrust Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 29, 2014, 10:01:50 AM The test flight was okay from the design and strength of the structure point of view also fly stable
Because twin rudder works better for it controls respond was good Truly speaking I wish I could have more power for this model I build the the fighter airplane I want that feeling you know roll loop straight up flight that give more fun Title: Re: Coro build su -30 mki Post by: wingmanbunty on July 29, 2014, 10:04:15 AM Conclusion to this project is fly this model with min of 450 to 600 grm thrust
I can fly it and I have 8X3.8 size prop and I can get 650 grm thrust but my design of airplane cannot fit more than 6”prop Second thing is the torque produce by large size prop does not seem me practical to apply on such kind of model project is over thanks for support. :hatsoff: :hatsoff: Title: Re: Coro build su -30 mki Post by: topalle on July 29, 2014, 10:08:15 AM nice sir...
Now build a bigger one... :) |