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Permalink Reply by Reto on June 26, 2009 at 3:00pm

Nice project, Mohanakannan. Very impressive assemblage. A thought I had looking a t the footage is that the engine/prop seems to have almost no downthrust. Am I right on this ? If that's the case, you probably will have altitude gains when throttling the engine full power instead of only horizontal acceleration. Downthrust and side thrust are important on such "trainer" like plane design in my opinion. On my 2m wingspan trainer, I have 2.5 degreees side thrust and probably something like 5 deg down thrust, and even so, the plane tends to climb when pulling throttle up.
Another thought is the wing chord which seems quite short in my opinion. You would have better lift with a some larger wings.
Finally, I probably would have designed a somewhat larger spanned landing gear for lateral stability during touch down.
But overall, based on the refurbished material you implemented in your aircraft, I can only say BRAVO and congratulation. I really hope you get it up and running until maiden. Please post your progresses here! Thanks for showing us westerners that much can be achieved with will, work, and little means, and that sometimes innovation is not only linked with money. I think DIYdrones is exactly the right place for such dedicated examples.
Hey, Mohanakannan, I hope you put an ArduPilot board into your UAV!

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ModeratorPermalink Reply by Gary Mortimer on June 26, 2009 at 3:14pm

Wow Mohanakannan

Look forward to seeing the flight tests, good luck.

G

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Permalink Reply by Morli_ on March 17, 2010 at 8:56pm

good work Mohanakannan ,
impressed with your interest and dedication. If you need help with getting it airborne or installing AP to it send msg with your mail ID I can organize or help you with it. Good Luck

Morli

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Permalink Reply by Danilo Marques Figueiredo on July 4, 2009 at 4:08pm

I´m working in an autonomous UAV, I projected my own airplane, fly by waypoints, auto pilot, all sensors and I'm working in a groundstationcontrole by joysticks.The airplane has 3 m wingspan, 1.5 m lenght, my desire is put a camera onboard to pilot this airplane in a long range, how much bigger the range is better.I don´t have a fotos for now...
Regards,
Danilo.

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Permalink Reply by Colin Rickett on March 17, 2010 at 5:47pm

I compete annually in a kite fishing contest in New Zealand. Kite fishing involves the use of a kite to drag 1000 meters or so of nylon out to sea with 10 baited fish hooks on the end. You basically leave it out there for 90 minutes and then pull it in to see what you have got. Each year the contest offers a technology prize that I would like to win. Therefore I am looking to have the kite drag a float that contains an instrument package - gps, depth sounder and transmitter. I figure that I should be able to transmit the location of the end of the line relative to me on the beach and the depth of water at that point and then use accumulated data (on laptop) to target specific water depths and/or distances. I should also be able to build a profile of the sea floor as well. So, not really a UAV, but the Ardupilot seems to have all the components I need other than depth, but I can solve that locally. Right now I am reading as much as I can to avoid the need to ask stupid questions and convincing my wife that the $500 kiwi bucks I need will be a good way to keep me out of trouble. I am wide open to suggestions if anyone has any.

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