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Trimming the aircraft before fitting APM

Started this discussion. Last reply by AlanGP Jan 16, 2013. 1 Reply


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Latest Activity

Ravi commented on Jeevan Kalanithi's blog post More gimbal news
"I have full faith. 3DR gimbal would be the best. it was long over due. what I suggest is that the gimbal should be able to accommodate common point and shoot cameras and not only hero cameras. this can be done by having an extra optional bracket for…"
Ravi replied to Adolfo Rodrigues's discussion Motor stall and crash. 3.3 rc8. What could have I done ?
"I think the issue is magnetization of motor stators. This happens with certain make/brand of motors. There is no ESC sync issue. I spent 3 months last year on this issue. motors with high poles get magnetized generally after 10 mins of flight. then…"
Ravi replied to Crady von Pawlak's discussion Two-piece FPV wing? in the group ArduPlane User Group
"I have lately shifted to EPP foam wings. they are so ROUGH and TOUGH. just toss them anywhere. you can even step over them. they fly beautifully. only thing that while trimming in manual mode they need about 3 degree of permanent up elevons on both…"
Ravi replied to Crady von Pawlak's discussion Two-piece FPV wing? in the group ArduPlane User Group
"@Thomas, I have a long stading problem, when I launch my flying wing in AUTO takeoff mode, the plane climbs perfectly at the selected pitch, but when aircraft reaches the desired altitude and turns to Waypoint 1, the plane looses height by 20 meters…"
Ravi replied to Crady von Pawlak's discussion Two-piece FPV wing? in the group ArduPlane User Group
"Crady, when u setup the elevons there would be two choices. use the choice in which the RC Tx is set as a normal 4 servo aircraft (rudder/ele/ail/thro). Let the APM do the mixing for elevons even in manual mode. by choosing this mode the…"
Ravi commented on Chris Anderson's blog post Facebook releases photos of internet-access drone
"I wonder what autopilot they would be using? may be pixhawk 2"
Ravi commented on Chris Anderson's blog post Pixhawk-powered solar plane sets new endurance record: 81 hours!
"the day when this aircraft crosses Atlantic using pixhawk, it would a the biggest celebration day for me. "solar impulse I am following you". why to put human life at risk when the same thing can be done by our 3"x2"x0.75"…"
Jul 29
Ravi commented on Chris Anderson's blog post Pixhawk-powered solar plane sets new endurance record: 81 hours!
"wow! just imagine the uses that can be put to for humanitarian work and other tech projects. "ONE short flight for atlantiksolar, a giant leap for mankind". hats off to you guys! this whole project has to be on wiki."
Jul 29

Profile Information

About Me:
Very eager aeromodeller. I find UAV is the ultimate fruit of all the hard work you do while making those miniature r/c planes and the heartbreak you get when they crash.
New Delhi

Ravi's Blog

counter rotating motor and prop set

Posted on October 24, 2011 at 10:08pm 13 Comments

this is a wonderful counter rotating BLDC motor and prop set ideally suited for planes between easystar and skywalker because of small footprint for the power equivalent 30xx size motors. it delivers 270 watts with 3S Lipo. the mounting would be bit tricky though. never tried but would order soon. very useful because prop diameter has to be restricted on pusher prop aircrafts with tail boom below the prop. once i get mine would put the performance parameters on the same blog. available at…


rotary engines for UAV

Posted on October 15, 2011 at 7:24pm 5 Comments

hi friends, on 14 October 2011 there was an exhibition organized by some 20 UAV manufactruing companies in New Delhi, India. It was wonderful to have something like this in India. The technology dispalyed was amazing. there were fixed wings and rotary winged UAV's. The show was won by this twin cylinder rotary engine designed for UAV's. The manufacturer claims to having nil vibrations in the engine. a very important issue for IMU's in the autopilot.  beautiful engine with circular cross…


Aluminum Housing for APM

Posted on September 30, 2011 at 5:30am 8 Comments

hi friends, whenever we fly in automode using APM there is always some chance of a bad crash. we do lose some expensive equipment. APM is quite expensive for almost $400 and not counting the mid night hours that go in debugging. so i have worked on a aluminum APM housing which is quite strong with 1.5mm thickness and is…


some good hardware for easystar fliers

Posted on August 12, 2011 at 8:06am 5 Comments

there is some good hardware combinations for easystar FPV. this is motor 2835-2200KV, a 6x5 propeller and a beautiful 35mm aluminium spinner form www.leadershobby.com. a lawmate 1.2Ghz tranmitter and a lawmate camera from www.hobbywireless.com. everything is working verywell with this combination. a 2200mAh zippy battery from www.hobbyking.com. just some information i…


Comment Wall (4 comments)

At 1:16am on July 23, 2008, jitendra gurjar said…
hi r u in uav s too . my mail id is jtendra.gurjar2gmail.com
At 10:50pm on July 24, 2008, Ravi said…
yes i am very much into model aeroplanes and trying to obtain a navigatin system for my project. i do not intend to built a system from scratch but use commercially avaialble systems. i think i am going in for micropilot with navigation, attitude, alt hold and telemetry. where r u located, i am in south delhi. ravi, myemail is ravinewdelhi@yahoo.com
At 10:41am on October 25, 2008, SUNEEL KAPUR said…
i have recently come to delhi. our interest seems to be same. call on 9717848302
At 10:06pm on September 1, 2011,
John Arne Birkeland

Hi Ravi. I do not know the Thomas Scherrer UHF system, but if the PWM sum is a standard 8 channel signal it should work. Just remove the propeller for safety and try and see if it works. It's not like anything will explode or anything if they aren't compatible. :)

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