Ravi
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  • New Delhi
  • India
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Latest Activity

Ravi commented on Ferhat Kurt's blog post Multicopter with Thermal Camera
"nice job done. where did u source the camera from?"
Sunday
Ravi commented on Dragan's blog post Defiance Airframe development
"@dragan, if you make the frame on CNC make an extra one, i will like to try one air  frame. ofcourse i will pay you for that."
Saturday
Ravi commented on Randy's blog post ArduCopter 3.2 ready for wider use
"as long as your TRIM_THRT is between 400 and 600  there is nothing to worry. if the TRIM_THROT is below 400 then you should consider reducing the prop size. second option is to add some weight to aircraft so that theTRIM_THROT value increases."
Nov 14
Ravi commented on Randy's blog post ArduCopter 3.2 ready for wider use
"I had flown my quad with AC3.2-rc14 with APM2.6. on the second waypoint the aircraft got stuck. i gave RTL but it did not respond. finally i flew the aircraft manually to a safe landing. exactly same thing happened on a other aircraft that had…"
Nov 14
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"i had flown my quad with AC3.2-rc14 with APM2.6. on the second waypoint the aircraft got stuck. i gave RTL but it did not respond. finally i flew the aircraft manually to a safe landing. exactly same thing happened on a other aircraft that had…"
Nov 11
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"@Randy, I also think it is because of vibrations. The foam tapes that I had put below the APM  about 5 months back had dried up. their softness has reduced considerably. so what happens is that when the craft is flown in winds there are more…"
Nov 10
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"@johnex, i do not think this is a vibration issue. because before auto tune there was no issue with the craft even withe the changed props. the loiter was great. in fact i never had any issue with the craft in last one year starting form AC3.0.1.…"
Nov 8
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"@randy, i upgraded to AC3.2-rc14 with APM2.6. i ran a auto tune since i had increased the prop size to keep the throttle in mid position. after auto tune while in loiter mode the craft suddenly starts climbing. this happens after 2 minutes of…"
Nov 8

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.
Hometown:
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…

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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…

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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…

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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…

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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
suneel
At 10:06pm on September 1, 2011,
Developer
John Arne Birkeland
said…

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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