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Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"hi randy, nice to see you back on the blog. can u add some instructions on using external LEDs on pixhawk. i cover my pixhawk with depron canopy to avoid heating becasue of direct sunlight on pixhawk. (sun is very hot here 45 deg celsius) so…"
Aug 12
Ravi replied to mark coleman's discussion Pre-fetching map tiles bug?
"i face same problem with some tiles. they just will not go to higher reolution and keep displaying in very low resolutions."
Jul 30
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"thanx randy, christian for the information."
Jul 29
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"what is the parameter for enabling telemetry output on telemetry port 2 of pixhawk AC3.2-rc3. is there any change?"
Jul 29
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"thanx christian"
Jul 26
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"great job randy, so now we have confirmed dual compass support in the sense if external fails the internal would takeover. and now the calibration for the internal compass has been enabled in rc3. i think same thing also applies for dual GPS. the…"
Jul 26
Ravi replied to Randy's discussion ArduCopter-3.2 beta testing
"thanx randy for clarification. after loading rc3 on pixhawk the mission planner was asking for 2nd compass calibration. i think rc2  was using only one compass. either internal or external. rc3 uses both compasses. is that right?"
Jul 25
Ravi posted a discussion


This modem has been around for past two years. Has any one tried using this modem. it raises curiosity ho can this be used with APM and Pixhawk.the description is as below:BV250RFL Long Range 250mW FHSS Transceiver for FPV, LRS, RC robots or other projects. Description: The BV250RFL RF Module combines a state-of-the art…See More
Jul 24

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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