Ravi
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  • New Delhi
  • India
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Latest Activity

Ravi replied to John Mulligan's discussion Px4 Testing
"hi martin, i am facing the exactly same problem. i can connect to mavlink with USB/3DR with arducopter. i cannot connect with mavlink when i upload arduplane. it is definetly the driver problem. i am sure it would be sorted out soon."
Monday
Ravi replied to John Mulligan's discussion Px4 Testing
"@Martin, i strongly believe that PX4 driver is more compatible with windows XP than vista. but eventully the problem will be resolved. i am facing a very wiered problem. when i upload arducopter i can connect mavlink to mission planner. but when i…"
Sunday
Ravi replied to John Mulligan's discussion Px4 Testing
"@martin, try another computer which has very few com ports in use. mission planner now has a reliable USB driver for PX4. it worked for me. i tried another computer and it worked. actually PX4 has a software based USB to serial converter and that is…"
Friday
Ravi replied to John Mulligan's discussion Px4 Testing
"Hi gary, no luck with the new driver. still same. i get mavlink data for arducopter but for arduplane. with 3DR radio also same status. arducopter sends data but arduplane does not.;"
Friday
Ravi replied to John Mulligan's discussion Px4 Testing
"@Martin, i can upload all the firmwares to PX4 using mission planner. i cannot connect mavlink to mission planner when i upload arduplane. i can connect to mission planner when i upload arducopter. this sounds very strange but is happening."
Friday
Ravi replied to John Mulligan's discussion Px4 Testing
"gary, i am able to connect to mission planner when i upload arucopter firmware. but cannot connect to mission planner when i load arduplane 2.73. i tried on both the boards. may be i should try aruplane 2.72"
May 15
Ravi replied to John Mulligan's discussion Px4 Testing
"Jhon@ what i found that PX4 communicated with mission planner when i changed the laptop. it would not communicate with my earlier laptop although everything seemed normal. the old laptop reconized the PX4 when connected and even could load the…"
May 14
Ravi replied to John Mulligan's discussion Px4 Testing
"hi gary, thomas, i was able to connect the PX4 again with mission planner 1.2.50. the problem was with laptop com port addressing. i tried another laptop which had very few com ports assigned. PX4 got connected. PX4 is very sensitive to com port…"
May 13

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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