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Latest Activity

Ravi commented on Kirill's blog post SmartAP Power Distribution Board
"what is the Amp/Volt constant of the current sensor?"
Ravi commented on YC's blog post iPad LCD as Displayport monitor
"great job. I am still waiting for a display for bright daylight. can u shed more light on the driver board. Is it HDMI input."
Apr 15
Ravi commented on Kieran's blog post Using APSync to Build a Long Range Digital Video Link
"would it be possible for you to share the image for Raspberry Pi 2 pr Pi 3  configured for microhard modem for Tx side and Rx side."
Apr 10
Ravi commented on Marc Halcomb's blog post Ranger EX 757-3 (Auto Tune & Auto Trim)
"I use flaps at 60deg in full auto takeoff. I have never weighed it. buy my battery weight is 750 grams. I am using 16000mAh Li-Ion pack at 11.1V. The original motor is suited for 3S because of high KV."
Apr 9
Ravi commented on Marc Halcomb's blog post Ranger EX 757-3 (Auto Tune & Auto Trim)
"thanx for posting those PID numbers. It is lot of effort to generate those numbers even with auto tune. I think you have to lower the FBM min air speed to a lower value otherwise you will have problem landing it in FBW mode. the throttle will not…"
Apr 9
Ravi commented on Marc Halcomb's blog post Ranger EX 757-3 (Auto Tune & Auto Trim)
"I have been flying ranger for quite sometime. I like it because of it's sturdy design and high landing gear. I fly it with pixhawk. very important observation is that you have to keep elevator at 4deg+ even at neutral RC elevator stick trim by…"
Apr 9
Ravi commented on Mike Isted's blog post Post 4. MAAXX Europe. Connecting the Pi 3 to the Pixhawk
"thanx for this guide since most people find connecting pi with pixhawk challenging despite lot of support on ardupilot.org and that's is specially true with Pi3. great you highlighted the disabling of Bluetooth on Pi3. I am using Pi2 but still…"
Mar 30
Ravi replied to Ryan Nelson's discussion Pi in the sky (long range wifi based hexcopter)
"I really admire people working on raspberry pi. I have done a similar project based on ardupilot.org/. The raspberry pi is so easily available with plenty of community support. can u please share the rapberry pi code on this blog. I would love to…"
Mar 28

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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