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Latest Activity

Ravi commented on Ellen Zhu's blog post Skywalker New Catapult On Sale for Fixed Wings
"What is the cost for smaller version?"
Jan 27
Ravi commented on yangdaonline's blog post Lightweight 30X optical zoom camera for the drone
"there is a correction. The weight of tarot 3-D gimbal + 10x HD camera is exact 300 grams and NOT 400 grams."
Jan 18
Ravi commented on yangdaonline's blog post Lightweight 30X optical zoom camera for the drone
"your gimbal is a wonderful piece of gimbal. The weight needs to be brought down to 500 grams to be used on medium size drones. I think it is quite possible to bring to 500 grams. I have a tarot 3-D gimbal fitted with 10x zoom HDMI out camera…"
Jan 18
Bruno De Michelis commented on Ravi's blog post rotary engines for UAV
"Cubewnano does not exist any longer, anyway."
Apr 24, 2018
Ravi commented on Charles Blouin's blog post 10 km high flight with a 1kg quadcopter!
"propeller aircrafts have problem above 4000 meters because the air density decreases rapidly."
Mar 23, 2018
Ravi commented on Charles Blouin's blog post 10 km high flight with a 1kg quadcopter!
"it is not that I do not believe it. but flying a small quad at 10000 meters defies all logics 1. The baro would fail (a correction has to be applied) 2. the gyros would fail (-48 (deg) 3. the batteries should fail (-48 deg) 4. The RC has a poor…"
Mar 23, 2018
Ravi commented on Abhinav Pandey's blog post CF flying wing
"@abhinav, I want to use it for general flying. I already have EPP and EPO flying wings. can you please provide your email."
Feb 12, 2018
Ravi commented on OG's blog post Professional DYI radio communication equipment has changed from analog to digital
"can you please send a pdf catalog at novaent@yahoo.com and a link from where it can be bought."
Feb 11, 2018

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 6 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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