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Latest Activity

Ravi commented on Chris Anderson's blog post Full Solo launch video
"chris, it such a wonderful news that you are keeping the Pixhawk 2 open source. we will look forward to it, in the mean time we are eager to know how the pixhawk 2 and companion computers are linked. may be you can post a graphics of the layout and…"
Ravi commented on Víctor Mayoral's blog post Erle-Brain v1.1: The most complete Linux autopilot
"so it has video over wi-fi. how would we give input for video (HDMI, H.286, AV)"
Mar 31
Ravi commented on Bertrand Duchiron's blog post Lynxmotion Quadrino Flight Controller (ex Flyingeinstein)
"actually it gives lot of satisfaction to the designer. the feeling of achievement. hardware is the easy part. what about software......?"
Mar 2
Ravi replied to Justinclouds's discussion Low cost, high endurance, disposable fixed wing platform
"your best bet could be telemaster with a modified high lift aerofoil. wingspan 2 meters. I tried 10cc evolution gas engine. with 1.2 ltr of fuel. it gave three hours of cruise with a 11x6 prop. the max you can get is 10 hrs. the speed would…"
Feb 3
Ravi replied to Gavin Greenwood's discussion APM/Pixhawk Long range HD FPV + Telemetry your choice (900Mhz/2.4GHz/*3.65Ghz/5GHz)
"Gavin, I need 3 miles range when flown at 700 feet. do you think that would be possible. I would like to wait for new version V2. can you also integrate input from a normal fatshark camera with normal "AV out". this would make it useful…"
Jan 30
Ravi replied to Gavin Greenwood's discussion APM/Pixhawk Long range HD FPV + Telemetry your choice (900Mhz/2.4GHz/*3.65Ghz/5GHz)
"Gavin, what is the weight of the airborne unit? that should be critical to mount on small multicopters."
Jan 25
Ravi commented on Chris Anderson's blog post Latest pictures from the 3D Robotics Tijuana factory
"Chris, I am very impressed to see the pics of your facility. I am member of diy community right form it's inception. I saw you invent and grow. The real American dream come true. keep it up!"
Jan 25
Ravi commented on Bertrand Duchiron's blog post Cheap IR LIDAR Lite (90$)
"one more wonderful gadget for diy droners. I will surely order and try one. does the signal pins have to be optically isolated?"
Jan 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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