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Trimming the aircraft before fitting APM

Started this discussion. Last reply by AlanGP Jan 16, 2013. 1 Reply


Ravi's Page

Latest Activity

Ravi commented on Amit's blog post Electric Quadcopter world record 3 hours 43 minutes
"rob, i remember when you first started on Trex 600 heli with APM2.0 i was following you. you have come a long way since then. i diverted to multicopters. i am still fascinated by helis and would like to try soon since we have pixhawk now. which…"
Jun 27
Ravi commented on Luis Alves's blog post AlceOSD - Graphical OSD for APM/PX4
"I would surely like to try one. how can I get one?"
Jun 12
Ravi commented on Sergio O.'s blog post World Drone Viewer (Mexico )
"what would be the cost of the module? very useful in locating lost drones. if the price is kept low it will be a necessary item specially for fixed wing drones which fly a longer distance."
Jun 11
Ravi replied to befinitiv's discussion 3+km HD FPV system using commodity hardware
"i think once few of us have flown the aircraft using this digital video link this should go on the wiki. this was the last missing part of now perfect FPV/autonomous aircrafts. this needs to be on the wiki fast. lot of us are not into Linux…"
Jun 1
Ravi replied to befinitiv's discussion 3+km HD FPV system using commodity hardware
"I am a crazy FPV flyer but not into Linux. as expected we cannot learn all trades. I want to try this HD video at any cost. I am starting with buying raspberry pi. the latest model is Pi B+. is it same as Pi A+?"
Jun 1
Ravi replied to befinitiv's discussion 3+km HD FPV system using commodity hardware
"I am a aircraft engineer, I can build good fixed wing drones and configure APM into them. I am very weak in IP communication software. is it possible to buy preconfigured raspberry pi for this HD link. so that all one has to do is to fit…"
May 21
Ravi commented on Andrew Tridgell's blog post APM:Plane 3.3.0 released
"the ARMING_DIS_RUD is somewhat confusing. the 0 and 1 should be reversed. to disable rudder stick arming it should be '0'. to enable rudder stick arming it should be '1'. the default can be kept to '1'. the parameter…"
May 20
Ravi commented on Chris Anderson's blog post Gumstix announces new micro-UAV APM/P44 compatible dev board
"anyone having link on uploading PX4 firmware to this board."
May 8

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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