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Long endurance, heavy lifter multi-rotor platform.

Started this discussion. Last reply by Philip Sulikosky Sep 24, 2012. 3 Replies

Take off Weight vs Flight Endurance for a heavhy-lifter multi-rotor UAV platforms

Started this discussion. Last reply by Jordan May 4, 2012. 3 Replies

Ultra high speed battery charging

Started this discussion. Last reply by Sgt Ric Mar 19, 2012. 2 Replies

 

MC's Page

Latest Activity

MC commented on patrice.rance's blog post VERTICOPTER
"Very nice!! "
Dec 20, 2012
MC commented on Duy Pham's blog post Change Hex to Y6
"Nice platform and nice flight How long you can fly with 2kg payload ? Do you count battery weight as payload weight? What is your empty (without payload) weigth of your system?"
Dec 20, 2012
Philip Sulikosky replied to MC's discussion Long endurance, heavy lifter multi-rotor platform.
"Is it possible to use an IC engine in a 600 / 700 heli for decent quality AP and avoid the issues of vibration and smoke? Never tried it, but I have an electric but hauling suitcases of lipos around is hard work. Point me in the right direction if…"
Sep 24, 2012
MC commented on robert mcintosh's blog post Analog self-navigating AP drone.
"This is very interesting. Thank you for sharing this interesting video with everybody. You are luck that seagull did not drop it into the sea or drop on to concrete from a height. "
Sep 14, 2012
Brad Hughey replied to MC's discussion Long endurance, heavy lifter multi-rotor platform.
"This question keeps coming up.  Perhaps there ought to be a multicopter design FAQ somewhere.  You're right, of course - there's no getting around the 10X + energy density advantage of internal combustion engines and chemical…"
Sep 12, 2012

DeveloperR_Lefebvre replied to MC's discussion Long endurance, heavy lifter multi-rotor platform.
"Wow, that's a tall order.  Very tall.  You will have to use very low kV motors, with large props.  The frame would have to be EXTREMELY light weight, and the camera will have to be very very small. If you want to carry a 1550…"
Sep 12, 2012
MC posted a discussion

Long endurance, heavy lifter multi-rotor platform.

Hey,I want to ask expert advise on a long endurance (about 40 minutes) heavy lifter (1550gm camera) multi-rotor platform.Can you speculate or advise me what would be the good starting point of building a multi-rotor (quadrotor, or hexacopter or octa copter) to carry 1550gram camera for about 40 minutes flight time?Can you advise me how to select motor and propeller for such a platform?Thank you.See More
Sep 12, 2012
3 Comments
Jordan replied to MC's discussion Take off Weight vs Flight Endurance for a heavhy-lifter multi-rotor UAV platforms
"a general rule i learned for quads at rcgroups: find the total thrust for half of the motors...that needs to be >= the AUW. flybrushless is an awesome site!"
May 4, 2012
MC commented on AirviewLive's blog post Shielded hexacopter is safer than the rest
"It looks cute. 3.7kg empty weight sounds too heavy; how long it flies (i.e. what its endurance)?"
May 2, 2012
MC replied to MC's discussion Take off Weight vs Flight Endurance for a heavhy-lifter multi-rotor UAV platforms
"Mike, Thank you for your reply and for the information. I will investigate the content of http://www.flybrushless.com/ Thx"
May 2, 2012
Michael Pursifull replied to MC's discussion Take off Weight vs Flight Endurance for a heavhy-lifter multi-rotor UAV platforms
"You're starting from a good place, knowing your target weight. This is the most important thing for designing an efficient (read, longer flight times) aircraft. Here are a few tips: * fewer blades, more efficient     * 1 blade is…"
May 1, 2012
MC posted a discussion

Take off Weight vs Flight Endurance for a heavhy-lifter multi-rotor UAV platforms

Hey,Take off Weight (TOW)  and flight endurance are inversely related attributes for most of UAV platforms.I want to build a multi-rotor UAV platform capable of lifting 2.5kg payload (+ weigh of platform+batteries+electronics etc) and try to hover at as long as it can (in a calm day). In order to design and build such a platform I need to understand (or educated guess) about factors effecting the lift and endurance such as propeller, motor, ESC etc.Do you know any website that can help to…See More
May 1, 2012
3 Comments
MC commented on Michael Oborne's video
Thumbnail

RC Flight Over Ocean

"Nice video!! I assume it is somewhere in Western Australia (?) What platform, camera, FPV (if any) did you use? "
Apr 22, 2012
MC commented on Andreas M. Antonopoulos's group Telemetry over cellular IP
"Is it legal (in US, Europe, NZ and in Australia) to use cellular network from an airborne (manned or unmanned) platform? Here is a statement I've found "According to current U.S. Federal Aviation Regulations, the use of cell phones on any…"
Mar 27, 2012

ModeratorSgt Ric replied to MC's discussion Ultra high speed battery charging
"If you try testing this out, be sure to record a video... I love fire and explosions!  "
Mar 19, 2012

ModeratorGraham Dyer replied to MC's discussion Ultra high speed battery charging
"No, unless you want to kill the battery. There are no other batteries that can do what you want, it's the holy grail of batteries, think of the cell phones and laptops/tablets that would benefit, millions and millions are being spent on…"
Mar 19, 2012

Arduino Mega based UAV Autopilot

Hello Everyone,

Objectives

I am new to autopilot development and I want to build an autopilot based on

Can you help?

Can someone point me to the right direction for the following;
  • How to fuse all the IMU+GPS+Airpressure sensor data together to estimate UAV's state (its position, orientation, velocities and accelerations)?
  • How to create a "realistic" UAV flight dynamic model of a popular UAV airframe (such as Mutiplex EasyStar ) for simulation?
  • How to decode multi channel PPM signal from a RC receiver using Arduino Mega?
  • How to tune PID controller for throttle, elevator, aileron and rudder?

MC's Blog

The longest flight time you had with your EasyStar

Posted on August 15, 2009 at 3:55am 6 Comments

Dear DIYDronians,

What is the longest flight time you had with your EasyStar using additional batteries?
What is the MTOW for EasyStar?
How much extra weight (extra batteries) it can carry?

Thx

Accurate 3D CAD model of the Multiplex Easy Star

Posted on May 26, 2009 at 7:59am 3 Comments

Do you know if there is a publicly available 3D CAD model file of the Multiplex Easy Star (preferably an accurate)?

Ardunio Mega code to read MicroMag 3-Axis Magnetometer

Posted on April 25, 2009 at 11:23am 0 Comments

We can calculate the UAV heading (flight directions) from multiple consecutive GPS readings if the UAV is moving. However, for a hovering, this method would not work and we may need a magnetic compass or a magnetometer (like MicroMag 3-Axis Magnetometer from SparkFun).



Is there any code out there for… Continue

Attitude determination using multiple GPS receivers

Posted on April 20, 2009 at 3:08am 1 Comment

Is it possible (how) to determine UAV's attitude (orientation) using multiple (two) low cost GPS receivers (like those on SparkFun's GPS page) ?

Climb or decent to altitude and altitude hold using pitot/static sensor suite

Posted on April 19, 2009 at 2:42am 6 Comments

GPS receivers (without DGPS or WAAS corrections) do not provide accurate altitude information. In order to maintain accurate altitude, a pitot-static may be used.
Is there anyone in this DIY Drones network who used a pilot-static sensor suite for his/her Ardupiloted UAV?

Comment Wall (4 comments)

At 8:21am on April 12, 2009, MC said…
Can someone explain and show examples how to fuse all the IMU+GPS+Airpressure sensor data together to estimate UAV's state (its position, orientation, velocities and accelerations)?
At 8:35am on April 12, 2009, MC said…
How to create a "realistic" UAV flight dynamic model of a popular UAV airframe (such as Mutiplex EasyStar ) for simulation?
At 8:36am on April 12, 2009, MC said…
How to decode multi channel PPM signal from a RC receiver using Arduino Mega?
At 8:47am on April 12, 2009,
ModeratorSgt Ric said…
Posting questions on your own page does not mean many people will see them.
Find an appropriate blog topic heading and add your threads there instead.

You need to be a member of DIY Drones to add comments!

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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.

A list of all T3 contests is here. 

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