All Blog Posts (11,244)

Transponders shrinking to meet FAA drone demands

Many might already know that congress recently signed the Federal Aviation Administration Re-authorization Act, which orders the FAA to make way for drones in the National Airspace System (NAS) by 2015.



It seems that the rules will remain the same for recreational drones flying below 400 feet (which constitutes the vast majority of activity on this site). But…

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Added by Matthew Schroyer on February 13, 2012 at 2:30pm — 3 Comments

BAE provides details of 'structural battery' technology

Lacking on technical details, but has an interesting quote and image regarding mini UAVs

http://www.bbc.co.uk/news/technology-17014808

Added by Simon McIlroy on February 13, 2012 at 2:30pm — No Comments

Composite FPV Drone from Hobbyking

The H-King Darkwing is a huge composite flying wing designed specifically for FPV, with its sleek design and menacing lines, this is one fantastic looking model!

Specifications:

Wingspan: 1727mm

Length (fuselage): 762mm

Wing Area: 49.3dm2

Dry Weight: 1400g

Required:

Your own 4 channel TX/RX with delta mixing

42mm Brushless…

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Added by CrashingDutchman on February 13, 2012 at 2:30am — 6 Comments

3DR battery tray and camera mount.

Not being overly chuffed with the battery mount on the 3DR and wanting somewhere to mount a camera, I decided to make another layer to the quad. A third plate below the quad seemed idea. 

I fished out a scrap of unused fibreglass PCB I had in my goodie box. I took the quad apart to get at the bottom plate to copy as a template.

The normal plates have a series of 3 holes in the middle of each edge which seemed a perfect option to mount stuff. I…

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Added by Crispin on February 12, 2012 at 3:30pm — 1 Comment

Improving GPS accuracy

It seems there are methods to increase accuracy of the GPS location to cm using a reference station network.

Real Time Kinematic (RTK) satellite navigation  is a technique used in land survey and in …

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Added by ionut on February 12, 2012 at 2:00pm — 24 Comments

filming anti-ACTA protest in Tartu, Estonia

I have been invited to do video broadcasting from anti-ACTA demonstration that happened on 11th February in Tartu, Estonia - one of many protests of this kind that took place in Europe this saturday. Of course, I took hexa (arducopter based) with me - idea was to make some photos from above, if that would be possible..

Friday evening however I decided that actually I can "spice it up" a bit...

On saturday it was really cold - I'd say about -15C…

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Added by Jaan Kronberg on February 12, 2012 at 1:30pm — 4 Comments

Incredible Flight Endurance!

I came across this video on my youtube feed today. How is this kind of endurance possible with standard LiPos? The last best flight time of 45 min was achieved by Holger Buss with his hexa mikrokopter if I'm not wrong. Can anybody shed light on how microdrones managed in excess of an hour?

Added by Azam Shahani on February 12, 2012 at 10:15am — 24 Comments


Developer
Full autonomous slope soaring with the ThermoPilot v5.2

Here a video a the latest firmware of the ThermoPilot v5.2 (2012 version) which uses a new algorithm (MLA) tested in HIL mode on Xplane v9.70 during a full autonomous slope soaring flight in high mountains. The ThermoPilot is a full enhancement of the ArduPlane v2.28 which adds the Thermal Hunting capabilitie and some…

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Added by Jean-Louis Naudin on February 12, 2012 at 9:23am — 38 Comments

Retracting Skids/Landing Gear

I've never seen retracting skids on an N-copter before.

The Flying Fern folks' octa has that to get the skids out of the way of their DSLR copter holding a C300 :-O

Added by Ken on February 12, 2012 at 8:42am — 2 Comments

TBS @ USA: Road Trip!

Early december last year we spent a couple of days vacationing in the wild west and shooting some FPV videos. The videos will be released on a weekly basis over the next 2 months or so. We're kicking off the Road Trip with Lake Tahoe:

Follow the Road Trip on:

Facebook:…

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Added by trappy on February 12, 2012 at 8:03am — 4 Comments

Fast-track PID lop setup

Last August I posted a blog "New offer of help with tuning PID loops" putting forward the idea of applying control doublets to a fixed wing aircraft in flight and using the responses to capture stability derivatives and decide autopilot gains. At that time I only had simulation results and was seeking flight test data. I have since got hold of some flightt test data  and analysis confiorms that my processing concept does work.

The first step is to fit a model of the…

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Added by George Tarrant on February 12, 2012 at 5:30am — 8 Comments

ROWLAND F1-535 nears production status

So guys here is what a finished one looks like. The level of stabilization is unbelievable, a key factor is in the torsional rigidity of the motor arms and the weight of the props. Whatever you do electronically I think it will be impossible to replicate this with upright long motors on a long stick. Demo videos will start when the weather improves. Bur after weeks of non stop wind and rain, efforts have been shifted to further dev. work.   …

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Added by Denny Rowland on February 12, 2012 at 2:04am — 14 Comments

BOB4 - new website in english! (Indoor UAV)

I finally translated all the website of my home-made UAV in english.

http://heli.bot.free.fr/index_en.html…



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Added by Leon on February 12, 2012 at 1:30am — 7 Comments

OpenCV aspirations



In the quest for daylight flying, it's our 1st attempt at detecting the position of an aircraft using the SURF implementation in OpenCV. It's a long way from detecting something flying in a room with lots of background detail & even with a noise free background it has a hard time with accuracy. The single 3.7Ghz core does 8fps.…



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Added by Jack Crossfire on February 11, 2012 at 7:24pm — 9 Comments

Testing and Learning; Waypoints and AutoPilot

 

This week I tested the Ardupilot's waypoint and autopilot functionality, and it had mixed results, which I now have identified as total user error. Go figure. :)

 

The waypoint feature performed as good as it could, it struggled a bit as my GPS module only has about a 25% view of the sky, which is clearly not ideal. I'm working now on a better mounting location that will give it 100% view.

 

Why do I think it's the GPS mounting…

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Added by Trent at MyGeekShow on February 11, 2012 at 5:16am — 6 Comments

Interested in assisting Aerosight on a Discovery Channel series?

Good day everyone,

 

Today I was contacted by some producers who do a ton of work making programs for the Discovery Channel. They do the shows like military channel etc.

 

Today we discussed Aerosight's availability to assist in a new show that will follow the UAS operators tracking down lost people in a SAR type of mission. The show will be a series, paid, and in and outside the USA. The involved companies/persons will need their own equipment that is capable of…

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Added by Dave Skala on February 10, 2012 at 8:29pm — 4 Comments

uav-skywalker parachute

Added by jim C. on February 10, 2012 at 5:00pm — 14 Comments

Headlights when motors armed.

I added very bright LED headlights to the quad a while back a) to freak the locals out at night and b) to help with orientation when the quad is far away. These are 12V LEDs and run straight of the 3S lipo. All was well....

One thing I don't like much is the rather small and dim SMD LED to tell me when the motors are armed. Mostly…

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Added by Crispin on February 10, 2012 at 3:30pm — 5 Comments


Developer
APM SketchUp Model

I haven't found a 3D model of APM for download anywhere. So I made it on SketchUp. I used Eagle Up to generate the boards from eagle. It's still missing some parts but the connectors are there, fell free to help complete the board.

 

The models for the MediaTek GPS, and Xbee, are…

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Added by Arthur Benemann on February 9, 2012 at 6:00pm — 19 Comments

<$10 IMU - Game On!

3D Accel and 3D Gyro for as little as $5.42

http://www.mouser.com/stmicrolsm330dl/

DataSheet offers little in the way of gyro stability or…

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Added by bGatti on February 9, 2012 at 2:59pm — 2 Comments

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