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Test Pilot Mafia's blog
Posted by Test Pilot Mafia | Oct 31, 2014 @ 03:01 PM | 2,366 Views
Ive been keeping my thoughts on aerial safety somewhat secret for some years, mostly for two reasons. First, I presumed before my thoughts would matter much, others would have done a much better job and formally codified all this long ago, yet this still has not happened as of the near end of 2014. Second, Ive seen a shocking rise in published videos of outrageous and even criminally reckless operation of drones, which will destroy our sport, hobby and businesses in this new frontier technology.

I can be silent no longer.

In particular, cases of idiot pilots flying over drunken idiot crowds using a drone to carry a Champagne bottle, really disturbs me. Several drones have been downed by an idiot hurling a beer bottle at stadiums already. These drones could be coming down into innocent crowds as if it were the Russian front or the battle of Britain.

So, ive summarized basic principles, i think cover the conditions needed for safe flight

Quote:
Dicta Boelcke for the Safe Flying of Drones.
(In order of significance and priority)


Zeroth :
In all matters related to machine operation, the pilot is responsible for everything that does and does not happen, from power on to power off. The ability to identify the legally responsible operator of the drone(s) should reside within each drone's physical body.

First :
Human life, limb and private property are not to be placed at risk by the operation of a drone. This is the highest priority.

Second :
...Continue Reading
Posted by Test Pilot Mafia | Oct 30, 2014 @ 11:19 AM | 1,703 Views
As ive been studying aerodynamic fluid flow in FEM programs, ive decided to make an alternative to the round, square and flat horizontal arms I typically see.

Seen below are the closest to airfoil shapes I could reasonably get to test this idea. ive slotted them for internal wire, as it doesnt make sense to air-trip, and add turbulent airflow, (with 3 bundled wires) if your going to the trouble of fabbing airfoil shapes in the first place.

Stay tuned ! More fabrication to come shortly !



Please follow and subscribe here if you find my work useful

http://www.rcgroups.com/forums/member.php?u=437848
Posted by Test Pilot Mafia | Jul 30, 2014 @ 04:47 PM | 2,075 Views
This is my KickStarter, https://www.kickstarter.com/projects...obotic-systems

Im trying to reduce collision probability for indoor and outdoor flight. Previous lidars were too heavy and cost to much. Ive engineered this version to be more compatible with embedded systems.
Posted by Test Pilot Mafia | Jul 24, 2014 @ 04:36 PM | 2,000 Views
1jy-8dek-esz2

this is my reciept number i guess, ill be looking at other action to take against the FAA as well.

the interpretation was just so poorly written and non-nonsensical, probly making things less safe, and more convoluted.



Quote:
To Whom It May Concern,

The FAA is in danger of losing credibility and effectiveness, by over regulation, denying FPV capability and a general hostile attitude towards a large section of the American flying population that only grows. Worse, ( and I do not advocate for this ) many young people may choose to fly out of resentfulness and spitefulness, at which time the culture of disrespect for the FAA will become popularized, making your own task impossible.

So far the FAA has been more the problem, than the solution in this fast growing field of aviation. This poorly conceived interpretation is the proof.

I will remind the FAA that they are bound by the US Constitution and to serve the American people, not themselves.

Above all else we must establish simple and well working "rules-of-the-road" for the sky, known to all, and resistant to human factor errors. I greatly fear this task of safety may be beyond your ability.

Sincerely,
Patrick W. Coleman
EE and Roboticist Student

Posted by Test Pilot Mafia | May 18, 2014 @ 03:56 PM | 16,501 Views
MultiWii 2.3, PID tuning w/bluetooth module.
http://www.rcgroups.com/forums/showthread.php?t=2168623

im trying to get my MultiiWii pro board using the bluetooth module and android app.

I'm trying to get this to work, but it's all a blur at the moment... the app is really cool looking from my galaxy tablet, and it should be less tedious then using a laptop and constant plug and unpluging of a micro USB cord.


http://www.rcgroups.com/forums/showt...428641&page=96

http://www.rcgroups.com/forums/showt...428641&page=88

Ive gotten real time in-flight data from excess "P" value oscillation, which allows better tuning of the whole PID process. ill post these details in a few days. i use the Bluetooth module and the tablet app which allows data returned from the acc, gyro and other onboard features. (in the picture, you can see i plugged it in wrong.)
Posted by Test Pilot Mafia | May 16, 2014 @ 02:26 PM | 2,580 Views
I keep forgetting how I tune my PIDs for each new tricopter I build. So, I'm putting my specifics here.

This is a work in progress so please bear with me for a few days.


Links :
Flight mode list: http://www.multiwii.com/wiki/index.p...le=Flightmodes
Explanation of PID effects: http://www.multiwii.com/wiki/index.php?title=PID
Forum link on level mode: http://www.rcgroups.com/forums/showt...e#post25952736


File Edits ( Arduino ):
to come shortly.


PID Tuning Sequence:
(For MW ver 2.3 - May, 2014 )

First, deactivate Angle and Horizon mode, (to enter Acro mode).
Second, tune "P", then "D" , then "I", then maybe go back and re-up "P" again.
Next, tune with "Horizon" mode activated.
finnally, enable "Level" mode and adjust those PIDs.

NOTE: The roll and pitch are linked, so choose P values for both, then both D values then both I's. then do yaw by itself.
Posted by Test Pilot Mafia | Apr 18, 2014 @ 08:36 PM | 2,661 Views
pics!

uniform roughness for boundary layer control. CF is 5.7 oz/sq/yd AS4.
about 0.010 thick, but the weave is the roughness. so it is uniformly created by the 2x2 twill. which has a +.005 and a -.005 total deviation from mean/average... these long airfoil supports Cyberdactyl, were my attempt to keep the TCE from being garbage

so it would appear you and i are attempting to replicate the form and function (though differently in means) of the vortex generators, like on the tail planes of the B-52...

Cyberdactyl's article... http://flitetest.com/articles/the-cyber-hex