[Canberrauav] Recap of this weekend
Stephen Dade stephen_dade at hotmail.com 
Sun Jul 1 18:07:12 EST 2012 

Hi All

On Saturday Jack, Tridge, Matt and myself worked on upgrading the CyberMugin
to APM2, in addition to installing the new camera mount (the camera is now
able to roll-correct).

We also fitted v1 of the failsafe module
(http://www.pololu.com/catalog/product/721). This module is able to switch
the control surface input between the APM and RC controller (since the APM2
doesn't have a hardware failsafe). We discovered that this doesn't seem to
work if the APM loses power. This will be looked into for v2 of the
failsafe.

On Sunday, we flew the new-and-improved CyberMugin. First off, we went
through a thorough checklist to ensure we hadn't missed anything from the
APM upgrade. The first flight was short and simple, with Tridge tuning the
APM parameters for a smooth auto flight. This proved to be surprisingly easy
(I think Tridge had pre-loaded some example parameters for large aircraft).

Our second flight was very successful. We clocked over 30 minutes of
automated flight towards our D3. The CyberMugin was exceptionally responsive
when turning to a new waypoint, with no rollercoastering of altitude/heading
between waypoints.

Unfortunately, the CyberMugin had a rough landing at the end of both
flights, collapsing the nose gear (quickly fixed though) both times. The
first time, the CyberMugin touched down too late and didn't have enough
runway to stop on. The second time the engine cut out during the landing
approach (most likely due to not-quite-correct engine tuning) and  Jack had
to glide the CyberMugin down to the runway.

Due to this, Jack will be looking at constructing a stronger nose gear. In
addition the nose cone is now very battered - we should be able to easily
construct some spares though.

The 900 MHz radio cut out during both flights too. This was due to the
antenna connectors vibrating loose during flight. This has now been
rectified via sticky tape.

I've created a small video of today's flights at:
http://www.facebook.com/video/video.php?v=569164868925 (you shouldn't need a
Facebook account to access it). I'll make a Youtube version later tonight.

-Stephen

[Canberrauav] Recap of this weekend
Andrew Tridgell tridge at samba.org 
Mon Jul 2 07:26:51 EST 2012 

Thanks for the summary Stephen!

I've put some logs up here:

  http://uav.tridgell.net/Mugin/2012-07-01/flight2/

and a screen shot showing the waypoints overlaid on the auto flight path
here:

  http://uav.tridgell.net/Mugin/2012-07-01/flight2/mugin-auto-70m.png

it shows that the tuning is now very good, and we can follow waypoints
very accurately, even with the high wind.

Cheers, Tridge

[Canberrauav] Recap of this weekend
Stephen Dade stephen_dade at hotmail.com 
Mon Jul 2 22:27:26 EST 2012 

Also - here's the YouTube link to the video of Sunday's flying:

http://youtu.be/9_WTa6y-P74


-Stephen

-----Original Message-----
From: Andrew Tridgell [mailto:tridge at samba.org] 
Sent: Monday, 2 July 2012 7:27 AM
To: Stephen Dade; canberrauav at canberrauav.com
Subject: Re: [Canberrauav] Recap of this weekend

Thanks for the summary Stephen!

I've put some logs up here:

  http://uav.tridgell.net/Mugin/2012-07-01/flight2/

and a screen shot showing the waypoints overlaid on the auto flight path
here:

  http://uav.tridgell.net/Mugin/2012-07-01/flight2/mugin-auto-70m.png

it shows that the tuning is now very good, and we can follow waypoints very
accurately, even with the high wind.

Cheers, Tridge

Copyright 2012 http://canberrauav.org.au/