|Jul 20, 2013, 08:24 AM|
Today I finally took some time to test HK Alti logger (actually it is Altitude permit logger) in role of ordinary alti logger.
And what a day! I manage to use thermals and soar my Marabu so high, that I starts to feel uncomfortable (bad visibility..moisted air) so I drop flaps and sprial nose down to "safer" height. Of course I was trying to thermal on that low height and was going up. As dinner was served on the table, and I was also impatient to see what will show the Alti logger on the computer, I landed.
This is the log:
Legend: red line=power on, yellow line=motor off, green line=temperature
Before a peak height, I have 2 thermals with average 1,6 m/s climbing.
Not bad for a "box" as Marabu is!
|Oct 12, 2013, 04:14 AM|
I build 2 axis brushless gimbal (HobbyKing Martinez clone electronic) and install it on the Marabu wing at wing strut joint. It needs some tinkering, but even now I am pleased with a result.
|Oct 14, 2013, 06:41 AM|
Beautiful, I am not a quad pilot, but I assume that you had to use a flight controller with pitch and roll outputs.
|Oct 17, 2013, 01:45 AM|
Gimbal is stabilized by Martinez controll board, that drive two brushless motors acutating camera pod.
The sensor board has option for attaching it into 3 slots, that allows camera to aim horizontal, 25° and 50°below horizont, without need of extra free channel on TX.
Here is a video, that show all three camera views and another, aiming away from the fuselage side along the semispan:
And this is a camera view towards the model:
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