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Crash analysis: plane pitches down in FBWA

Started this discussion. Last reply by Martin Oct 6, 2013. 1 Reply

I had another crash today. I started the flight in manual mode and switched to FBWA when I had gained some altitude. The plane felt really sluggish. Turn radius was very large and the plane kept…Continue

Tags: analysis, crash

An alternative to 3DR radios?

Started this discussion. Last reply by Henri Mar 30, 2014. 49 Replies

HiI was just looking around for 868 MHz 500mW radios when I stumbled upon this radio -->…Continue

Rudder servo offset in FBWA

Started this discussion. Last reply by Søren Kuula Aug 31, 2013. 2 Replies

I have an APM 2.5 running Arduplane 2.74b. I have the autopilot mounted upside down. I have already changed the relevant setting and re-leveled the plane.So, my problem is that when I switch to FBWA…Continue

Yaw pids greyed out in MP 1.2.73

Started this discussion. Last reply by Martin Sep 2, 2013. 4 Replies

HiI'm running MP 1.2.73 and for some reason the yaw pid settings are greyed out. I've erased and reset the eeprom, but yaw pid settings are still greyed out in MP. I'm wondering if this is a bug in…Continue


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Comment Wall (1 comment)

At 12:04am on June 10, 2015, Gisela & Joe Noci said…

Hello Martin,

Martin, no, we have not done large areas with our SurVoyeur system. It tends to become impractical depending on the required GSD. For example, with a 22mpixel camera, APSC format sensor, 22mm lens, you would achieve around only 10cm GSD at 300m. AGL. 10cm would result in around 15cm ( at best) processed GSD. At this GSD you would fly 3 to 4 legs per km width of area, giving say 40 legs in a 10km wide area. If 10kmx10km, the the legs are 10km long, so that is around 400km to typical speeds of 15ms for best time in the air, ( around 54km/h), that's 7.5hours of flight. Many batteries, moving to a new launch point to start the next sequence of legs, etc....

In addition, sunlighting of the area changes considerably in that time, and shadows change etc, not great.

For areas like that we use a Piloted fixed wing plane ( Jabiru..) fitted with a 36Mpixel camera and we have developed flight software that displays the flight plan and paths on a Tablet, and then provides the Pilot flight ques to direct him onto track, height and speed, both visually and audibly..



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