About Me:

Programmer with >30yrs C and some more recent Java. Long term interest in electronics and RC.

Please tell us a bit about your UAV interest

Just getting into planes now for photogrammetry with an original interest in precision farming, we have recently attracted the interest of a construction group while flying over their new road.



Activity Feed

John Major replied to Brian Christal's discussion PixHawk Altitude Issues
"Just checked mission plans etc in text mode and grabbed the mission out of the pixhawk using apmplanner (which is quite clear about abs vs rel in the 'on board' waypoints section)
Text files show reasonable home heights around 704 meters.
Nov 21, 2015
John Major replied to Brian Christal's discussion PixHawk Altitude Issues
"I've just run into this today. Still chasing through logs to see what happened. My initial feeling is that there is an abs/rel conversion going on behind the scenes that has a bug (or I'm misusing it). I suspect that I may have created the mission…"
Nov 21, 2015
John Major replied to David Tipping's discussion Flight planning in difficult terrain in IRIS
"I have been planning some missions recently where the launch point was about 200m above the lowest ground point.
Mission planner seems to have some issues around this situation. When using the terrain data ("verify height" checked) and planning a…"
May 6, 2015
John Major commented on Andrew Tridgell's blog post Terrain following added to APM:Plane
"If I read this right, I (or autoWP) can set waypoints down low on either side of a hill and arduplane _should_ miss the hill. Is that correct? If so, how do you specify by how much to miss the top of the hill (for trees / errors)?"
Mar 5, 2015