So happy to find you folks! I've been working on this
project for 6 months, after a successful "regular" balloon launch.
Any comments much appreciated...
My half-ideas are as follows:
In the parameter file, set "Throt_Max" to 0. The RC has
to glide home due to power constraints, until it is visible
to the pilot, who will then switch it to manual and land it.
I don't know how the condition commands work yet, but
I think there is one related to altitude.
I think you always need a waypoint command to start.
(I'll have another system onboard which will trigger a release
mechanism upon reaching altitude, to free the RC glider
from the balloon).
So, given wind calculations, and ascent rate of balloon,
my first few commands would look like:
1. Condition altitude = 35,000 ft --> Do skip to 3
2. Waypoint (lat/long at projected release location, altitude 40k ft)
(so on the way up Ardu is adjusting flight surfaces wildly,
trying to orient itself towards this point -- not good!)
3. Waypoint (lat / long at first point along optimal return trajectory),
(altitude 30,000 ft -- so it begins its descent)
Is this the best I can do, without getting into Arduino programming,
or other hardware?
And please advise how the condition commands work.
--Lt Prahas David Nafissian,
Aerospace Education Officer,
Civil Air Patrol