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This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
May 24, 2009, 05:06 AM
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SCP1000 takes command

Time for your first SCP1000 demo in 20mph wind. It's also your chance to see the latest in navigation tuning, fulltime GPS power. U know how most VTOL demos slowly crawl through their waypoints. Well take a look at how fast VikaCopter screams through these missions.

SCP1000 altitude control (4 min 1 sec)

According to our unbiased gyro biased panel of tri rotor judges, this is the optimum barometer placement & the barometer bandwidth should be down to 0.125. With 11" propellers, it's really solid in the calm air. The T-Rex never had enough space to mount a barometer.

Dug up our old waypoint missions from last year & ran through a few. There's no problem with vortex ring state & automatic takeoffs anymore. Automatic landings R probably slightly faster than GPS.

Mind U, we're hard coding collective to get her into the first bit of ground effect, then ramping. It keeps U from dragging on the ground. The barometer is so sensitive, the collective hardly ramps at all before going into altitude seeking mode.

Ublox5 could do just as well, but not consistently & certainly not with today's satellite outages. Sometimes we power cycle it to see if full time power makes any difference, & it does. Had a pretty serious GPS glitch which sent us into a tree.
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May 25, 2009, 12:18 AM
Chris Anderson
That's just crazy impressive, Jack. But it's depressing to think that nobody else will be able to have one of these. Is there no way you can productize it? We'd help!

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