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About Me:

Retired aircraft and yacht designer, decided its time to design and build some toys for me instead of others.


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Richard commented on crystal garris's blog post How to pull a 50g turn at 300mph and not lose speed
"Have you thought of coupling the DS airframe with some variation on the current UAV autopilots so that it flies perfect elipses on the slope....something like a small 6 waypoint track. Would probably require DGPS so it would be accurate enough to…"
Jun 18, 2008
Richard commented on Richard's blog post UAV Snipers
"With the gun mounted along the flight axis, I doubt that stability is much of an issue, but like the A-10 conserving speed will be a big issue for a lightweight airframe."
Jun 17, 2008
Richard posted a blog post
Saw a post to this on John Robbs blog that is now funded by DARPA. The white paper pdf that Sagetech published on this can be found here.
Jun 17, 2008
Richard commented on crystal garris's blog post How to pull a 50g turn at 300mph and not lose speed
"Ive added a slightly modified section that traded 4-5 drag counts at High CL for a loss of 13-14 drag counts at low CL's.
If you look at the difference between the RG-15 and the new AQ, for the same alpha that the RG gets a CL of 0.800, the new AQ…"
Jun 16, 2008
Richard commented on crystal garris's blog post How to pull a 50g turn at 300mph and not lose speed
"This is a hacked around FX section. The original wasn't a very good section and really required to be cleaned up. The original RG-15 at the design CL of 0.80 had 88 drag counts, The FX was at about 70 drag counts in the same condition and I got the…"
Jun 16, 2008
Richard commented on crystal garris's blog post How to pull a 50g turn at 300mph and not lose speed
"this might be a bit better, comparison against the RG-15 section found in the UICC database scaled to 7%, couldn't find the FX section you mentioned, would be nice if you posted it here so I could play with it. Have attached the dat file for the…"
Jun 16, 2008