RE: Graupner Showflyer
I have not been able to get this plane to harrier.....can't get rid of the wing rocking !
if you balance it very tail-heavy it will do a very slow fly-by with the nose pitched up at about a 30 degree angle but that is not a harrier !!
it seems to do every other 3d maneuver pretty well.....it will hover all day long provided there is no wind ( if there is a wind, the plane will blow the plane away from you eventually)
doesn't seem to torque-roll, just hangs in the air, sometimes it twists a little clockwise and sometimes it twists counterclockwise.
inverted climbing flat-spin is probably what it does easiest/best. upright flat spin is a bit harder to get it to do but is possible.
the plane can be set up to fly very slow and predictably with low rates.