Revamping my Rocket: Questions
Rocket guys: I have a considerable difference between my old ASI and the "tape" airspeed in my new AF5600. I've flown several NTPS TAS multi-heading tests using GPS and have established (I think) that my AF5600 is reading about 10 knots high based on calculated GPS derived TAS versus the TAS displayed by the 5600 (my old ASI which I still have, is even further off---long story). Anyway, I adjusted the airspeed indication on the AF5600 calibration page down by 10 knots. Now of course, it seems too low.
1. Can anyone tell me about the 54 knot "stall speed" in the specifications of the sport wing Rocket? In further testing, I did several stalls today and was seeing 47-48 knots indicated on the tape and around 60 on the old ASI when it broke with very little difference (except deck angle) between power on, power off, and flaps up or down. Into the bargain, with these settings I am way down (as expected) on the indication at the top end. I always thought my Rocket was pretty fast, but apparently not! On a follow-on full power test, I was only seeing 195 kias or so on the AF5600 at 200' and WOT (75 degree day). I was seeing around 210 on the old ASI at the same time. If 54 knots for the stall is actually about right, it seems to me I can add around 5-6 knots back into the 5600 tape display. That won't jive with the GPS derived TAS speeds though, but I can't believe the airplane is not stalling until a real world 47-48 knots with one 200 pounder and near full fuel on board. I know airspeeds vary a bit (sometimes fairly significantly) across the range of speeds a typical airplane is capable of, but this seems like a bit more than I expected. Regardless, accuracy at the bottom end of the scale is more important to me that at the top, so...
2. My TruTrak Gemini autopilot settings have gotten all gooned up trying to follow the guidance in the 5600 manual. Is anyone flying the Sport-Rocket/Gemini combo who could share their settings with me?
Thanks very much!
Ridgeland, SC (3J1)
F1 Rocket #160 flying