" The ASI showed 64 MPH" - when I stalled
Now that is totally wrong. Check your tubing. Something is really amiss here. I stall my bird at below the 40 ties. Rather in the thirties with empty tanks and power on. A small crack in the tubing to the ASI can do much here and show these fales values. Hartmut To: [email protected] From: [email protected] Date: Fri, 14 Aug 2009 21:30:37 +0000 Subject: [ercoupe-tech] Re: Indicated Stall Speed It's pretty much as Mike says. I did power on stalls and power off stalls on Thursday afternoon. Just me and full tanks, so probably around 1250# at 3500'. The power off stall basically consisted of the airplane settling into a "mush" of about -200 FPM VVI, with full aft yoke, and then if you held it there, it would eventually have a very gentle straight-ahead break that flew itself out. The ASI showed 64 MPH. Power on was about the same, except for the right wing dropping when it broke, but still pretty gentle. Once again, it indicated 64 MPH when stall occurred. I spoke to Mike, and this was consistent with what he saw. He said that if you get below 70 MPH indicated at a high AOA/pitch attitude, you are definitely approaching stall. But he also said that 70 MPH indicated in a descent or low AOA would not be close to stall. His belief that the airspeed reads high at high angles of attack due to the way the airflow hits the pitot tube makes sense but I will still check out the airpseed readings on a calm morning using the GPS and "boxing the compass" at around 70 MPH when I get home from my UPS trip in a couple weeks. Thanks, Dave --- In [email protected], si...@... wrote: > > N3041H is a D model in E configuration. It has a split elevator with the 20 > deg up and 10 deg down rigging. The pitot was set at 3 7/8". on straight > and level the airspeed appeared to be within 5 kts accurate but in a high > incident stall climb the indicated speed appeared to be high. > > Mike Sigman > Prior owner. > _________________________________________________________________ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCB&publ=WLHMTAG&crea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1
