----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
Wayne
I dealt ones with a Coupe that was showing 20 miles more than actual.
I tried to land that between 60 and 70. Not easy to do, since I flew
actually between 40 to 50. An astounding sink rate was an indicator that
something was not right.
Trouble is that humans can not feel speed. We are reduced to evaluating
indications of speed.
In an aircraft, it seems impossible to do.
But indicated speeds at stall, landings etc. can be such indicators.
I'd recommend replacing the airspeed meter and see if another one
shows anything different.
Hartmut
----- Original Message -----From: [EMAIL PROTECTED]Sent: Saturday, October 21, 2006 4:05 PMSubject: [COUPERS-TECH] Alon Best Angle of Climb and Stall Speeds----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----Question for the Alon Drivers out there:The POH says that the Best Angle of Climb speed is 50 MPH IAS. This always seemed like a really low speed to me, and the slowest I've ever tried on takeoff is 60MPH IAS, which still seems like a steep, slow climbout. I went out and did some stalls yesterday in my Alon just for the fun of it, and I did several at full throttle (takeoff configuration). At full throttle, my plane stalls at 52MPH IAS. So if I tried to use the book number for Best Angle of Climb, I'd stall on takeoff. Not a good maneuver to do. So now I'm wondering if my ASI is way off, or if the book value is wrong, or if I have a plumbing problem in the pitot/static system.I do remember reading in an Alon pilot report in some magazine from back in the 60's that the demo pilot insisted that they use 50 MPH for best angle of climb, so evidently it's supposed to be possible to do it without stalling.Could some of the other Alon owners go out and see exactly what IAS your planes stall at?I did my stalls at about 3500 feet AGL, cool, calm day - about 50 DEGF OAT, with just me (175 lbs) and about 12 gallons of fuel on board, no baggage. These were done with the throttle firewalled, enough right rudder to keep the ball centered throughout, and slowly increasing the angle of attack until the stall break occurred.I'd sure like to know what other Alons stall at!(OK Don B., there's another excuse to go flying!)Best Regards,
Wayne DelRossi
Alon N5618F
Hours logged since restoration: 183.2============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
