Amen ED. The airspeed meters are correct to the numbers only for a few years. I'm just replacing my second one in 9 years. The first one was correct, but got stuck at around 60-70 Miles from time to time. Really not useful while landing. The second one was brand new 5 years ago and is now showing 10-20 MPH while standing still on the ground. Needs to Zero. The list can go on. In any case. The numbers you see on your dial are not necessary the numbers that you are actually flying. One way to make sure you are flying not behind the power curve is to always fly and land fast. If you think that is good airmanship. Ok. I am not out to judge. The other way would be to have the airspeed meter checked if in doubt. And test every airplane you fly for the actually shown stall speed yourself and calculate the approach speed from there. Hartmut
To: [email protected]: [email protected]: Sat, 17 Jan 2009 21:40:06 -0600Subject: RE: [ercoupe-tech] coupe landing Airslot4518 wrote:> Down final I never fly less than 80 indicated.And Bart wrote:> Just establish a STABILIZED SPEED on final, usually about 65-70 > mph, then bring the power to idle and flare,Too many Coupes have inaccurate airspeed indicators to give people advicebased on a numerical airspeed number.When I first bought my Coupe, I used the best published numbers forairspeeds in the pattern. On the second flight, the gas line iced up and Iglided to my landing in a plowed field. THEN PUBLISHED NUMBERS WERE WRONGFOR MY PLANE because the airspeed indicator was old and worn and gavenumbers 10-15 mph higher than my true "indicated airspeed" should have been.When I got to the flare and pulled back there was no "back" to pull to - Iwas already AT minimum flying speed at 70 mph indicated. With a new, calibrated ASI, that plane had a 55 mph minimum flying speed and70 mph on final did give me a decent glide and lots of energy to flare.Even 65 mph was an OK approach speed in calm conditions.All the numbers I gave in my landing "essay" were in relation to a "minimumflying speed" determined by getting THAT airplane up high, pulling the powerto idle and finding out how slow it goes according to THAT airplane'sairspeed indicator. Then multiply that number times 1.3 or 1.4 or 1.5 toget the cushion numbers you want. This is an approximation, but it's waybetter than just saying an airspeed number.Both of you, Airslot and Bart are citing _right_ numbers for your plane andapproach and see how different they are!Airslot's commented that the Coupe has a high sink rate and, judging fromcontext, I think he meant a high sink rate at 80 mph indicated on final. Ata true 80 indicated a Coupe should have a fairly decent glide ratio - not tocompare it to a long-wing Cessna but decent. When was your ASI lastcalibrated, Airslot?We should all calibrate our airspeed indicators from time to time. Mine wassure way off.http://www.csgnetwork.com/tasgpscalc.html True airspeed calculatorI'll go with Bart's "stabilized speed." I'll agree that, for Airslot, 80 onfinal is right for his plane. But, when giving general advice, we've got tobe careful about numbers.Ed _________________________________________________________________ Windows Live™ Hotmail®: Chat. Store. Share. Do more with mail. http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_hm_justgotbetter_explore_012009
