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Bob, I should know those numbers your asking about, but I dont' ( haven't been flying long enough to quote those figures without going to check first) . If you look at the performance data for the Alon A-2 on Trade-A-Plane at the link below: http://www.trade-a-plane.com/protected/cgi-bin/perfdb.pl?make=ERCOUPE&mode l=ALON+A-2&showspecs.x=Continue ERCOUPE ALON A-2 Engine: CONT C-90-16F 75% Cruise: 107 kts Wingspan: 30.00 ft Horsepower: 90 Stall: 49 kts Length: 20.17 ft Rec'md TBO: 1800 hrs Range: 410 nm Height: 5.96 ft Srv Ceiling: 17300 ft Empty Wt: 930 lbs Rate of Climb: 640 ft/min Gross Wt: 1450 lbs Max Fuel: 24 gal Takeoff (over 50 ft obstacle): 2100 ft Landing (over 50 ft obstacle): 1750 ft Takeoff: 540 ft Landing: 650 ft It indicates that Take-off over a 50' obstacle will take 2100', and I'd guess that is factory numbers under best conditons ( hard surface) So having 60' trees at 2150' would appear to be cutting it very close. And although I have not flown off grass, couldn't that slow you down and increase the take-off roll? Regards, --Mitch Mitch Hines Alon A-2 Aircoupe N6369V Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible. - Simon Newcomb, 1902 ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, April 14, 2003 11:51 AM Subject: [COUPERS-FLYIN] Re: Digest list: Ercoupe Hangar Flying > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > > Need some input from anyone that ownes a Alon A2. I purchased this aircraft last fall and have not been able to fly it again til yesterday due to operating out of a grass strip that has not been suitable until now due to the weather. I did mke about 5 take off's and landings out of this airstrip in the fall prior to the bad weather. > My problem is this: > I took off yesterday into a 8 - 10 MPH quartering head wind on a near level 2000' grass runway (grass about 3-4" high) with 60' trees 50 yrds off the end off the runway. It took me over 1000' to get 65 MPH and in the air and I had to turn to the left to avoid the tree tops ( needless to say it scared the hell out of me). > > This plane is a 1996 A2 w/ C90-16F Contnetal engine w/ a McCauley 11390/CM7150 prop Rated at Static RPM 2175 -2275 Max Engine 2475 RPM - Aircraft TT 2898 TTSMO 1085 > At time of take off I was indicating 2150 RPM - The Temp 60 deg - Field Elv 715' Barm.Preasure 30.2 > LOADING :Full fuel and me @ 250 lbs > According to the manual I should not need more then 5 -600 feet for takeoff. > I have flown this aircraft off a paved runway with the pervious owner at gross weight prior to purchase in 90 deg summer heat and it performed better then this. > > If I would have had any additional weight on board I do not think I would have gotten out. In fact in retrospect I should have aborted the takeoff. > > My question is, is this the type performace I should expect or do I have a problem. Like needing a longer runway or worse a new engine. ( Don't say loose some weight off your lard ass, I already thought of that) > I thought I should be seeing close to red line at full thottle 9on take off roll like I did in my 182. The 182 required a power reduction as soon as you established a climb to avoid going past the redline. The Alon will not even get near the redline. > > Is it possible to be showing listed 2175 static RPM at full throttle and not developing full rated horsepower > > Any constructive comments would be apreciated. > Bob Bullock > Alon A2 > N5621F > Maryland > ========================================================================== == == > To leave this forum go to: http://ercoupers.com/lists.htm > Search the archives on http://escribe.com/aviation/coupers/ > ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/
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