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Darwin. Congrats to the Coupe. I did similar tests like you did a few years ago with my then just acquired Coupe. Here an addition to the stall test. The Coupe stalls at around 38 MPH in standard conditions and full load. As freezing as it is now up there the conditions improve (air thicker) That improves engine performance and prop performance as well. Engine gets more O2 to burn, prop has more to grip on and the added drag, thicker air gives to the airframe is neatly compensated by the fact that it can stay better afloat in thick air. All that changes drastically when you try to show a friend how stall proof your Aircraft is on a nice sunny summer day - whoop down it goes in a sudden stall - at least mine did that, but I've got the split elevator... However , I am reading similar values with my C-85 . By the way . The Ercoupe Information Letter No 3 lists various engine speeds and the cruise performance in combination with Fuel consumption for the C-85. The RPM listed goes down to 1825 RPM , assuming 50% performance?. Airspeed reading then 75 MPH.... If you don't own the Ercoupe Memoranda and Service Bulletins yet, go get them either from Skyport, Ebay, Univair, Aircraft Spruce (in order of favorablity). Plus the Service Manual. While it is good to ask a question on this forum here, having a book with drawings when sitting under the airplane can't beat anything. Good Flights. Hartmut N3330H Darwin Girdauckis wrote: > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > Hi All! > I was out playing around in the practice area yesterday & tried a > few things. I was at full fuel with just myself > on board so I pulled the throttle back & pulled the yoke back all the > way. I got about 1000 ft/min drop in the mush > mode , no suprise here! Then I slowly powered up till I got zero drop > (still full yoke back) this occured at 1850rpm > & still with an airspeed registering below 40 mph (as low as my > indicator goes). I then took it to full power, the > plane began to climb at about 50 ft/min, still at below 40 mph. I didn't > do this very long but it amazed me that it > would not only stay in the air but climb at this low airspeed. The > engine never started to heat up but the OAT > was around -5c @5500ft (cool) She's a 415c with an 85hp, climb > prop.Anyone else get diffrent numbers? > > I am also noticing that with these cooler days that I am > getting more speed at cruise. During the summer > I was getting around 100 mph @ 2450rpm, now I get about 110 mph.GPS is > up as well so I am going > faster,(not just reading faster). > > I now have about 40 hrs in this coupe since august & I have to > tell you guys(& gals), this is the perfect > plane for me. It has the range I need to travel to the spots I need to > go to, is quick & easy to prefight, > is fast enough, extremely cheap to operate, easy to start, very easy to > fly........ I could go on! > > These email groups were instrumental in helping me decide to buy > into this coupe & I would just > like to say thankyou all for the help & guidance as we got it back > together & worked out the small > bugs that come with rebuilding any plane this old. > > Avemco was the only insurance company that would insure me > & my 2 partners when we tried to > get quotes. Now they are no longer providing aircraft insurance in > Canada. So we have untill July > to get a pile of hours so that one of the other brokers might take us > on. Does anyone have any > idea why they have done this? > > Darwin > > ========================================================================== ==== > To leave this forum go to: http://ercoupers.com/lists.htm ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm
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