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#11
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You guys are giving bad advice. I fly a Glastar with an O-320 E2A in
it. I have flown dozens of hours at density altitudes above 15000 ft. And that is with the plane loaded to GW. With the plane loaded lightly I have had it above 21000 density altitude (which was right at 18000 ft MSL) using autogas, just to see how high I could go. I have flown across the Rockies half a dozen times at VFR altitudes of 13500, 14500 and 15500, depending on which way I'm going. Those flights were at density altitudes typically 2000 to 3000 higher than the MSL altitudes. The Slick mags never misfired even at 21000 ft, but the plane was at it's service ceiling of 100 fpm there and I'm sure any misfiring would have resulted in a descent. I enjoy high altitude XC flights using O2 and a pulse oximeter, the air is smooth, cool and the plane runs great. Don't blame your engine for limits imposed by your airframes. Justaguy |
#12
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#13
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"Jerry Springer" wrote in message ... wrote: You guys are giving bad advice. I fly a Glastar with an O-320 E2A in it. I have flown dozens of hours at density altitudes above 15000 ft. And that is with the plane loaded to GW. I agree, I have flown my RV-6 at 15000 ft several times when I had a O-320 E2D on it and it was still climbing with no problem. I used to fly across the mtns. in my Tripacer at altitudes of 14,500. John Ammeter something does not sound right that you could not get your RV-6 above 13,500. Jerry Someone with 150 hp and a cruise prop might not be able to generate a whole lot of rpm and therefore power at that altitude. It goes back to the compromises you make with a fixed pitch prop. Also, it depends on how heavily loaded the RV-6 was. I list my 160 hp, fixed pitch RV-6's gross weight at 1675 lb, and the climb and altitude performance really suffer with the last 50 lbs or so. KB |
#14
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It might have been the payload.... I know we were at or slightly over
gross... The stick had a very light "feel" to it, like we were close to the stall.. John Jerry Springer wrote: wrote: You guys are giving bad advice. I fly a Glastar with an O-320 E2A in it. I have flown dozens of hours at density altitudes above 15000 ft. And that is with the plane loaded to GW. I agree, I have flown my RV-6 at 15000 ft several times when I had a O-320 E2D on it and it was still climbing with no problem. I used to fly across the mtns. in my Tripacer at altitudes of 14,500. John Ammeter something does not sound right that you could not get your RV-6 above 13,500. Jerry |
#15
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that sounds like my situation...
John Kyle Boatright wrote: Someone with 150 hp and a cruise prop might not be able to generate a whole lot of rpm and therefore power at that altitude. It goes back to the compromises you make with a fixed pitch prop. Also, it depends on how heavily loaded the RV-6 was. I list my 160 hp, fixed pitch RV-6's gross weight at 1675 lb, and the climb and altitude performance really suffer with the last 50 lbs or so. KB |
#16
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Plane is telling you to skip desert!
"John Ammeter" wrote in message ... that sounds like my situation... John Kyle Boatright wrote: Someone with 150 hp and a cruise prop might not be able to generate a whole lot of rpm and therefore power at that altitude. It goes back to the compromises you make with a fixed pitch prop. Also, it depends on how heavily loaded the RV-6 was. I list my 160 hp, fixed pitch RV-6's gross weight at 1675 lb, and the climb and altitude performance really suffer with the last 50 lbs or so. KB |
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