"DT" == Dan Thomas writes:
DT I briefly had the use of a 1967 Aircoupe (the final
DT version of the Ercoupe), and with its 90-hp engine it
DT outperformed the 150 in just about every way. Shorter takeoff,
DT faster climb, faster cruise. Slips were lousy (it had rudder
DT pedals but ineffective rudders) and it wasn't very
DT comfortable, but it used that 90 hp much more efficiently than
DT the 150 uses its 100 horses.

This is very true. I have a '65 Alon Aircoupe, quite similar to the
model you describe. It cruises just 3-5 kts slower than a C172 and
climbout performance is not bad at all on a cool day with just the
pilot.
--
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Anon