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Jim Ivey on the list had mentioned his rental airplane and I was a little
surprised at the performance he mentioned, 140KTAS normal cruise.

I just saw this info on Trade-A-Planes website. How could the 1980 version
be 100 # heavier, with the same horsepower and gain 18 knots in cruise
compared to the 1985 version? It just doesnt compute, to gain 18kts in
cruise would require either an enormous clean up, otherwise known as the
Cardinal RG that does 148 knots with 200 HP or an 100HP bigger engine. What
changed to make the lighter, later built airplane so much slower? Could it
be the GAMA POH guidelines?

CESSNA 172Q CUTLASS 85
Engine: LYC O-360-A4N 75% Cruise: 122 kts Wingspan: 36.00 ft
Horsepower: 180 Stall: 48 kts Length: 26.92 ft
Recmd TBO: 2000 hrs Range: 475 nm Height: 8.33 ft
Srv Ceiling: 17000 ft Empty Wt: 1476 lbs
Std Fuel: 54 gal Gross Wt: 2558 lbs
Max Fuel: 68 gal
Takeoff (over 50 ft obstacle): 1690 ft
Landing (over 50 ft obstacle): 1335 ft
Takeoff: 960 ft
Landing: 575 ft


CESSNA 172RG CUTLASS RG 80
Engine: LYC O-360-F1A6 75% Cruise: 140 kts Wingspan: 36.00 ft
Horsepower: 180 Stall: 50 kts Length: 27.42 ft
Recmd TBO: 2000 hrs Range: 720 nm Height: 8.75 ft
Srv Ceiling: 16800 ft Empty Wt: 1590 lbs
Gross Wt: 2650 lbs
Max Fuel: 66 gal
Takeoff (over 50 ft obstacle): 1775 ft
Landing (over 50 ft obstacle): 1355 ft
Takeoff: 1060 ft
Landing: 635 ft

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