1978 Piper II-N521KB

Gemini Sparkle

Key Takeaways:

  • The article details the specifications for a 1978 Piper II-N521KB aircraft, with a used price of $128,000.
  • It is powered by a 220 HP Continental L/TSIO-360-KB engine, offering a 6-seat capacity and a useful load of 3116 lbs.
  • The aircraft achieves cruise speeds between 180 and 194 knots and has a maximum range of 780 to 880 nautical miles.
  • Key performance figures include a 29,500 ft service ceiling, a best rate of climb of 1340 fpm at sea level, and a takeoff ground roll of 900 ft.
See a mistake? Contact us.

piper
Used price: $128,000
Engine make/model: Continental L/TSIO-360-KB*
Horsepower@rpm@altitude: 220@2800@SL to 19,000 ft.
Horsepower for takeoff: 220
TBO hrs.: 1800*
Fuel type: 100/100LL
Propeller type/diameter: CS two-blade
Landing gear type: Tri/Retr.
Max ramp weight (lbs.): 4750*
Gross weight (lbs.): 4750*
Max landing weight (lbs.): 4513
Empty weight, as tested (lbs.): 3116
Useful load, as tested (lbs.): 3116
Payload, full std. fuel (lbs.): 898
Usable fuel, std. (gals.): 123
Oil capacity (qts.): 8
Wingspan: 38 ft. 11 in.
Overall length: 28 ft. 7 in.
Height: 9 ft. 11 in.
Wing area (sq. ft.): 208
Wing loading (lbs./sq. ft.): 22.8
Power loading (lbs./hp.): 10.8
Wheel base (ft.): 7
Wheel track: 11 ft. 9 in.
Wheel size (in.): 6.00 x 6
Seating capacity: 6
Cabin doors: 2
Cabin width (in.): 49
Cabin height (in.): 42
Baggage capacity (lbs.): 200
PERFORMANCE
Cruise speed (kts.):
75% power @ 17,000 ft.: 194
65% power @ 18,000 ft.: 191
55% power @ 21,000 ft.: 180
Max range (w/ reserve) (nm):
75% power: 780
65% power: 840
55% power: 880
Fuel consumption (gph):
75% power: 29
65% power: 26
55% power: 23
Estimated endurance (65%) (hrs): 4.0
Vs (kts.): 67
Vso (kts.): 61
Best rate of climb (SL fpm): 1340
Best rate of climb, 8,000 ft. (fpm): 1100
Single-engine rate of climb, SL (fpm): 240
Service ceiling (ft.): 29,500
Single-engine service ceiling (ft.): 13,400
Takeoff ground roll (ft.): 900
Takeoff over 50-ft. obstacle (ft.): 1240
Landing ground roll (ft.): 1380
Landing over 50-ft. obstacle (ft.): 2090
Source: Aircraft Bluebook Price Digest, Jane’s All The World’s Aircraft, manufacturer’s specs

Plane & Pilot

Plane + Pilot is general aviation’s only adventure-based magazine. From where to go, to how to get there, and everything in between, your next great adventure awaits.
Subscribe to Our Newsletter

Get the latest Plane & Pilot Magazine stories delivered directly to your inbox

SUBSCRIBE