Aircrdt Publications
Piper Comanche
250
(Early Model)
COMPARISON OF PRODUCTION MODEL TWIN COMANCHES
'be
Dcrignntion
Ycm
Ilmufacturcd
:\ppraaimatc Number Built
LZ"bnh
(n)
Height
(R)
Wing Spnn (A)
Powcrplanl (Lycoming)
Ratings (bhp-rpm)
TBO
(hr)
Wing
.ha
(sq
R)
Wing Loading (Ibisq A)
Power Loading (Ibhhp)
Scab
Fuel Capacity (US Gal)
Baggage Capacity (Ib)
Orosr
Weight (Ib)
Maximum Mine Weieht Ob)
..
Sundvd
Empty Gcight (Ib)
I1ar:mum
Csciul
laad (lb)
Ilaumum Crefil had WlFull Fuel (Ib)
Fuel Flow
@
75% Power (gph)
Fuel Flow@ 65% Power(gph)
Fuel Flow
@
55% Power (gph)
Range
@
75% Power Wl45 min Rwe
(m)
Range
@
65% Pow= Wl45 min Raervc
(m)
Range
@
55% Power Wl45
min
Rssave
(m)
Endurance
@
75% Power Wi45
min
Rwe
(bc)
Endurance
@
65% Power Wl45 min Reserve
(bc)
Endurance
@
55% Power Wl45
min
Reserve
(iu)
Cruire Specd
@
75% Power (mph)
Cruise Speed@ 65% Power (mph)
Cruise Speed@ 55% Power(mph)
Rate
af
Climb(Wmin)
Single-Engine Rate
of
Climb(Wmin)
Climb Gradient
(Wnm)
Service Ceiling (A)
Absolute Ceiling (A)
Single-Engine Senrice Ceiling
(fl)
Single-Engine Absolute Ceiling (A)
Accelerate
-
Stop Distance (A)
Takeoff Distance, Ground Run (A)
Total Over
a
50 A Obstacle
(fl)
Lmding Dtstance. Oround
&';I
(R)
Total Over
a
50 A Ohrtlcle (A)
SPECIFICATIONS
PERFORMANCE
LIMITING AND RECOMMENDED AIRSPEEDS
WPH-IAS)
VA
-
Design Maneuvering Speed
VFE
-
Maximum Flap Extension Specd
V,
-
Maximum Operating Speed (TAS)
VLO
-
Maximum Gear Operation Specd
VMw
-
Minimum Control Speed WiCritical Engine Inopmtive
VNE
-
Never Exceed Speed
VNO
-
Normal Operation Speed
Vn
-
Rotation Swcd
""~
.
.
V,,
-
Stall Speed (Clean)
VssE
-
Minimum Intentional Single-Engine S@
Vx
-
Best
Angle-of-Climb Speed
VwE
-Bed
Single-Engine AngledfClimb
Speed
V,
-
Best Ratwf-Climb Speed
VysE.
Best Single-Engine Rate-of-Climb Specd
Both
Engine Out Glide Speed
(Optimum)
NIA
=
Information Not Available
Copyright:
1993
Section
-
0
Preamble
PA-39T
1970-72
NIA
25.2
8.2
36.8
10-320-C
160.2700
1,800
178
20.9
11.7
44
120
250
3,725
3,725
2.416
1,309
589
17.2
15.2
13.4
1,316
1,353
1,386
5.9
6.7
7.7
223
202
180
1,290
165
798
25,000
25,000
8,800
12,600
2,560
990
1,590
725
1,900
162
125
240
150
80
230
194
90
70
76
97
90
94
112
105
110
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