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Piper PA-30 Twin Comanche

piper-pa30


The Twin Comanche was a derivative of the single engine Comanche and was introduced in 1963 as a replacement for the Apache H. Little was done to the original Comanche fuselage when it was adapted for use in the Twin Comanche in order to simplify tooling and assembly operations. A cantilver low-wing monoplane with retractable tricycle landing gear and powered by two 160 hp / 119kW Avco Lycoming IO-320-B engines.

First flown in production form on 3 May 1963, the PA-30 was superseded in 1965 by an improved four/six-seat PA-30B-160 Twin Comanche, and made available also at the same time was the PA-30B Turbo Twin Comanche with Rayjay-turbocharged IO-320-C1A engines.

The PA-30 was offered in four models: Standard, Custom, Sportsman, and Turbo. The latter differed in engine power, and the rest contained different interior appointments, electronics, and instrumentation.

Both were replaced in 1970 by generally similar versions which introduced a powerplant with counter-rotating propellers. Designated PA-39 Twin Comanche C/R and PA-39 Turbo Twin Comanche C/R, manufacture of these two models ended in 1972, when total production of all versions amounted to 2,142. Piper announced the end of PA-30 production in 1970 and introduced a new PA-39 line.

Certification was under FAA A1EA.

One of these aircraft was used by Max Conrad to establish a new world class distance record when he flew non-stop from Cape Town, South Africa, to St Petersburg, Florida, during 24-26 December 1964. The distance of 12,678.83km remained a record in its class in 1993.

Its responsive handling earned it an airworthiness directive that raised Vmc from 70 to 78 knots.

The Super Twin Comanche was “Kind of a nice little bomb," Pug muses, recalling the time he put two 300-hp Lycomings on the little Twin Comanche, almost doubling its horsepower. Even Piper, however, seriously questioned whether an airframe originally developed to hold a single four-cylinder, 180-hp engine was quite ready for 12 jugs and 600 horses.

Piper PA-30 1964 Twin Comanche
Engine: Lycoming IO-320-B1A, 160 hp
TBO: 2000 hr
Fuel type: 100LL
Propeller: Hartzell two-blade CS
Landing gear type: Tri/Retr.
Max ramp weight: 3600 lb
Max gross weight: 3600 lb
Max takeoff weight: 3600 lb
Empty weight: 2160 lb
Max landing weight: 3600 lb
Useful load, std: 1390 lb
Payload, full std. fuel: 900 lb
Usable fuel, std: 86 USgal
Wingspan: 36 ft. 0 in
Overall length: 25 ft. 2 in
Height: 8 ft. 3 in
Wing area:178 sq. ft
Wing loading: 19.56 lbs./sq. ft
Power loading: 11.25 lbs./hp
Wheel base: 7 ft. 4 in
Wheel track: 9 ft. 10 in
Wheel size, mains: 6.00 x 6
Wheel size, nose: 6.00 x 6
Seating capacity: 4
Cabin doors: 1
Cabin width: 44 in
Cabin height: 46 in
Baggage capacity: 200-250 lb
Cruise speed 75% power @ 8,000 ft: 168
Cruise speed 65% power @ 12,000 ft: 161 kt
Cruise speed 55% power @ 14,000 ft: 148 kt
Max range (w/ res) 75% power @ 8,000 ft.: 823 nm
Max range (w/ res) 65% power @ 12,000 ft.: 890 nm
Max range (w/ res) 55% power @ 14,000 ft.: 970  nm
Fuel consumption 75% power: 17.2 USgph
Fuel consumption 65% power: 15.2 USgph
Fuel consumption 55% power: 13.4 USgph
Stall speed (gear, flaps down, power off): 66 kt
Stall speed (gear, flaps down, power on): 60 kt
Best rate of climb: 1460 fpm
Service ceiling: 18,600 ft
Takeoff ground roll: 950 ft
Takeoff over 50-ft. obstacle: 1530 ft
Landing ground roll: 1215 ft
Landing over 50-ft. obstacle: 1875 ft
Service ceiling: 18,600 ft
Single-engine service ceiling: 6600 ft
Takeoff ground roll: 950 ft
Takeoff over 50-ft. obstacle: 1570 ft
Landing ground roll: 700 ft
Landing over 50-ft. obstacle: 1875 ft

1966 PA-30B Turbo Twin Comanche
Engine: Lycoming IO-320-CIA, 160 hp
TBO: 1800 hr
Propeller: Const. spd.
Landing gear: Tri/Retr.
Gross weight: 3725 lb
Empty weight, std: 2408 lb
Useful load, std: 1317 lb
Fuel: 120 USgal
Wingspan: 36 ft
Overall length: 25 ft. 2 in
Height: 8 ft. 2 in
Wing area: 178 sq. ft
Seating capacity: 4
Cabin width: 44 in
Cabin height: 46 in
Baggage capacity: 250 lb
Cruise speed 75% power: 194 kt
Cruise speed 65% power: 179 kt
Max range (w/ res) 75% power: 812 nm
Max range (w/ res) 65% power: 948 nm
Fuel consumption  75% power: 17.2 USG
Fuel consumption   65% power: 14.9 USG
Stall speed (gear, flaps down): 60 kt
Best rate of climb: 1460 fpm
Service ceiling: 30,000 ft
Takeoff ground roll: 950 ft
Landing ground roll: 1700 ft

1969 Piper Twin Comanche
Engine: Lycoming IO-320-B1A, 160 hp @2700 rpm
TBO: 2000 hr
Fuel type: 100/100LL
Propeller: CS
Landing gear: Tri/Retr.
Max ramp weight: 3600 lb
Gross weight: 3600 lb
Landing weight: 3600 lb
Empty weight, std: 2210 lb
Useful load, std: 1390 lb
Payload, full std. fuel: 850 lb
Usable fuel: 90 USG
Optional fuel - std. (tip tanks): 120 USG
Oil capacity: 8 qt
Wingspan: 36 ft
Overall length: 25 ft. 2 in
Height: 8 ft. 3 in
Wing area: 178 sq. ft
Wing loading: 20.2 lbs./sq. ft
Power loading: 11.3 lbs./hp
Wheel base: 7 ft. 3 in
Wheel track: 9 ft. 10 in
Wheel size: 6.00 x 6
Seating capacity: 4-6
Cabin doors: 1
Cabin width: 44 in
Cabin height: 46 in
Baggage capacity: 250 lb
Cruise speed 75% power @ 8,000 ft: 169 kt
Cruise speed 65% power @ 12,000 ft: 162 kt
Cruise speed 55% power @ 10,000 ft: 144 kt
Max range (w/100 nm reserve) 75% power: 724 nm
Max range (w/100 nm reserve) 65% power: 791 nm
Fuel consumption (@ .42 lbs./hp/hr. sfc)  75% power: 16.8 USgph
Fuel consumption (@ .42 lbs./hp/hr. sfc) 65% power: 14.6 USgph
Fuel consumption (@ .42 lbs./hp/hr. sfc) 55% power: 12.3 Usgph
Vs: 66 kt
Vso: 60 kt
Best rate of climb (SL): 1460 fpm

Piper PA-39 Twin Comanche C/R
Engines: 2 x 119kW Avco Lycoming IO-320-B1A
Propellers: counter-rotating
Max take-off weight: 1690 kg / 3726 lb
Empty weight: 1030 kg / 2271 lb
Wingspan: 11.21 m / 37 ft 9 in
Length: 7.67 m / 25 ft 2 in
Height: 2.51 m / 8 ft 3 in
Max. speed: 330 km/h / 205 mph
Ceiling: 6095 m / 20000 ft
Range: 1931 km / 1200 miles

Miller Twin Commanche 200 / Piper Twin Commanche
Engines: 2 x Lycoming IO-360-C1C, 200 hp
Seats: 6
Wing loading: 20.2 lb/sq.ft
Pwr loading: 9.5 lb/hp
Max TO wt: 3780 lb
Empty wt: 2366 lb
Equipped useful load: 1315 lb
Payload max fuel: 403 lb
Range max fuel 75% cruise: 1353 nm/7.1 hr
Range max fuel / 55% cruise: 1455 nm/ 8 hr
Service ceiling: 21,000 ft
Max  cruise: 191 kt
55% cruise: 183 kt
Vmc: 72 kt
Stall: 60-66 kt
1.3 Vso: 78 kt
ROC: 1900 fpm
SE ROC: 500 fpm @ 91 kt
SE ceiling: 11,500 ft
Min field length: 1875 ft
Fuel cap: 504/912 lb

Miller Turbo Twin Commanche 200
Engines: 2 x Lycoming IO-360-C1F, 200 hp
Seats: 6
Wing loading: 20.2 lb/sq.ft
Pwr loading: 9.5 lb/hp
Max TO wt: 3780 lb
Empty wt: 2406 lb
Equipped useful load: 1275 lb
Payload max fuel: 363 lb
Range max fuel/ 75% cruise: 1332 nm/5.9 hr
Range max fuel / 55% cruise: 1587 nm/ 7.5 hr
Service ceiling: 30,000 ft. 75% cruise: 226 kt
55% cruise: 213 kt
Vmc: 72 kt
Stall: 60-66 kt
1.3 Vso: 78 kt
ROC: 1900 fpm
SE ROC: 500 fpm @ 105 kt
SE ceiling: 22,000 ft
Min field length: 1875 ft
Fuel cap: 504/912 lb

 

 


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