The Piper PA-24 Comanche is an American four-seat or six-seat, low-wing, all-metal, light aircraft of
semimonocoque construction with tricycle
retractable landing gear.
Piper Aircraft
Piper Aircraft, Inc. is a manufacturer of general aviation aircraft, located at the Vero Beach Regional Airport in Vero Beach, Florida, United States and owned since 2009 by the Government of Brunei. Throughout much of the mid-to-late 20th centur ...
designed and developed the Comanche, which first flew on May 24, 1956. Together with the PA-30 and PA-39
Twin Comanches, it made up the core of the Piper Aircraft lineup until the production lines for both aircraft were destroyed in the
1972 Lock Haven flood.
Design and development

The Comanche is a four-seat (or in 260B and 260C models, six-seat), single-engined, low-wing monoplane. It is an all-metal aircraft with a retractable landing gear.
Two prototypes were built in 1956, with the first being completed by June 20, 1956.
The first production aircraft, powered by a
Lycoming O-360-A1A engine, first flew on October 21, 1957. In 1958, it was joined by a higher-powered PA-24-250 with a
Lycoming O-540-A1A5 engine; this model was originally to be known as the PA-26, but Piper decided to keep the PA-24 designation.
In 1964, the PA-24-400 was introduced.
The following year, the PA-24-250 was superseded by the PA-24-260, featuring the
Lycoming IO-540D or E engine of . The 260 was also available as the Turbo Comanche C with a
Rajay turbocharger, and was introduced in 1970.
[Taylor, John WR, editor: ''Jane's Light Aircraft'', page 165. Jane's Publishing Company, 1982. ]
Production of the Comanche ended in 1972, when torrential rains from
Hurricane Agnes caused the
great Susquehanna River flood of 1972, flooding the manufacturing plant and destroying airframes, parts, and much of the tooling necessary for production. Rather than rebuild the tooling, Piper chose to abandon production of the Comanche and Twin Comanche and continue with two newer designs already in production at Piper's other plant in
Vero Beach, Florida - the twin-engined
PA-34 Seneca and the
PA-28R-200 Arrow.
Variants
Comanche 180

The original version of the Comanche was the PA-24, which featured a carbureted Lycoming O-360-A1A engine, swept tail,
laminar flow
In fluid dynamics, laminar flow is characterized by fluid particles following smooth paths in layers, with each layer moving smoothly past the adjacent layers with little or no mixing. At low velocities, the fluid tends to flow without lateral mi ...
airfoil, and all-flying
stabilator
A stabilator is a fully movable aircraft horizontal stabilizer. It serves the usual functions of longitudinal stability, control and stick force requirements otherwise performed by the separate parts of a conventional horizontal stabilizer and el ...
.
The standard fuel capacity of the PA-24-180 was . The flaps were manually actuated, controlled by the same
Johnson bar actuator as the
Piper Cherokee. The aircraft specifications were for cruise speeds of and fuel burns between at 55 and 75% power settings, respectively. Full-fuel payload with standard fuel was , with a gross weight of and range with 45-minute reserve of .
When new, standard, typically equipped Comanche 180s sold between $17,850 (1958) and $21,580 (1964). A total of 1,143 were built.
Comanche 250
In 1958, Piper introduced a version using a Lycoming O-540 engine, giving the PA-24-250 Comanche a top cruise speed of . Most 250s had carbureted Lycoming O-540-AIA5 engines, but a small number were fitted out with fuel-injected versions of the same engine. Early Comanche 250s had manually operated flaps and carried of fuel. Auxiliary fuel tanks ( total) became available in 1961. Electrically actuated flaps were made standard with the 1962 model year.
Comanche 260

Four 260-horsepower (194 kW) versions of the Comanche were introduced beginning in 1965. They were:
*PA-24-260 (1965)
*PA-24-260B (1966 to 1968)
*PA-24-260C (1969 to 1972)
*PA-24-260TC (Turbocharged 260C) (1970 to 1972)
A total of 1,029 airplanes were sold from the Comanche 260 line, including the 260TC.
The 260 had an empty weight around and a maximum gross weight of . It had four seats, and a -capacity auxiliary fuel system was available as an option. Cruise speed was advertised as with fuel burn of .
The 260B had an overall length more than the previous models due to a longer propeller spinner, not a longer fuselage. The 260B had a third side window and a provision for six seats. The fifth and sixth seats take up the entire baggage area and seat smaller adults, placarded to a total weight of . Typical empty weight was and gross weight was . Fuel burn was and advertised speed was .
The 260C introduced a new "Tiger Shark" cowling, maximum gross weight of , cowl flaps, and an aileron-rudder interconnect. Cruise speed was advertised as with fuel flow of . To prevent possible aft center-of-gravity problems due to the increased gross weight and its fifth and sixth seats, the propeller shaft was extended. This moved the center of gravity slightly forward. With a useful load of , it has the largest payload of all of the Comanches except the 400. Often mistaken on the ramp for the 400 model, the slightly longer cowling includes a distinctively longer nose gear door, as compared to the B models and older versions.
Starting in 1970, Piper offered a turbo-normalized variant of the PA-24-260 known as the 260TC with a
Lycoming IO-540-R1A5 engine and dual Rajay turbochargers. Twenty-six were produced between 1970 and 1972. Advertised by Piper as a "second throttle", the turbochargers are controlled using a manual wastegate assembly that places an additional handle labeled "boost" next to the throttle handle in the cockpit, effectively creating a secondary throttle. The TC model is certified for flight to , with an advertised turbo critical altitude of , giving a maximum true airspeed of .
PA-24-300
In 1967, one aircraft was modified with a Lycoming engine for trials. It did not enter production.
PA-24-380
Two prototype aircraft were built in 1961. They were standard Comanche airframes, but had Lycoming IO-720-A1A engines with a three-bladed propeller. The design was modified with an even larger engine and produced as the PA-24-400.
Comanche 400
The PA-24-400 Comanche 400 was produced from 1964 to 1966.
Only 148 PA-24-400s were built.
The Comanche 400 is powered by the ,
horizontally opposed
A flat engine is a piston engine where the cylinders are located on either side of a central crankshaft. Flat engines are also known as horizontally opposed engines, however this is distinct from the less common opposed-piston engine design, wh ...
, eight-cylinder
Lycoming IO-720 engine, developed specifically for the model.
Cooling problems have happened with the rear cylinders.

The Comanche 400 has a three-bladed propeller and carries of fuel, or with optional extended tanks. Fuel burn was advertised as , at 55-75% power. The high fuel burn means that it is expensive to operate. The 400 had a typical empty weight of and a maximum gross weight of .
Book speeds for the PA-24-400 included a cruising speed of and a top speed of .
While identical in planform to other PA-24 models, the 400 is structurally strengthened, primarily in the tail, with an extra nose rib in the stabilator and the vertical fin. The stabilator, vertical fin, and rudder of the 400 share virtually no common parts with the 180, 250, or Comanches.
Twin Comanche
PA-33

In 1967, a single Comanche was modified by Swearingen with a pressurized cabin. The prototype, powered by a Lycoming O-540 engine and equipped with Twin Comanche landing gear, was designated the PA-33.
First flown on March 11, 1967, the prototype later crashed on takeoff in May 1967 and the project was cancelled.
World records
Max Conrad
In June 1959,
Max Conrad
Max Arthur Conrad, Jr. (January 21, 1903 – April 3, 1979 in Summit, New Jersey) known as the "Flying Grandfather", was a record-setting aviator. In the 1950s and 1960s, he set nine official light plane world records, three of which still stan ...
flew a Comanche 250 on a record-breaking distance flight in
Fédération Aéronautique Internationale
The (; FAI; en, World Air Sports Federation) is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It maintai ...
C1-D Class, for aircraft from to less than . Having removed the interior seats and replaced them with fuel tanks, Conrad flew nonstop from
Casablanca
Casablanca, also known in Arabic as Dar al-Bayda ( ar, الدَّار الْبَيْضَاء, al-Dār al-Bayḍāʾ, ; ber, ⴹⴹⴰⵕⵍⴱⵉⴹⴰ, ḍḍaṛlbiḍa, : "White House") is the largest city in Morocco and the country's econom ...
,
Morocco, to
Los Angeles, a distance of . When the aircraft took off from Casablanca, it was heavily overloaded and just cleared the airport fence.
The Comanche 250 Max Conrad flew for this flight is now located in the museum at the
Liberal, Kansas, airport.
On November 24–26, 1959, Conrad flew a Comanche 180 on a distance record flight in FAI C1-C Class for aircraft taking off at weights from to less than ) that still stands: Casablanca to
El Paso, Texas, nonstop, a distance of , in 56 hours 26 minutes.
He set a closed-circuit distance record in the same aircraft on July 4–6 November 1960, flying .
Kenneth Walker
On 14 May 1962, Kenneth Walker arrived in
Brisbane, Australia, in a PA-24-250 on a delivery flight from
San Francisco. Walker's flight was the first ever solo single-engine crossing of the Pacific, and the third solo crossing from the US to Australia. From Brisbane, Walker continued south to deliver the Comanche to the Royal Newcastle Aero Club at
Maitland, New South Wales
Maitland () is a city in the Lower Hunter Valley of New South Wales, Australia and the seat of Maitland City Council, situated on the Hunter River approximately by road north of Sydney and north-west of Newcastle. It is on the New England Hi ...
, Australia.
Toku-Hana

In July 1964, Henry Ohye, flying a 1961 PA-24-250, made the first successful trans-Pacific flight from the United States to Japan in a single-engined aircraft. He flew from Los Angeles to
Tokyo with stops in
Honolulu,
Midway,
Wake
Wake or The Wake may refer to:
Culture
*Wake (ceremony), a ritual which takes place during some funeral ceremonies
*Wakes week, an English holiday tradition
* Parish Wake, another name of the Welsh ', the fairs held on the local parish's patron s ...
,
Guam, and
Okinawa.
Myth Too
A 1966 Comanche 260B, named ''Myth Too'' and registered as G-ATOY, was owned by English
aviator
An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its Aircraft flight control system, directional flight controls. Some other aircrew, aircrew members, such as navigators or flight engineers, are al ...
Sheila Scott. The aircraft, flown by Scott, holds 90 world-class light aviation records. It is on public display at the
National Museum of Flight
The National Museum of Flight is Scotland's national aviation museum, at East Fortune Airfield, just south of the village of East Fortune, Scotland. It is one of the museums within National Museums Scotland. The museum is housed in the original ...
, Scotland.
Oldest circumnavigator
The circumnavigation by the oldest pilot on record in 1994 was made by Fred Lasby at age 82 in a Comanche 260B.
Accidents
*The
1963 Camden PA-24 crash
On March 5, 1963, American country music performers Patsy Cline, Cowboy Copas, and Hawkshaw Hawkins were killed in an airplane crash near Camden, Tennessee, United States, along with the pilot Randy Hughes. The accident occurred as the three arti ...
– On March 5, 1963, country music singers
Patsy Cline,
Lloyd "Cowboy" Copas, and
Hawkshaw Hawkins were on board a Comanche owned and piloted by Cline's manager, Randy Hughes, when it crashed in deteriorating weather near
Camden, Tennessee, killing all on board.
Specifications (PA-24-260C)
References
*
*
*
External links
{{DEFAULTSORT:Piper Pa-24 Comanche
Comanche
The Comanche or Nʉmʉnʉʉ ( com, Nʉmʉnʉʉ, "the people") are a Native American tribe from the Southern Plains of the present-day United States. Comanche people today belong to the federally recognized Comanche Nation, headquartered in La ...
1950s United States civil utility aircraft
Single-engined tractor aircraft
Low-wing aircraft
Aircraft first flown in 1956