Piper PA-42 Cheyenne

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"PA-42" redirects here. The term may also refer to Pennsylvania Route 42.
PA-42 Cheyenne
PA-42-720 Cheyenne IIIA
Role Turboprop
Manufacturer Piper Aircraft
First flight May 18, 1979
Produced 1979-1993[1]
Number built 192; 149 IIIAs and 43 400s
Developed from Piper PA-31T Cheyenne

The Piper PA-42 Cheyenne is a turboprop aircraft built by Piper Aircraft. The PA-42 Cheyenne is a larger development of the earlier PA-31T Cheyennes I and II (which are, in turn, turboprop developments of the PA-31 Navajo).

History

Lufthansa Cheyenne III with a T-tail

Cheyenne III

PT6
side exhausts

The PA-42 Cheyenne III was announced in September 1977. The first production Cheyenne III flew for the first time on May 18, 1979, and FAA certification was granted in early 1980. Compared with the Cheyenne II, the PA-42-720 was about 1 m (3 ft) longer, was powered by 537 kW (720-shp) PT6A-41 turboprops and introduced a T-tail, the most obvious external difference between the PA-31T and PA-42, as well as the most significant change to the series. Deliveries of production Cheyenne IIIs began on June 30, 1980.[2]

Cheyenne 400

TPE331
rear exhaust

In the late 1970s, Piper avoided developing a clean-sheet

light business jet to compete with the Cessna Citation I and upgraded its PT6As from 720 to 1,000 hp (540 to 750 kW) Honeywell TPE331-14s.[3] The PA-42-1000 Cheyenne IV was certified in 1984, 44 were built until 1991 and 37 remain in service in 2018.[3]

Due to its top speed over 400 mph, it was renamed the Cheyenne 400LS when Lear Siegler owned Piper, then the Cheyenne 400.[3]

Dowty Rotol propellers had four round-tip composite blades and 8 in (20 cm) of ground clearance. Its empennage was enlarged for stability at higher speeds and altitudes, and its fuselage was strengthened. Pressurization was increased to 7.6 psi (0.52 bar) to elevate its ceiling from 35,000 to 41,000 ft (10,700 to 12,500 m) while maintaining a 10,000 ft (3,000 m) cabin.[3]

The aircraft's top speed is 351 kn (650 km/h; 404 mph) and was faster than the Citation I on most trips while burning one-third less fuel. It can cruise at the same long-range speed over 1,842 nmi (3,411 km), 400 nmi (740 km) more; it can carry eight passengers farther than a

dispatch reliability and its cabin is quieter than a King Air.[3]

The 400LS made aviation history on 16 April 1985 by setting two new time-to-climb records for its class (C-1e Group 2, 3000m and 9,000m) and shattering two time-to-climb records for all turboprop classes (6,000m and 12,000m): with retired

Washington, DC-to-Paris and Gander-Paris.[4][5][6]

The 400LS has 100-hour inspection intervals, engine midlife inspections are due at 1,500 hours and overhauls come at 3,000 hours. The fuselage is limited to a 15,000-hour life, while the wing and empennage have 20,000-hour life limits.[3]

Variants

Specifications

flight deck
Corporate aircraft directory[8]
Variant III (PA-42)[9] IIIA (PA-42-720) 400 (PA-42-1000)
Crew 1-2
Passengers[1] 6-9
Length 43ft 5in / 13.2m
Span 47ft 8in / 14.5m
Height 14ft 9in / 4.5m 17ft 0in / 5.18m [1]
Wing area 293sq ft / 27.2 m2[1]
Cabin W × H 4ft 3in by 4ft 8in / 1.30m by 1.42m
MTOW 11,080lb / 5,026kg 11,200 lb (5,080 kg) 12,050 lb (5,466 kg)
OEW 6,389lb / 2,898kg 6,837 lb (3,101 kg) 7,565 lb (3,431 kg)
Fuel Capacity[7] 562 US gal (2,130 L)
3,752 lb (1,702 kg) 		582 US gal (2,200 L)
3,819 lb (1,732 kg)
2× Turboprops P&WC
PT6A
-41 		P&WC PT6A-61
Garrett TPE331
-14
Unit power 720 hp (537 kW) 1,000 hp (746 kW)
Cruise 290 kn (537 km/h) LR 282–305 kn (522–565 km/h) Max LR 298–351 kn (552–650 km/h) Max
Range 1,330 nmi / 2,463 km 2,270 nmi (4,204 km) 2,240 nmi (4,148 km)
BFL
 3,920 ft (1,195 m) 3,363 ft (1,025 m) 3,180 ft (969 m)
Ceiling[7] 33,000 ft (10,100 m) 35,000 ft (10,700 m) 41,000 ft (12,500 m)
Climb rate[1] 2,380 ft/min / 12.1 m/s[10] 2,235 ft/min (11.35 m/s) 3,242 ft/min (16.47 m/s)
Wing loading 37.8 lb/sq ft (185 kg/m2) 38.2 lb/sq ft (187 kg/m2) 41.1 lb/sq ft (201 kg/m2)
power/mass 0.13 hp/lb (0.21 kW/kg) 0.13 hp/lb (0.21 kW/kg) 0.17 hp/lb (0.28 kW/kg)

Operators

The aircraft is operated by private individuals, companies and executive charter operators. A number of companies also use the aircraft as part of fractional ownership programs.

See also

Related development

Aircraft of comparable role, configuration, and era

References

  1. ^ a b c d e f Gerard Frawley. "Piper PA-42 Cheyenne III/400". The International Directory of Civil Aircraft – via Airliners.net.
  2. ^ Robert A Searles (April 2014). "Cheyenne III/IIIA The first of the big Cheyennes". AOPA Pilot: T-2.
  3. ^ a b c d e f g Fred George (August 23, 2018). "Piper Cheyenne 400LS: Big Dog Turboprop Could Best A Citation I". Business & Commercial Aviation.
  4. ^ "Piper Cheyenne 400LS Record Set by Chuck Yeager". YouTube. Retrieved August 24, 2020.
  5. ^ "Quick Look: Piper Cheyenne 400LS, Rare hot rod performs more like a jet". May 2, 2015. Retrieved August 24, 2020.
  6. ^ "Chuck Yeager - Chasing the Demons for 72 Years". October 15, 2019. Retrieved August 24, 2020.
  7. ^ a b c "Piper PA-42 Type Certificate data sheet No. A23SO" (PDF). FAA. June 24, 2010.
  8. ^ "Corporate aircraft directory". Flight International. November 15, 1989. p. 54.
  9. ^ "Business jet and turboprop directory". Flight International. November 14, 1981.
  10. ISBN 0-7106-0867-5
    .

External links

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