RASPET Rotating Header Image

AIRCRAFT

The Raspet Flight Reseach Laboratory has six general aviation aircraft available for teaching and evaluating flight test procedures, in-flight sensor testing, and providing chase aircraft if required.

 

Boeing PT-17 (Kaydet) Stearman

The PT-17 was built in 1942 and was used as the primary training aircraft for the United States Army Corps.  The airplane was acquired in 1950 for the use as a towplane for the research sailplanes in use at that time.  The Stearman is powered by a Pratt & Whitney R-985 450 horsepower radial engine.  The airplane continues to be used as a towplane today. 

General characteristics

  •  Crew: two, student and instructor
  • Length: 24 ft 9 in (7.54 m)
  • Wingspan: 32 ft 2 in (9.81 m)
  • Height: 9 ft 8 in (3 m)
  • Wing area: 298 sq ft (27.7 m²)
  • Empty weight: 1,931 lb (878 kg)
  • Max takeoff weight: 2,635 lb (1,200 kg)
  •  Engine: 1 × Pratt & Whitney R-985 Wasp 450hp

Performance

  • Maximum speed: 155 mph (135 knots, 249 km/h)
  • Cruise speed: 115 mph (100 knots, 185 km/h)
  • Service ceiling: 18,000 ft (5,486 m)


Cessna 319

The Cessna 319, a two-place, tandem airplane, was originally built in 1957 for Wichita State University for short takeoff and landing (STOL) research.  The 319 is powered by an O-470 225 horsepower engine.  It had a specially designed wing with a boundary layer control (BLC) system that blew on the outer portion and had suction on the inner portion and a Cessna 180 vertical tail.  Before the aircraft was acquired by RASPET, the special BLC wing was removed and replaced with a standard L-19 wing.  The aircraft was used in a stall prevention program with NASA.  It is used as a chase/photographic aircraft.

General characteristics

  • Crew: 2
  • Length: 25 ft 9 in (7.85 m)
  • Wingspan: 36 ft 0 in (10.97 m)
  • Height: 7ft 3½ in (2.22 m)
  • Wing area: 174 ft² (16.16 m²)
  • Empty weight: 1,614 lb (732 kg)
  • Max takeoff weight: 2,400 lb (1089 kg)
  • Engine: 1 × Continental O-470-11 flat six piston, 225 hp (167.8 kW)

Performance

  • Maximum speed: 130 mph (209 km/h)
  • Range: 530 miles (853 km)
  • Service ceiling: 20,300 ft (6,200 m)
  • Rate of climb: 1,040 ft/min (317 m/min)

 

 

Grumman (Gulfstream) American AA5B Tiger

The Tiger is the first prototype of the Grumman American Tigers.  It was completed in 1976.  The Tiger is a 4-place, low-wing monoplane aircraft powered by an O-360 180 horsepower horizontally-opposed reciprocating engine.  The airplane is used in the Aerospace Engineering curriculum, such as in the Introduction to Flight Test Engineering class to teach the students the fundamentals of flight test engineering and in the Aircraft Flight Dynamics class to show the students the different flight modes: short period, long period, Dutch roll, spiral, and roll.  In addition, it has been used in a graduate research project using differential GPS for determining takeoff and landing performance.

General characteristics

  • Crew: one, pilot
  • Capacity: 3 passengers
  • Length: 22 ft 0 in (6.706 m)
  • Wingspan: 31 ft 5 in (9.576 m)
  • Height: 8 ft 0 in (2.438 m)
  • Wing area: 140 sq ft (13.00 m²)
  • Empty weight: 1,398 lb (634 kg)
  • Max takeoff wt: 2,200 lb (998 kg)
  • Engine: 1 × Lycoming O-360 180hp

Performance

  • Max speed: 143 knots (265 km/h)
  • Stall speed (clean): 56.5 knots
  • Stall speed (flaps): 53 knots
  • Cruise speed: 139 knots (257 km/h)
  • Cruise altitude: 8,500 ft
  • Cruise range: 554 nm
  • Service ceiling: 13,800 ft (3,962 m)


 

Piper Twin Comanche PA-30

The Twin Comanche is a 1964 model.  It was acquired by RASPET in the early 1970s.  The Twin Comanche is powered by two IO-320 160 horsepower engines.  The Twin Comanche is a four-place aircraft with a cruise speed of 169 knots.  The main purpose of the Twin Comanche is travelling to local companies for meetings and visits.

General characteristics

  • Crew: one, pilot
  • Capacity: 3 passengers
  • Length: 25 ft 2 in (7.671 m)
  • Wingspan: 36 ft 0 in (10.97 m)
  • Height: 8 ft 3 in (2.515 m)
  • Wing area: 178 sq ft (16.54 m²)
  • Empty weight: 2,160 lb (979.7 kg)
  • Max takeoff weight: 3,600 lb (1633 kg)
  • Engine: 2 × Lycoming IO-320 160hp

Performance

  • Maximum speed: 178 knots (329.7 km/h)
  • Stall speed (clean): 66 knots (122 km/h)
  • Stall speed (flaps): 60 knots (111 km/h)
  • Cruise speed: 169 knots (313 km/h)
  • Cruise altitude: 8,000 ft
  • Cruise range: 886 nm
  • Rate of Climb: 1,460 ft/m
  • Service ceiling: 18,600 ft (5,669 m)


 

Hughes Aircraft OH-6A Cayuse Helicopter

The OH-6A is a 1969 light observation helicopter formerly used by the U.S. Army during the Vietnam Conflict.  RASPET acquired the helicopter from the U.S. Naval Postgraduate School, which obtained the helicopter from the U.S. Army after the Vietnam Conflict.  The OH-6A is powered by an Allison 250-C10D 317 horsepower turbo-shaft engine and is currently used as an observation aircraft and to conduct experiments for research programs and students.

General characteristics

  • Crew: 2
  • Length: 30 ft 10 in (9.4 m)
  • Rotor diameter: 27 ft. 4 in (8.33 m)
  • Height: 8 ft 6 in (2.6 m)
  • Empty weight: 1,211 lbs (549 kg)
  • Max takeoff weight: 2,550 lbs (1,157 kg)
  • Powerplant: 1 × One Allison T63 turboshaft, 317 hp (236 kW)

Performance

  • Maximum speed: 125 knots (144 mph, 232 km/h)
  • Cruise speed: 100 knots (115 mph, 185 km/h)
  • Range: 359 nm (413 mi, 665 km )
  • Service ceiling: 15,994 ft (4,875 m)
  • Rate of climb: 1,440 ft/min (7.3 m/s)


 

RASPET Owl OPA

The Owl is an ultralight sailplane designed to be an optionally piloted aircraft (OPA).  The Owl is a single-place, all-composite sailplane.  Installed on each Owl (RASPET has two) is an L-3 Geneva Aerospace flightTEK® autopilot, Dynon Avionics electronic flight information system (EFIS), and Microair transceiver and transponder.  One Owl is configured to be flown autonomously or remotely and has a non-retractable 32-hp engine installed.  The other Owl is unpowered and configured strictly for manned flight.

General characteristics

  • Crew: 1
  • Length: 20 ft 7.2 in (6.279 m)
  • Height: 0 ft 42 in (1.067 m)
  • Empty weight: 235 lbs (106.6 kg)
  • Max takeoff weight: 500 lbs (226.8 kg)
  • Powerplant: 32-hp normally aspirated engine or none

Performance

  • Maximum L/D: 30:1 at 55 knots
  • Stall speed (clean): 37 knots (68.5 km/h)
  • Minimum sink rate: 175 ft/min at 46 knots