Maule M-7

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M-7, MX-7, MXT-7
Maule.m7-235b.arp.jpg
M-7-235 Super Rocket
Role Utility aircraft
National origin United States
Manufacturer Maule Air
Designer Belford Maule
First flight 1984
Number built ca. 500 by 1995
Maule MX-7-235
Maule M-7-235C on amphibious floats
Maule M-7-235C on tundra tires
Maule M-7-260C Orion

The Maule M-7 is a family of single-engine light aircraft that has been manufactured in the United States since the mid-1980s.

Design and development[edit]

Based on the Maule M-4, it is a high-wing, strut-braced monoplane of conventional configuration, available with tailwheel or optional tricycle wheeled undercarriage[1] and frequently used as a floatplane with twin floats. The basic M-7 has a longer cabin than its predecessors the M5 & M6, with two seats in front, a bench seat for up to three passengers behind them, and (like the M-6) an optional third row of "kiddie seats" at the rear.[2] Extra cabin windows can be fitted if the "kiddie seats" are to be used. The MX-7 uses the same fuselage as the M-6,which is a modified M5 fuselage but the same wing span as the M-5,[2][3] and incorporates the increased fuel tankage, Hoerner-style wingtips and five-position flaps designed for the M-7.[4]

The M-7 family has been produced both with piston and turboprop engines.[2][3][5]

Variants[edit]

M-7 series[edit]

M-7-235 Super Rocket
Similar to M-6-235 with lengthened cabin. Tailwheel undercarriage and Lycoming O-540 engine[2]
M-7-235B Super Rocket[6]
Same as M7-235 including Oleo-Strut main landing gear.
M-7-235C Orion[6]
Same as M7-235B but with sprung aluminum main landing gear and Lycoming IO-540 engine.
M-7-260[6]
M-7-260C[6]
M-7-420 Starcraft Turboprop
M-7-235 with Allison 250 turboprop engine[2]
MT-7-235 Tri-Gear
Super Rocket with tricycle undercarriage[2]
MT-7-260[6]

MX-7 series[edit]

MX-7 Rocket[6]
MX-7-160 Sportplane
M-6 fuselage with M-5 wings. Lycoming O-320 engine[2][6]
MX-7-180 Star Rocket
MX-7 with lengthened cabin. Optional third row of seats with windows. Lycoming O-360 engine[2]
MX-7-180A Sportplane and Comet
MX-7-180B Star Rocket[6]
MX-7-180C Millennium[6]
MX-7-250 Starcraft
MX-7 with Allison 250 turboprop engine[2]
MX-7-420 Starcraft Turboprop
MX-7-235 with Allison 250 turboprop engine[2]
MXT-7-160 Comet
MX-7-160 with tricycle undercarriage
MXT-7-180 Star Rocket
MX-7-180 with tricycle undercarriage[2]

Specifications (M-7-235B)[edit]

Data from manufacturer[7] and FAA[8]

General characteristics

  • Crew: one
  • Capacity: four passengers
  • Length: 23.67 ft (7.21 m)
  • Wingspan: 32.92 ft (10.03 m)
  • Height: 6.33 ft (1.93 m)
  • Empty weight: 1,549 lb (703 kg) typical, equipped
  • Gross weight: 2,500 lb (1,134 kg)
  • Fuel capacity: 40 U.S. gallons (150 L; 33 imp gal) usable (standard)
  • Powerplant: 1 × Lycoming O-540-J1A5D six cylinder, horizontally-opposed, air-cooled aircraft engine, 235 hp (175 kW)
  • Propellers: 2-bladed Hartzell Propeller HC-C2YR-1BF/F8468A-6R constant speed propeller

Performance

  • Cruise speed: 147 mph (237 km/h, 128 kn) maximum structural cruising speed
  • Stall speed: 49 mph (80 km/h, 43 kn) flaps down
  • Never exceed speed: 182 mph (293 km/h, 158 kn)
  • g limits: +3.8/-1.5 g

Notes[edit]

  1. ^ Maule Air (1 January 2012). "Standard Equipment - MX(T)-7 Series and M(T)-7 Series Maule Aircraft" (PDF). Retrieved 17 June 2012.
  2. ^ a b c d e f g h i j k Simpson 1995, 242
  3. ^ a b Jane's All the World's Aircraft 1985–86, 448
  4. ^ "Private Aircraft Buyers' Guide" 1986, 39.
  5. ^ "Maule develops turboprops" 1987, 16
  6. ^ a b c d e f g h i World Aircraft Information Files, File 901 Sheet 08
  7. ^ "Maule M-7-235B Flight Manual" (PDF). Maule Aircraft. Maule Aerospace Technology, Inc. 7 June 2018. Archived from the original (PDF) on 3 May 2020. Retrieved 2 May 2020.
  8. ^ Federal Aviation Administration (19 February 2019). "Type Certificate Data Sheet No. 3A23" (PDF). faa.gov. Archived from the original (PDF) on 3 May 2020. Retrieved 3 May 2020.

References[edit]