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Maule M-7-420

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Maule M7-420 Specifications

    Primary Function:
    Weight Empty:
    Max. Weight:
    Fuel Capacity:
    Cruise Speed:
    Max. Speed:
    Climb Rate:
    First Flight:
    Year Deployed:
utility transport
Allison Turbine
420 hp.
1,600 lbs.
2,500 lbs.
85 gals.
1 pilot + 4 passengers
900 lbs.
23 ft. 6 in.
32 ft. 8 in.
190 mph
210 mph
2,800 fpm
20,000 feet
600 miles

Maule Aircraft For Sale
Maule Aircraft For Sale

The Maule aircraft for sale from Powerplanes Int'l. has a wingspan of 66" with a weight of about 128 oz. Wings are balsa over foam and the fuselage is made from balsa and plywood. An OS .56 4C engine is recommended for power.

Maule Aircraft for sale are known for being a good value, easy to fly, reliable, and long lasting. The model M-7-420 is the world's smallest turboprop powered aircraft.

Maule's have been used as trainers, by the military, as sight-seeing aircraft, by police departments and as recreational aircraft. They have been equipped with skies and floats. Their short take off and landing abilities are appreciated by bush pilots in remote areas of the world.

Maule aircraft were conceived by Belford D. Maule in 1952. He designed them from the start to be high performance utility aircraft which could be flown from small, unimproved air strips. The aircraft first took to the air in 1957.

The Maul Aircraft Corp. was officially formed in 1962. Their first model, the M-4, became instantly popular. By 1968 the aircraft were upgraded with engines that produced over 50% more power. A new plant was opened to accommodate additional production. Some 250 aircraft had been sold to date.

Maule aircraft for sale continued to be refined and improved through the years. Engine power was increased, and controls enhanced for better response. By 1990 the aircraft were being sold throughout the world. By the mid 1990's Maule aircraft for sale reached the no. 3 position of best selling single engine aircraft in the United States, producing over 60 aircraft a year.

The cockpit of the Maul is spacious for the largest of people, and comfortable. The interior is brightly lit, and visibility is excellent through the large side windows.

When starting a newer Maul aircraft that uses a three bladed propeller, you will find it extremely smooth running. Not only is the idle smooth, but the aircraft is smooth throughout its operational range.

Taking off happens in the blink of an eye in this STOL aircraft. The Maule will lift its tail with just a short roll and be ready to rotate after about 200 feet. Very little rudder is necessary to counter propeller torque. Although the Maule will get off of the runway in a hurry, with the piston engine its maximum climb is about 1,250 fpm. The good thing is that it will climb at just about that same rate from a high altitude runway, or when fully loaded. However, higher altitudes will lengthen the takeoff run.

Landings in the Maule require some effort. The factory recommends 65 mph as the approach speed. Dropping the speed under 62 mph will result in it sinking at a surprisingly quick rate. Flying an approach at above 70 mph will make it hard to bring down. Small throttle corrections at slower approach speeds results in excellent aircraft control during steep approaches. During flair, one must be ready to apply throttle instantly to prevent the Maule from dropping from the sky.

Once the Maule settles down on the runway, it steers like most other tail dragger aircraft. Things happen slowly due to its slow landing speed and quick deceleration. However, the large aircraft profile make it susceptible to strong cross winds. Brakes, rather than rudder, are best used to keep the aircraft from weathervaning.

A total of over 1,800 Maule aircraft have been sold to date.

Maule Aircraft For Sale

The Maule aircraft for sale by Lubbock Aero is a 2006 model M4. It has a wingspan of 29' 9" and a length of 22'. Power comes from a Fraklin engine producing 220 h.p.

Maule Aircraft For Sale

The Maule Aircraft for sale by Aircraft Canada is a 1974 model M5. It has a wingspan of 30' 10", a length of 23' 6", seats four, and holds 42 gals. of fuel. Power comes from a Franklin 220 h.p. engine with 1934 hours total time.

Maule Aircraft For Sale

There is a Maule Aircraft for sale from MAAK STOL. It is a 1983 model M6 that comes with floats. Seating is for four and it comes with long range fuel tanks. Total aircraft time is 1600 hours. The engine is Lycoming fuel injected 235 h.p. with 700 hours since last major overhaul. It drives an 86" two blade propeller. Wingspan is 32.9 ft. and length is 23.5 ft.

Maule Aircraft For Sale

Flight Planet shows a Maule Aircraft for sale that is a 2007 model M7 with a 33' 6" wingspan and 23' 6" length. The aircraft seats five and holds 73 gallons of fuel. Powering it is a Lycoming EFI engine producing 235 h.p. turing an 81" two blade prop. There are only 500 hours total time on the aircraft.

Maule Aircraft
Maule Aircraft For Sale

The Maule aircraft for sale built by Fred Guilfoyle from reduced AMA plans wingspan is 80" and weight is about 9 lbs. Fred uses a AXI 4120/14 motor for power. You can find the build thread at RC Groups.

Fred tells us about his experience flying his Maule for the first times. He says that with about 15 degrees of flaps, it quickly got off of the ground at only half throttle. The model was easily trimmed for straight and level flight. Next a loop was tried. It was nice, big and round. With about 15 degrees flap down for landing, it appeared that there was too much down elevator mixed with the flaps. The Maule didn't slow down as much as expected. However, it did touch down for a good landing. For the next flight the c/g was moved forward by adjusting the position of the flight battery. The take off was with almost full flaps this time. The Maule was a lot more steady in flight, even in a slight cross wind. For the next landing no down elevator mixing and almost full flaps were used. Now the aircraft behaved a lot better, slowing as it should. Instead of quitting after the successful landing, another go around was tried. However, the tiny receiver battery was running out of juice. Luckily the Maule got back on the ground safely before it completely ran out.

Maule Aircraft For Sale

That's D.R. Bowen and a friend with their Maule aircraft for sale from AMA plans. It has a wingspan of 95.5". The build thread can be found at RC Groups.

Maule Aircraft For Sale
Maule Aircraft For Sale

Glen Model's smallest Maule aircraft for sale has a wingspan of 74" and a length of 54". Power can come from .40 to 1.20 engines.

The mid size Maule aircraft for sale from Glens Models is giant scale with a wingspan of 92" and a length of 64". It needs from 1.20 and up engines for power.

The largest Maule for sale from Glens Models has a wingspan of 111" and a length of 77". You will need from 45 to 85 cc engines to power it.

RC Universe shows a kit for a Maule aircraft for sale from Ikon N'Wst. It is 1/4 scale and uses a four stroke engine.

You can find plans for the Maule aircraft for sale at the AMA Plans Service. It is 1/4 scale with a 92 1/2" wingspan. Recommended engine is 1.2 c.i.d. Plan no. is 356E.

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