Maule M-9

Piston single engine • High Wing • Conventional gear

Range Map

Origin:

• nm at current load

• click map to move • two fingers to move map

Payload vs. Range

Configure weights

Occupants

lb + lbs / pax

Select payload

gal

Fuel on board

lbs

Extra weight

Range

Available Range / nm

Mission capable. Aircraft can handle the current load with full fuel tanks.

Fuel capacity reduced by gallons ( gal usable for nm range).

Over max gross weight. Reduce payload by lbs to safely operate this aircraft.

Extra weight is the additional payload available with your selected passengers.

Mission Profile

In production

137

KTAS

Cruise Speed

—

Max Range

20,000

Service Ceiling

Occupants

842

lbs

Wet Payload

Endorsements & ratings:

High-Performance
Tailwheel

Estimated Ownership Costs

Create a free account to view or request ownership cost data.

About the Maule M-9

Type certificated 2012

Overview

The Maule M-9-235 is the largest and newest member of Maule’s STOL taildragger line, a five-seat high-wing utility single built to order at Moultrie, Georgia. Type-certified in 2012, it takes the stretched M-7 cabin and adds structural reinforcement and spring-aluminum main gear, on a fuel-injected 235 hp Lycoming IO-540 turning a McCauley constant-speed propeller. At 2,800 lb gross it is the heaviest Maule certified on wheels, trading a little of the lighter models’ short-field edge for more load.

Like the rest of the line it is a welded steel-tube and fabric airframe built for rough, unimproved strips, clearing a 50 ft obstacle in under 800 ft. Maule builds the M-9 series in small numbers to order, so a new example is a made-to-order proposition and most trading happens used. It suits the backcountry or utility operator who wants the most payload Maule offers in a STOL taildragger, and who will accept the fabric upkeep and thin new-build supply that come with it.

Key Features for GA Buyers

Five-seat cabin. The stretched fuselage and 2,800 lb gross give the M-9 a 1,100 lb useful load, more than the M-4-220C or MX-7-180, with a fifth seat option.
Short-field STOL. Clears a 50 ft obstacle in about 790 ft and lands over the same obstacle in about 900 ft, opening backcountry strips a fixed-gear tourer cannot use.
Fuel-injected power. The 235 hp Lycoming IO-540 adds fuel injection over the carbureted M-7, for smoother hot-and-high starting and metering.
Spring-aluminum gear. The M-9 uses spring-aluminum main gear rather than the M-7-235B’s oleo struts, a simpler, lower-maintenance leg.
Rugged, field-repairable structure. A welded steel-tube fuselage under fabric tolerates rough off-airport use and can be repaired in the field.

Trade-offs

Heaviest, not the shortest-field. At 2,800 lb gross the M-9 needs a little more runway than the lighter M-5 or MX-7, trading ultimate STOL numbers for load.
Fabric maintenance. The fabric-covered airframe needs hangar storage or more attentive upkeep than an all-metal aircraft to resist UV degradation.
Tailwheel and high-performance. Requires a tailwheel endorsement and, at 235 hp, a high-performance endorsement; the taildragger needs active rudder on the ground.
Built to order, thin new supply. Maule’s low, made-to-order output means new examples carry lead time; most buyers shop the used market.

Technical Specifications

Dimensions & Weights

Height: 6.3 ft
Length: 23.7 ft
Parking area (ft²): 1231.23 ft²

Max Takeoff Weight: 2,800 lbs
Useful Load: 1,100 lbs
Fuel Capacity: 43 gal

Performance

Cruise Speed: 137 KTAS
Never-Exceed (V_NE): Source: FAA Type Certificate Data Sheet 156 KIAS
Max Structural Cruise (V_NO): Source: FAA Type Certificate Data Sheet 126 KIAS
Stall, Clean (V_S₁): 53 KIAS
Service Ceiling: 20,000 ft
Rate of Climb: 800 fpm
Takeoff over 50 ft obstacle: 791 ft
Landing ground roll: 250 ft

Engine

Sources

Where the figures on this page come from. Maule M-9 specifications are traced to published references; estimated values are flagged inline next to the figure.