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Model Engine                      Hirth

No. Cylinders                         1

Displacement                     275 CC

Horsepower                      28 H.P.

Recommended T.B.O.              300 Hrs

Propeller                          Wood

Length                            19 ft

Height                       7 ft 10 in

Wingspan                     26 ft 6 in

Wing Area                    151 sq. ft

Wing Loading                 5.95 lb/ft

Seats                                 1

Empty Weight                    252 lbs

Useful Load                     273 lbs

Payload W/Full Fuel             237 lbs

Max Take-off Weight             525 lbs

Fuel Capacity (Standard)          5 gal

Structural rating               +4 -2 G


Takeoff Distance, Ground Roll     55 ft

Takeoff Distance, 50 Ft Obstacle 425 ft

Rate of Climb                   355 fpm

Max Level Speed, Sea Level       42 mph

Landing Distance, 50 Ft Obstacle 200 ft

Landing Distance, Ground Roll     55 ft

Minimum Sink Rate               375 fpm

Glide Ratio                    5.95 : 1


At 65% Power (rpm/mph)          5300/30

At 75% Power (rpm/mph)          5600/38

At 100% Power (rpm/mph)         6200/42


At 65% Power (gph/mi)            3.2/47

At 75% Power (gph/mi)            3.9/49

At 100% Power (gph/mi)           4.8/44


Vx (Best angle of climb)         22 mph

Vy (Best rate of climb)          26 mph

Va (Design maneuvering)          38 mph

Vne (Never Exceed)               63 mph

Vs1 (Stall, Power off)           21 mph

Landing Approach Speed           26 mph

Suggested Retail Price     (Call For Quote)


Hirth Power plant Engine,


15" Main gear tires,

13" Nose wheel,

Steel main wheel axle stubs,

Side mounted controls,

Aluminum pilot roll cage and nose struts,

Aerodynamic lift and jury struts with adjustable fittings, High lift airfoil,

Center hard-shell gap cover,

5 Gal Fuel Cell

M-Squared Breese X/L Single Seat with single surface wings and a HIRTH engine