Designed by Jim Osborne & Morgan Schrack the Acroduster Too, originally called the Schrack-Stolp Super Star-duster Too, is a scaled-down 9/10 scale version of the Starduster Too and first flown in 1984. The Acroduster Too SA750 is a fully aerobatic, two-place machine stressed to plus & minus 9 G’s. It has modified symmetrical wings and is meant for minimum of 180 and up to 360 horsepower. It possible to remove the front windscreen, cover the front cockpit with a hatch cover, and add a sliding bubble canopy over the rear hole. The fuselage was also metalized back to the rear of the cockpit.

The optimum engine is the fuel-injected 200 HP Lycoming, with constant speed propeller. The prototype cruises about 160 mph, climbs 2300 fpm, and stalls at 55 mph. Although it has a comparatively sharp stall and sensitive control response, wings can be maintained in the level attitude with rudder alone or with aileron. This with stick full back by reducing power to idle and zero climb until stall is obtained.

Construction follows traditional biplane practices with steel tube structure and spruce wing spars. Ribs are plywood with cap strips.

All materials were available from Stolp Starduster Corporation, either in kit form or as raw materials.

Gallery

Engine: 200 hp
HP range: 180-300
Height: 6.8 ft
Length: 18.5 ft
Wing span: 21.4 ft
Wing area: 130 sq.ft
Weight empty: 1050 lb
Gross: 1950 lb
Fuel cap: 35 USG
Speed max: 185 mph
Cruise: 155 mph
Stall: 55 mph
ROC: 2300 fpm
Landing dist: 1200 ft
Service ceiling: 16,000 ft
Seats: 2
Landing gear: tail wheel

Engine: 200 hp
HP range: 180-300
Height: 6.8 ft
Length: 18.5 ft
Wing span: 21.4 ft
Wing area: 130 sq.ft
Weight empty: 1050 lb
Gross: 1950 lb
Fuel cap: 35 USG
Speed max: 185 mph
Cruise: 155 mph
Stall: 55 mph
ROC: 2300 fpm
Landing dist: 1200 ft
Service ceiling: 16,000 ft
Seats: 2
Landing gear: tail wheel

First introduced in 1973, the SA-700 Acroduster is a single-seat, fully aerobatic biplane suitable for engines in the 125-200 hp range. Its fuselage is an all-metal structure constructed from light alloy, and its wings are conventional two-spar structures with spruce spars, plywood ribs and fabric covering. A unique feature of the Acroduster 1 is that when the stick is pulled back, all four ailerons are raised slightly to help maintain aileron control when the airplane is stalled in a normal attitude. The opposite happens when the stick is pushed forward to aid control when the airplane is in an inverted stall.

The Acroduster uses com¬pletely separate wing panels pinned in the center with a pivot type joint and tied to the fuselage with an open stance ca¬bane that has four mounting points on the wings.

They are always building from a kit because Osborne won’t sell a set of plans without the com¬plete materials kit to keep them compa¬ny. The kit is literally a complete, but disassembled, airplane that needs only the engine and propeller. Even the motor mount and gas tank are completely fin¬ished and ready to nail in place.

Engine: Lycoming, 200 hp
Height: 6.25 ft
Length: 15.75 ft
Wing span: 19 ft
Wing area: 105 sq.ft
Weight empty: 740 lb
Gross: 1190 lb
Aerobatic Weight 1050 lb
Fuel cap: 25 USG
Wing Loading 10 lb/sq ft
Power Loading 5.25 lb/hp
Speed max: 180 mph
Cruise: 165 mph
Stall: 70 mph
ROC: 3000 fpm
Service ceiling: 12,000 ft
Seats: 1
Landing gear: tail wheel

Aerovant Aircraft Corp Acroduster I
Engine: Lycoming, 200 hp
Height: 6.3 ft
Length: 15.8 ft
Wing span: 19 ft
Wing area: 105 sq.ft
Fuel capacity: 25 USG
Empty weight: 740 lb
Gross weight: 1190 lb
Top speed: 180 mph
Cruise: 165 mph
Rate of climb: 3000 fpm
Service ceiling: 12,000 ft
Seats: 1
Landing gear: tailwheel