US Aviation Cumulus
The Cumulus has a foldable cantilever wing in riveted sheet dural, dacron covered, and a welded steel spaceframe fuselage and a composite cockpit.
In 1998 the Cumulus retured to the market after and inflight failure of the spar involving the designer.
An Ultralight / Microlight Motorglider Construction is steel and fabric, first flown in 1995. Was available as a kit manufactured by AeroDreams, for $9995. 2009 Price: 7995 US$ airframe only.
Engine: Rotax 277, 28 hp
HP range: 28-35
Height: 4.5 ft
Length: 20.5 ft
Wing span: 43 ft
Wing area: 141 sq.ft
Fuel cap: 5 USG
Weight empty: 320 lbs
Gross: 560 lbs
Speed max: 90 mph
Cruise: 82 mph
Range: 275 sm
Stall: 27 mph
ROC: 600 fpm
Take-off dist: 120 ft
Landing dist: 170 ft
Service ceiling: 15,000 ft
Seats: 1
Landing gear: tail wheel
Glide: 20:1@ 43 mph
Sink: 195 fpm @ 30 mph
Fuel: 1 USG/h.
Engine: Rotax 447, 28 hp
HP range: 28-40
Height: 4.5 ft
Length: 20.5 ft
Wing span: 43 ft
Wing area: 140 sq.ft
Fuel capacity: 5 USG
Empty weight: 163 kg / 360 lbs
Gross weight: 290 kg / 640 lb
Top speed: 90 mph
Cruise: 56 kt / 65 mph / 105 kmh
Stall: 29 mph
VNE: 78 kt / 90 mph / 145 kmh
Aspect ratio: 13-1 sm
L/D: 20-1 fpm
Landing dist: 250 ft
Service ceiling: 15,000 ft
Seats: 1
Landing gear: tailwheel
ROC: 800 ft/min / 4 m/s
Range: 275 sm
Glide Ratio: 20.1
Take-off distance: 170 ft / 52 m
LSA: yes
Engine: Rotax 447, 42 hp
Wing span: 13.1 m
Wing area: 12.7 sq.m
MAUW: 291 kg
Empty weight: 164 kg
Fuel capacity: 19 lt
Max speed: 144 kph
Cruise speed: 97 kph
Minimum speed: 55 kph
Climb rate: 5 m/s
Seats: 1
Fuel consumption: 6 lt/hr
Kit price (1998): $7995
