Designed by John Rutter, Tubby, at 40” span and weighing around 2.1/2 lbs is an aerobatic model for 0.15 to 0.21 engines with easy interchange of engines and rough field use in mind. It can be built with fixed undercarriage, retracts or no undercarriage at all depending on the field you fly from.
MODEL SPECIFICATIONS:
WINGSPAN: 40"
WING AREA: 360 sq in
WING LOADING: 17 oz/sq ft
LENGTH: 43"
WEIGHT: 42 oz
RADIO FUNCTIONS: Throttle, Ailerons, Elevator, Rudder, Retracts (optional)
IC POWER
ENGINE RANGE: .15 - .21 cu in (2.5 – 3.2 cc)
ENGINES USED: NV 0.15, HB 0.21, SC 0.21
PROP: APC 8 x 4 to APC 9 x 6 depending on engine used