Smythe Sindwinder

The Sidewinder was the 1969 Outstanding Design at the 17th Sport Aviation Convention at Rockford, Illinois. It was designed by Jerry Smyth, flown and performed all the basic aerobatic manoeuvres. It is stressed to 9 g's "ultimate". It is rather unique in an all metal airplane. The Sidewinder has a steel tube fuselage with aluminium skin and all aluminium wings. It is a side-by-side two seater that was designed to use engines from 90 - 180 Hp. that weigh up to 310 lbs. The Sidewinder uses a sliding canopy, tapered steel rod landing gear, stabilators and fibreglass cowling. There are some questions as to the handling of this aircraft.

specifications
 
powerplant
propeller
length
height
wing span
wing area
seats
empty weight
useful load
gross weight
fuel capacity
range
125 Hp. Engine
x
x
x
24' 10"
96 sq. ft.
x
867 lbs.
583 lbs.
1450 lbs.
17.5 gal.
x

performance

takeoff distance, ground roll
rate of climb
max speed
cruise speed
landing distance, ground roll
service ceiling
x
900-1500 fpm
175 mph
160 mph
x
x

limiting and recommended speeds

design manoeuvring speed (Va)
never exceed speed (Vne)
stall, power off (Vsl)
landing approach speed
x
x
55 mph
x

All specifications are based on manufacturer's calculations