Dyke Delta JD II

The Delta has retractable landing gear and the wings fold up and over the fuselage for easy towing—no trailer required. The engine is a 180 hp Lycoming O-360. Cruise speed is about 170 mph. The windshield extends all the way up over the pilot's head which affords excellent visibility. Airframe construction is largely welded steel truss with a fibreglass skin attached with flush blind rivets. Notice the shape of the upper surface of the fuselage—the fuselage provides significant lift! More than 400 Dyke Delta plans have been sold and there are about 45 flying today with another 15 or so still in active (or semi-active) construction.

specifications
 
powerplant
propeller
length
height
wing span
wing area
seats
empty weight
useful load
gross weight
fuel capacity
range
Lyc. 0-360 HP Range180/160-200
x
19ft
5.5ft
22.2ft
178sq. ft
4
1080lb
x

1950lb
47gal
750n.m

performance

takeoff distance, ground roll
rate of climb
max speed
cruise speed
landing distance, ground roll
service ceiling
700ft
1700fpm
210mph
180mph
1000ft
14,500ft

limiting and recommended speeds

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

All specifications are based on manufacturer's calculations