DAVIS DA-5A HOMEBUILT AIRPLANE PLANS ON CD PLUS EXTRAS.
The plans come in pdf (Adobe Acrobat) files.
Extras include info on building your own airstrip, liability checklist release form (when selling your airplane), airworthiness certification, etc. Plus metric to imperial(vice versa) software. Building your own windtunnel... too much to list.
SPECIFICATIONS
Crew: One pilot
Length: 15 ft 9 in (4.80 m)
Wingspan: 15 ft 7 in (4.76 m)
Height: 4 ft 5 in (1.35 m)
Wing area: 57 ft2 (5.3 m2)
Empty weight: 460 lb (208 kg)
Gross weight: 775 lb (351 kg)
Powerplant: 1 × Continental A65 horizontally-opposed four-cylinder piston engine, 65 hp (49 kW)
Performance:
Maximum speed: 160 mph (257 km/h)
Range: 450 miles (725 km)
Service ceiling: 14,500 ft (4,420 m)