|First flight||ca. 1974|
The Piel CP.80 Zephir and Piel CP.801 are racing aircraft developed in France in the 1970s and marketed for homebuilding. They are compact, single-seat, single-engine monoplanes with low, cantilever wings. The pilots sit in fully enclosed cockpits and the tailwheel undercarriages are fixed. Although designed to be built of wood, the first CP.80 to fly (registered F-PTXL and named Zef) was built from composite materials by Pierre Calvel and beat even the designer's own CP.80 into the air. Calvel's CP-80 was entered in the French Formula One air races in 1976, but failed to qualify.
- Piel CP.80
- Single seat racer, typically powered by a 100 hp (75 kW) Continental O-200 for Formula One Air Racing.
- Piel CP.801
Data from Jane's All the World's Aircraft 1977–78, p.496
- Crew: One pilot
- Length: 5.30 m (17 ft 5 in)
- Wingspan: 6.0 m (19 ft 9 in)
- Height: 1.70 m (5 ft 7 in)
- Wing area: 6.2 m2 (67 ft2)
- Empty weight: 260 kg (570 lb)
- Gross weight: 380 kg (840 lb)
- Powerplant: 1 × Continental C90-8F, 67 kW (90 hp)
- Maximum speed: 310 km/h (190 mph)
- Range: 450 km (280 miles)
- Service ceiling: 6,000 m (19,700 ft)
- Rate of climb: 12.0 m/s (2,360 ft/min)
- Taylor 1989, p.725
- Jane's All the World's Aircraft 1977–78, p.496
- Markowski 1979, p.256
- Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 96. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
- Taylor 1976, p. 262
- "French Formula One". Flight International: 262–63. 31 July 1976. Retrieved 2009-01-06.
- Jane's All the World's Aircraft 1977–78. London: Jane's Publishing.
- Markowski, Mark (1979). The Encyclopedia of Homebuilt Aircraft. Blue Ridge Summit, Pennsylvania: TAB Books. ISBN 0-8306-2256-X.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. ISBN 0-7106-0710-5.