The Procaer F.15 ''Picchio'' (Italian: "Woodpecker") is an Italian-designed light utility aircraft built by
Procaer (PROgetti Costruzioni AERonautiche).
Design
The Picchio was developed in Italy in the late 1950s as a further development of
Stelio Frati
Stelio Frati (born in Milan Italy in 1919, died 14 May 2010) was an Italian mechanical engineer and aeroplane designer. He graduated from the Politecnico of Milan as a mechanical engineer in 1943, participating in the design of the Aeronautica Lom ...
's
Falco and
Nibbio designs. Like its predecessors, the Picchio was a conventional low-wing
cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cant ...
monoplane of exceptionally clean lines, with retractable tricycle undercarriage. Early versions of the Picchio shared the same wooden construction as the earlier designs, but had a thin aluminium skin over the top of their plywood skins. The F.15E and F.15F, however, were all-metal.
Production
Production of the early, wooden Picchios was carried out by
Procaer in
Milan
Milan ( , , Lombard language, Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the List of cities in Italy, second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4  ...
, but in the mid 1960s, Frati established
General Avia
General Avia is the Italian aircraft manufacturing company which produced Stelio Frati's prototype designs as well as commercial production of some designs.
Today the official name is "GeneralAvia Aerospace Technology Company"
Aircraft
* Procae ...
as his own factory to build his designs, commencing with the F.15E. Only a few examples were built, however, and the design lay dormant until revived by an
Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
n company,
HOAC
Diamond Aircraft Industries is a Chinese-owned manufacturer of general aviation aircraft and motor gliders, based in Austria. It is the third largest manufacturer of aircraft for the general aviation sector, and has manufacturing facilitie ...
in the mid 1990s. HOAC arranged to have the two-seat F.15F model built at the
JSC Sokol
JSC may refer to:
* Jane Street Capital, a global proprietary trading firm
* Johnson State College, one of the Vermont State Colleges, and located at Johnson, Vermont, United States
* Jeffree Star Cosmetics, an American cosmetics franchise
* Join ...
plant in
Niznij Novgorod
Nizhny Novgorod ( ; rus, links=no, Нижний Новгород, a=Ru-Nizhny Novgorod.ogg, p=ˈnʲiʐnʲɪj ˈnovɡərət ), colloquially shortened to Nizhny, from the 13th to the 17th century Novgorod of the Lower Land, formerly known as Gork ...
, but ran out of money, leaving Sokol with unsold airframes in various states of completion.
Operational history
The Picchio was primarily intended for operation by private pilot owners and the design was exported to several European countries as well as being purchased by Italian individuals. Several are still airworthy (2012).
Variants
* F.15 - prototype and initial production with
Lycoming O-320
The Lycoming O-320 is a large family of naturally aspirated, air-cooled, four-cylinder, direct-drive engines produced by Lycoming Engines. They are commonly used on light aircraft such as the Cessna 172 and Piper Cherokee. Different variants ...
engine and three seats. 5 built.
* F.15A - revised production version with
Lycoming O-360
The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between 145 and 225 horsepower (109 to 168 kW), with the basic O-360 produci ...
engine and four seats. 10 built by
Procaer.

* F.15B - similar to F.15A but with larger-span wings and fuel tanks relocated from fuselage to wings (20 built by Procaer).
* F.15C - version with
Continental IO-470-E engine and tip tanks.
One built.
* F.15D - proposed version similar to F.15B with
Franklin
Franklin may refer to:
People
* Franklin (given name)
* Franklin (surname)
* Franklin (class), a member of a historical English social class
Places Australia
* Franklin, Tasmania, a township
* Division of Franklin, federal electoral di ...
engine. Not built.
* F.15E Picchio - Four-seat, all metal aircraft with fuel in wing and wing-tip tanks and powered by
Continental IO-520
The Continental O-520 is a six-cylinder, horizontally opposed aircraft engine produced by Teledyne Continental Motors. First run in 1963 as a development of the IO-346, it has been produced in versions incorporating fuel injection (IO-520), tu ...
K engine. First prototype flown 21 December 1968 and second aircraft flown 1976.
* F.15F - All metal, four-seat derivative of F15.E with bubble canopy and powered by IO-360 engine. One built by
General Avia
General Avia is the Italian aircraft manufacturing company which produced Stelio Frati's prototype designs as well as commercial production of some designs.
Today the official name is "GeneralAvia Aerospace Technology Company"
Aircraft
* Procae ...
, flying 20 October 1977.
** F.15F Excalibur - F.15F built by
JSC Sokol
JSC may refer to:
* Jane Street Capital, a global proprietary trading firm
* Johnson State College, one of the Vermont State Colleges, and located at Johnson, Vermont, United States
* Jeffree Star Cosmetics, an American cosmetics franchise
* Join ...
at
Nizhny Novgorod
Nizhny Novgorod ( ; rus, links=no, Нижний Новгород, a=Ru-Nizhny Novgorod.ogg, p=ˈnʲiʐnʲɪj ˈnovɡərət ), colloquially shortened to Nizhny, from the 13th to the 17th century Novgorod of the Lower Land, formerly known as Gork ...
, Russia for assembly by Eurospace in Italy. Pre-production aircraft assembled by
HOAC
Diamond Aircraft Industries is a Chinese-owned manufacturer of general aviation aircraft and motor gliders, based in Austria. It is the third largest manufacturer of aircraft for the general aviation sector, and has manufacturing facilitie ...
in Austria and flown in October 1994. Orders for 33 aircraft at end of 1995, with about 100 in various stages of construction or assembly at that time.
Specifications (F.15B)
References
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Further reading
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{{Frati aircraft
Procaer aircraft
1950s Italian civil utility aircraft
Single-engined tractor aircraft
Low-wing aircraft
General Avia aircraft
Aircraft first flown in 1959