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The Sequoia Falco is an Italian-designed lightweight 2-seater aerobatic aircraft.[2]

Sequoia Falco F8L
1993 Sequoia Falco F8L
Role	Homebuilt aircraft Type of aircraft
National origin	Italy
Manufacturer	Sequoia Aircraft Company
Designer	Stelio Frati
First flight	1955
Status	Production completed (2014)
Number built	90 (2011)[1]
Variants	Sequoia 300, Sequoia 300, Sequoia Kodiak

Design and development

The aircraft was designed by the renowned Italian designer Stelio Frati[3] in 1955, with the prototype, powered by a 90 hp (67 kW) Continental C-90 engine, flying for the first time on 15 June 1955.[4] The prototype was soon re-engined with a 135 hp (101 kW) Lycoming O-290-D2B, forming the basis for the initial production batch.[4] It was originally built in Italy by Aviamilano then Aeromere and later Laverda.

The aircraft is single-engined, propeller driven and designed for private and general aviation use.[1][3] The Falco was sold in kit or plans form for amateur construction by the Sequoia Aircraft Company of Richmond, Virginia until its closure in 2014.[5]

The design was adopted in the US in the 1980s and converted to kit form. The aircraft is widely considered to be one of the best handling, strongest, and most aesthetically pleasing designs ever made available to home builders.[3]

Performance includes a 175 knot cruise speed and 6g aerobatic capability.[3]

The Sequoia Falco F8L is constructed of spruce and typically Finnish birch plywood. The structure is built from laminated spruce bulkheads and the birch plywood is used for the skin.[6] The plywood is often softened with hot steam, formed over the various structures and glued in place. The aircraft is rated for 6g positive and 3g negative.

Reviewers Roy Beisswenger and Marino Boric described the design in a 2015 review as "a complex all-wooden construction in spruce and plywood and is therefore time-consuming to build. But the results in terms of weight and speed are remarkable., so much so that the Falco is considered a classic, with outstanding performance and handling."[7]

Variants

F.8L Series I

Initial production model powered by 101 kW (135 hp) Lycoming engine. Ten built by Aviamilano.[8]

F.8L Series II

Improved model built by Aviamilano, with 112 kW (150 hp) engine.[8] Twenty built.[9]

F.8L America

Modified version of Series II built by Aeromere in conformance with US airworthiness requirements.[8]

Super Falco Series IV

Similar to America, but with more powerful engine and constant speed propeller. Built by Laverda.[8]

Sequoia Falco

Similar to the production aircraft but re-designed for homebuilding from kits or plans, by Alfred Scott of Sequoia Aircraft Company and David Thurston of Lake Buccaneer fame.

Specifications (Laverda Super Falco Series IV)

Data from Jane's All The World's Aircraft 1965-66 [10]

General characteristics

• Crew: one
• Capacity: one passenger
• Length: 6.50 m (21 ft 4 in)
• Wingspan: 8.00 m (26 ft 3 in)
• Height: 2.27 m (7 ft 5 in)
• Wing area: 10.0 m² (108 sq ft)
• Aspect ratio: 6.4:1
• Airfoil: NACA 64213
• Empty weight: 550 kg (1,213 lb)
• Max takeoff weight: 820 kg (1,808 lb)
• Fuel capacity: 120 L (32 US gal; 26 imp gal)
• Powerplant: 1 × Lycoming O-320-B1A air-cooled flat-four engine, 120 kW (160 hp)
• Propellers: 2-bladed Hartzell fixed-pitch propeller, 1.75 m (5 ft 9 in) diameter

Performance

• Maximum speed: 325 km/h (202 mph, 175 kn) at sea level
• Cruise speed: 250 km/h (160 mph, 130 kn) (econ. cruise)
• Stall speed: 98 km/h (61 mph, 53 kn) (30% flaps)
• Never exceed speed: 385 km/h (239 mph, 208 kn)
• Range: 1,400 km (870 mi, 760 nmi)
• Service ceiling: 6,000 m (19,700 ft)
• Rate of climb: 5.00 m/s (984 ft/min)

See also

• Aermacchi SF.260 (military trainer designed by Frati)
• PAC CT/4 (Pacific Aerospace Limited)

Notes

References

• "Aircraft of European Civil Registers: 3 : The designs of Stelio Frati". Archive. No. 4. Air-Britain. 1982. pp. 67–74. ISSN 0262-4923.
• Taylor, John W. R. (1965). Jane's All The World's Aircraft 1965-66. London: Samson Low, Marston.
• Taylor, John W. R. (1968). Jane's All The World's Aircraft 1968-69. London: Samson Low, Marston & Company, Ltd.
• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.

External links

• Sequoia's site
• Falco Kit Company Article

На других языках

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- [en] Sequoia Falco

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[fr] Aviamilano F.8L Falco

L'Aviamilano F.8L Falco est un avion biplace de sport et de tourisme produit en petite série en Italie durant les années 1960 puis adapté à la construction en kit aux États-Unis. Cet appareil dessiné par l’ingénieur Stelio Frati a servi de base au développement du SIAI Marchetti SF.260.

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[it] Aviamilano F.8 Falco

L'Aviamilano F.8L Falco è un aereo da turismo sportivo biposto ad ala bassa progettato su iniziativa personale dall'ingegnere aeronautico Stelio Frati e prodotto in piccola serie, nei disegni originali, dall'azienda aeronautica italiana Aviamilano Costruzioni Aeronautiche negli anni sessanta. In seguito, il progetto venne prima rivisto e, in funzione di una commercializzazione sul mercato dell'aviazione generale statunitense, adattato alle normative FAA, quindi riprogettato per essere fornito come kit di autocostruzione negli Stati Uniti d'America.

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