American Light Aircraft Prototypes & Projects

[hesham]

From Air Pictorial 1961,

hete is an Info about Leasair STOL utility aircraft,which could accommodated
six-passenger or 1,200 1b of freight,powered by single engine,I don't know if
it was built or remained a Project ?.

 

[hesham]

From Air Pictorial 1961,

what was Seaflight Corporation Seaplane ?.

 

[Apophenia]

what was Seaflight Corporation Seaplane ?.

George A. Spratt's 1959 model 106 (c/n 1) 'Controlwing'-type light flying boat powered by a modified 60 hp Mercury outboard motor (although Flightaware claims a 100 hp Continental 0-200 series HO4 was used).

The Spratt 106 was originally registered N910Z. It became N3915A once owned by the Seaflight Corporation. Seaflight was based near Philidelphia - either in Newtown Square or Paoli ... depending upon the source.

 

[dan_inbox]

The Spratt 106 was originally registered N910Z. I

Here is the only photo I know of it. Any others, please post.

And for once I remember my source (evrything happens!): SOHforum, posted by @giruXX in 2016.

 

[Retrofit]

what was Seaflight Corporation Seaplane ?.

George A. Spratt's 1959 model 106 (c/n 1) 'Controlwing'-type light flying boat powered by a modified 60 hp Mercury outboard motor (although Flightaware claims a 100 hp Continental 0-200 series HO4 was used).

The Spratt 106 was originally registered N910Z. It became N3915A once owned by the Seaflight Corporation. Seaflight was based near Philidelphia - either in Newtown Square or Paoli ... depending upon the source.

Some more detail on the Spratt Controlwing:
"Aerofiles" website mentions:
Controlwing 1939 = 2pOhwMFb; 65hp Lycoming pusher. Further development of Spratt's controllable-wing theory (SEE Bendix Controlwing) with wing mounted over a twin-tailed, boat-shaped fuselage (it was licensed as a boat!). Engine mounted in the bow, driving prop by a long shaft. 1947 version had 65hp Continental mounted aft of cockpit [N3915A]. Spratt's project continued well into the 1970s with several successful flying boats. Plans marketed to home-builders; 80 sets sold by 1982.

Controlwing 105 1973 = 2pChwM; 60ci Mercury marine engine; span: 22'0" length 12'6". Landplane version of 107. [N49888]. Spratt's continuance of design numbers from his days at Convair sometimes lead to confusion of this plane with Convair-Stinson 106 Skycoach.

Controlwing 106 1964 = 2pOhwMFb. POP: 1 [N910Z].

Controlwing 107 c.1975 = 2pOhwMFb; modified 80hp Mercury marine engine; span: 24'0" length: 17'0" load: 500#.

From "Sport Aviation" issues June to August 1974 and "Les Cahiers du RSA" n°80 January-february 1976, we can find the following photos and drawings:

 

[hesham]

From JAWA 1982-1983.