The aircraft was a design of Lee Wainscott and appeared during the 1930s and the construction was started by a gentleman named Case. Initial plans called for the use of a (modified) Heath Henderson motorcycle engine, but by the time the aircraft was completed a 35hp Lawrence radial was installed. The aircraft was rumoured to have a movable (pivoting) lower wing for the lateral control thus eliminating the need of ailerons.

For several reasons the aircraft never flew prior to WW II and it was later acquired by brothers P.E (Pat) and R.L. Day who made several modifications (the lower wing became fixed and ailerons were added to the upper wing) and also installed a 65 hp Lycoming O-145-B2 engine. The aircraft finally first flew during 1962, registered N72L, and in 1969 it was sold to Howard C. Cagle. It was reported that the aircraft flew no more than 5 times in total and then went into storage.

Over the years this extremely small aircraft was reported under various names including Case Special and Wainscott Li’l Twister.

Span: 13 ft 4 in (4.06 m)
Length: 12 ft 3 in (3.73 m)
Height: 4 ft 4 in (1.32 m)
Max speed: 155 mph (249 kmh)
Cruise speed: 140 mph (225 kmh)

The Waco SFB cabin biplane powered by a 300hp P&W Wasp Jr was planned for mail or passenger use but no actual production.

The 1936 four place cabin, sesqui-wing biplane Waco SQC-6 qas to be powered by a 300hp P&W Wasp Jr but there is no record of actual production.

Waco historians claim the 1932 three place open cockpit TBF 160hp Kinner R-5 model never was in company records. No proof of actual production.

The Waco UCF open cockpit biplane was only a planned project and was produced as UBF.

The UGC-7 and VGC-7 4-5 place cabin, sesqui-wing biplane were planned with a 210hp Continental R-670 powering the UGC-7 and a 240hp W-670 powering the VGC-7, but there is no record of actual production.

UCF
Engine: 210hp Continental R-670
Wingspan: 29’7″
Length: 20’6″
Useful load: 924 lb
Max speed: 132 mph
Cruise speed: 116 mph
Stall: 42 mph
Price: $5,025
Seats: 3

A Waco UDC three place open cockpit biplane was priced at $5,885-5,995 but there is no record of actual production.

UDC
Engine: 210hp Continental R-670
Wingspan: 33’0″
Length: 24’10”
Useful load: 1038 b
Max speed: 130 mph
Cruise speed: 116 mph
Stall: 49 mph

The 1932 Waco OBF was a four place, open cockpit biplane, powered by a 210hp Kinner C-5.

One Waco ENF Special was built in 1932 (ATC 2-430). A three seater, it was converted by Martin Co with a 120hp Chevrolet (Martin) D-333 engine. It was later restored in Ohio with a Menasco C-4 engine.

The 1932 Waco BDC was a four place cabin biplane. Priced at $7,295, there is no record of actual production.

Engine: 165hp Wright R-540
Wingspan: 33’0″
Length: 25’1″
Usefulload: 1662 lb
Max speed: 120 mph
Cruise speed: 100 mph
Stall: 49 mph
Range: 450 mi
Seats: 4

The Waco CQC-6 of 1936 was a 4-5 place cabin sesqui-wing biplane. No record of actual production.

Engine 285hp Wright R-760
Wingspan: 35’0″
Length: 26’2″
Useul load: 1425 lb
Max speed: 170 mph
Cruise speed: 151 mph
Stall: 55 mph
Range: 580 mi