
The 1913 Cooper biplane was designed and built by G. T. Cooper in the UK
Span: 30′

The 1913 Cooper biplane was designed and built by G. T. Cooper in the UK
Span: 30′
Newspaper articles show this plane as being a design and partial assembly of Robert L Hall of the Granville Brothers Co, then was completed by students at the Baltrun flight school and apparently flown, piloted by Tony Israelian.
A two-place open cockpit biplane, registered N13230, it was powered by a 60hp LeBlond engine.
It was destroyed in a fire along with several other planes at the airport in 1932.
Looking a bit like a compact Waco UPF, it apparently influenced the subsequent Hall Bulldog also constructed by this same group.
(Joseph) Baltrun Flying Service
Springfield MA.
USA
Built the Baltrun 1931 biplane
(W J) Ballou-(Walter L) Whitehair Aeroplane Co
Portland OR.
USA
In 1929 built an aircraft of some kind.

The Shenyang HU-1 Seagull is a Chinese powered glider built by the Shenyang Sailplane Factory at Shenyang.
The Seagull is a two-seat powered glider made from aluminium alloy with parts also made of wood, glassfibre and fabric. It has an overwing mounted 116 hp (87 kW) Lycoming O-235-N2A engine.
Wing Span: 17 m
Length: 7.6 m
Height: 1.7 m
MTOW: 1000 kg
Maximum Range: 480 Nm
Take Off Distance: 180 m
Absolute Ceiling: 15,000 ft
Optimum Ceiling: 10,000 ft
Maximum Speed: 121 kts
Optimum Speed: 86 kts
Maximum Climb Rate: 780 ft/min
Seats: 2
The 1977 Ball-Bartoe JW-1 Jetwing research aircraft was a single-place mid wing monoplane, registered NX27BB, first flew on 11 July 1977, piloted by Herman “Fish” Salmon.
The Jetwing features retractable undercarriage.
Engine: P&W JT15D-1, 2200 lb
Wingspan: 21’9″
Length: 28’7″
Useful load: 820 lb
Max speed: 399 mph
Stall: 68 mph
Seats: 1
The Ball S-T two-place open cockpit biplane was built by Clifford Ball, Bettis Field, McKeesport PA., in 1928.
Only one was built, registered N826E c/n 1, it was sold on 3 November 1930 to Pennsylvania Air Lines as a student trainer. The registration expired on 5 December 1932.
Engine: Velie M-5, later Lambert
Seats: 2
Bettis Field,
McKeesport PA.
USA
Built the Ball S-T in 1928.
The 1960 Bal-Aire BA single-place open cockpit biplane was designed and built by UAL pilot Ballard Leins over a two-year period.
With wooden wings, steel tube fuselage and registered N4951E, it cost $2,100.
Engine: 150hp Franklin 6A4-150
Wingspan: 21’0″
Length: 17’6″
Useful load: 300 lb
Max speed: 125 mph
Cruise: 110 mph
Stall: 55 mph
Seats: 1
Ballard Leins
Tinley Park IL.
USA
Built the Bal-Aire BA in 1960.