Designed and built by F.S.Barnwell at Whitchurch in 1938, the Barnwell BSW Mk.1 was a single-seat, low wing monoplane of all wood construction, powered by a Scott Squirrel engine. The designation BSW standing for Barnwll (the constructor), Squirrel (the engine) and Whitchurch (the place).
Originally, Barnwell had meant to build the machine himself, but the vast activity of the Bristol Aeroplane Co. in connection with the R.A.F. expansion naturally meant an ever-increasing load of work on Barnwell’s shoulders, and he therefore decided to entrust the construction of the machine to a firm in Bristol.
First registered [C of R 8560] on 20.6.38 as G-AFID c/n 1 to Frank Sowter Barnwell, Alveston, near Bristol (aircraft based at Bristol (Whitchurch) Aerodrome, Bristol, Gloucestershire) it first flew on 17 July 1938.
It was written off on 2 August 1938. Shortly after taking off from Whitchurch, the engine, a Scott Squirrel, failed. Barnwell attempted to turn and return to the aerodrome. The machine stalled, crashed and killed Barnwell.
The 1931 1T was a two-place open-cockpit biplane, registered N10677 c/n 1000. First flown in September 1931, with a tail design that “prevented flat spins”.
Side seating, dual controls, 3 throttles – left, center, right – in front of seat cushion. 44″ wide inside. Luggage space under and behind the bench seat. Price includes engine. Info pack, Barnett video and Subaru video – all for $47.50 Kit Price: $32,766 Plans: $185 in 2009. BRC Coupe540 plans 2001: $225. BRC540 Coupe With a maximum airspeed of 138 mph faster than some basic helicopters the sporty “coupe” suffix is fitting. Cruising speed ranges from 85 to 105 mph, depending on altitude and load. The fully enclosed side-by-side two-seater also has dual controls, three throttles and two spaces for luggage.
The Barnett Gyroplane is a single-place craft constructed of tubular 4130 steel, fiberglass and aluminum. Its pusher prop is powered by a 65-hp Continental engine (originally a VW engine). The pilot sits inside an enclosed cabin shell. The J3-M differs from the J-4B by replacing the molded fiberglass cockpit nacelle with a flat-sided fabric-covered structure. Both models are fitted with tricycle gear and disc brakes. Welded 4130 tubing airframe and tail. Fiberglass body shell polycarbonate covered canopy. Powder coated assemblies. All four wheels sprung. Info pack, Barnett video and Subaru video – all for $47.50 Kit: $7,000 plus engine and instruments Plans: $135; 2009 Flying solo, you’ll get up to 125 mph in the single-seat J4B, but cruise is 110 mph in the tandem J4B2. J4B is available enclosed or partially enclosed, while the two-seater J4B2 is an enclosed model. The J4B plans 2001: $155
Barnett J4B2
The Barnett J4B2 is a two seat, tandem, enclosed autogyro. Welded 4130 tubing airframe and tail. Fiberglass body shell. Side pivot on canopy. All four wheels sprung. Prerotator optional. Cruising speed is 110 mph in the tandem J4B2. The J4B is available enclosed or partially enclosed, while the two-seater J4B2 is an enclosed model. J4B2 plans 2001: $185 Welded 130 tubing airframe and tail. Fiberglass body shell. Side pivot on canopy. All four wheels sprung. Prerotator optional. Info pack, Barnett video and Subaru video – all for $47.50 Kit: $7,500 plus engine and instruments. Plans $185 in 2009.
J-4 Engine: VW, 34 hp Gross Wt: 750 lb Empty Wt: 441 lb. Fuel capa¬city: 15 USG. Main rotor length: 24’. Length: 12’2”. Top speed: 115 mph. Cruise speed: 90 mph. Climb rate: 700 fpm. Ceiling: 14,000 ft. Takeoff run: 200 ft. Landing roll: 0-20 ft. Range: 250 sm.
J-4B Engine: 100 hp Continental O-200 Engine range: 65-100 hp Prop: Barnett 57.5” Precision 3 blade wood laminate. Rotor blades: Bonded and rivited aluminium 10’ x 7 3/8”. Disk span: 23 ft. Disk area: 415 sq.ft. Min speed: 30 mph. Cruise: 97 mph. Top speed: 120 mph. ROC: 1500 fpm. Fuel cap: 15 USG. Empty wt: 530 lbs. Useful load: 350 lbs. Gross wt: 850 lbs. Width: 6’8”. Height: 7’8”. Length: 12’4”.
J-4B Engine: Subaru, 100 hp. Max speed: 120 mph. Cruise speed: 97 mph. Range: 270 sm. ROC: 1500 fpm. TO dist: 150 ft. Ldg dist: 0-20 ft. Service ceiling: 15,000 ft. Fuel cap: 15 USG. Empty wt: 441 lb. Gross wt: 850 lb. Height: 7.8 ft. Length: 12.1 ft. Disk span: 23 ft. Disk area: 415 sq.ft. Seats: 1.
J4B2 Engine: Continental O-200, 100 hp. HP range: 100-150. Speed max: 112 mph. Cruise: 93 mph. Range: 199 sm. ROC: 500 fpm. Take-off dist: 300 ft. Landing dist: 0-20 ft. Service ceiling: 8,000 ft. Fuel cap: 17 USG. Weight empty: 512 lbs. Gross: 1085 lbs. Height: 8.1 ft. Length: 13.67 ft. Disk span: 25.4 ft. Disk area: 505 sq.ft. Seats: 2. Landing gear: nose wheel. Prop: Barnett 57.5” Precision 3 blade wood laminate. Rotor blades: Bonded and rivited aluminium 12’ x 7.75”.
The Barling NB-3, powered with a Velie 55 hp engine, was planned for student, transport, and passenger use. The NB-3 featured a worm type gear adjustable stabiliser. Cruise was 87 mph.