The Storm Buggy/ Flexiform Sky Sails Medium striker is a weight shift single seat/side by side two seat single engined flex wing aircraft with weight shift control. Rogallo Wing with keel pocket. Pilot suspended below wing in trike unit, using bar to control pitch and yaw/roll by altering relative positions of trike unit and wing. Wing braced from above by kingpost and cables, from below by cables; bowsprit construction with >70% double surface; pre formed ribs. Undercarriage has three wheels in tricycle formation; no suspension on any wheels. Push right go left nosewheel steering independent from yaw control. No brakes. Alumi-nium tube trike unit, with optional pod. Engine mounted below wing driving pusher propeller.

Nick Wrigley’s UAS com¬pany was one of the pioneers of triking in Britain and produced the first ever two seat trike unit, which it showed at the Welles¬bourne fly in in 1980. He called it the Storm Buggy after the Solar Wings Storm wing to which it was mated, and fitted it with a 400 cc Solo engine, direct drive and side by side seating.
Nick converted the Storm Buggy to single seat configuration and used it for various sporting events until 1981, when serious production of single seaters began, using initially the 340 Sachs engine, toothed ¬belt reduction, and his own newly developed three bladed nylon propeller. Although still called Storm Buggy, this model was suitable for a wide variety of Rogallos and by 1982 was usually found with a Flexiform Sky Sails Medium Striker wing.
Storm Buggys were later produced with Robin EC44 engines and in addition some two seaters found their way out of Nick’s workshop, using Flexiform’s Dual Striker wing.

UAS ceased trike production at the end of 1982 to concentrate on propeller design.

Single seat
Engine: Sachs 340R, 28 hp at 6000 rpm
Propeller diameter and pitch 47 x 28 inch, 1.19 x 0.71 m (three blade)
Toothed belt reduction, ratio 2.1/1
Max static thrust 200 lb, 91 kg
Power per unit area 0.14hp/sq.ft, 1.8 hp/sq.m
Fuel capacity 1.3 US gal, 1.1 Imp gal, 5.0 litre
Length overall 11.0 ft, 3.35m
Wing span 34.5ft, 10.52m
Sweepback 15 deg
Total wing area 200 sq.ft, 18.6 sq.m
Wing aspect ratio 7.5/1
Wheel track 4.6 ft, 1.30 m
Wheelbase 5.1 ft, 1.55 m
Nosewheel diameter overall 13 inch, 33 cm
Main wheels diameter overall 13 inch, 33cm
Empty weight 200 lb, 91kg
Max take off weight 378 lb, 171kg
Payload 178 lb, 81kg
Max wing loading 1.89 lb/sq.ft, 9.2 kg/sq.m
Max pow¬er loading 13.5 lb/hp, 6.1 kg/hp
Max level speed 50mph, 80kph
Economic cruising speed 40mph, 64kph
Max climb rate at sea level 700ft/min, 3.6m/s
Take off distance 100ft, 30 m
Landing distance 150 ft, 45 m
Range at average cruising speed 50 mile, 80 km

At least 12 Trike units were built by Steve Edridge at Hamilton, NZ, by 1987. A mono pole type capable of being fitted with a variey of hang glider wings.

Engine: Fuji Robin 22 hp or Fuji Robin 30 hp

Engine: Rotax 277, 28 hp
Empty wt: 88 kg
MAUW: 222 kg
Cruise: 64 kph
Range: 241 km

Circa 1998. Manufactured in the US, the Jetwing ATV is Part 103 legal.

Super Jetwing II ATV
Engine: Fuji-Robins, 50 hp
HP range: 30-50
Length: 12 ft
Wing span: 33.6 ft
Wing area: 175 sq.ft
Height: 12 ft
Empty weight: 217 lb
Gross weight: 480 lb
Fuel capacity: 5 USG
Top speed: 48 mph
Cruise: 42 mph
Range: 100 sm
Rate of climb: 1000 fpm
Takeoff dist: 100 ft
Landing dist: 100 ft
Service ceiling: 10,000 ft
Seats: 1
Landing gear: nosewheel

The low riding two seat Eagle II is constructed partially in composite, with a composite cantilever rear undercarriage.

Empty weight: 190 kg
Wing span: 10 m
Wing area: 12.9 sq.m
Fuel capacity: 55 lt
Certification: Vz
Engine: Rotax 582, 64 hp
MAUW: 450 kg
Seats: 2
Max speed: 130 kph
Cruise speed: 70-100 kph
Minimum speed: 60 kph
Climb rate: 5 m/s
Fuel consumption: 9 lt/hr
Price (1998): 35 000 DM