X-Air X-Air

The French designed, Indian manufactured X-Air is a fully featured, affordable light aircraft, developed over several years and there are over 1,000 flying world-wide in 2014. The X-air is a high wing, 2 seat, side by side, conventionally controlled, microlight/ultralight aircraft, with full dual controls, toe brakes, and elevator trim. The fuel tank capacity of just over 59 liters gives a comfortable endurance of at least 3 hours at normal cruise with a 1/2 hour reserve and there was an optional 80 L fuel tank. The fuel tanks are filled at the side of the fuselage. The X-air’s layout consists of a high mounted tractor engine set up, tricycle undercarriage, and a maximum all up weight of 450kg.

The X-air is manufactured in India, and was supplied in kit form, which comes very complete. Only the choice of Engine/Prop & Instruments are required to finish it, ready for flight.

Nearly all of the exposed tubing, comes White Epoxy painted for long life, and some components come pre-assembled, e.g. Tailplanes & Elevators, and all the required nuts & bolts are in their relevant place’s, to speed up assembly.

The X-air is fitted with full Dual controls, i.e. two sticks, two throttles. Both the pilot and the passenger have their own control stick which is located between the legs. The advantage of the left seat is the use of the independant toe operated drumbrakes, fitted to the top of the Rudder pedals.

The standard and flap model X-AIR were available with three engines from Rotax-Bombardier of Austria, the Australian produced Jabiru engine and the HKS from Japan. Rotax options being the 52 HP “503” or the 65 HP “582” and the 80HP “912” with carbon fiber Brolga ground adjustable props.

1998

The recommended engine selection is the Rotax 582. The 582 engine bolts to the X-Air without modification, it is economical, has good performance (up to 1200 ft/min climb one up, 900 to 1000 ft/min climb two up). The Rotax 503 producing 52 HP offers good performance and economy but with two heavy pilots the climb performance is about 600 ft/min. The Jabiru 2.2 and Rotax 912 engines both need to modify the engine mounts.

The seats are fitted with headrests. The cockpit floor is solid wood, lexan windscreen, and there is an optional door kit. Each wheel has its own shock absorbing system. The suspension design is similar to shock absorbers on a motorcycle and can handle all the bumps and potholes on grass and bush strips with ease. The front wheel has dual shock suspension with trailing link design steering; the trailing link design straightens up immediately on touch down, so even landing in cross wind is relatively easy in the X-Air. Steerable nose wheel, linked to rudder pedals. The shock absorber design used on the X-Air offers rebound dampening. The undercarriage is rated to 9 g’s.

The X-Air can be pulled down in about 15 minutes. Firstly, the Velcro attached wing nappy is removed, the wing skin tensioning belts are released, the aileron cable is detached and with the assistance of a helper the wing struts are removed and finally, the wings are detached from the main fuse tube. All the wing removal can be done without tools. The wing can be reattached in about 25 minutes.

The X-air came in a range of 15 different colour combinations.

March 1999

In 2012 the X-Air LS was still priced at US$59,995.

General Configuration
Two seater, side by side
3 Axis; Ailerons, elevator and rudder
Full dual control – two sticks, two throttles
High wing, high mounted engine
Tricycle Gear, with independant shock absorbers
Steerable nose wheel, linked to rudder pedals
Toe operated differential brakes
Enclosed cockpit, lexan windscreen
Elevator trim
Two 27L Tanks
Polyester Sail Cloth
G loading +6 -3
6061 T6 Alluminium
Tubing epoxy/polyurethane painted
Length: 5.70 m / 18 ft 8 ins
Wing span: 9.80 m / 32 ft
Max height: 2.55 m / 8 ft 4 ins
Wheel track: 1.60 m / 63 ins
Wing area: 16.00 sq.m
Wing loading: 28.13 Kg/sq.m
Wheel size: 500 mm/16 ins
Wheel base: 1.45m/57 ins
Empty weight 503: 226 kg / 498 lbs
Empty weight 582 232 kg / 510 lbs
Empty weight 618: 242 kg
Empty weight fully optioned 503: 251 kg
Empty weight fully optioned 582: 270 kg
Empty weight fully optioned 618: 279 kg
MTOW Weight: 450 kg / 992 lbs (Australia 490 kgs)
Roll rate: 3.5sec – 45deg left to right
Stall: 26 kt / 30 mph / 48 kmh
Cruise: 61 kt / 70 mph / 113 kmh
VNE: 83 kt / 95 mph / 153 kmh
Climb Rate: 900 ft/min / 5 m/s
Glide Ratio: 1:7
Take-off distance (50ft obstacle): 880 ft / 269 m
Landing distance (50ft obstacle): 750 ft / 230 m

Engine: Rotax 503, 52 hp
Wing span: 9.80 m
Wing area: 16 sq.m
MAUW: 450 kg
Empty weight: 230 kg
Fuel capacity: 50 lt
Max speed: 110 kph
Cruise speed: 85 kph
Minimum speed: 48 kph
Climb rate: 3 m/s
Fuel consumption: 10 lt/hr
Seats: 2
Kit price (1998): 78 500 Fttc

Wysong 1915 biplane

A Curtiss headless type single place open biplane was built in 1915 by college student Forrest E Wysong using written instructions sent to him by Lincoln Beachey.

First flown on 16 March 1915, it was flown four times before his father ordered him to “get rid of the dangerous machine.”

Engine: 75hp Roberts 6 pusher
Propeller: 8′
Wingspan: 22’0″
Length: 18’0″
Speed: 90 mph
Seats: 1

Wyandotte High School Pup

In 1932, Wyandotte High School built the prototype Pup (NX12546) as a shop class project, the first one ever designed and built in a public high school. Desiged by Noel Hockaday and Guy Poyerand costing around $1,800, the Pup first flew on 18 August 1932.

A single place, high wing monoplane, two or three were built, the last one sold to Porterfield Aircraft and introduced at the 1935 Detroit Air Show as Porterfield Flyabout with a 70hp LeBlond engine.

Engine: 40hp Aeromarine AR-3
Wingspan: 32’0″
Length: 21’0″
Useful load: 425 lb
Max speed: 100 mph
Cruise speed: 80 mph
Stall: 33 mph
Seats: 1

Wullschleger-Peier Triplane

Swiss designed and built by Fritz Wullschleger and Albert Peier in 1913; their design of the triplane was uniquely implemented as the wing tips on the upper plane were folded down and on the lowest plane were folded up. The whole resulted in an almost closed-wing construction. As can be seen from other photographs of the machine, it was a two-seater, powered by a 5-cylinder Anzani air-cooled engine. Unfortunately the machine never got off the ground.

Wrong Brothers Right Flyer

When the two Wrong brothers set out to make a right, they called it the Right Flyer, naturally enough. Though catagorized as a powered hang glider in general layout, takeoff can still be made on three wheels, and there is a control stick. Instead of aileron displacement, right-left stick movement applies wingtip rudder deflection that results in fairly good coordinated turns. Body weight is used for pitch adjustments.

Engine: Cuyuna, 22hp
Fuel cap: 5 USG
Endurance: 4 hr
Glide ratio: 9.5 / 230 fpm
Cruise: 25-45 mph
ROC: 450 fpm

Wróblewski-Salvez W-I / W-II / W-III / W-IV

W-II & W-III 1911-12

In 1911 Piotr Wróblewski-Salvez built in France in Berthaud factory at Ambrieu near Lyon a monoplane aircraft with partially metal construction (of fuselage) which made numerous successful flights (piloted by designer’s brother Gabriel Wróblewski-Salvez); one year later it was heavily modified and in July 1912 it made some flights with passengers, one of which was then-12-years old Antoine de Saint-Exupéry for whom it was his first flight.

W-IV 1913-15

Later Wróblewski-Salvez brothers built an improved design but during one of the test flights in 1914 it crashed, killing both brothers.

Wright-Tuttle W-T-5

Circa 1920s, the W-T-5 was built with less than 200 parts and weighs 2.2 lb per hp. The valve operating mechanism has duraluminium push rods, and rocker arms with ball bearings. The dual ignition timing runs from 0 to 35 degrees.

Type: 5 cylinder, air cooled, fixed radial
Dept of Commerce Approved type
Rating: 100 hp at 1400 rpm
Displacement: 482 cu.in
Compression ratio: 5.2-1
Bore: 4.75 in
Stroke: 5.5 in
Length: 34 9/16 in
Diameter: 42.5 in
Weight: 275 lb
Fuel consumption: not more than .503 lb/hp/hr
Oil consumption: not more than .022 lb/hp/hr
Lubrication: Dry sump, one lubricating and one scavenging pump
Ignition: Dual Scintilla magnetos
Carburation: 1 Stromberg
Spark plugs: 2 per cylinder Champion
Price: $1875

Wright Redux Assn Flyer

In 2003 the Wright Redux Assn of Glen Ellyn IL. built a Wright Flyer replica with specs and construction techniques reportedly identical to the original 1903 Wright brothers’ machine.

The flying replica was built to coincide with the 100th anniversary celebrations, with a first flight date set for 17 December 2003.

Registered N203WF c/n WOW1903-02, an FAA Special certification in the category of Experimental-Exhibition was issued on 15 March 2003.

Wright-Martin V

The sole 1916 Wright-Martin V, designed by Chance Vought, was built for military trials, but the project was never pursued. It was sold to a private party after WW1.

It has been reported as powered by a 150hp Hisso driving two tractor props.

Engine: Wright-Simplex A, 150hp
Wingspan: 39’9″
Length: 27’2″
Useful load: 595 lb
Speed: 90 mph
Range: 300 mi
Seats: 2