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P.M. & T. Honeybird

Single-seat single-engined high-wing monoplane with conventional three-axis control. Wing has unswept leading and trailing edges, and constant chord; conventional tail. Pitch control by elevator on tail; yaw control by fin-mounted rudder; roll control by quarter-span spoilerons; control inputs through stick for pitch/roll and pedals for yaw. Wing braced from below by struts; wing profile NACA 23015; 100% double-surface. Undercarriage has three wheels in taildragger formation; suspension on tailwheel and axle-flex/ rubber suspension on main wheels. Push-right go-right tailwheel steering connected to yaw control. Aluminium tube framework, with pod. Engine mounted below wing driving pusher propeller.

Pod made from Keviar/Carbon-fibre. Composite-construction wing uses aluminium tubing to British HT30TF specification, Styrofoam, and wood veneer covering.

The Honeybird is a sophisticated pod: it is non-structural and is attached to an aluminium framework.

Although the Honeybird is a microlight by definition, it is being built under the aegis of the British homebuilders association, the PFA, whose engineering requirements insist on gravity rather than pumped fuel-feed. The main fuel tank is therefore in the wing, with a reserve situated aft of the pilot.

The Honeybird is basically a homebuilt, which in 1982 had yet to make its first flight.

Engine: NGL WAE 342, 30hp at 6800rpm
Micro V-belt reduction
Power per unit area 0.23 hp/sq.ft, 2.5 hp/sq.m
Fuel capacity 3.6 US gal, 3.0 Imp gal, 13.6 litre in main tank; 4.8 US gal, 4.0 Imp gal, 18.2 litre in reserve
Length overall 18.5 ft, 5.64 m
Height overall 6.5ft, 1.98m
Wing span 32.5ft, 9.91m
Constant chord 4.0ft, 1.22m
Dihedral 3 deg
Sweepback 0 deg
Tailplane span 7.0ft, 2.13 m
Fin height 4.0ft, 1.22m
Total wing area 130 sq.ft, 12.1 sq.m
Total spoileron area 3.0 sq.ft, 0.28 sq.m
Wing aspect ratio 8.1/1
Wheel track 7.0ft, 2.13m
Tailwheel diameter overall 4 inch, 10 cm
Main wheels diameter overall 12 inch, 30 cm
Empty weight 2601b, 118kg
Max take-off weight 510 lb, 231kg
Payload 250 lb, 113kg
Max wing loading 3.92 lb/sq.ft, 19.1 kg/sq.m
Max power loading 17.0 lb/hp, 7.7kg/hp
Load factors +6.0 design
Never exceed speed 109mph, 175kph
Max cruising speed 68mph, 109kph
Stalling speed 34mph, 55 kph
Best glide ratio with power off 15/1

 

 


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