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Lancashire Microlight Micro-Trike

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Micro-Trike 440/Dual Striker


The Micro-Trike 250/ Medium Striker and Micro-Trike 330/ Medium Striker are single-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 nose-wheel steering independent from yaw control. No brakes. Aluminium-tube trike unit, with optional pod. Engine mounted below wing driving pusher propeller.
Aluminium tubing to British HT3OTF specification, drawn seamless, bright anodized. Plates and brackets black anodized. Wheels run on needle-roller bearings.
The Micro-Trike 250 is a conventional design, combining mono-pole construction, a collapsible seat frame for easy stowage and Robin EC25PS engine. As is usual with the 250 cc Robin, a recoil start is fitted, arranged in this case so that the pilot can restart in flight. The throttle is foot-operated and there is also a hand-set cruise control.
The white rubbers on the pedals are a recognition point on all Lancashire Micro-lights machines.
Although the company can supply a wing from virtually any British manufacturer, it recommends the Flexiform Sky Sails Medium Striker for its single-seat machines; the Medium Striker is a fast wing and is well liked because the absence of a cross-tube makes is very quick to rig.
Options on the Micro-Trike 250 include a glassfibre pod with instrument panel, and a full range of instruments. The aircraft is available in kit form or ready-to-fly.
The Micro-Trike 330 is identical in all respects to the 250 model, except that its power plant uses a Robin EC34PM engine. Lancashire Microlight finds that most buyers now prefer the twin-cylinder machine, and is concentrating future single-seat development work on this model. By far the most important development in the pipeline is a suspension system.
To special order the 330 cc machine can be supplied as a tandem two-seater (only the seat is changed), but the company. normally recommends the Micro-Trike 440 for customers wanting two-seats, feeling that the extra power gives a useful safety margin. Options and standard wing fitment are as for the Micro-Trike 250.
The Micro-Trike 250/Medium Striker differs in being a tandem two-seat; wing 65% double-surface; nosewheel brake. Although it can be supplied to special order as a single-seat trike unit, the Micro-Trike 440 is really intended as a two-scat trainer or tourer, in which form it is normally mated to the Flexiform Sky Sails Dual Striker wing. Apart from the obvious change to the seating arrangements, the Micro-Trike 440 follows closely the design of the smaller-engined machines and offers the same op-tions. The suspension system being developed for the 330 will also be fitted to this aircraft. Unlike the single-seaters, however, a nosewheel brake is fitted.

Micro-Trike 250/ Medium Striker

Engine:  Robin EC25PS, 22 hp at 6500 rpm.
Propeller diameter and pitch 54 x 27 inch, 1.37 x 0.69 m.
V-belt reduction, ratio 2.5/1.
Max static thrust 140 lb, 64 kg.
Power per unit area 0.11 hp/sq.ft, 1.2 hp/sq.m.
Fuel capacity 2.4 US gal, 2.0 Imp gal, 9.1 litre.
Length overall 13.8 ft, 4.19 m.
Height overall 9.8ft, 3.00m.
Wing span 33.0ft, 10.06m.
Mean chord 6.1ft, 1.85m.
Dihedral 0.5 deg.
Sweepback 15 deg
Keel pocket depth 1.2ft, 0.37 m.
Total wing area 200 sq.ft, 18.6 sq.m.
Keel pocket area 3.5 sq.ft 0.33sq.m.
Wing aspect ratio 5.4/1.
Nosewheel diameter overall 14 inch, 36 cm.
Main wheels diameter overall 14 inch, 36 cm.
Empty weight 175 lb, 79kg.
Max take-off weight 359 lb, 163kg.
Payload 184 lb, 83kg.
Max wing loading 1.80 lb/sq.ft, 8.8 kg/sq.m.
Max pow-er loading 16.3 lb/hp, 7.4 kg/hp.
Load factors +4.5, -2.0 design.
Max level speed 40 mph, 64 kph.
Never exceed speed 55 mph, 88kph.
Max cruising speed 35mph, 56kph.
Economic cruising speed 35 mph, 56 kph.
Stalling speed 22 mph, 35 kph.
Max climb rate at sea level 500 ft/min, 2.5 m/s.
Min sink rate 350 ft/min at 27 mph, 1.8 m/s at 43 kph.
Best glide ratio with power off 8/1 at 27 mph, 43 kph.
Take-off distance 85 ft, 25 m.
Landing distance 120ft, 35 m.
Service ceiling 6000ft, 1830 m.
Range at average cruising speed 90 mile, 145 km.

Micro-Trike 330 / Medium Striker
Engine: Robin EC34PM, 32 hp at 6500 rpm.
Propeller diameter and pitch 54 x 30 inch, 1.37 x 0.76 m.
Toothed-belt reduction, ratio 2.5/1.
Max static thrust 210 lb, 95kg.
Power per unit area 0.16hp/sq.ft, 1.7 hp/sq.m.
Fuel capacity 4.8 US gal, 4.0 Imp gal, 18.2 litre.
Length overall 13.8 ft, 4.19 m.
Height overall 9.8ft, 3.00m.
Wing span 33.0ft, 10.06m.
Mean chord 6.1ft, 1.85m.
Dihedral 0.5deg.
Sweepback 15deg.
Keel pocket depth 1.2ft, 0.37 m.
Total wing area 200 sq.ft, 18.6 sq.m.
Keel pocket area 3.5 sq.ft 0.33sq.m.
Wing aspect ratio 5.4/1.
Nosewheel diameter overall 14 inch, 36 cm.
Main wheels diameter overall 14 inch, 36 cm.
Empty weight 195 lb, 88 kg.
Max take-off weight 437 lb, 198kg.
Payload 242 lb, 110kg.
Max wing loading 2.19 lb/sq.ft, 10.6 kg/sq.m.
Max power loading 13.7 lb/hp, 6.2kg/hp.
Load factors +4.5, -2.0 design.
Max level speed 45 mph, 72 kph.
Never exceed speed 55 mph, 88kph.
Max cruising speed 45mph, 72kph.
Economic cruising speed 45mph, 72kph.
Stalling speed 25 mph, 40 kph.
Max climb rate at sea level 1000 ft/min, 5.1 m/s.
Min sink rate 350 ft/min at 27 mph, 1.8 m/s at 43 kph.
Best glide ratio with power off 8/1 at 27 mph, 43 kph.
Take-off distance 70 ft, 20 m.
Landing distance 120 ft, 35 m.
Range at average cruising speed 54 mile, 87 km.

Micro-Trike 440/Dual Striker
Engine: Robin EC44, 50 hp at 7000 rpm.
Propeller diameter and pitch 62 x 27 inch, 1.57 x 0.69 m.
Toothed-belt reduction, ratio 2.5/1.
Max static thrust 300 lb, 136 kg.
Power per unit area 0.20hp/sq.ft, 2.2hp/sq.m.
Fuel capacity 4.8 US gal, 4.0 Imp gal, 18.2 litre.
Length overall 14.0 ft, 4.27 m.
Height overall 10.1ft, 3.08m.
Wing span 38.0ft, 11.58m.
Chord at root 9.0ft, 2.74m.
Chord at tip 3.5ft, 1.07m.
Dihedral 2deg.
Sweepback 15 deg.
Keel pocket depth 1.2ft, 0.37m.
Total wing area 250 sq.ft / 23.2sq.m.
Keel pocket area 3.5 sq.ft, 0.33 sq.m.
Wing aspect ratio 6.0/1.
Nosewheel diameter overall 16 inch, 40 cm.
Main wheels diameter overall 16 inch, 40cm.
Empty weight 243 lb, 110kg.
Max take-off weight 639 lb, 290kg.
Payload 396 lb, 180kg.
Max wing loading 2.56 lb/sq.ft, 12.5 kg/sq.m.
Max power loading 12.8 lb/hp, 5.6kg/hp.
Load factors +4.5, -2.0 design.
Max level speed 45 mph, 72 kph.
Never exceed speed 55 mph, 88 kph.
Max cruising speed 45 mph, 72 kph.
Economic cruising speed 40mph, 64kph.
Stalling speed 25 mph, 40 kph.
Max climb rate at sea level 650 ft/min, 3.3 m/s.
Min sink rate 350 ft/min at 27 mph, 1.8 m/s at 43 kph.
Best glide ratio with power off 8/1 at 27 mph, 43 kph.
Take-off distance 130 ft, 40 m.
Land-ing distance 200 ft, 60 m (without brakes).
Range at average cruising speed 90 mile, 145 km.

 

 

 


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