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Britten Norman BN2A MkIII-3 Trislander - Pilot's Handling Notes
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SUMMARY.

Normally pilot plus sixteen passenger seats. No aisle, hence no toilet and no cabin attendant.

Empty equipped weight is 6,000lbs. Maxiumum JAA certificated weight 4,763Kg (about 10,500lbs) an increase from the original CAA/FAA max of 10,000lbs (1971-1996). Handling data below apply at 10,000lbs.

The three 260hp Lycoming O-540-E4C5 engines are carburetted and normally aspirated. The constant speed propellers have no reverse pitch. All props turn in same direction.

Maximum fuel load is 197 US gallons (about 1,180lbs) of which 188 USG are usable. The default load is max fuel with limited payload departing (the ramp) at 10,000lbs. Adjust gross weight, fuel and payload using the weight and balance schedule of aircraft.cfg.

The fixed landing gear is rugged and will absorb abuse. Rough field operations are permitted.

FSAVIATOR.

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HANDLING THE AIRCRAFT

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GROUND HANDLING

Please use left/right brakes to assist in decreasing the turning circle. This makes
the ground steering of the aircraft much more realistic - as in the real aircraft!!

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Short Take Off: (Runway < 1000 metres)

Select FIRST stage of FLAP.

PROPS FINE.

APPLY BRAKES.

FULL THROTTLE.

RELEASE BRAKES.

ROTATE at 71 KIAS.

ACCELERATE to 80 KIAS.

CLIMB 200 feet AGL.

ACCELERATE to 90 KIAS.

RAISE FLAPS

ACCELERATE to 100 KIAS

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Normal (derated) take off: (Runway >1000 metres)

TRIM one notch NOSE UP.

PROPS FINE.

27 inches MAP.

ROTATE at 80 KIAS.

ACCELERATE to 90 KIAS.

200 AGL RAISE FLAPS.

ACCELERATE to 100 KIAS.

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Max gradient and expedited climb:

FULL THROTTLE

2700 RPM.

80 KIAS.

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En route Climb below FL50:

Continuously adjust to 25 inches MAP.

2500 RPM.

100 KIAS.

Check CHT < 450F

Plan 55 USG per hour

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En route Climb above FL50 or GO AROUND:

FULL THROTTLE

PROPS FINE

90 KIAS.

Check CHT < 450F

Plan 50 USG per hour

WARNING - This aircraft cannot maintain IFR minimum climb rate of 500 ft/min above FL60.

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Cruise:

23 inches MAP

2300 rpm

Check CHT 325 - 375F

Plan 40-45 USG per hour

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Holding, patrol, survey and fuel conservation:

2300 rpm

100 KIAS

MAP as required

Check CHT 325 - 375F

Plan 30 USG per hour

If ATC permit hold and divert at lowest safe level.

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Circuit, Intermediate and Instrument Approach:

2300 rpm

MAP as required

120 KIAS FLAPS UP

else / later

90 KIAS with FIRST stage FLAP


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Normal Final Approach and Landing:

PROPS FINE

MAP as required

90 KIAS FULL FLAP

Cross THRESHOLD 80 KIAS

FLARE and LAND

Hold NOSEWHEEL UP for aerodynamic braking until 50 KIAS.

<50 KIAS nose down and wheel brakes as required.

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Short Landing:

PROPS FINE

MAP as required

80 KIAS FULL FLAP

Cross THRESHOLD >70 KIAS

LAND >60 KIAS

Nose down and wheel brakes as required.

WARNING - No anti skid ABS.

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Baulked Landing:

FULL THROTTLE

PROPS FINE

ROTATE and CLIMB >70 KIAS

Clear of obstacle ACCELERATE 90 KIAS

> 200 AGL and 90 KIAS FLAPS UP

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Flaps:

FIRST STAGE FLAP LIMIT 133 KIAS

FULL FLAP LIMIT 110 KIAS

FULL FLAP STALL 50 KIAS

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Carb Heat:

Desending with < 20 inches MAP with an OAT below 5C (40F)
use carb heat periodically to clear carburettor ice.
Continuous use of carb heat is not recommended.

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General:

AEROBATICS are prohibited. G limit 3.3 flaps up and 2.0 flaps down.

In ROUGH AIR never exceed 142 KIAS.

NEVER EXCEED 182 KIAS.

MAX LEVEL FL120 (with passengers)

MAX LEVEL in EUROPE FL100

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HANDLING THE ENGINES

CAUTION - In this aircraft in Fs2002 - Failure of the number 2 (mid) engine has no symptoms or warnings other than decaying airspeed. The real aircraft has a warning light which we are unable to reproduce.

Vmca 80 KIAS. No 2 engine failure Vmc 50 KIAS.

Unless you have real world experience of leaning aero engines auto mixture should be set to ON in the realism menu. The mixture levers and EGT gauge do however support realistic operation if you choose to use a panel with at least three mixture levers.

The following apply when the 3 engined Trislander is flown with a twin engined panel.

The "right hand levers" are connected to the mid (No2) engine. The critical engine is the left (No1) engine which is connected to the "left hand levers". Practice "engine failures" with the engines running may be made by sliding the appropriate engine levers with the mouse.

The right (No3) engine may be started or shut down individually in the usual way using the keyboard.

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NOTE: This aircraft's real-world handling notes have been only slightly modified for use with FS 2002.
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