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de Havilland Heron 2A Pilot's Handling Notes
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Four carburetted, normally aspirated, 250hp de Havilland Gipsy Queen 30 Mk.2 engines.
Mixture control is manual.
de Havilland variable pitch and feathering propellers are fitted.
CAUTION - Steering is by pneumatic differential braking (F11 + F12) and throttles only.
Neither the brakes, nor the castoring nosewheel are connected to the rudder pedals.
This aircraft has no hydraulic system.
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Take Off:
MIXTURE - FULL RICH
CARB HEAT - COLD
TRIM 33% full range NOSE UP
FLAP - STAGE 1
PITCH - FULL FINE
THROTTLE - FULL
ROTATE at 79 KIAS
Positive rate of climb
GEAR - UP
ACCELERATE 110 KIAS @ <= 500 ft/min
CLIMB 300 feet AGL
FLAP - UP
REDUCE to Climb Power
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Climb:
PITCH - FULL FINE
BOOST - MINUS 2.5 PSI
110 KIAS
Plan 80 USG per hour
Mixture - Rich below 3000 feet then as required
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Max Cruise: (< 3000 feet)
PITCH - INTERMEDIATE (use 2200 rpm in FS9)
BOOST - MINUS 2.5 PSI
MIXTURE - FULL RICH
Plan 80 USG per hour
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Max Cruise: (=> 3000 feet)
PITCH - INTERMEDIATE (use 2200 rpm in FS9)
THROTTLE - FULL
Mixture - weaken to max EGT
Plan 75 USG per hour
Note: Yields 166 KTAS at FL30
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Econ Cruise:
BOOST - MINUS 4 PSI
PITCH - COARSE (use 1800 rpm in FS9)
Plan 55 USG per hour
Mixture - lean to max EGT
Note: Yields 159 KTAS at FL80 (Design Cruise)
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Descent:
Do not exceed 174 KIAS
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Holding:
BOOST - MINUS 5 PSI
PITCH - COARSE (use 1800 rpm in FS9)
Mixture - lean to max EGT
Plan 50 USG per hour
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Approach and Landing:
On Centreline
REDUCE < 125 KIAS
PITCH - FULL FINE
FLAP - STAGE 1
On Descending
GEAR - DOWN
2 miles from touchdown
REDUCE < 100 KIAS
FLAP - STAGE 2
Cross airfield boundary 80 KIAS
Use 75 KIAS for STOL
FLARE and LAND
WHEEL BRAKES as required
FLAP - UP
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Carb Heat:
When < MINUS 5 BOOST with an OAT below 7C (45F)
use carb heat periodically to clear carburettor ice.
Continuous use of carb heat is not recommended.
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General:
AEROBATICS are PROHIBITED
Vmo 174 KIAS
Gear down do not exceed 135 KIAS
Full flap do not exceed 100 KIAS
CLEAN STALL 84 KIAS
FULL FLAP STALL 65 KIAS
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NOTE: This aircraft's real-world handling notes have been altered for use with FS 2004