TWIN-ENGINE HELICOPTER OPERATIONS
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TWIN-ENGINE HELICOPTER OPERATIONS. WHY A TWIN?. Direct routings in urban areas: saves time Can do Commercial Air Transport at night Can fly IFR (cloud/low visibility) subject to temperature and pilot qualification/training Operates to smaller landing sites than single-engine helicopters

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TWIN-ENGINE HELICOPTER OPERATIONS

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Powerpoint presentation av8 helicopters

TWIN-ENGINE HELICOPTER OPERATIONS

AV8 Helicopters Ltd


Why a twin

WHY A TWIN?

  • Direct routings in urban areas: saves time

  • Can do Commercial Air Transport at night

  • Can fly IFR (cloud/low visibility) subject totemperature and pilot qualification/training

  • Operates to smaller landing sites than single-engine helicopters

  • Can be used for over-water CAT flights

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

TWIN ENGINE: ENHANCED OVERALL SAFETY

AND OPERATIONAL FLEXIBILITY

THE AIRCRAFT OF CHOICE

FOR CORPORATE AND EXECUTIVE WORK

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

PROS AND CONS OF COMMON LIGHT TWIN HELICOPTERS

  • Agusta 109: sleek, fast, up to 7 pax seats

  • EC 135: state of art, quiet, high capital cost, not

  • widely available, but lower DOC than some

  • MD 902 Explorer: ‘NOTAR’ high capital costs,

  • history of technical and support difficulties

  • Bell 427: unusually for Bell, has not been a

  • commercial success

  • AS355 Twin Squirrel F1/F2/N: easy availability

  • predictable DOC, good cabin configurations

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

TWIN SQUIRREL

  • AS 355-F1: 2 x RR Allison Engines, 2400 kg MAUW

  • AS 355-F2: 2 x RR Allison Engines, 2540 kg MAUW

  • AS 355-N: 2 x TM Arrius Engines, 2600 Kg MAUW

AV8 Helicopters Ltd


Agusta 109 power

Agusta 109 Power

2 x PW206 or Arrius 2 Engines, 2850 Kg MAUW

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

COMPARISON OF COMMON

SINGLE ENGINE AND TWIN ENGINE

HELICOPTERS: PAYLOAD AND RANGE

Typical Weights will vary with standard of equipment and cabin layout/trim

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AGUSTA A109E POWER

SERIAL NO 11011

REGISTRATION NO 5N-BGX

(Former N108WP, N27BD)

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

A109-Power 5N-BGX

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

Survey Findings

# 2 engine intake shroud burnt/corroded

Oil leak in gearbox well area

Play in # 2 eng. Mounts

L.H. brake calliper leaking, main wheel contaminated

# 1 U/C actuator weeping

Mandolin frame repair – check safety of Hi-locks

T/R pitch change mechm. fixed link (pt.no. 109-0130-60-109) worn

T/R connecting link (2 off) [pt.no. 109-0133-04-105] worn to limits

0.25 inch crack in frame 8339.3 (ADF access panel, looking aft)

T/R/D/S bearings, rubber dust shields show signs of distress

ECS scat tube holed

P1 heater control knob missing

Very noisy fuel boost pump

Fuel Qty. indications mismatch (124/93 Kgs)

DME/Indicator inop.

ASI discrepancy (130/115 Kts.)

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

  • PENDING TECHNICAL BULLETINS

  • BT- 39 (Batt. Bus, Compliance due 31/03/04)

  • BT- 40 (Radio Master Sw., Compliance due 31/12/03)

  • BT- 41 (Emer. Bus relay. Repetitive?)

  • BT- 42 (Oil cooler hose, Compliance due 31/08/05)

  • BT- 43 (M.G.B attach. Hardware, Compliance due 30/09/04)

  • BT- 46 (Relocate ELT aerial, not mandated by National Authority, but is in Europe)

  • BT- 56 (Pitot heater, optional)

  • ITEMS SHORTLY DUE

  • BT - 57 (Audio warning panel, Compliance due 28/02/06)

  • BT - 59 (ECS overheat, Compliance due 30/09/06)

  • BT - 60 (U/C actuators, Compliance due 31/12/06)

  • BT - 61 (CAD’s, Compliance due 31/03/06)

  • BT - 63 (Fire control panels, Compliance due 30/04/06)

  • BT - 66 (Generator loom, Compliance due 31/07/06)

AV8 Helicopters Ltd


Powerpoint presentation av8 helicopters

QUESTIONS?

AV8 Helicopters Ltd


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