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The original A-109A was superseded by the upgraded A-109A Mk.II from September 1981. Improvements incorporated in the Mk.II included a greater transmission rating, redesigned tailboom and a new tail rotor driveshaft, improved rotor blade life and modern avionics. The Mk.II is also available in widebody configuration with increased internal volume courtesy of bulged fuselage side panels and reshaped fuel tanks under the cabin floor. The Mk.II Plus has the more powerful 250-C20R1 engines, as does the A-109C. The 109C also has composite rotor blades.
The A-109K first flew in April 1983 and is powered by two 470kW (640shp) max continuous operation rated Turboméca Arriel 1K1 turboshafts. The latest A-109 model is the PW-206C powered (477kW/640shp takeoff rated) A-109E Power, which first flew on February 8 1995 and was certificated in August 1996. Based on the A-109K-2 it also features a strengthened landing gear and improved main rotor. The engines feature FADEC.
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 |
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|
|
| Seating (normal) |
7 |
Max Takeoff (lbs) |
5,732 |
| Seating (maximum) |
8 |
Certified Ceiling (ft) |
20,000 |
|
| Engines |
Two Allison 250-C20B |
To (Sealevel, ISA Temp) (ft) |
- |
| Output lbs ea. Flat Rating |
400 shp |
Landing Distance (ft) |
- |
| Maximum Mach No. |
- |
Max Range (fuel) (nm) |
- |
| High Speed Cruise (Kts) |
154 |
Max Range (payload) (nm) |
350 |
|
| Flight Time 300nm |
- |
Flight Time 1000nm |
- |
| Flight Time 600nm |
- |
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|
| External |
|
Internal |
|
| Length (ft) |
13.05 |
Length (ft) |
- |
| Height (ft) |
3.30 |
Height (ft) |
- |
| Span (ft) |
11.00 |
Width: Max floor (ft) |
- |
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