Aircraft engine position number
| Aircraft engine position numbering | |
|---|---|
 Thrust levers in a Boeing 727 with the engine number on each lever |
On multi-engined aircraft, aircraft engine positions are numbered from left to right from the view of the pilot looking forward.[1]
Wing and rear-mounted engines
Twin-engined aircraft
Three-engined aircraft
- #1 - port - on the left
- #2 - centre - on the centerline
- #3 - starboard - on the right
Four-engined aircraft
- #1 - port outer - on the left furthest from the fuselage
- #2 - port inner - on the left nearest to the fuselage
- #3 - starboard inner - on the right nearest to the fuselage
- #4 - starboard outer - on the right furthest from the fuselage
Six-engined aircraft
- #1 - port outer - on the left furthest from the fuselage
- #2 - port middle - on the left between #1 and #3
- #3 - port inner - on the left nearest to the fuselage
- #4 - starboard inner - on the right nearest to the fuselage
- #5 - starboard middle - on the right between #4 and #6
- #6 - starboard outer - on the right furthest from the fuselage
Other configurations
Centerline
The English Electric Lightning has two jet engines on the centerline one above the other.[2]
- #1 - below and to the front of #2
- #2 - above and to the rear of #1
The twin boom Cessna 337 Skymaster one engine forward and one engine aft.
- #1 - at the front
- #2 - behind the fuselage
References
- ↑ National Business Aircraft Association (1952). Skyways for business. Henry Publications. p. 52.
- ↑ Power Plants
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