Rotax 914 series Installation Manual

page 124
July 01/2008
Effectivity: 914 Series
Edition 2 / Rev. 0
d04282
INSTALLATION MANUAL
BRP-Rotax
Requirements for correct operation of the integrated rectifier-regulator:
- the rectifier-regulator has to be protected by a slow blowing 50A fuse or a
circuit breaker. Fuse or circuit breaker rating must be determined by load,
wire size and length.
- cross section of the main circuit at least 4 mm
2
(10 AWG)
- a capacitor (Fig. 69 Pos. (25)) of at least 22 000 µF / 25 V is necessary
- current:
■ CAUTION: The current over speed graph has been determined and is
effective only at the following conditions:
ambient temperature: 20 °C (68 °F)
voltage: permanent 13,5 V
tolerance: ± 5%
◆ NOTE: The speed of the auxiliary generator is 1,24 times
crankshaft speed or 3 times the prop speed.
1/min. / rpm.
2000 3000 4000 5000 6000 7000 8000
n Generator
rpm. alternator
(A)
10
20
30
40
50
1000 1500 2000 2500
n Propeller
rpm. propeller
Fig. 83
00547

Rotax 914 series Specifications

General

Bore	79.5 mm
Stroke	61 mm
Compression Ratio	9.0:1
Cooling System	Liquid-cooled cylinder heads, air-cooled cylinders
Redline	5800 rpm
Engine Type	4-cylinder, 4-stroke
Fuel Type	Avgas 100LL
Oil System	Dry sump
Fuel System	fuel injection
TBO (Time Between Overhauls)	2000 hours
Displacement	1.211 liters (1211 cc)
Power Output	84.6 kW (115 hp) at 5, 800 rpm