Operating Manual
UL
POWER
UL
260,
UL
350,
UL
390,
UL
520
M0310: OM 260 - 520A01 Revision No: 04
Date:
2021-11-18
Page:
11
of
23
Performance (in ISA -
International standard atmosphere -
conditions)
Engine
Maximum
peak HP
(for 5
minutes)
Maximum
continuous HP
Fixed pitch prop.
Maximum
continuous RPM
VP/CS-prop.
Maximum continuous
MAP
Indicated Manifold Air Pressure
-bar [inHg]
Maximum RPM
UL 260i
97
87
2800
0.88 [26]
3300
UL 260iS(a)
107
95
2800
0.88 [26]
3300
UL 350i
118
112
2800
0.88 [26]
3300
UL 350iS(a)
130
123
2800
0.88 [26]
3300
UL 350iHPS
145
131
3000
0.88 [26]
3500
UL 390i
140
125
2800
0.91 [27]
3300
UL 390iS(a)
160
143
2800
0.91 [27]
3300
UL 520i
180
170
2800
0.91 [27]
3300
UL 520iS(a)
200
180
2800
0.91 [27]
3300
UL 520T
220
200
2700
1.22 [36]
2700
Table 1 : Performance
Acceleration
Only operate the engine at zero gravity and in negative "g" conditions during a limited amount of
time. Positive oil pressure must be maintained at all times.
Deviation from bank angle
Value to which the wet sump (normal oil level) lubrication system warrants lubrication in positive
"g" flight situation
Max. .......................................
35°(non-aerobatic engines).
Oil level
Engine
Type
Max. oil level
Min. oil level
UL260/UL350
i/iF/iS/iHPS
3.5 litres (3.7 quarts)
2.5 litres (2.6 quarts)
iSA
4.5 litres (4.7 quarts)
3.5 litres (3.7 quarts)
UL390/UL520
i/iS/iSRR/iHPS
4.5 litres (4.7 quarts)
3.5 litres (3.7 quarts)
iSA
5.5 litres (5.8 quarts)
4.5 litres (4.7 quarts)
Attention:
The marks on the dipstick (min-max) are only valid when the engine is horizontal !
Always ensure that the plane is level before checking the oil level.
