ULPOWER UL390iSA Specifications download pdf (Page 13)

Operating Manual ULPOWER UL390i UL390iS UL390iSA

MO 390A01 Revision No: 2 Date: 2014-09-15 Page: 11 of 22

General operating limits

Speed

Max. engine speed ...................... 3300 rpm

Recommended prop speed ............ 2400 - 2800 rpm

Normal idle speed ....................... 850 rpm

Min. idle speed .......................... 700 rpm

Running in

To run in a new engine, it is recommended to limit the speed at 3000 rpm for the first 5 hours.

Performance (ISA)

a) UL 390i Maximum (for 5 minutes) : 140 hp @ 3300 Rpm

Maximum continuous power : 125 hp @ 2800 Rpm

b) UL 390is Maximum (for 5 minutes) : 160 hp @ 3300 Rpm

Maximum continuous power : 143 hp @ 2800 Rpm

Acceleration

Limit of engine operation at zero gravity and in negative "g" conditions

Max. ....................................... 3 seconds at max. –0.5 g

Oil pressure

Max. ....................................... 8 bar (115.0 psi) (cold start)

Normal .................................... 2–5 bar (30–75 psi) — above 2000 rpm

Min. ........................................ 1 bar (14,5 psi) — below 2000 rpm/above 900 rpm

Oil level?

Max. ....................................... 4,0 litres (4,22 quarts)

Min. ........................................ 3,0 litres (3,17 quarts)

Oil temperature

Max. ....................................... 120°C (248°F)

Min. ........................................ 50°C (122°F)

Normal .................................... 80-100°C (175-212°F)

Cylinder head temperature

Max. ....................................... 190°C (375°F)

Max. continuous ......................... 160°C (320°F)

Min. ........................................ 50°C (125°F)

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ULPOWER UL390iSA Specifications Page 13