Effectivity: 912 Series
Edition 1 / Rev. 0
d04054
page 53
May 01/2007
BRP-Rotax
INSTALLATION MANUAL
Once the calculation is made and the indicating instrument re-labelled it is
acceptable to use the cylinder head temperature as the primary cockpit display
instead of installing a sensor in the coolant flow.
The measurement is based on the maximum coolant temperature and cylinder
head temperature according to the current requirement.
■
CAUTION:
In no case a cylinder head temperature higher than the limit of
150 °C (300 °F) (for ROTAX 912 UL/A/F) and 135 °C (275 °F)
(for ROTAX 912 ULS/S) can be defined because detonation
could not be sufficiently prevented.
Refer to the flight test example that follows.
c)
Cooling capacity of the installation too low.
Flight test example:
Calculated values (maximum values found for coolant temperature and cylinder
head temperature. Refer to the current specification of the FAA and/or EASA):
Coolant temperature.....................102 °C (216 °F)
Cylinder head temperature...........110 °C (230 °F)
The cylinder head temperature is 8 °C (46 °F) higher than the coolant
temperature.
Thus:
Coolant temperature limit...............................................120 °C (248 °F)
Difference cylinder head and coolant temperature..........+ 8 °C ( 46 °F)
= 128 °C (262 °F)
The highest cylinder head temperature permitted is 128 °C (262 °F), so that the
max. coolant temperature is kept.
With this special application, safe operation of the engine that prevents boiling
of the coolant is possible up to a cylinder head temperature of 128 °C (262 °F).
■
CAUTION:
This cylinder head temperature with the limit found for this type
must be displayed constantly in the cockpit.
The indicating instrument and the manuals must be changed
to cylinder head temperature max. 128 °C (262 °F).
■
CAUTION:
The design of the radiator installation must be changed
(example:
cowl modifications), if the operating temperature
exceeds the specified limits.
Содержание 912 ULS 3
Страница 1: ...45 5 0 6 03 305 9 5 1 4 3 4 QBSU OP 898642 305 9 6 4 8 5 015 0 4 2 2 4 3 Ref No IM 912...
Страница 6: ...page 6 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04050 INSTALLATIONMANUAL BRP Rotax NOTES...
Страница 10: ...page 10 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04051 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 16: ...page 16 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04051 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 18: ...page 18 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04051 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 20: ...page 20 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04051 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 26: ...page 26 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04052 INSTALLATIONMANUAL BRP Rotax NOTES...
Страница 30: ...page 30 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04052 INSTALLATIONMANUAL BRP Rotax NOTES...
Страница 46: ...page 46 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04053 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 90: ...page 90 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04056 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 98: ...page 98 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04057 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 120: ...page 120 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04059 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 124: ...page 124 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04060 INSTALLATION MANUAL BRP Rotax Fig 82 08328...
Страница 134: ...page 134 May 01 2007 Effectivity 912 Series Edition 1 Rev 0 d04060 INSTALLATION MANUAL BRP Rotax NOTES...
Страница 135: ......