General Directives For The Cooling System - Rotax 914 F Installation Manual

12.7) General directives for the cooling system

See illustration 21.
BOMBARDIER-ROTAX offers essential parts of the cooling system for this engine
such as radiator, overflow bottle etc. (see spare parts list) in the non-certified state.
Certification to the latest requirements to FAR or JAR has to be conducted by the
aircraft builder.
Ill. 21
In an installation as depicted with the radiator O in a higher position than the standard
supplied expansion tank, a water accumulator P has to fitted instead of the expansion
tank. Additionally a suitable expansion tank Q has to be installed at the highest point
of the cooling circuit.
ATTENTION: The size and type of radiator should be adequate to transfer thermal
NOTE:
Date
Page
1996 05 10
36
energy of c. 30 kW (28 BTU/s) at take-off power.
Assessment data by experience. For troublefree operation at good
airflow a radiator of at least 500 cm
The flowrate of coolant in the cooling system can be assumed with
c. 55 l/min (16 US gal/min) at 5500 r.p.m.
Install
914 F
O O
2 (78 in
Reference
Q Q
P P
2 ) area has to be used.
Modification-No.
- 0 -