AE50R, AE50RA
AE50RAB
Engine Manual
Doc. No. E1.01.0-E Rev. 6 10-March-2011 Page 18-5
CAUTION !
Radiator. The optimum radiator design will vary with each
installation. It is the responsibility of the installer to provide an
adequate cooling system and thus ensure that the maximum
recommended coolant temperature is never exceeded even
under the most adverse operation conditions. The design
should also ensure that the minimum operating temperature
can be achieved under all flying weather conditions.
Flight trials will probably be necessary to confirm that the
design caters for the above conditions.
18.3.2 Suggested pipe bore
Outlet from engine and return from radiator 25-28 mm.
Header tank to radiator 5 mm minimum.
18.3.3 Max burst pressure
45 psi at 150 C
Expansion tank at the highest point
Positive head at pump entry is necessary to ensure zero cavitation
Air volume in expansion tank should allow
1) Rapid pressure rise is possible as coolant warm up
2) No coolant is ejected during / after boil