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Coolant System Changes between the E and F models |
As has been seen in the article regarding the radiator ducting from the Emil to the Friederich, quite a lot of effort was invested in the new F model with an eye towards maximum aerodynamic efficiency, balanced against the cooling requirements of the high performance DB601 engine. To that end, an entirely new coolant system was designed for the F, with a number of important changes:
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- The single, vulnerable coolant tank behind the spinner baseplate was replaced with a 38.6 liter oil tank, and two small coolant tanks were mounted on either side of the engine crankcase. - The radiators were lengthened and made more shallow, as discussed previously, as part of the drag reduction program. In addition, the feed and return lines were moved to the same side of the unit to facilitate ease of repair. - The feed and supply routes were roughly the same as before; however, a feature not shown in the diagram below was the provision for fitting individual radiator shutoff valves in the feed tube to each radiator in order to shut one off in the event of combat damage. Somehow, this never became a standard factory fit and these became highly prized items in the field (for obvious reasons!). |
The coolant system remained largely unchanged from the F on through the K models.
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Bf109E coolant system diagram |
Bf109F coolant system diagram |
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