PPRuNe Forums - View Single Post - EC155B1 Rotor Brake
View Single Post
Old 20th Jul 2007, 09:52
  #8 (permalink)  
nodrama
 
Join Date: Mar 2007
Location: UK
Posts: 321
Likes: 0
Received 0 Likes on 0 Posts
"On a slightly different note, the engine oil is cooled on the 76 by two fans mechanicaly driven from the MR gearbox, so if the engines are stopped, how does the engine oil cool, or does it?"

If the MGB isn't turning (therefore fans aren't turning), there is still alot of cooling going on. Heat is still dissipated through the material of the various pipes the oil travels through and the cooler itself, even though no air is passing through it. Also, the oil tank itself is designed to dissipate alot of heat. Especially if it isn't an integral part of the engine.
It's only when the engines start working that the oil gets hot enough that the aid of fan driven air is needed through the cooler to help heat dissipation.

Last edited by nodrama; 20th Jul 2007 at 10:22.
nodrama is offline