They run at higher temps than a water cooled engine, and run at a higher percentage of maximum power most of the time.
On Fri, Sep 20, 2013 at 8:11 PM, Gerry Archer <arche...@embarqmail.com>wrote: > Why is such heavy oil used in recip aircraft engines? > Gerry > > From: "OK Don" <okd...@gmail.com> > >> I don't intend to find out! >> I did help Dad start a Jacobs R755 radial engine with 50 wt oil in it at >> -30F once though - it took about two hours of a large kerosene space >> heater >> blowing on it before we could turn the prop, much less start it. >> >> >> -- OK Don "They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety." - Benjamin Franklin 1775 "in this world nothing can be said to be certain, except death and taxes." - Benjamin Franklin 1789 2013 F150, 18 mpg 2012 Passat TDI DSG, 44 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
