Ken L
November 7th 20, 07:02 AM
On Sunday, November 7, 1999 at 7:00:00 PM UTC+11, Jim Beasley Jr. wrote:
> Why don't you buy the engine manuals? They will provide the best source of
> information.
> Many motors are direct drive from the starter, and some use an inertial
> starter. That is interchangeable (R1340). The old P-36 used a shotgun
> shell to get it going.
> Phillip Hopkins > wrote in message
> ...
> > I originally posted this on rec.aviation.military, with surprisingly no
> takers.
> > Among my colleagues, we have had much discussion about the methods used in
> > starting large radial engines - though none of us have any real knowledge
> on the
> > subject. We have guessed that some very large engines use a flywheel
> energy
> > storage mechanism which is somehow coupled to the engine crankshaft at
> start
> > time. The suggestion was also made of the use of gas cartridges which are
> used
> > to operate an air motor which turns over the crankshaft, a la the movie
> "The
> > Phoenix" with Jimmy Stewart.
> >
> > ******
> > ******
> >
> > I wonder if someone, who is knowledgeable on the subject, could describe
> the
> > methods used is cranking over large radial engines during starting, such
> as
> > those on B-17s, B-29s, B-36s, even DC-3s. A brief history of radial
> engine
> > starting techniques from the 1920s to the 1950s would also be very
> interesting.
> > Thanks in advance.
> >
> > Phillip Hopkins
> >
> >
> >
> >
> Why don't you buy the engine manuals? They will provide the best source of
> information.
> Many motors are direct drive from the starter, and some use an inertial
> starter. That is interchangeable (R1340). The old P-36 used a shotgun
> shell to get it going.
> Phillip Hopkins > wrote in message
> ...
> > I originally posted this on rec.aviation.military, with surprisingly no
> takers.
> > Among my colleagues, we have had much discussion about the methods used in
> > starting large radial engines - though none of us have any real knowledge
> on the
> > subject. We have guessed that some very large engines use a flywheel
> energy
> > storage mechanism which is somehow coupled to the engine crankshaft at
> start
> > time. The suggestion was also made of the use of gas cartridges which are
> used
> > to operate an air motor which turns over the crankshaft, a la the movie
> "The
> > Phoenix" with Jimmy Stewart.
> >
> > ******
> > ******
> >
> > I wonder if someone, who is knowledgeable on the subject, could describe
> the
> > methods used is cranking over large radial engines during starting, such
> as
> > those on B-17s, B-29s, B-36s, even DC-3s. A brief history of radial
> engine
> > starting techniques from the 1920s to the 1950s would also be very
> interesting.
> > Thanks in advance.
> >
> > Phillip Hopkins
> >
> >
> >
> >