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OUR ENGINE IN MORE DETAIL
Looking at the Frog 349 marine we can see, as with last month’s E.D. Hornet, this
is still a single speed engine with simple spray bar and needle valve fuel regulation.
One can also see that there is no exhaust manifold or silencer and, in these
respects, this is very much a 1950s product. By the ‘60s both of these aspects had
been addressed by Hales and the Frog 349 acquired a simple R/C carburettor and
an exhaust manifold/stub pipe.
Overall, this engine is strongly built in a nicely cast crankcase and it exudes
quality, as well it ought, at a price of 99 shillings c1960. Well, I think that’s my cue
to bid you all farewell for yet another month. Next
month I’ll be leaving model diesels to look at some
books from the early days of marine modelling.
Until then, there’s just time for me to thank
Michael Beesley for finding me this engine and to
say cheerio for now. MMIhttp://www.marinemodelmagazine.com APRIL 2015RIGHT: The Frog
marine range c1960.month I’ll be leaving model diesels to look at someThe Frog
marine range c1960.Looking at the Frog 349 marine we can see, as with last month’s E.D. Hornet, this
is still a single speed engine with simple spray bar and needle valve fuel regulation.
One can also see that there is no exhaust manifold or silencer and, in these
respects, this is very much a 1950s product. By the ‘60s both of these aspects had
been addressed by Hales and the Frog 349 acquired a simple R/C carburettor and
an exhaust manifold/stub pipe.
Overall, this engine is strongly built in a nicely cast crankcase and it exudes
quality, as well it ought, at a price of 99 shillings c1960. Well, I think that’s my cue
to bid you all farewell for yet another month. Next
month I’ll be leaving model diesels to look at some
books from the early days of marine modelling.
Until then, there’s just time for me to thank
Michael Beesley for finding me this engine and to
say cheerio for now. MMIRIGHT:
marine range c1960.The other side of the engineA close-up of the Frog ‘carburettor’ – a simple spray bar and ventureThe rear view of the carburettorThe domed piston rising in the bore can be seen through the
exhaust stackA view of the serial number on the Frog crankcasep22_MMAPR15_Vintage Chatter Part20.indd 23 9/3/15 10:54:12