In article ,
Mark and Kim Smith wrote:
it ain't a B-17 without a radial engine! BTW, does anyone know if were
there any land or sea applications for the radial motor or was it all air?

A few light cars had radials (generally 3-cylinder) in the 1920s.
Bristol played with the idea of a 10-cylinder, two-row radial for
their post-WW2 venture into care production, but eventually went
with a re-engineered version of the pre-war BMW in-line 6.
One Fairmile D-type motor gunboat (MGB 5001, IIRC) was fitted with
four Bristol Hercules instead of the usual Packards, but actually
went slower because of the power absorbed by the fans providing
cooling. The intention was that she should have been the prototype
for a group of Centaurus-engined boats (which with 2500bhp/engine
instead of 1600 should have shifted), but the admiralty decided
(wisely, in by view) to go with ultra-high-power diesels (the Napier
Deltic) or gas turbines (the Bristol Proteus) instead of trying
to make radials afloat work. Having the tankage of 100-octane
they'd have needed aboard a gunboat was not an appealing idea..

--
Andy Breen ~ Interplanetary Scintillation Research Group
http://users.aber.ac.uk/azb/
"Time has stopped, says the Black Lion clock
and eternity has begun" (Dylan Thomas)