Originally Posted by
Allan Lupton
The R4360 and R2800 would have been similar in overall diameter - reducing the number of cylinders/row would make little difference and the cylinder heads were different.
I think the difference in diameter of the engine is not as great as the difference in the cowling. The V-326 (with the R2800) has a big chin inlet; the V-326A (with the R4360, and I hope I've got that the right way round) does not have that lower inlet. A quick eyeballing of diameter of front of cowling against wheel size suggests they are not as different as they at first appear, allowing for that difference, and of course the V-326A cowling is a lot longer, which enhances the appearance of slimness. Anybody fancy a bit of photogrammetry?