How many cyliinders does your Nighthawk have?

[Gene]

I'm curious, how many cylinders does your Nighrhawk have?
I'm sure it's only what is listed, but I might have it wrong, for example, a single cylnder Nighthawk?

[Larry Fine]

Nope, there were two twins, the 250 and 450; the rest were all fours.

[mollusc]

Now, how many it RUNS on -- that may be another question entirely!