[bearoutwest]

Hi Juha,
If you have an interest in the Whirlwind, you probably want both books. I managed to get a copy of the Bowater book recently and am about halfway through. As you would expect, there is a certain amount of crossover repeating of some information; but as discussed above, there is more technical/development detail in the Corduroy book, and a great deal more operational/pilot history in the Bowater book. Quite good companion volumes really.
...geoff