Hi Bertie Thruster & Tucumseh,
Please have a look at the post I made on page 83. It was a response to Steuart Campbell's book, written by Air Commodore John Blakeley.
The Blakeley Report (as it in known) covers quite comprehensively the engineering points you raise and, I hope, answers any questions you may have.
If not, please come back to me.
My best, as always.
Brian
"Justice has no expiry date" - John Cook