Originally Posted by
pasta
For a deep, if slightly techie, dive into the design of the Harrier, and in particular the Pegasus engine that it was built around, look no further than this excellent book:
https://www.amazon.co.uk/Pegasus-Hea...IRW/ref=sr_1_1
Edit: Looks like it may be out of print, but the Kindle edition is available.
And the Orpheous the Pegasus was built around