Try
http://www.harrier.org.uk/history/ and
http://www.raf.mod.uk/history/no1.html
You could also try contacting TPs at Boscombe Down (Wiltshire); I'm sure they'd love to share some knowledge and experience (one of them made a mistake in the not too distant past and crashed a harrier - sorry GL). The alternative is to ask for information from one of the squadrons operating the harrier - see the RAF web site.
I once had the pleasure of being at a squadron dinner with Cecil Day-Lewis. After lying about his age to get into the RFC he was flying over France in WW1 (same sqn as Albert Ball VC) doing recce and artillery spotting, which was a significant advance in the conduct of warfare. Whilst flying up and down the lines he described experiencing some severe turbulence which turned out to be a 16" shell whistling past his aircraft!
Email me if you have any non-harrier requests and I'll see if I can help.