Beagle - or another - the USAF have 3 squadrons in the UK, 50% of the number we'll be down to.
Oh add in 100 Sqn - that bumps it up by another one.
Another stat - Ireland (yes, that military superpower) has ~1,000 personnel in its Air Corps and ~3.5m poulation. The UK is ~17 times larger, which would imply ~17,000 personnel on a parity basis. We will have about 35,000 once SDSR has worked its way through, or only twice the "per population" basis of Ireland. I'd expect a ratio more like 5:1. Oh and they have Maritime Reconnaissance, too.