I'm halfway through the Aircrew selection process for the FAA at the moment. Basically, you can get onto the internet, or go to your nearest AFCO and tell them you're interested in joining. They'll sort you out with a couple of interviews so they can answer questions, and ensure you're entirely committed to joining. The minimum requirements are 140 UCAS points, which works out to something like 3 E's at A2, and 5 GCSE's.
They'll then give you the application forms for you to fill in. Once these have been sent off, you'll be given a date for your Flying Aptitude Tests at RAF Cranwell. These basically entail sitting at a computer for about 6 hours doing various coordination, numeracy, verbal reasoning and reaction tests. There are 3 different tests, the Pilot tests, Observer tests, and the Air Traffic Control tests, but they are all combined into one. You'll have to be at Cranwell for 4 o'clock, and you'll leave the next day at about 3 o'clock, having been told whether you've passed or failed. For pilot, you'll need to pass all three.
Depending on whether you gained a strong enough pass or not, you'll then be called forward to the AIB (Admiralty Interview Board) at HMS Sultan in Gosport, near Portsmouth. This is a three day long officer selection course, which potential officers for any branch of the RN have to go through. Each selection board has 4 candidates. The AIB entails leadership tests, interviews (personal & reasoning, service knowledge etc.), written tests on current affairs (maybe, do not know whether they are still a part), verbal reasoning, literacy, numeracy etc. You'll also have to do a fairly basic fitness assessment: around level 9 on the bleep test, about 25 press ups, 30 sit-ups(?). At the end of this, you'll be told whether you passed, whether you have a strong pass, or if you've failed. If you gain a strong pass, it's fairly likely you will be offered a place. If you gain a pass, you may be offered a place. Depending on how badly you failed, they may ask you to return and try again.
I hope that helped,
Al
