SMS
You don't say where you are. 202 Sqn at Boulmer and 1564 Flt in the Falklands both use the Simms Rainmaker for firefighting, both RAF outfits. Other types use the Bambi Bucket or a belly tank. No great training required as long as you are used to underslung loads and use a modicome of common sense when you start. I am not saying that it is easy, it easy to put yourself in a bad situation but build up experience slowly.
Leopold Bloom may be able to help.
Head Down look out for the flack