VMC
For background I have 1200+hrs on JPs, ~200 in last 8 years or so instructing for JP groups at North Weald. The bulk was instructing on them in the RAF.
He seems to remember that the RAF required circa 150 hours before letting anyone loose on the JPs
RAF hardly ever measures in hours! They sent people who had never flown before solo in JPs in <10hrs if they were up to it.
I personally don't think that flying a 250kt jet low level once a month for an hour or so is safe
JP3 is max, say 260K S&L, 5 350K, 4 in between. To fly >250K <10K' you need a radar service - interpret "need" as you will
"Low Level" is illegal, and in a JP you'll get caught - they are not that common, and bl**dy noisy! >500' is not Low Level and legal, but pretty anti-social.
They will eat, at current prices, ~£400/hr in fuel. If you troll around at 180K at medium level, you'll reduce that, roar around at 250K/500' maybe double it. Maint costs will probably double the cost/hr, and very much down to how many hours the owners fly. By prepared for some annuals over five digits. Hence why <<
very cheap to join the group>> they need more people to split the annual between
Most guys only fly, say, 10 hrs / year. Training is as per a proper syllabus, thereafter 6 monthly or annual dual checks, all as laid down in CAP 632.
I would quite happily train a 50hr PPL, and if they listen to what you say (and were taught well), will solo in a few hours. I have flown 500hr+ PPLs who will never go solo.
and what their views are of safety, both of the aircraft, hours required and technical knowledge of the aircraft?
Safety: As safe as normal PPL flying, so long as CAP632 / OCM are applied sensibly. If there is a "Problem" same as any aeroplane, the attitude of the pilot.
Hours reqd: as above - PPL + a bit is worthwhile.
Tech Knowledge: Will be covered by instructors, nothing too difficult if you put the work in
HTH?
NoD