DG
Canberra WT534 (
PR.7) is the subject of the photo I posted, look closely at the serial. Now there's a thing, eh?
Interestingly WT534 was the first
PR.7 received by 17 Sqn. (The Canberra in Gainesy's pic is WH810).
Plenty of good info from your dad's log book, as Gainesy says,
Royal Flush was
the annual photo recce exercise - a test of operational efficiency - open to all NATO recce outfits.
Sassoon was a Photgraphic Tropy exercise which was only open to RAF recce sqns.
Guest was a monthly exercise the purpose of which was to test the Command's regional air defences. (
Stronghold was similar but tested UK air defences - 17 Sqn took part in one of these in September 1956). Exercise
Amled was a regular exercise to test the Danish air defenses.
The A.D phrase could, I conjecture, be a reference to an Air Defence violation either on an exercise (deliberately) or by misjudgement. Others on this forum will probably tell you correctly though.
The others will probably be "local" exercises flown to develop liason skills between other RAFG sqns and the Army.
Hope these few items help. Why not do a search for the Canberra thread on the PPRuNe mil site and post your query there.