'Selective Serotonin Reuptake Inhibitor'
This would be what Ian refers to as "a once a day tablet to keep my seratonin levels correct"
They are a group or class of drugs that are frequently prescribed as antidepressants in the treatment of major depression and anxiety.
Fortunately the airline world is more switched onto this than in the past. Many moons ago a freighter made three attempts to land at Heathrow during my tower shift in the early hours, they exhibited what I now know was the symptoms of fatigue reduced performance.
Almost certainly the main culprit if the pain had been causing loss of sleep over a few days. People tend to under rate the serious impact of accumulated fatigue on human performance.
I'd guess that was the Saunders-Roe Princess passenger flying boat you saw. Just a little too late and cancelled by BOAC, unlike the TSR2 which was premature and cancelled by a communistic government.
Saunders-Roe Princess - Wikipedia
Is your source sure about that? I don't recall ever seeing it there in the late 60s, and with no connection at all with Duxford, it doesn't make sense that they would have trucked it all the way from the south coast.
On the topic of the Mallard, according to the "West Australian" today he was about to make a touch and go. I've no idea of the type's SOP, but it doesn't appear to me from any video I've yet seen that he had any flap selected.
See the linked doc, Appendix 8 to calculate.
https://www.eaa.org/en/eaa/aviation-communities-and-interests/homebuilt-aircraft-and-homebuilt-aircraft-kits/how-to-build-an-airplane/selection-articles/~/media/68622b08072841d6b76c8cc7c3d51be0.ashx
My understanding is that full service airlines have a limit of 32kg per item. Excess baggage payment is for when carrying more than the total weight allowed, not for overweight items. In most cases anything heavier must go as freight and no checked baggage. I can't imagine Tiger being any more lenient.
I've read in a number of sources that 10 hours for German engines of that era. Apparently the V-1 aka Doodlebug engine life could be shorter than 30 minutes. Good job they only needed 15 minutes to target.