I’ve donated my father’s ATA logbook to the Maidenhead ATA Association museum where I gather any of them can be studied at ease, whereas if donated(?) to the RAF museum they have to be ordered. I still have his (& mine) civilian log books which I hope my son will take care of eventually.
Keith

I wish I could help more, but RAF 34 was in common usage in the early 1930’s, for example Comper used the RAF 34 for his Kite & Streak, but from information in Flight Global & the 3 view drawings available the section must have been thickened at the root in order accommodate the partially exposed retracted mainwheel. His earlier Mouse had a larger wing & larger wheels & was similarly thickened to about 16 to 17%. (I have just created flight sim models for the Kite & Streak, & am in the process of creating the Mouse). Percival used RAF 34 for the Vega & Proctor, whilst Miles tended to use Clark Y at about 20% TC ratio. So unless detail drawings or specifications are available, the link above is the best info available to my knowledge.
I cannot find any reference to the post war Vickers Viking which I believe used Wellington wings initially.
Keith

Lithium batteries on board that aircraft in same location as flight computers?
Keith

Water/methanol injection, normally used for hot & high airfield take offs.
Keith

I believe that Hoskins cartoons & phrases were WW2 items.
Keith

Terry,
Have you read your PM ?
Keith

From memory, AS countersunk rivets had 120° heads, & I think the Mush heads were of a different profile to the SP series. There were also 70° csk heads that were used on the Valiant, but they were heat treated ( as an apprentice one of my jobs was to reload the rivet container from the heat treatment department every 2 hours!) If they were more than 2 hours old the tails would split open. These 70° heads were riveted proud so that some poor chap afterwards had a compressed air router to mill the heads flush with the skin.
MS rivets have a different head profile apart from the 100° variety; Brazier & Pan head come to mind (which is fading fast!)
120° were generally used in dimpled holes in thin 22 swg or thinner skins, Viscount & earlier had these.
Most of my riveting was done with compressed air hammers that came in various sizes to cater for small or large rivets, (2X, to 6X sizes I seem to remember).
There were also hydraulic ‘scissor’ type riveters as well as manual ones to squeeze the rivet. Squeezing being restricted of course for accessibility reasons, but was preferred design wise as the finished product was considered stronger. There were of course those for snap heads as well as csk one side.
One of the other tricks was to cut the rivet to the correct length, as back then there did not seem to the variety of lengths available.
Keith

You might also find that the ‘lead’ mass balance is ‘GEC Heavy metal’, i.e. depleted uranium. Hope I’m wrong.
Keith