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Yep that's the bird I'm working on. The arrival of the remaining wood that we needed was a huge relief. Despite being a non-flyer, our Mosquito will proudly sport the correct spec wood on its airframe.Picked up the Dec 2022 edition of Aeroplane this am which has an article titled "Mosquito plywood problem solved" highlighting some of the difficulties encountered restoring Mosquito B.35 RS700 in Canada. (Crimea_River - Is this the Mossie that you are working on?). This bit is worth quoting:-
"All British and Canadian built Mosquitos used Baltic birch plywood made to 6V3 [a British Standard]. Part of what that means is that every sheet, regardless of its finished thickness, is comprised of just three layers or veneers. The plywood on the Mosquito varies in thickness from 1.5mm to 6mm. That means the veneers are custom-cut for thickness on each sheet. Where it gets even more complicated is that the grain direction is also specified by de Havilland for every sheet used on the aeroplane. In some places it's 'normal' meaning the grain of the two outer layers runs the length of the sheet; some runs crosswise on the sheet and some runs at a 45 degree angle. The grain direction was decided based on the structural stresses on each section of the airframe."
Never mind.Does this home built Spit (gorgeous) have a serial number/builders plate?
I think what you had was most of the load carrying structure (aft of the nose) was made of aluminum and the interior of the wood shell was reinforced with some aluminum structure.Was the problems with wood shrinkage/expansion that could happen on the Mosquito effect the fuselage, wings/tail unit, or both? I'm asking because this didn't seem to be a significant issue on the Vampire or Venom, which operated in various climates and used the Mosquito/Hornet type ply/balsa/ply sandwich material used in those aircraft fuselages in the Vampire and Venom's front fuselage (ahead of the engine mount/fuselage fuel tank area).
The only "bad press" that came out of the Rockne incident were the limitations of wood aircraft in commercial airlines operations.Probably because of bad press mostly wooden aircraft got after the plane crash Knute Rockne died in along with other fatalities in the same incident.
OKAs well as that metal aircraft were more durable and cost effective in a peace time market. Wood came back for combat aircraft in World War II's SHTF situations when there was worries about aluminum shortages. Also, while an airliner was expected/hoped to have a long service life, combat planes may or may not come back from their missions, and hence are sort of throwaway aircraft that may end up having a short life. In that situation, aircraft like the Mosquito and Hornet do make sense.
That lies with some thinking in the Air Ministry. Sometimes you have some individuals who want to be conservative in their approach to an engineering solution, my guess is they were looking at producibility and cost.However, my question is why did the Vampire and Venom persist with using wood in their structure, even though it wasn't as major a structural element as what the wings/tail/engine were joined to, which was aluminum instead of wood. I know that the Air Ministry suggested the use of wood on the Vampire for what wasn't really needed to be metal. But Ronald Bishop (who designed most DH aircraft from 1937-the 1950s) wanted the original Vampire (DH99) to be all metal, but the DH100 was the mixed aluminum and ply/balsa/ply construction that made it to production. Bishop seemed to believe (rightfully so) that metal was the future, but with the Vampire, the Air Ministry were maybe still in SHTF mode with the Vampire, and, maybe, a little blinded by the Mosquito's success.
Possibly because aircraft-quality wood is a fairly scarce resource, but also because wooden construction may be more labor-intensive and more sensitive to environmental conditions during construction. From a design perspective, a metal (or composite) aircraft will have less internal volume taken up by structure.BarnOwlLover You bring up some good questions, but have to ask yourself - even before fiberglass and composites became commonplace in modern combat aircraft construction, why did wood go away?
It is hard to say.Bishop seemed to believe (rightfully so) that metal was the future, but with the Vampire, the Air Ministry were maybe still in SHTF mode with the Vampire, and, maybe, a little blinded by the Mosquito's success.
I do not remember any wood in the Lancaster but certainly wood was common in Spitfires and Beauforts for holding access panels on to the structure. It was also used in early Australian Beauforts for the radio crate and on all Beauforts for the bomb doors and main entry door. The Americans used plywood seats in a number of aircraftSomewhere there is a drawing showing all the wooden "stuff" in a British WW II four engine bomber, I thought it was a Lancaster but I can't find it. Crew seats, radio shelves, equipment shelves, storage, some hatches, a few fuselage panels. Basically stuff that was not dealing with stress.
Yes. If the SHTF right now many countries would be in deep sh-one-t because they have contracted too many of their supply needs to China. Australia keeps its 90 days strategic oil reserves in the USA which would be a problem if China was to attack Aus.Sometimes contracts included thoughts about keeping certain industries in operation in case of future need. A lot easier to scale up production from an existing small company than to restart a company that had been defunct for for several years.
The back part of the nacelles were wood. Had a pic but lost it.I do not remember any wood in the Lancaster.......