Darby Posted August 10, 2018 Share Posted August 10, 2018 A few photos of the Spitfire in the hanger prior to the memorial flypast today. Had an interesting chat with the maintainers and a point to note is that the prop on this aircraft is wooden. That's straight from the horse's mouth so to speak. Hope these images are of use to anybody and the flypast was quite a sight as well. A fitting tribute amongst the glowering clouds above Cornwall today. 6 Link to comment Share on other sites More sharing options...
Troy Smith Posted August 10, 2018 Share Posted August 10, 2018 26 minutes ago, Darby said: Had an interesting chat with the maintainers and a point to note is that the prop on this aircraft is wooden. Neat pics Darby Many of the the WW2 blades were wood based, being a compressed wood composite, Rotol using "Jablo" google found me this, which I'd not see before http://www.enginehistory.org/Propellers/Rotol/rotol.shtml There are other types, this is Jablo The brass sheathing on the leading edge this can be seen here as the paint has chipped as seen here in colour on a Spit XIV if you look closely, note the yellowy nature of the bare metal. Here's a useful image of some blades,showing both the wood construction and the brass leading edge sheaths. Hope of interest 4 Link to comment Share on other sites More sharing options...
Grey Beema Posted August 10, 2018 Share Posted August 10, 2018 Is it an urban myth that the Fleet Air Arm worked out that you could remove up to 4" (100mm) to repair a propellor blade after pecking at the deck without it loosing performance? Balancing them after must have been really difficult I would imagine. Link to comment Share on other sites More sharing options...
Darby Posted August 10, 2018 Author Share Posted August 10, 2018 This a photo of the Rotol label. There was a leading edge protective strip on each blade which you can make out below. 1 1 Link to comment Share on other sites More sharing options...
Simon Cornes Posted August 10, 2018 Share Posted August 10, 2018 I think that I may be correct in saying that the current Jablo blades used on airworthy Spits are made in Germany. Delicious irony! Link to comment Share on other sites More sharing options...
Troy Smith Posted August 10, 2018 Share Posted August 10, 2018 1 hour ago, Grey Beema said: Is it an urban myth that the Fleet Air Arm worked out that you could remove up to 4" (100mm) to repair a propellor blade after pecking at the deck without it loosing performance? Balancing them after must have been really difficult I would imagine. This certainly happened on the early Griffon Seafires, the thrust line on the XV and XVII was lower, so they were more prone to 'pecking' There is mention of the this IIRC, in Seafire - from the Cockpit, but maybe in another Seafire book. Sorry, books not hand to checkn details. @gingerbob may know more. 34 minutes ago, Simon Cornes said: I think that I may be correct in saying that the current Jablo blades used on airworthy Spits are made in Germany. Delicious irony! @Work In Progress has posted this cheers T 1 Link to comment Share on other sites More sharing options...
bentwaters81tfw Posted August 10, 2018 Share Posted August 10, 2018 Imported Hoffman blades for the BoB flight many years ago. Came in as a commercial shipment on a RAFG truck, with a load of other RAF stores. Guess I forgot to enter them separately for duty and VAT 1 2 Link to comment Share on other sites More sharing options...
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