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Re: Christer - Spitfire response from 24 October

Posted by PeterA on Sun Oct 27, 2002 06:43:54 PM

In reply top Re: Christer - Spitfire response from 24 October posted by Christer on Sun Oct 27, 2002 11:16:22 AM

Christer,
Spitfire propeller components carry a premium because of the rarity. Hubs have become extremely difficult to obtain free from 'nogo' corrosion and stress cracks. At great expense new hubs have been manufactured in the past. If you want a certified propeller for your 'new' Spitifire that is the oprder of the cost. Merlin engines on the other hand are still out there in various type numbers and typically a short or long Merlin that could service the needs of a Mk V or IX could be found for between ?5k and ?10k paying more for specific types. These uncertified core engines are then introduced into the overhaul chain production line in the US for full strip inspection and replacement as necessary. Bearings, cams, liners, journals etc with the re-use of parts that are still within manufacturer limits. Ancillary components would be sent for specialist overhaul or replaced - magnetos, carb, pumps, harness etc,
In military and airline service these engines were lifed in theory for 500 hours or more. Typically a Spitfire in the UK will fly 25 hours per annum.
You could pay the UK price for a bespoke premium service engine overhaul. Your choice.
Peter

: Peter,
: thanks for the information and your time to put it togethe
: r!
:
: I had the same thoughts as Tom;
: the Merlin at ?120,000 must be more labour intense than th
: e propeller assembly at ?100,000.
: What?s the respective proportion of labour and bits?n piec
: es?
: The structural doesn?t include systems? or does it?
: Does it include jigging/tooling?
:
: Thanks again,
: Christer

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