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Tool roll for Merlin engine.

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Kawasaki Jimbo
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PostPosted: 14:48 - 08 May 2022    Post subject: Tool roll for Merlin engine. Reply with quote

Saw this Tool roll for Merlin engine on display at IWM Duxford which was quite sobering bearing in mind I’ve become a bit of a tool collector. Do I really need ring spanner sets in ratchet, stubby, angled-head and even curved? Laughing
https://i.postimg.cc/rwyWrj5g/DC516743-586-F-40-E6-A3-FA-DD695-BB1302-F.jpg
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Ariel Badger
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PostPosted: 21:08 - 08 May 2022    Post subject: Reply with quote

The sets used at Castle Bromwich, Birmingham also contained a large hammer.
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Ariel Badger
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PostPosted: 21:12 - 08 May 2022    Post subject: Reply with quote

Castle Brom Sculpture By Tim Tolkien.
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B5234FT
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PostPosted: 21:44 - 08 May 2022    Post subject: Re: Tool roll for Merlin engine. Reply with quote

Kawasaki Jimbo wrote:
Saw this Tool roll for Merlin engine on display at IWM Duxford which was quite sobering bearing in mind I’ve become a bit of a tool collector. Do I really need ring spanner sets in ratchet, stubby, angled-head and even curved? Laughing
https://i.postimg.cc/rwyWrj5g/DC516743-586-F-40-E6-A3-FA-DD695-BB1302-F.jpg


Depends if you're trying to work one one, simple device which was designed with service access in mind, or being prepared for all eventualities!

I removed a balljoint with a sawsall the other day, left with no other options....
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stinkwheel
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PostPosted: 23:51 - 08 May 2022    Post subject: Reply with quote

It needs at least 12 more piston ring clips in that kit...
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virus
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PostPosted: 22:05 - 09 May 2022    Post subject: Reply with quote

open ended spanners for ease of use, also the airframe had a life expectancy much shorter than the time it takes to round a bolt off on a service item using open ended spanners not ring spanners. Laughing
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stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.
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Kawasaki Jimbo
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PostPosted: 22:22 - 09 May 2022    Post subject: Reply with quote

virus wrote:
open ended spanners for ease of use, also the airframe had a life expectancy much shorter than the time it takes to round a bolt off on a service item using open ended spanners not ring spanners. Laughing

That’s true, today’s restored Spitfires, etc. are much more carefully and precisely (slowly) constructed than they were in wartime.

I’m still surprised at the implication that every engine came with a tool roll. Surely every ground crew would already have had a full set of these tools and much more?
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stinkwheel
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PostPosted: 23:53 - 09 May 2022    Post subject: Reply with quote

Kawasaki Jimbo wrote:

I’m still surprised at the implication that every engine came with a tool roll. Surely every ground crew would already have had a full set of these tools and much more?


No. This is the military you're talking about. It was a minor miracle if the aircraft and the spare engines landed up on the same airfield.

I know of at least one case where they didn't and the boxed engines (P51 varient) were eventually thrown in a big hole and bulldozed in. Be an interesting archeological dig for someone, they were probably still packed in grease. Although I have a rough idea of where it was and there's a fair chance it's filled with salt water now.
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A100man
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PostPosted: 09:39 - 10 May 2022    Post subject: Reply with quote

stinkwheel wrote:
Kawasaki Jimbo wrote:

I’m still surprised at the implication that every engine came with a tool roll. Surely every ground crew would already have had a full set of these tools and much more?


No. This is the military you're talking about. It was a minor miracle if the aircraft and the spare engines landed up on the same airfield.

I know of at least one case where they didn't and the boxed engines (P51 varient) were eventually thrown in a big hole and bulldozed in. Be an interesting archeological dig for someone, they were probably still packed in grease. Although I have a rough idea of where it was and there's a fair chance it's filled with salt water now.


Reminds me of the guy a few years back who invested millions trying to find buried Spitfires in India (or was it Indonesia?) - I'll make a search..
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A100man
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PostPosted: 09:41 - 10 May 2022    Post subject: Reply with quote

Well maybe not millions and not India (Burma) but still..

https://www.bbc.co.uk/news/world-asia-21483187
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om15
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PostPosted: 19:10 - 11 May 2022    Post subject: Reply with quote

I have two ring spanners manufactured by Blue Point ( became Snap On later on) which came with American built merlins, they are BSF and very well made, I got them around 1980 or so and used them daily when working on RR Dart engines for about 20 years, also on my BSA C15 which was assembled using aircraft BSF nuts and bolts.
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MCN
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PostPosted: 11:21 - 12 May 2022    Post subject: Reply with quote

virus wrote:
open ended spanners for ease of use, also the airframe had a life expectancy much shorter than the time it takes to round a bolt off on a service item using open ended spanners not ring spanners. Laughing


Probably only needed open end spanners as bolts were commonly lock-wired to hold them in place.

High tensile bolts (that accept highmer stress and therefore higher torques which help reduce backing off) may have been prohibitively expensive or difficult to produce for wartime mass production.

Auld stuff has a bit of a hard-on for keeping fasteners in place using locking wire.
Belt and Braces mentality.

More modern stuff uses locking tabs. Cheap and kind of easier to use, especially in mass produced shite.
Now-a-days we use locking compounds or locking compound encapsulated fasteners.

A cool method is a style that caterpillar used to hold stuff on near fast rotating fans. The bolts were a sort of triangular section made of stainless steel. Probably 4 x more expensive than a standard bolt but they never rattled out.
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virus
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PostPosted: 18:59 - 12 May 2022    Post subject: Reply with quote

MCN wrote:


Probably only needed open end spanners as bolts were commonly lock-wired to hold them in place.

High tensile bolts (that accept highmer stress and therefore higher torques which help reduce backing off) may have been prohibitively expensive or difficult to produce for wartime mass production.

Auld stuff has a bit of a hard-on for keeping fasteners in place using locking wire.
Belt and Braces mentality.

More modern stuff uses locking tabs. Cheap and kind of easier to use, especially in mass produced shite.
Now-a-days we use locking compounds or locking compound encapsulated fasteners.

A cool method is a style that caterpillar used to hold stuff on near fast rotating fans. The bolts were a sort of triangular section made of stainless steel. Probably 4 x more expensive than a standard bolt but they never rattled out.



the catapillar one sounds interesting, any pics?

Personally im a fan of lock tabs over chemical/wire methods. mostly because I hate dealing with lockwire. Laughing
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own: 81 xs1100g...
owned: 85 rat CG (sold), 91 GS500e (stolen), 84 gsx400f (scrapped), 81 z250 (siezed, siezed, scrapped), 83 cb250rs (sold), 84 gpz750r ratfighter (killed) 84gpz400 (sold), '80 cb650 ratfighter (wrote off) 95gsx6/12f ratfighter (killed) 91 xj900 (sold)
stinkwheel Well I just had my hands up a pigs fanny. Which makes your concerns pale into insignificance.
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