Drawings for RR Merlin

goofi · Nov 15, 2010

Hello,
am planning to create a CAD-model of RR Merlin, version 45 and 60-series.

So far, I haven't found any dimensioned drawings needed to create an accurate model. (I've Trumpeter's 1/28 Spit Mk.V and want to replace the engine that comes with the kit as its level of detail is ... improvable.)

Has anyone an idea where to look for dimensioned drawings (of any version)? - Any tip is highly welcome!

Thanks and best regards,
Claus

dairwin · Nov 15, 2010

It sounds like you are making a scale model, so only the external dimensions are needed. The MkII operations manual has a dimensioned drawing. Whilst the M45 is different (carb is main external difference) the drawing, plus photos, should help you scale the differences.

The M60 is a 2 stage engine and differs more significantly, however from the front of the wheelcase forward there are similarities.

Shinpachi · Nov 15, 2010

Isn't this site helpful?

Azimech · Nov 15, 2010

Are you planning on using a 3D printer?

goofi · Nov 15, 2010

Hi dairwin,
yes, external dimensions are needed. Which "MkII operations manual" do you mean? Merlin or Spitfire? I plan to model both versions. As many dimensions as possible are desirable but the basic dimensions (giving also the scale of the drawing) would be much help already. As the basic engine remained the same, every Merlin version is of interest.

Hi Shinpanchi,
thanks for the link. The homepage has got pictures of the castings which are quite helpful in understanding the configuration of the engine. The drawings look quite good but are drawings of a functional model which does not claim to be 100% accurate. (The length given in the drawing does not match the length of any Merlin version - scale taken into account)

Hi Azimech,
yes, that's the plan.

Thanks for all replies!
Claus

rrmerlin60 · Nov 16, 2010

Hi Goofi;

Dimensioned drawings of Merlin parts and assemblies are actually a bit challenging to come by, especially in maintenance manuals. I suppose you could get the microfilm rolls from the Smithsonian, but they are not cheap.

However, over the last 30 years, I have collected every image and every drawing of Merlins that I can get my hands on, and I have many with dimensions. Some are assembly dwgs, others are just single components like con rods, so I suspect that you get some use out of what I have.

Give me some idea of what you'd like to see first and I'll dig up what I have. It's best to email me at tom.kay@nrc.gc.ca since I don't check into this site as often as I should. In fact, I forgot I was already a member when I went to register today. I guessed I joined a couple years ago. Also, cc all email to my home at nkay@rogers.com as I have all my Merlin info there.

I'll help where I can.

Cheers, Tom.

dairwin · Nov 20, 2010

goofi said:
Hi dairwin,
yes, external dimensions are needed. Which "MkII operations manual" do you mean? Merlin or Spitfire? I plan to model both versions. As many dimensions as possible are desirable but the basic dimensions (giving also the scale of the drawing) would be much help already. As the basic engine remained the same, every Merlin version is of interest.

Claus

Merlin MkII Operations manual. See attached screen dump.

DAI

goofi · Nov 21, 2010

Hello dairwin,
many thanks, this drawing is very helpful to me!

cheers,
Claus

brewerjerry · Nov 26, 2010

Hi
And a second thanks from me I have been after one of these for ages.
Now I only have to find one for a merlin XX.
cheers
Jerry

dairwin · Nov 27, 2010

Jerry,

I have drawings on different versions of the XX, but not able to post them here.

What specifically do you need, and I can let you know?

DAI

engine · Jan 2, 2011

Hi
I have a 1940 hand book for the merlin Viii and 30 engine
It has some pull out dimensioned drawings (installation diagrams)
If you still need some information just let me know
Engine

dairwin · Jan 2, 2011

Hi Engine,

Welcome to the forum.

May I ask, is your MkVIII/30 manual the AP1590D and M?

I have Merlin XX diagrams, but brewerjerry has not come back with which XX he is interested in.

DAI

iain510 · Jan 3, 2011

If its any help to anyone, I have a copy of AP1590 G N here, more than willing to copy and send drawings if it helps.
Cheers
Iain

engine · Jan 4, 2011

The manual is a AP 1590D Volume 1 up to section 4
Hope that helps
engine

Rocky1 · Dec 1, 2015

Iain,

Could you please let me have a copy of AP1590 G?

Rocky1 · Dec 1, 2015

Dear Tom,

A friend is building a working scale model of the Merlin and is looking for AP1590G and associated drawings. Can you help pse?

Many thanks

PB

fubar57 · Dec 1, 2015

The top 2 haven't been here for over 3 years.

Geo

Wurger · Dec 2, 2015

Yep...

Crimea_River · Dec 2, 2015

...and, it's a pretty big manual.

Rocky1 · Dec 28, 2015

Iain

Could you pse supply me with copies of AP1590 G Vol I II and III I am helping a friend to build a model of the Merlin XX and need AP1590G.

Thanking you in anticipation.

Yours gratefully

Paul Burt

burtpaul_1@hotmail.com

Drawings for RR Merlin

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