Jump to content
airscale

1/18 P51C Mustang "Lopes Hope the 3rd"

Recommended Posts

Quote

..the cockpit pod is coming along and represents a lot of the effort in the model..

 

You think so? Wait until you get around to a closer inspection of the Mustangs wheel bay!

:evil_laugh:

 

To see you tackle this mess will be "grosses Kino" as we say over here ;-)

 

Cheers,

J.

 

(Edit: Oops, Mark (dodgem37) already mentioned this. Well then, I second his motion...)

Edited by BlackCanopy
Apologizing for not reading all posts...

Share this post


Link to post
Share on other sites

Seasons Greetings folks :)

 

Happy Christmas to one and all..

 

Just a final one before it all starts as I got out of the cockpit for a bit of fiddling about and hope to spend the nect 10 luxuriant days I have off work doing some proper P51 time :)

 

..first on scaling the spinner drawings we have a bit of a big nose - you can see about 1.5mm too big all around..

 

WIP433_zpsn1mnesxs.jpg

 

We also have an offset carb air intake under the spinner..

 

..oddly its a bit uneven..

 

WIP434_zpsdfmztdrw.jpg

 

..I made some scale templates so I can at least get an idea of where shape work may be needed - these were taken from NA drawings..

 

..the btop one is a plan of the nose, the bottom a side profile and a few others around the chin intake..

 

WIP431_zpsndete6kc.jpg

 

..also got the layout & spacing of the chin carb intake to correct the offset..  (X 4 as I use them at different times..)

 

WIP432_zpslzumgrbz.jpg

 

..getting the chin right...

 

WIP435_zpsp4qy3pwg.jpg

 

..and the top profile at the last former - again a plastic templete from the drawing, although to be fair to HpH I probably made it this rounded while reducing the spinner disc size..

 

..you can see the flat top & 'ears' that need building out with P40 fiuller

 

WIP436_zpsflsmtha9.jpg

 

..as I did a lot of reshaping the nose needed strength so I filled it with Alec Tiranti expanding foam - this stuff sets rock hard..

 

WIP441_zpsmxmqec2h.jpg

 

,and hopefully some of the profiles start to take shape..

 

WIP437_zpsq7gacuwa.jpg

 

WIP438_zpsfrsys0tg.jpg

 

WIP440_zps9cnzzehw.jpg

 

WIP439_zpsh8yh5i8m.jpg

 

Have a great Christmas everyone :)

 

TTFN

Peter

 

 

 

 

Share this post


Link to post
Share on other sites

Way to go on the smiley face Peter.  That is a detail that is very difficult to get right, especially if there are scale issues with the surrounding stuff.  It appears just about right by my eye.  There is actually a NAA drawing that has the loft lines for the fuselage (B/C/D/K), which I searched vainly for.  However the casting drawing was most helpful - 104-310262.  Do not look at it, unless you already have.  No sense trying to find out if you have something wrong.  It already looks great!  BTW, there is a loft drawing for the wing:  106-00006, available in Aircorps Library, if you feel you need it later.

Share this post


Link to post
Share on other sites

Also, when I did Miss Velma, I entirely scratch-built the engine cowling area around the exhaust stacks.  Make extensive use of the drawings in order to get the right cutout, and the sheet metal supports for the stacks themselves, unless you will have shrouds on the stacks,  in which case it would be hidden.  But there is an excellent drawing of the exhaust stack shroud too.  

Share this post


Link to post
Share on other sites

afternoon ladies :)

 

On 12/24/2018 at 6:19 PM, JayW said:

Way to go on the smiley face Peter.  That is a detail that is very difficult to get right, especially if there are scale issues with the surrounding stuff.  It appears just about right by my eye.  There is actually a NAA drawing that has the loft lines for the fuselage (B/C/D/K), which I searched vainly for.  However the casting drawing was most helpful - 104-310262.  Do not look at it, unless you already have.  No sense trying to find out if you have something wrong.  It already looks great!  BTW, there is a loft drawing for the wing:  106-00006, available in Aircorps Library, if you feel you need it later.

 

Many thanks Jay - I think it still needs a bit of fettling but it is better than the wonky version there before - I too could not find the loft drawing David Glen used on his 1/5 scale one so I used the one you mention and a whole load of photo's

 

On 12/24/2018 at 6:25 PM, JayW said:

Also, when I did Miss Velma, I entirely scratch-built the engine cowling area around the exhaust stacks.  Make extensive use of the drawings in order to get the right cutout, and the sheet metal supports for the stacks themselves, unless you will have shrouds on the stacks,  in which case it would be hidden.  But there is an excellent drawing of the exhaust stack shroud too.  

 

 

I have a cunning plan for that actually - I have some 3D printed exhausts on the way from model monkey, have scaled the structure inside the cowlings from drawings and for the exterior panels (that define the aperture shape) I will likely create etched panels for the skins - two reasons - 1) they will be factory spec in terms of outline & 2) they will be a different tone to the rest of the panels which seems common on P51's, I guess they used a different metal / thickness on the real one...

 

so, the Xmas break meant some time at the bench and I am powering on with big structural stuff - it makes a nice change from all the tiny details in the cockpit..

 

..first up, I traced the gear doors from drawings to create a template, cut thisfrom card and used it to create the area to cut out for the main gear bays - this whole process took a day before I was happy with the position as it was at variance with the outline HpH had on the surface so I questioned what I was seeing and doing repeatedly...

 

..you can see the template and the two big holes below..

 

WIP442_zps1yy0atwh.jpg

 

..then it was time to add leg mounts - I did what I did for the Spitfire by braze soldering some brass tube onto brass plates to act as spigots to add lathe turned gear later on..

 

..these were then epoxied into place.. the perspective makes them look a bit out, but even if they are, they will be cut down to stubs just to act as positioning for the MLG later

 

WIP443_zpsb52r5cpg.jpg

 

WIP444_zpsusovcv24.jpg

 

..for the roof of the well, I cut out some black card blanks that fitted, and matched these to drawings of all the stringer & rib positions so I could scribe what goes where onto litho to actually line them..

 

WIP445_zpswkipmtaw.jpg

 

WIP446_zpslfbfhlxs.jpg

 

,,before I could fix the roof position I had to check something...

 

..in the cockpit, the floor where the control stick goes is actually the top of the wing, so I had to make sure the cockpit pod with the floor did not foul the bay roof. To do this I had to get the pod into the fuselage and into position... I had never done this before, so it could all have gone horribly wrong...

 

..thankfully and a few fist pumps later it all fitted fine...  it's tight, but it fits :)

 

WIP447_zpscakiqpfc.jpg

 

WIP448_zpsiebpkt5u.jpg

 

...now I could fix the gear bay roof and you can see how the scribed lines will help position all the structure to go in here (and there is tons of stuff...)

 

WIP451_zpsvnqewws1.jpg

 

WIP450_zpsbmxnygzi.jpg

 

..will probably add the walls then look at other big bits like stabilisers and the air scoop under the wing..

 

feels good to have some wind in the sails and who knows, I may make Telford next year :)

 

TTFN

 

Peter

 

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...