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Morane-Saulnier Type N, Revell 1:72 - an effort to correct it!


Brandy

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I don't think I need to post a pic of the box and contents of this one, I'm sure most of us are familiar with this oldie! I haven't yet decided on a scheme but since the kit decals are not too accurate colour-wise I'll replace them with after market ones, and if I can find enough reference pics, I'm considering Roland Garros' machine.

 

I chose this from my stash because I wanted something relatively quick and simple after the hassles with the Short (which WILL be finished, I just need a "change of scenery").

Since I got off work early today I decided to dig it out and start checking it against the DF plans....

 

35954637991_c8f55e1751_c.jpg

 

Not bad! The span is almost exactly right, and although the chord is about 2.5mm too deep it's not a major problem to correct. So far so good, until....

 

35954637281_0dedaaa030_c.jpg

 

errr....Houston, we have a problem!!

 

The fuselage is a whopping 11.5mm too long! It is also the wrong shape at the tail (round instead of rectangular section), and about 1.5mm too deep (top to bottom) at the cockpit!
So, start with the easy part - the wings! The trailing edge was relieved of 2.5mm of lovely thin plastic and re-thinned to an acceptable edge, and the tip trailing edges were re-shaped.

 

Shown here with the offending excess after removal!

 

35278638253_44c1514ab1_c.jpg

 

Much better!

 

Now the tricky bit - how to go about correcting the awful fuselage.
I decided to chop the 11.5mm out of the cockpit area. This would also remove the area which was too deep and bring the fuselage to the correct depth. I measured 45mm from the tail and marked the first cut, then a further 11.5mm and marked that. Masking tape was wound round the cut line and further marked with a pencil.

 

Marked up ready to cut:
 

35954637461_e47a9a76f0_c.jpg

 

After cutting the fuselage just a little inside the tape, I simply sanded the ends to remove all the pencil marks - I now knew I had the edges exactly where they were marked and had the correct length!

 

The problem of the plan shape was solved by adding spacers between the fuselage halves - 2mm at the rear tapering to 1mm at the top front and .75mm at the bottom front

 

35278638183_a80b3f4c5a_c.jpg

 

The front end spacers were added separately as I didn't realise at the time that the front would need widening too!

 

After closing the rear part of the fuselage I added the front pieces that were removed earlier:

 

35767522222_cfd80baab3_c.jpg

 

Much better! That's all I've done today as I want to let the fuselage harden properly before any further work. There are still other problems to deal with:

 

The cockpit decking has been reduced in height to match the new shape of the fuselage but it will need shortening by 2mm and narrowing a little so that will be done later. The wings also sit about 1mm too low so I will remove them from their fuselage moulding, lengthen them slightly to allow for the curvature of the fuselage and keep the span correct, then pin them and add them as one piece before I add the cockpit combing. The spinner also needs attention as it is too pointed and not wide enough....

 

So much for quick and simple!
Fortunately I love this kind of modelling so today has been a very therapeutic rest from the trials of putting together the Short's wings!

 

Thanks for looking in!

 

 

Ian

 

Edited by limeypilot
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Touche, M. Hendie! It could indeed, but it's a lot littler! Then again it has a lot fewer parts too! How much detail is there to add to something that had a prop with bullet deflectors....and no electrickery?

Ian

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I had another early finish today so got a bit more done on this. After all the hacking about, the fuselage looked a bit of a mess so I decided I'd try something I've seen, but never attempted - I would skin it with .005" plastic card embossed with the longerons!

 

Here's what I started with:

 

 

35805551011_d2b7959e2c_c.jpg

 

 

 

 

I needed a template so I started to apply masking tape....the first piece lined up along the centre line under the fuselage and wrapped around smoothly until it wouldn't lay flat without wrinkling. It was then cut and another piece added, and so on until I had the fuselage completely wrapped with a nice straight join line along the centre line underneath.

 

 

This wrap was carefully removed, giving me my template:

 

 

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That was then stuck on a piece of .005" card and cut out. I marked the top centre line end points and marked my first longeron on the back of the card with a small ball-point pen. The rest of the longerons were measured of this first one and drawn on. Here's what I ended up with:

 

 

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and more importantly, the front side:

 

 

]35097767584_b6ca6ce04b_c.jpg

 

 

 

 

This one was the first attempt of 3. The problem I was having was that I hadn't got the template square along the underside centreline and therefore couldn't get it aligned properly. After the second attempt, and finally realising where the problem was, I made another template as described above and the resulting card skin was successfully attached to the fuselage. I used Plastic Weld and started along the fuselage spine, working slowly around each side to the bottom.

 

 

Here's what I ended up with:

 

 

35805572481_55934d06a1_c.jpg

 

 

 

 

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It's not perfect but I'm very happy with it and it will stay as it is. I'll let that dry properly overnight before final trimming and tidying up.

 

 

I have also removed the wings from the forward fuselage and added a piece of plastic rod to each to extend the wingspan. That will be sanded to shape when dry.

 

 

 

All in all another fruitful afternoon!

 

 

 

 

Ian

 

Edited by limeypilot
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A little more progress on this. I've added some rudimentary details in the cockpit: longerons, an Eduard PE seat and belts, with a cushion from plastic card, a fuel tank (I painted it, and the inside of the metal fairings around the cockpit, black as I have no idea what colour it should be, but MoS seem to have had a liking for black paint....), rudder pedals and joystick. I also added PE stitching on the left fuselage side, and the carb air intakes (from .016" brass tube). Still need to add a cross brace at the front of the cockpit and a couple of basic instruments.

 

35097724644_2976444608_c.jpg

 

I removed the rear of the cockpit coaming so I didn't have a large "step" in the rear of the cockpit behind the pilot's seat. Headrest will be replaced...the front end of this part has also been shortened by about 2mm

 

35805551921_1f02a2a737_c.jpg

 

The cockpit coaming was then fitted (the gaps have since been filled).

 

35805572531_fa60ea70f1_c.jpg

 

I'm off tomorrow (Thanksgiving here in the US) so should get quite a bit done....

 

Thanks for looking in!

 

 

Ian

 

Edited by limeypilot
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Stunning work Ian. You describe it so simply but it's clear a great deal of innovation and effort is going into this one and will yield wonderful results.

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Thanks Col, it certainly is proving to be a fun build!

Today was another productive day, although a little backwards step in one area....
I blanked off the front end then realised that the fuel tank was too small, so had to remove it and add a piece to the bottom of the fuel tank (it helps hide the void in the front!).
I then decided to do some work on the front end....prop sourced from the spares box and reshaped:
 
35805572711_e052c2d489_c.jpg
 
spinner ditto, (a spare from a MAC Bristol Scout kit). I'll post pics of that when it's finished but so far I've narrowed it slightly and added milliput to the front. I'll mount it on my drill when it's dry and sand it to shape.
I also removed the back plate from the cowling, sanded the outer rear edge to get a better profile, and VERY carefully widened it out a little to fit better. When it comes time to fit it I'll put a small piece of brass rod inside the cowling to hold the proper shape until it's dry. It will still need a little filling around the fuselage sides but should look a lot more accurate.
 
35805572371_bff6fd5ea7_c.jpg
 
Finally, I threw a little paint on the kit engine....
 
35767519802_9e3b837f46_c.jpg[
 
Thanks for looking in....
 
Ian
Edited by limeypilot
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I had a small Monty Python moment with the spinner.......I superglued a piece of brass rod to the back to hold it in the drill...as soon as I touched the sanding stick to it, it fell off and went rolling across the floor. So I tried with thicker plastic rod instead, and that broke, fell off, then went rolling across the floor. So I built a 3rd one, this time with much thicker ally rod superglued in place....it stayed on! Luckily non of them burnt down and fell into the swamp (aka carpet monster's mouth...)

 

So the prop and spinner are now one, gaps around the join will be filled with Mr Dissolved Putty and cleaned up.

 

35805548321_a81d25a4ce_c.jpg

 

 

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After it's all cleaned up I'll add the deflector plates and tie-rods to the back of the prop.
I then decided to make up new tail feathers from .020" plastic sheet. Here they are next to the somewhat sorry looking kit efforts...

 

35549330560_6e3248fd41_c.jpg
 
Next up is fitting the cowling and sorting out the wing mountings....

 

Thanks for looking in!

 

Ian

 

Edited by limeypilot
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The cowling has now been fitted. I used a piece of ally rod to hold it open to the required width while it set, and used a little Mr Dissolved Putty to blend it in and correct the profile. However, I messed up on the underside of the forward fuselage and have had to add a couple of pieces of plastic card and sand them down to correct the profile there.

 

35805550361_3055ce6008_c.jpg

 

All now looks ok with the nose....but I'm not happy with the rear turtledeck. Despite all my measuring, it is about 1mm too high and really obvious when looking at it side on, so it will have to be corrected. This is due to the fact that when I reshaped it originally I wasn't planning on the reskin, so the thickness of the skin threw it off.

 

35549366540_78c964e932_c.jpg

 

I think I'll remove the cockpit side pieces and make a cut all the way to the tail to lower the turtle deck. That will mean another reskin afterwards but it needs to be done.
 I have also added the pushrods to the engine using 0.2mm nickel silver rod. They will be pretty much hidden behind the spinner, but needed to be added anyway.

 

35097724064_e577b918bd_c.jpg

 

So the next job is a huge step backwards: to cut the top of the fuselage off and refit it all again. If I'd taken a little extra time in the first place I could have saved myself a lot of work, but .......oh well!

 

 

Ian

 

Edited by limeypilot
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Thanks Col. I actually got away with sanding it down- there was enough plastic there. However, the reskin is proving troublesome. I've had to remove the nose section as trying to get all the edges lined up was impossible.

Ian

Edited by limeypilot
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OK, folks, here's how she looks now. I managed to sand the rear deck down instead of cutting it open. It did go through in a couple of places just to the right behind the cockpit but a couple of small fillets solved that problem. I ended up doing about 6 skins in total until I got one I was happy with. Since it was the first time I had tried this, the problems ranged from simply not planning it properly (longerons marked in the wrong places), to mistakes in attaching such thin sheet without it softening up too much and leaving marks on the surface....just a matter of practice there!

 

I've added a little Mr Dissolved Putty around the forward nose to blend it in properly - the nose was a little too square at the sides - and now it's ready for some primer to see how much more work is needed.
 

 

35549329420_6c80384ba9_c.jpg

 

 

 

35805548061_9180de88ba_c.jpg

 

I'm very pleased with the way it's turned out, and it was definitely worth the extra work getting it right.
I've got some Misterkit paints on order, including French CDL, but since it's Christmas who knows how long they'll take to arrive from the UK....

 

Thanks for looking in!

 

 

Ian

 

Edited by limeypilot
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Just found this thread Ian, some really fine work you're doing here! I have this kit in the stash, and for some reason it keeps calling to me. I'm afraid though that when it does get dug out and started it's not going to have anywhere near the skill lavished on it that yours is getting!

Looking forward to more,

Keith

PS, could I ask where in the UK you've ordered the Misterkit paints from?

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A small adjustment was needed on one side of the cockpit to even up the sides, plus a little more filling, and sanding to smooth it all out.

 

The pins for mounting the wings have been added, and I have sanded and shaped the wing roots to mate correctly to the fuselage and correct the wingspan. The wings are now at the correct height (about 1mm higher than per the kit). Here are a couple of pics of a rough mock-up to test the fit:

 

 

 

35805550141_e7f8af680f_c.jpg

 

 

 

35097723844_7b27660a46_c.jpg

 

 

Ian

 

Edited by limeypilot
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