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Geoff's Warbirds Replicas P51 Mustang


Geoff Gardiner
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After a couple of years of exile (having no workshop due to house alterations) I am finally back balsa bashing!

 

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I have a few builds under my belt but this will be my first Warbirds Replicas kit and I have been looking forward to this since the postman delivered it a couple of years ago.

 

Having cut out and labelled all the parts, I am starting with the wing – taking care to make two opposite sides.

 

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More later…

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Bit more work done on the wings.

 

I find the kids lego is great for keeping things square.

 

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Main spar and flap spars fitted.

 

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Leading edge and aileron spars fitted.

 

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The aileron spars in my kit were a bit short so I cut a packing piece from some scrap balsa and glued it to R6.

 

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Half ribs glued to R2 and R6.

 

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More later...

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  • 2 weeks later...

Some more progress with the wings.

 

Glued on the aileron servo trays and the wing dihedral braces (these needed a little trimming to fit).

    

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I have decided to use 6mm silicon rubber sheet to mount the servos on, so I have used the U/C doublers on the other side of the U/C plate to add a bit more strength and give more wood for the screws to bite into.

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Sheeted the upper wing surface up to R2. This will allow me good access to use clamps when joining the wings.

   

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Added the aileron horn mounts to the inside of the top sheet, with some scrap balsa to infill the gap. I then realised that they need to be flush against the inside bottom sheet. So have now removed the infill and replaced with some scrap ply.

 

 

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Started sheeting the bottom of the wing to R1, using the wing cradle for support.

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More later...

 

 

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Edited by Geoff Gardiner
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I have decided to start on the fuselage build because I am getting through the 1.5mm sheet and thought it better to have the correct size pieces for the fuselage sheeting and patch the wing if needed.

 

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Put the battery box and hatch together whilst the sides where gluing.

 

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I will add some more stringers to the hatch (from scrap wood) later in the build.

 

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Fitted the captive nuts to the wing plate.

 

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Started gluing the crutch assembly together.

 

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More later...

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Looks great so far Geoff . 

I am also impressed by your use of giant Lego bricks as set squares . 

Even more impressed by your stock of tinned food . Its nice to know that, in the event of a nuclear armageddon , at least one of our gang would last for more than a few days.

Keep up the good work . 

Richard 

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Bit more done today.

 

Fitted the rear upper formers and spine.

 

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I wasn't sure what to do with the front deck spine, so decided to cut it on the diagonal to help set the angle of the instrument panel former. I didn't put glue on this part as it will probably need to come off when fitting the 3d printed instrument panel.

 

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Glued on the rear deck supports and the square balsa on the underside.

 

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More later...

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My thoughts then turned to the battery box.

 

I am going to be using the ally spinner and 4000mah batteries. From what I have read, this combo can come out nose heavy.

With this in mind, I decided to lenghten the battery box as follows.

 

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I had to remove about 5mm from the sides of the original battery box as the were preventing the hatch from being slid off sideways.

 

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I had to remove the cross piece on the crutch as it was preventing the battery from sliding in.

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More later...

 

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A little more done:

 

Fitted the servos into the fuselage.

 

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Then fitted the snakes.

 

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I then switched back to the wings.

 

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I had to put a slight bend on the retract legs (about 5mm) as they were hitting the spar. I also spent a bit of time making up a cardboard template before cutting balsa.

 

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More later...

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