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Old 08-13-2022, 06:49 AM
chris190 chris190 is offline
Join Date: Dec 2012
Location: cambridge, england
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Latecoere 631 flying boat, scratch built

Greetings to all from the really quite ridiculously warm UK!

Looking back, it seems that I finished my last model (SMS Gneisenau) on 11th April and since then I've been working on the design of the Latecoere 631. As with my previous scratch built aircraft, the scale is 1/100 - really quite big enough, possibly a bit too big for this prototype! - and once more, the Draftsight 2d cad programme is being used.

It's a lengthy process and the first months are spent amalgamating and interpreting reproductions of small scale, sometimes blurry original drawings, in this case supplied courtesy of Pascal Parpaite, whose book on this elegant aeroplane and its rather tragic history is the last word on the subject and well worth a read - in French of course! Each original drawing is to a differing scale, meaning that strange factors such as 1:226.83 and 1:171.44 etc. have to be applied to measure off and then draw to 1:100.

Usually, although one can get a reasonable three view result without too much difficulty, it's in the sections of all the elements where a lot of the work lies; fortunately, Pascal's drawings included a factory drawing of two fuselage cross sections from which the others need to be derived and as all information has to correspond in all dimensions, this can be quite frustrating, particularly when it's necessary to get smooth lines running from front to back on the planing bottom and the fuselage topside in both plan, section and elevation.

Then comes the development of components in the flattening out part of the work, also very time consuming, so I've started actual construction work on the fuselage before completion of the design of wings, empennage, floats and engines so as to maintain my interest.

So after five months of the above, here is the fuselage framing substantially complete after a weekend's work! Next stage is to draw out the panels infilling between the formers, since I am intending to use the same hull construction method as GPM used on the Gneisenau which, although rather bigger, gave a nice smooth hull resistant to clumsy handling.

Will post more in due course and perhaps hope for rather more rapid progress! Also keeping up with cereal consumption as the material from the boxes is ideal for framing and infill purposes.

All the best

Attached Thumbnails
Latecoere 631 flying boat, scratch built-latecoere-631-05.jpg   Latecoere 631 flying boat, scratch built-20220813_124539.jpg   Latecoere 631 flying boat, scratch built-20220813_124558.jpg   Latecoere 631 flying boat, scratch built-20220813_124611.jpg  
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File Type: pdf Late 631-Model.pdf (328.2 KB, 47 views)
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Old 08-13-2022, 08:39 AM
Draco's Avatar
Draco Draco is offline
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Welcome to the Flying Boats Team!
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Old 08-13-2022, 10:41 AM
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Don Boose Don Boose is offline
Join Date: Jul 2007
Location: Carlisle, Pennsylvania
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Great project!

The hull framework looks terrific!

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Old 08-13-2022, 11:10 AM
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wireandpaper wireandpaper is offline
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Thank you for sharing, the plane is enormous
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Old 08-13-2022, 11:52 AM
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yankeekilo yankeekilo is online now
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Location: miami
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you are filling a big gap! vert nice model
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Old 08-13-2022, 04:36 PM
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Rata Rata is offline
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Even in 1/100 this lady is going to take up some shelf space. A worthy project that I hope is successful.
''Oh, stop whining! Can't you just print off another one?''- my wife ca 2018
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Old 08-14-2022, 04:06 AM
rifleman rifleman is offline
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this is going to be good cant wait to see more
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Old 08-14-2022, 06:46 AM
Petestein Petestein is offline
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Was this the Latecoere that flew from France to South America via Africa? I have a relative whose mother flew a Latecoere and I would like to confirm which aircraft was.
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Old 08-14-2022, 06:34 PM
leenone leenone is offline
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Great!Another attractive model, l’m waiting for continue。
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Old 08-15-2022, 03:03 AM
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scissorsandplanes scissorsandplanes is offline
Join Date: Jul 2013
Location: Brussels, Belgium
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looking forward to this build.
A long time ago when I was in a 1/300 scale flying boat period, I looked for 3-views of this plane without much success. Good to see you found the information to work with.

good luck
<< Century Scale Rocks, no... Scissors... no, Papers >>
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