Gliders > Scale

1/4 scale Opel Rak

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Fred:
Hi there,

New year, new projects ! We start with my new dsign, a 1/4 scale Opel Rak. You can find lots of picture and documents here : http://www.retroplane.net/forum/viewtopic.php?t=413


Sacle : 1/4
Wingspan : 2.50 mtrs
99% wood, the remaining 1% are the aluminium tubes for the tail (12 and 10 mm diameter)

Central Wing section :

Ribs lovers, this model is for you ! 5 formers, and almost 100 ribs ! I can tell you that I'm happy to have a CNC machine ! So, here are all the bits and pieces for the wing :


The building of this central piece is not that easy, mostly because everything is built "in the air" ! So, you really need a good eye for everything to be square ! The spars (4 for each wing) are made using 8x8 pine strips.


Then, well, you just have to add all the other ribs ! :wink:
After nearly 2 hours, you have something like this :

Fred:
The tail booms are attached to the wing / ribs using 3 pieces of plywood that take the aluminium tube (a picture is easier to understand..)



Well, now, you can have a break (tea, coffee, alcohol or whatever you prefer !) and have a look at your latest baby !



So, the central wing part is almost finish. Next, the external wing sections (2)

Fred

Alan_Perse:
Looks great Fred  :D . Looks like an interesting glider, haven't seen that design before. Have you got any other projects going  :wink: .

Fred:
Well.. for now, this one will be enough !  :P
Next one.. Hummmm.. still secret !  :D

Alan_Perse:
Secret Eh!!  :P  :wink:

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