DJSomm1
Member
I had the idea to build a LET L-13 Blanik with master series techniques. In the past, it would have been a one-off build, but now that I have a good CAD program and a needle cutter (See here), I am able to draft a set of plans, and test their accuracy with CNC precision. We won’t know the weight until the model flies, but the wingspan is close to 100 inches. If the build goes well, I intend to release the plans to the community.
This is the start of the fuselage core. Each joggle in the structure indexes to a specific rib. The nose is an open-top box for simplicity, and the tail section is an inverted T to reduce weight. The nose and tail frames index together at former H to form the fuselage core.
Notes for version 2:
• Put a chamfer on each corner to make clearance for the glue joints, and make the slots a hair wider.
• Mark the centers of both the formers and the skins to make alignment easier.
![3C25052D-7E58-4F9C-BB62-A0EC9296C277.jpeg 3C25052D-7E58-4F9C-BB62-A0EC9296C277.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434845_d6301c82d657fc062cfab363d584d33c.jpeg)
This is the start of the fuselage core. Each joggle in the structure indexes to a specific rib. The nose is an open-top box for simplicity, and the tail section is an inverted T to reduce weight. The nose and tail frames index together at former H to form the fuselage core.
![01041780-979E-4686-B1DB-F601BCF990EF.jpeg 01041780-979E-4686-B1DB-F601BCF990EF.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434839_8e3c7fa545f4943d8b716cae40d13293_thumb.jpg)
![A5509758-1CE8-435D-8800-05E23D059643.jpeg A5509758-1CE8-435D-8800-05E23D059643.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434840_d4c1c77243633ed40ccc19e48bc0786b_thumb.jpg)
![5E7ED5B2-2C53-4EC2-A8E8-318E5D24EAE9.jpeg 5E7ED5B2-2C53-4EC2-A8E8-318E5D24EAE9.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434841_2dff02409fd90c53f891e54f286bbccc_thumb.jpg)
![E02AC18D-31C0-4891-BD66-F1CB6268F668.jpeg E02AC18D-31C0-4891-BD66-F1CB6268F668.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434842_33931f883075d719f1ef234d7615a027_thumb.jpg)
![13FF963F-86E0-4D04-B69C-36F87105DF8A.jpeg 13FF963F-86E0-4D04-B69C-36F87105DF8A.jpeg](https://ftforumx2.s3.amazonaws.com/2023/02/434843_d4e9f45f2547dc2998a27e3fa98ab999_thumb.jpg)
Notes for version 2:
• Put a chamfer on each corner to make clearance for the glue joints, and make the slots a hair wider.
• Mark the centers of both the formers and the skins to make alignment easier.
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