3D models of t-foils and dagger boards.

[ross_burkin]

Does anyone have any 3D models of a t-foil and a dagger board that I can have? Preferably for free, I guess there would designer royalties on foil shapes.

The intention is to CNC the profiles at college. Most file types are supported by our programming software (AlphaCam).

Thank you!

[roland_trim]

Ross, it will not take you very long to draw some up. For ready brew then Kevin E. is your man - his royalty vs time invested ratio makes it worth investing in....

[Phil Alderson]

I did a 3d model of a T-foil a few years ago in Blender, I could have a look, but they don't take long to do.

[Ben Howett]

Ross, if you have something specific in mind id be happy to put it together into a 3d model for you. If your after a standard section it wont take more than 15mins to build a model for the daggerboard - maybe a little longer for the Tfoil depending on design.

Custom section design is another kettle of fish but your into diminishing returns there...

[Andrew Whapshott]

I can do one in Maxsurf fairly easily with a standard section...

[ross_burkin]

Thanks for the replies guys. I'm not totally sure how to go about drawing foils but I guess I could have a go with a bit of guidance.

For the t-foil i'm not after anything special, just a section that works!

Dagger board, ask Stuberry. It'll be for him.

[Ben Howett]

This is a NACA 63a012 section - its a modified 63 series with the concave section removed and a 12% t/c ratio. Its probably not the absolute best section available, but without looking at the numbers I would think its not too far off what youd want.

1600mm span here with a 250mm root chord, going down to 75mm at the tip with a semi-eliptical leading edge and a straight trailing edge.

Is that something like what you were after? Im a bit out of the loop with the current trends for cherub foils...

[Ben Howett]

Your t-foil might look something like this...

This is the same 63a012 vertical section - Root chord 190mm, span 1100mm.
Horizontal foil is a H105 - Root chord 110mm, Tip Chord around 50mm, span 900mm

Again - this is pretty much a first guess - the H105 works as a lifting section, but it can definately be improved on and as with the daggerboard: the dimensions are just pulled out of my head for the time being. I dont think its too far away from the current norm but id need to sit down for a bit longer to work out what id really want.



Your welcome to the 3d files for either of these - just let me know the format.

If you had something else in mind just let me know and il make some updates. It makes a nice break from the usual fair here!

[john_hamilton]

i reckon the joint looks a bit small on that t foil

[ross_burkin]

Thanks Ben, I'll be in touch.