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Author Topic: JD-2 Dyke Delta - FOAM Build  (Read 206 times)

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Offline bweaver

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JD-2 Dyke Delta - FOAM Build
« on: January 21, 2019, 11:42:16 am »
While being unable to attend this months build class, I thought I would share what my next FOAM 'stand way-off scale' project will entail. (Yes, @Frank v B , it will be made of foam and other composites and materials.)

I am going to construct the main 40 inch span wing core out of half inch blue foam. The remainder of the aircraft's frame and structure will be built out of a variety of foam type materials, along with light ply and very little balsa, if any.

I have found plans for a balsa 40 inch built-up JD-2 model on the internet, that I am going to use as a guide to help me along with this project.  To further assist me I have also found where some other modellers have constructed this and similar models while also using foam.  That's right Frank, I am not alone.

Further, I will not be ashamed to copy or extract tips from others past experiences, knowledge and building/construction techniques.  Isn't that what is all part of this fantastic hobby?

Unfortunately However, due to my current circumstances I am unable to start the construction project (except for in my mind) for at least another 3 or 4 weeks, but once I do, I will post the progress as it proceeds. 



 



Offline piker

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Re: JD-2 Dyke Delta - FOAM Build
« Reply #1 on: January 21, 2019, 03:25:38 pm »
Very cool.  Looks like a Warwing!

Offline sihinch

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Re: JD-2 Dyke Delta - FOAM Build
« Reply #2 on: January 21, 2019, 05:03:25 pm »
Good luck Bruce! It’s a cool project.

Offline Frank v B

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Re: JD-2 Dyke Delta - FOAM Build
« Reply #3 on: January 21, 2019, 08:24:23 pm »
Bruce

re: "That's right Frank, I am not alone."

You miss us already!!  Poor Katie! ;)

It is interesting that the photo clearly shows reflex in the outboard wing panels.  When Dr. Keith Shaw did a presentation at the EMFSO AGM wwaaayyy back, he mentioned that the Northrop flying wing (YB-49) had 7 degrees of wash-out at the tips.  Interesting to see the reflex airfoil in the photo of your delta.  Don't forget to add it if you don't want the elevons to have about 4 degrees of "Up".

The washout in the wingtips is visible at 1:32 and 1:51 run time

Happy dreaming and building.

Frank
« Last Edit: January 21, 2019, 08:38:11 pm by Frank v B »
"Never trade luck for skill"

Offline bweaver

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Re: JD-2 Dyke Delta - FOAM Build
« Reply #4 on: January 22, 2019, 10:29:44 am »
Still thinking!   ;)

Offline bweaver

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Re: JD-2 Dyke Delta - FOAM Build
« Reply #5 on: February 20, 2019, 02:05:24 pm »
Back to reality and the cold and snow.  It truly is great to be home.  I only miss the WARM sun and the soft clear blue water.

As previously mentioned I have found PD full size plans through Aerofred.  I downloaded the file and took it Staples where they printed out the full size plans at a cost of close to $l0 per sheet and a $3 set up fee. So for $23.52 cents I am set to go.

Now I have to go around my house and find all the sheets of foam I have hidden for some time behind furniture, wall units, in closets, etc.  Once those have all been compiled, it's time to start building.