hawker_hurricane_mk_ii_a_fighter-1575812

Hawker Hurricane in foam built with a hot wire CNC machine

I’ve been flying and building models for quite a few years now and I much prefer to build my own now.  ARTF are great for a general weekend hack and I have a few but researching and doing your own is what makes the hobby for me.

Why build a Hawker Hurricane in foam with a hot wire CNC machine?   Well as you may have noticed on my website I have built a CNC machine and built a couple of flying wings.  So I was thinking about my next build and the Hurricane seemed a good choice.  I already have a Spitfire and Lancaster and had just recently read Leo Mckinstry’s excellent book on the Hurricane which sort of inspired me to do it.

I’ve used  two pieces of software to  generate the g-code to build the wing and fuselage, Profili2 Pro and Dev Fus Foam

Profili2 Pro is quite an extensive program and has evolved over the years and can do lots of other clever stuff.  It has an option to generate g-code for 4 axis CNC machines and this is what I used for my flying wing.

DevFus Foam will generate the g-code to produce the fuselage sections.  Both are available in Demo versions that are fully working apart from being able to save the g-code. www.devcad.com

What scale to build the Hurricane ?  Well I wanted something that was similar size to my Ripmax Spitfire for ease of storage and transportation so I settled on a 50 inch (1270mm) wingspan.

First video show how the wings are made using Profili2 Pro which now has been replaced by DevWing Foam and the second video show how to use DevFus Foam

UsingProfili2 Pro

Using DevFus Foam

Here’s the build so far.

hurricane-assembled
Test fit of wing and tail to fuselage

hurricane-assembly Elevator Fuse Joined Fuse Motor mount hurricane-motor hurricane-parts Rudder hurricane-tail hurricane-wing-covered1 hurricane-wing-covered2 Wing Top Wing_undeside

 

 

 

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3 Responses

  1. Keith Renecle

    Hi Keith, thanks for all of the great info on the cnc foam cutter. I want to build a similar machine so this info really helps for me to know what to buy and also how to use it all. Just a few questions on the Hurricane build. What type of glue do you use to join it all together? It is obviously something that sands well. Finally, do you cover the entire model with anything like glass cloth or tissue before painting, and if you paint the raw foam, then what kind of paint do you use? Thanks again!
    Regards,
    Keith Renecle
    Darkest Africa

    • Hi Keith
      I use expoxy to glue it all together and because it takes a lot I just get from our Pound shops in the UK.
      On the wing I’ve just used brown paper and PVA glue to cover but on the fuselage I have some Poly C and cloth from here http://www.rcworld.co.uk/acatalog/Poly-C-500ml-PolyC500.html but havent used it yet.
      For painting I then to use emulsion match/tester pots from the local hardware store and spray on with a small air brush. Usually they can match a colour form a book, get some strange looks when I take my wardbird books in. I then use water based gloss varnish to seal and because the tester pots are matt it give a satin finish that’s easy to keep the dust off. I have on some models just painted on the foam and I always use emulsion for that.
      I still haven’t finished the Hurricane but I’m retiring at the end of the year so hope to get it finished then or maybe before with lots of other project and a few repairs.
      Hope that helps, and any question ‘ll be glad to answer
      Where in Africa are you ? I lived in Zambia for 2 years when I was a kid
      Keith

  2. Keith Renecle

    Hi Keith,
    Thanks for the info. I would have thought that epoxy would be hard to sand next to the foam. That brown paper is also used on foam slope soarers but I find it to be rather heavy. I have a roll of teabag tissue and it is almost identical to medium weight silkspan, With the thinned white wood glue this makes a really good covering over foam.

    I live in Centurion near Pretoria. Zambia was most likely more livable when you were a kid! It’s still not as ruined as Zimbabwe.
    Keith R

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