Moderator Comment by Hooks on December 17, 2011 at 8:44am

Bad news: EPO foam version will not be ready untill Marts next year.

The black version you see on pictures is the test version made in EPS foam, this will be released in about one month. So if you pre ordered from BevRC you will get the EPS foam version.

Comment by Nick Scott on December 17, 2011 at 9:31am

Well, I guess I will have to wait until March then!

Comment by Dara Shayda on December 17, 2011 at 12:24pm

Than you Sir

I can use this for my applications, please let us know the purchase prices and times of delivery. Congratulaitons. 

Dara

Comment by Andrew Van Der Plaats on December 17, 2011 at 12:35pm

Hooks,

  Thanks for the information.  Any idea as to what the EPO version is slated to go for and also how they plan to offer it, either as a ARF, kit or what?

 

Comment by Veikko Vierola on December 18, 2011 at 1:32pm

EPS, EPO,  ELAPOR, FLEXIPOR, EPP, etc... I must say that i don't remember which one was what? Does someone know a good link that gives info about the different materials that are on the market;

general description, density, strenght, price, where to get, how to make, how to cut etc...

Comment by tycinis on December 18, 2011 at 2:58pm

http://www.flyingfoam.com/FoamTypes.html

EPO seems the best choice IMHO

Developer Comment by John Arne Birkeland on December 18, 2011 at 3:08pm

EPS - Expanded Polystyrene is the cheap stuff typically used to contain product in packages etc. Very low weight but easily breaks into small pieces, making it very hard to repair. Melts if spray painted or glued using CA.

EPP - Expanded Polypropylene is stronger and feels more like plastic then styrene. Tears instead of breaking into pieces when damaged, making it easier to repair. Popular choice for foam models, but is sensible to UV and can be damaged by long exposure to sunlight. Spray paint and CA glue is hit or miss depending on the quality of the polypropylene.

EPO - Expanded Polyolefin is similar to EPP but perhaps even stronger (more like plastic). More resistant to UV/sunlight, and can be spray painted and CA glued without taking damage. This (or something very close) is what Multiplex calls ELAPOR.

Comment by Dara Shayda on December 18, 2011 at 4:40pm

Hello and thank you for the info. 

I fly in extreme cold temperature northern Canada, I wonder which material is best suited for that climate.

Developer Comment by John Arne Birkeland on December 19, 2011 at 3:09am

I do not know about extreme temperatures, but I have flown an EPO Skywalker and Multiplex Elapor planes in -10C ish temperatures without any problems.

Comment by Andrew Rabbitt on December 19, 2011 at 4:08am

Lots of EPS drinks coolers have survived being up to 100,000 feet and beyond whilst strung below a balloon.  That's -56°C at the tropopause.  I imagine PP will become more brittle at low temperatures, but this might only be a problem if you crash! ;)

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