Dear Horizon Hobby, please stop using EPS on these awesome planes. Other than that looks great!

Originally Posted by flyrtim

where can I learn about what a 300 size is?

my google search was not so fruitful.

300 size refers to size of brushless motor used,, as in E Flites 300 size zero, or their 300 size p-40 , or their grasshopper . They usually have wingspans ranging from 25 in and up, and can weigh anywhere from 8-11 oz
Here's a link to E Flites most recent 300 size

http://www.e-fliterc.com/Products/De...ProdId=EFL6175

Originally Posted by lomce-what

Dear Horizon Hobby, please stop using EPS on these awesome planes. Other than that looks great!

Originally Posted by Airman74

300 size refers to size of brushless motor used,, as in E Flites 300 size zero, or their 300 size p-40 , or their grasshopper . They usually have wingspans ranging from 25 in and up, and can weigh anywhere from 8-11 oz

Is EPS foam what the UMX Sbach and CC are made of mister answer guy?
Thank you.
Mike

Originally Posted by lomce-what

Dear Horizon Hobby, please stop using EPS on these awesome planes. Other than that looks great!

If they didn't use EPS it would not fly half as good as it does. It would be to heavy with EPO and fly like a HobbyKing plane. At least parts are cheap enough to replace when they start looking ragged

Originally Posted by shastamike

Is EPS foam what the UMX Sbach and CC are made of mister answer guy?
Thank you.
Mike

EPS or expanded polystyrene IS the stiff beer cooler type of foam,, EPP or expended polypropylene is the more spongy type of foam found on some of the bigger parkzone planes,, it typically has a little more give than breaking than EPS but in general EPS is usually a little lighter for a given volume. Then there is EPO or expanded polyolyfin ( not sure of spelling on that one ) some people feel that EPO is best of both worlds,, its has some of the give of EPP but with weight somewhat like EPS, also EPO tends to have a nice smooth surface finish
And yes the CC and Sbach are EPS, as are the 300 zero and p-40,, I'm not quite sure but I believe even EPO is still heavier than EPS

Wow. I learned alot from this thread......first of all 100% of getting this Edge sometime and the proper way to get confused while reading a single post.

-joker

Originally Posted by joker24458

Wow. I learned alot from this thread......first of all 100% of getting this Edge sometime and the proper way to get confused while reading a single post.

-joker

Sorry!!! :-)

Originally Posted by Airman74

EPS or expanded polystyrene IS the stiff beer cooler type of foam,, EPP or expended polypropylene is the more spongy type of foam found on some of the bigger parkzone planes,, it typically has a little more give than breaking than EPS but in general EPS is usually a little lighter for a given volume. Then there is EPO or expanded polyolyfin ( not sure of spelling on that one ) some people feel that EPO is best of both worlds,, its has some of the give of EPP but with weight somewhat like EPS, also EPO tends to have a nice smooth surface finish
And yes the CC and Sbach are EPS, as are the 300 zero and p-40,, I'm not quite sure but I believe even EPO is still heavier than EPS

I'm pretty sure the bigger parkzone planes use a foam like EPO, not EPP.

Originally Posted by zmonster97

I'm pretty sure the bigger parkzone planes use a foam like EPO, not EPP.

Could be,, I always get a little confused between those two
I just know they're NOT EPS like the little ones are

Originally Posted by Airman74

Sorry!!! :-)

lol I just do not get what EPP and EPO and EPS are.........very cunfusing for an 11 yr old brain.

-joker

Originally Posted by Airman74

Could be,, I always get a little confused between those two
I just know they're NOT EPS like the little ones are

Right.

The bigger planes use EPO not EPP. As for the Edge and all the UM/UMX planes, well if they used EPO they'd be too heavy and EPP doesn't allow for much detail and both are heavy and would need more structure compared to EPS.

If you don't crash it won't matter

Originally Posted by kuczy

The bigger planes use EPO not EPP. As for the Edge and all the UM/UMX planes, well if they used EPO they'd be too heavy and EPP doesn't allow for much detail and both are heavy and would need more structure compared to EPS.

If you don't crash it won't matter

yes!

It's typo time again...
rc

That box must have come from precision aerobatics lol!