EU-1 versus EU-1A?
 

Can anyone give me the history of these two and the differences? MAN lists the EU-1 with a WS of 58" and a length of 67" while PAC has the EU-1A with a WS of 62" and a length of 65". Is the A an evolution of the EU-1 or what?


Thanks,
Mark

P.S. - Boy, winter must be coming. There are sure a lot of questions relating to plans, building and new planes in general. Sure beats the ARF crowd and their latest plastic toy... I love it!:D

RE: EU-1 versus EU-1A?
 

From what I recall, Wayne's original design was wood/foam, and set up for a side exhaust piped engine.

When the design evolved into the RE version there were some refinements in the layout. That is what became the fiberglass version. The results there were outstanding :)

RE: EU-1 versus EU-1A?
 

Thanks for the info Bob. I guess I will be building the original EU-1 then, since I want to build and find PAC's price a bit steep for a fuse and wing core set...

I see that MAN lists the level of difficulty at 4 (their highest rating). What exactly is so hard about it? Wayne Ulery plans are often "interesting" and feature some unorthodox ways of doing things, is this the case here?

Since it's a fairly big 60 size model, would a piped ST91 be a good choice for power? With the pipe, the 91 should have unlimited vertical and awesome speed, even with an 8-8.5lb weight. If it's closer to 9lb, then my Webra 120 would be in order, I think.

Does anybody have any pics of this model, either version?


Thanks,
Mark

RE: EU-1 versus EU-1A?
 

Mark, If I remember correctly Dean Pappas did a project in Flying Models
on the EU-1 (I think the early 80's) which had a lot of good info on
inprovements that could be made. I think the project was for the EU-1A
but you should be able to use some of his mods on the EU-1. You may
want to check it out if you plan on building one.

Ron

RE: EU-1 versus EU-1A?
 

Ron,

Thanks for the tip, I will check into the back issues of FM and see if I can find it.


Mark

RE: EU-1 versus EU-1A?
 

The EU-1 was also a bit larger then the EU1-A. When Dave Scully did the kit he did the restyling and downsized it slightly to make it easier for the engine then to pull it around. I watched Dean fly the original in the 1977 Team Trials and I always thought it flew the best. But it took a ton of power.

RE: EU-1 versus EU-1A?
 

Tony,

Thanks for the input. The power problem is easily solved nowadays, it's great to hear that it flew very well. I have seen several people comment on how well it did rolling maneuvers and I look forward to trying it myself.


Mark

RE: EU-1 versus EU-1A?
 

Take a look at this

http://cgi.ebay.com/AERO-COMPOSITES-...QQcmdZViewItem

RE: EU-1 versus EU-1A?
 

Now how does a 62" plane with a sixty weigh 11lbs?

RE: EU-1 versus EU-1A?
 

Build like the warbird guys do, glass everything, LOTS of paint, use retracts, etc. A bit here, a bit there and it adds up. There is a reason why current planes are fragile and prone to hangar rash.


Mark

RE: EU-1 versus EU-1A?
 

Its a big plane :)

The EU-1A I flew weighed just at 10 lbs.

Flew fine - just had to use some care on those square loops (or avoid the square loops !)

RE: EU-1 versus EU-1A?
 

Wow, 10lb is 1.20 country. Good thing I have a Webra 120 sitting in the basement.:D

The square loops are just a horsepower issue and we now have the answer to that at hand. I may be calling for a tuned muffler, too, Bob.


Mark