As far as I know, the LDIII is a 2m pattern aircraft. In perusing what little research on various pattern models, I didn't find a whole lot of info on the LD3. The hobby shop in England that sells the plans for it didn't have a description. It's my understanding it was designed for the 1.40 class engines as Renegade mentioned, and was from the mid to late 90's. The hobby shop that sells the plans also has a cowl, wing, and tail available, but I'm not sure why the tail needs to be available separate, since I haven't seen the plans. Shipping is too cost prohibitive though. I think I'll order the plans anyway, just because! If I build this, I don't want to shell out the bucks for a high end YS or OS engine, and would rather get a nice calm saito 4 stroke or a non-pipe 2 stroke.

The other planes I'm talking about, are older designs, with the Gitano and LDII being published in RCM in 1994. 2 stroke .60's, but I'm not sure if either uses a pipe, I'll have to wait for them to arrive.

ETA: Just noticed that the LDIII plan is listed under "electric" on that website, but mentions a 1.40 under power requirements.

[link=http://www.myhobbystore.co.uk/product/17808/rc1877-loaded-dice-iii-plan]LDIII plan[/link]