I just received the DLE35RA engine. It's rear exhaust configuration making it much more suited to Pattern applications.

Took a close look at this beastie's from the outside. I really like what DLE has done with the front bearing boss of the crankcase. For openers, it has the same diameter as the prop drive washer. This will make nose ring installation a snap

You might have picked up that some engines, the OS included, have a larger prop drive washer than the front bearing housing boss which necessitates prop drive washer removal to install a one piece nose ring. This hasn't been too big a deal but it requires woodruff key installation as the prop driver is installed

Another very nice touch by DLE aimed directly at the Pattern Market istheir machined front bearing boss; it's perfectly flat the way we have been used to from OS and YS.

Another rather interesting bit is the smaller carburetor venturi than other 30cc class gas engine. Obviously aimed at smoothening throttle response in piped application. I haven't taken this engine apart yet so I don't know what it looks like inside. So far, I like what I see.....