Also...if you're not limiting yourself to Yaks...

The PAU/BME Extras are very nice. The AirWild Edge or Extra would be super. The AirWild is the lightest 50cc plane on the market in stock condition. Mine weighed 14lbs 14ozs. Nobody can get lighter than that without spending a bunch of money.

I think some of the Wild Hare planes would be nice also. I'm looking at their V2 Edge but I don't have any personal experience with them.

If you really want a light one... The Great Planes Cap 27% comes in at about 13.5lbs. But it only has an 80" wing span and 1100 some odd square inches. But it flys nice and is a lot of fun. I have the EVO 45 in mine (a little heavier than my DAs) and it handles it fine.

I'm building a Great Planes Ultimate with a DA 50...if you want a biplane...this is a good one.

Lots of choices out there for the DA50. It's a sweet engine.

Thanks
Barry