I fly the BME 102 and recomend it for certain applications. I have flown it in a lanier staudacher and currently in a H9 33% extra. Both planes have been in the 25 - 26 lb range.

I would recomend it in the AW edge as that is the wieght range it would come in at.

the DA and 3W have different porting in thier cylinders. those engines seem to have more guts down low or tourque at the low / midrange of thier power bands. the BME likes to run a little higher rpms - I get 6600 on a 26 x 10 mens s. where as the Da ? 3w will turn a 28 x 10 at the same rpm. I have seen the DA pull the heavier cardens at 28 - 30 lbs better than would the BME.

take that info for what its worth. My BME has been very reliable though and has always been happy in the lighter airframes, most of the time out pulling the DA / carden setups

If you are in the columbus area, check with Kurt Koelling as well as Jim Neal. they fly at the wmaa field (alum creek). Kurt has the AW edge with the BME and Jim has the AW with a DA (i think) you might get a better apples to apples comparison from there.

good luck

Hubb