55! Keep up the good work Keith! I am on the list for one. I certainly don't want one even a minute before they are ready, even if that takes into next year to have a strong and stable running ultra light engine. I still gotta figure out what plane to try with it. Might have to have a kit built to really take advantage of the light weight. Something really fun. An engine under 3lbs with that power, who knows?

Joe