Thank you all for your advice!

Since you all agree Iwill use the Irvine .25 for it. I'm very eager to start building it, but I have two projects before it in the building queue. Also a big thanks for the tips of making lightening holes, I wouldn't have dared it otherwise.

By the way;AA5BY says a .19 is marginal to take off without headwind but nevertheless the box says a .09 is enough (and the radio gear was quite a bit heavier back in the days this one was produced, I believe). Do you think they were hand launched back then, or is the 'promises' about a .09 more of a marketing hype?

/Stefan

P.S. Still no one got the original build article from RCModeler, March 1974?