tag:blogger.com,1999:blog-3161362646023574854.post38860129290591002..comments2023-04-20T20:33:20.964+03:00Comments on extremely economical aeroplane by A4 AVIATION WORX: Is Air Power Technologies right in their figures ?Jukka Takamaahttp://www.blogger.com/profile/02645802492774525274noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3161362646023574854.post-51674490102491446052010-11-09T12:49:55.621+02:002010-11-09T12:49:55.621+02:00Steam...is good...so is electric...and H2.Steam...is good...so is electric...and H2.Jukka Takamaahttps://www.blogger.com/profile/02645802492774525274noreply@blogger.comtag:blogger.com,1999:blog-3161362646023574854.post-48647339476145470152010-11-05T18:03:21.514+02:002010-11-05T18:03:21.514+02:00Steamengine?Steamengine?Anonymousnoreply@blogger.com