On Tue, 19 Dec 2006, Maik Justus wrote: > Important info for the ch47d flight model. I had expected a large delta3 > effect.
Forgot to mention that the chinooks do however have lead-lag hinges which may have a blade pitch coupling to it, I don't know (yet). We don't have lead-lag hinges in the rotor calculations anyway. (yet -- nudge-nudge wink-wink ;) Speaking of delta-3, I saw a litterature reference giving a hint that Boeing did perform experiments in the mid 60' with a delta-3 rotorhead, but for some reason only on the forward rotor. I've found no evidence that this ever was introduced in production models, not up to the D model anyway. PS. I've finally figured out the LCT algorithm, from studying explicit data on the B model. Flying perfectly level at 60kts now. (Also using wind tunnel data for the fuselage drag at alpha=beta=0.) ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
