YASim Propeller rpm
Lee Elliott <[email protected]>
| Newsgroups | gmane.games.flightgear.flightmodel |
|---|---|
| Message-ID | <[email protected]> |
Hello all, I'm trying to work out the right prop rpm figures for the TU-114 - the airliner version of the TU-95 'Bear' - and I've arrived at a figure of around 494 rpm for the cruise setting. I'm also using a value of 958 for the takeoff-rpm, which I calculated at 150 kts and 0 ft. This is based on 3.2m radius props and a cruise speed of 475 kts at around 30000 ft. Could someone check my maths and confirm that these figures are about right i.e. the prop tips staying sub-sonic? While I can get the config to solve with these rpm values the stand alone YASim solver seems to go into a loop if I include the min-rpm & max-rpm tags. Is this likely to be due to me trying to use impossible numbers in the config or is this a problem within the solver? TIA LeeE _______________________________________________ Flightgear-flightmodel mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-flightmodel 2f585eeea02e2c79d7b1d8c4963bae2d