On Fri, 17 Dec 2004 07:32:04 -0600, Jon wrote in message <[EMAIL PROTECTED]>:
> On Behalf Of Arnt Karlsen > > > On Fri, 17 Dec 2004 09:22:17 +0100, Gordan wrote in message > > <[EMAIL PROTECTED]>: > > > > > Hi, > > > > > > > Pilots are taught to think in terms of pressure on stick not > > > > displacement. That is part of the reason that the F-16 is built > > > > the way it is. > > > > ..this used to be the doctrine in at least the 1980'ies in the > > RNoAF. > > > > > Thats OK, I agree, with one small change: > > > pilots are not *taught* to think in terms in terms of pressure on > > > stick. It is the natural way of "sensing the aircraft". > > > > ..this is the saner approach. ;-) > > When it comes down to it, there is only a voltage, or a resistance, in > a fly-by-wire system, at least. The FCS computer doesn't really care > what it gets. But it has to know the relationship between what the > pilot is saying and the voltage it is seeing. In some cases the stick > doesn't simply control elevator motion (for example), it commands a > pitch rate, or a normal force, or whatever. The one thing the pilot > can output to the stick - the single thing - is a force on it. There > are standards that state what a pilot can output laterally, on the > pedals, and front/back on the stick. I think that's why the control > law diagrams I have seen use pilot stick force as the input unit. One > hundred percent of the control law diagrams I have seen that include > pilot inputs use force. ..true, in *AF environments you also train people to deal with it, even after combat damage, and there you need these people to _act_ and _act_right_, rather than die figuring out control laws, hence the "sane shortcuts". ;-) -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
