On Thu, 06 Dec 2007 08:03:01 -0700
Ron Jensen <[EMAIL PROTECTED]> wrote:

> On Wed, 2007-12-05 at 16:53 -0800, Syd&Sandy wrote:
> > Hi all ,
> >     In case I wasn't too clear previously   ,what i was proposing for the 
> > gear lever lock was to add something like this to the controls.nas file ...
> > 
> > var gearDown = func(v) {
> >     if(getprop("/controls/gear/gear-lever-lock"))return;
> >     if (v < 0) {
> >       setprop("/controls/gear/gear-down", 0);
> >     } elsif (v > 0) {
> >       setprop("/controls/gear/gear-down", 1);
> >     }
> > }  
> > 
> > to enable gear lever locking , one would just add ...
> > <controls>
> >     <gear>
> >             <gear-lever-lock type="bool">1</gear-lever-lock>
> >     <gear>
> > </controls>
> > 
> > This would stop accidental gear operation on equipped aircraft (and the old 
> > ones with hand cranks )...
> >  
> > IF this is another bad idea , I will just add a setlistener check on the 
> > gear-down property...
> > 
> > Gheers
> > 
> > Syd&Sandy <[EMAIL PROTECTED]>
> > 
> 
> Syd,
> 
> Have a(nother) look at the squatchswitch.nas file in the c182rg.  
> 
> I'm in favor of leaving the default controls.gearDown() simple, as
> opposed to complicating it with a crude locking mechanism.  Aircraft
> designers are free to re-bind it at need, the c182rg actually calls the
> original gearDown function when the safety logic approves.
> 
> In most/all retractable gear aircraft it is possible to put the gear
> control handle in the "up" position while on the ground, leaving gear
> safety devices prevent the gear from moving.  This is generally a _bad_
> _thing_ for a pilot to do.  In FlightGear currently, we give instant
> negative, if unrealistic, feedback by droping the airframe to the
> tarmac. Your proposed patch would unrealistically prevent the handle
> from moving at all.  Your example also creates a fixed landing gear as
> nothing ever clears or resets /controls/gear/gear-lever-lock.
> 
> 
> Ron
> 

Ok I'll take a look ...
I thought it might be a bad idea , but never know till you ask :)
Thanks Ron ,
Cheers

-- 
Syd&Sandy <[EMAIL PROTECTED]>

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