Agreed, but the as you are saying, the brake is hydraulic and therefore there
will always be a valve that traps the hydraulic fluid and keeps the pressure on
the brake pistons. This valve will always only be fully closed in the end
position (Just as a tip if you will be using a 'double'). This is standard on
_most_ small aircraft as there is only one predominant supplier for wheels and
brakes for small aircraft. The implementation may be different, the equipment
is the same on every single aircraft.
BTW when I say small aircraft I mean Part 23 aircraft, excluding anything
bigger then a six-seat single turboprop.
Cheers,
Eric
> To: flightgear-devel@lists.sourceforge.net
> From: martin.sp...@mgras.net
> Date: Fri, 9 Mar 2012 11:22:38 +0000
> Subject: Re: [Flightgear-devel] Double Input Resolution?
>
> Eric van den Berg wrote:
>
> > How a parking brake on small aircraft works:
>
> Well, from my experience I'd say there are almost as many different
> types of small-aircraft parking brakes as there are different
> manufacturers. I remember having flown at least six different types of
> small aircraft by three different manufacturers and in these aircraft
> you'll find three or four different implementations (depending on how
> close you look at the details) of a parking brake.
> I'm really talking about different techniques, not just different
> designs or positions of a parking brake handle. The only thing these
> aircraft had in common is that the brake discs (one or two maybe even
> had drums) are being operated hydraulically. Some very light aircraft
> or microlites are having the discs/drums operated directly by the
> Bowden cable without hydraulic transmission.
>
> Therefore, if you're aiming at defining a general rule for mapping
> small aircraft parking brakes, make it as flexible as possible.
>
> > So the parking brake will have two effective settings: open and
> > closed.
>
> Indeed, that's true for _some_ of the small aircraft, but it's untrue
> for some other very popular types.
>
> Cheers,
> Martin.
> --
> Unix _IS_ user friendly - it's just selective about who its friends are !
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