[Titanaircraft] Re: SLSA for IFR?

--- In Titanaircraft@yahoogroups.com, "pmjohn12000" <pmj1@...> wrote:
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>
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> --- In Titanaircraft@yahoogroups.com, "ls78705" <lstavenhagen@> wrote:
> >
> >
> >
> > --- In Titanaircraft@yahoogroups.com, "daleandee" <daleandee@> wrote:
> > >
> > >
> > >
> > > Roger,
> > >
> > > As you know the Sonex has neutral stability and generally goes where
> > > you point it. I don't find it to be nearly as "hands off" stable as
> > > most of the G.A. trainers.
> > >
> > > Could I fly mine IFR with the Garmin 196? If I have my way I'll never
> > > find that out. The wing leveler would make it much more doable if I
> > > didn't have my way though ...
> > >
> > > Dale
> > > N28YD
> >
> > Just FYI, approach certified IFR GPS's will automatically update waypoints and also increase sensitivity as you approach them. These features usually aren't available on non-certificated GPS's even if they have approaches in their DB's. This is probably the only reason, besides the legal ones of course, ;), that they're not suitable for actually shooting approaches.
> >
> > There may be some other features missing too that I can't remember off the top of my head.
> >
> > As for the autopilot, get a 2-axis if you do intend to fly IFR. Those make enroute travel practically automatic. that way, when it comes time to shoot the arrival and approach you're fresh and didn't have to keep up your scan for 2 hours ;).
> > This is critical in a slow plane due to the length of the enroute legs...
> >
> > LS
> >
>
> LS
>
> Just a quesion from a newbie to aviation. You suggested getting a 2 axis autopilot here. Why not get a 3 axis autopilot? Wouldn't that be better for a slow trip?
>
> Phil
>

Hi Phil,

Not sure there is such a thing actually... but a 2-axis autopilot will maintain both pitch and roll, which is what you really need for flying IFR enroute if you don't want to be pretty tired at the end of the flight.

I.e. enroute when IFR is basically a long period of time flying straight and level, maintaining a heading and an altitude along an IFR airway. You don't want to be doing this manually, maintaining your instrument scan for an hour or more, that'll just wear you out. A 2-axis autopilot can do this duty for you with occasional supervision.

Many autopilots can also be tied into your DG (directional gyro) or the equivalent on a GPS. So you can do course changes automatically with the autopilot by simply dialing in the new heading with the heading bug. The AP will obediently do a standard rate turn to the new heading for you, maintaining altitude if it's a 2-axis.

If you're really current, you can even shoot part of the approach with it ;).

Basically, for IFR ops, an autopilot and preferably 2-axis is practically a must-have if you intend to use the plane for travel. If you're just going to shoot an approach now and then or take short trips you can do without, but not if you're really going places IFR.....

LS

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