On Thursday 20 Jan 2005 20:10, David Megginson wrote:
> On Thu, 20 Jan 2005 20:06:13 +0000, Dave Martin
> <[EMAIL PROTECTED]> wrote:
> > Is there any way to get a compensated 'TAS' output to drive the ASI
> > because I *think* the B1900D's ASI is compensated (but I must check)
> I'd be pretty incredibly surprised to see an ASI doing that. Some
> ASIs do have a circular sliderule (or similar) around the edge to
> calculate true airspeed, but all ASIs necessarily show indicated
> airspeed because that's what has the most aerodynamic significance for
> the plane (i.e. it's going to rotate, climb, approach, stall, etc. at
> the same indicated airspeeds at 10,000 ft density altitude and at sea
> level, even though the true airspeeds are significantly different).
> What is the density altitude is the TAS for the Beech 1900 specified
> at? 25,000 ft? If so, then divide by about 1.5 to find out what
> number you should see on the ASI.
> All the best,
I couldn't find any further info on the ASI being compensated and you're
undoubtedly right so I will go with that.
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