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SECTION 9
SUPPLEMENT 5
PIPER AIRCRAFT CORPORATION
PA-28R-201, ARROW
Center the needle to the CDI and you will be on a course direct
to the VORTAC. However, the CDr will display conventional
(angular) cross track deviation of +1- 10° full scale.
(
(2) Push the VOR button again and VORl PAR mode will appear
with linear crosstrack deviation displayed on the CDI as +1- 5
NM full scale (as in RNVI ENR). This permits flying accurately
direct to the station or on a parallel course up to 5 NM either
side of the direct course.
CAUTION
Whenever flying directy to or from a VORTAC
facility, always select either the VOR or
VORl PAR mode.
(f)
Tune an ILS Frequency Without Losing DME
To retain DME, depress the HOLD button. Now select the ILS
frequency using the data input controls and checking it in the
data display. HLD will now annunciate. The distance will continue
to read to the VORTAC and VORl PAR function will remain (
annunciated along with the active ILS function.
Now reselect the same VOR and the ILS annunciation will cancel
and it will revert back to VORl PAR mode. HLD will cancel since
VOR and DME frequency are again the same. The DME HOLD
button will remain depressed (it is a two position button). Thus the
HOLD button functions as a Hold ARM when in the IN position
and actual Hold (HLD) annunciation occurs only when VORl ILS
and DME frequencies are different.
If the HOLD function is mistakenly used in the RNA V modes, as
soon as the frequency is changed, the HLD function will annunci-
ate. DME displays (NM, KT, and MIN) will flag (display dashes)
and the
cm
or HSI will flag since this is not a valid RNAV signal.
Use of HOLD in VOR PAR mode will result in a
cm
or HSI flag
and the DME displays will be to the VORTAC on HOLD.
(g) RNAV Approach
The RNV APR mode may be used for runway location (by placing
a waypoint at the approach end of the runway) during an approach
to an airport.
REPORT: VB-1365
9-26 6of14
ISSUED: SEPTEMBER 15, 1988
(
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