Foster Area Navigation System - Cessna TR182 1979 Pilot Operating Handbook

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
FOSTER AREA NAVIGATION
(TYPE
511)
SUPPLEMENT
FOSTER AREA NAVIGATION
SYSTEM
(Type 511)
SECTION 1
GENERAL
The Foster Area Navigation System (RNAV - Type
511)
consists of a
511
Area Nav Computer, a compatible VHF navigation receiver, a DME
Adapter Module and DME.
The RNA V
511
is a basic Area Navigation Computer with two thumb-
wheel programmable waypoints. It performs continuous computation of
triangulation problems.
The VOR and DME equipment in the aircraft provides information to
the computer on aircraft position relative to the VORTAC station. A
waypoint is dialed into one set of waypoint thumbwheels by inserting the
RADIAL and DISTANCE of the waypoint (the position the pilot would like
to fly over, or to) relative to the VORTAC station. TheRNAV
511
computer
calculates the Magnetic Bearing (BEARING) and Distance (RANGE NM)
from the aircraft to the waypoint repeatedly to provide continual informa-
tion on WHICH WAY and HOW FAR to the waypoint.
The pilot
can
rn onf.tor-
BEARING
and
RANGE
on
RNA
V 511 to fly
straight line paths to waypoints up to 200 NM distance from the aircraft
position. Waypoints can be precisely dialed into the thumbwheels to
0.10
and
0.1
NM resolution.
The RNA V
511
also provides immediate position orientation relative
to theVORTAC (VOR/DME) station being used for computation. Merely
press the VOR./DME pushbutton to display the RADIAL and DME distance
from the VORTAC.
Another feature of the RNA V
511
is its ability to provide evidence of
proper computation in the system. The system can be tested at anytime
before flight or while airborne to confirm proper computer operation. An
acceptable "test" is evidenced by the active waypoint's RADIAL/DIST-
ANCE being displayed in the BEARING and RANGE windows of the
RNAV
511
while TEST pushbutton is l-ressed. In addition to the "test"
feature, diagnostic functions are provided to alert the pilot
of
why the
system is not functional.
1 October 1978
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