Garmin GTN 625 사용자 설명서 - 페이지 3

{카테고리_이름} Garmin GTN 625에 대한 사용자 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Garmin GTN 625 20 페이지. Gps/sbas navigation system as installed in cessna 172r
Garmin GTN 625에 대해서도 마찬가지입니다: 활성화 지침 (46 페이지), 매뉴얼 보충 자료 (31 페이지), 오류 (4 페이지), 사용자 설명서 (22 페이지), 비행 매뉴얼 (49 페이지), 파일럿 매뉴얼 (28 페이지)

페이지 인쇄

1. Overview

1.2

DETERMININg WhEN A WFDE PREDICTION IS REquIRED

The WFDE Prediction Program determines whether the GPS constellation is robust enough to provide a navigation solution

for the specified route of flight. As required (dependent upon type of flight plan, GPS Software (SW) version, and GPS antenna),

prior to departure the operator must use the WFDE Prediction Program supplied with the applicable trainer or route planning

software to demonstrate that there are no outages in the capability to navigate on the specified route of flight (Table 1).

NOTE: If the route of flight requires an alternate airport, multiple predictions may be required (one for the primary and

one for the alternate) to verify RAIM and/or WAAS satellite availability at the primary and the alternate approach.

A WFDE Prediction is required for the following instances (see also Table 1):

• For all Garmin WAAS enabled units (regardless of the GPS software version or antenna model): an FDE prediction is

required for operations where the route requires Class II Navigation (e.g. Oceanic/Remote operation) and GPS is to be

the primary source of navigation per FAA AC 20-138A Appendix 1. The Oceanic/Remote flight phase occurs when the

flight plan will place the aircraft more than 200 nautical miles from the nearest airport. All operators using a Garmin

WAAS-certified unit as primary means of navigation in oceanic/remote areas under FAR parts 91, 121, 125, and 135

must utilize the WFDE Prediction Program prior to conducting a flight in these areas.

• For all Garmin WAAS enabled units (regardless of the GPS software version or antenna model): a RAIM prediction is

required for operations in areas where SBAS coverage is not available.

• For Garmin WAAS enabled units using an unapproved* GPS antenna (regardless of the GPS software version): a RAIM

prediction is required for all flight operations in accordance with the National Aviation Authority guidelines for TSO-

C129a equipment. Examples of such operations include navigation of U.S. Area Navigation (RNAV) routes, Standard

Instrument Departures (SIDs), or Standard Terminal Arrival Routes (STARs) per FAA AC 90-100A "U.S. Terminal and

En Route Area Navigation (RNAV) Operations".

• For Garmin WAAS enabled units using an unapproved* GPS antenna (regardless of the GPS software version): an

operational limitation in the form of a WAAS satellite visibility prediction is required for all LNAV/VNAV, LP, or LPV

approaches.

• For Garmin WAAS enabled units with GPS Software v2.XX or earlier (regardless of GPS antenna model): an operational

limitation in the form of a WAAS satellite visibility prediction is required for all LNAV/VNAV, LP, or LPV approaches.

A WFDE Prediction is not required for the following instances (see also Table 1):

• For Garmin WAAS enabled units with GPS Software v3.XX or later and using an approved* GPS antenna: a RAIM

prediction is not required when operating in areas where SBAS coverage is available.

• For Garmin WAAS enabled units with GPS Software v3.XX or later and using an approved* GPS antenna: a WAAS

satellite visibility prediction is not required for LNAV/VNAV, LP, or LPV approaches.

Oceanic/Remote

Enroute/Terminal

LNAV/VNAV, LP, or LPV Approach

Oceanic/Remote

Enroute/Terminal

LNAV/VNAV, LP, or LPV Approach

Operations outside SBAS coverage

190-00643-01 Rev. E

190-00643-01_0E.indd 3

Route Type

GPS SW Version

2.XX or earlier

3.XX or later

All versions

GARMIN WAAS FDE PREDICTION PROGRAM INSTRUCTIONS

WFDE PREDICTION PROgRAM INSTRuCTIONS

Antenna Type*

WFDE Prediction Required?

Approved/Unapproved

Approved

Unapproved

Approved

Unapproved

Approved/Unapproved

Table 1

YES

2/28/2011 1:24:33 PM