Fuselage Mount Antenna; Introduction - Honeywell JetWave MCS-8562 Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
(b)
(c)
5.

Fuselage Mount Antenna

A.

Introduction

The OAE FMA assembly will be installed on the top of the fuselage of the aircraft. For the JetWave™
MCS-8562 Terminal to correctly point the antenna, the installation offsets should not exceed more
than 1° off heading, pitch or roll with respect to principle axis of aircraft. Depending on the airframe,
as part of the OAE FMA, the LRUs and assemblies that follow will be installed outside aircraft:
- FMA LRU
- BUC-HPA LRU (if installed outside aircraft)
The exact install location of the ARINC 791 based AIM or LAIM and BUC-HPA is airframe specific.
The BUC-HPA can be installed on the inside or outside the fuselage of the aircraft. Honeywell
recommends to install the BUC-HPA on the ARINC 791 based AIM or LAIM outside the fuselage
of the aircraft.
The radome, skirt fairing, and FMA/BUC-HPA to aircraft interface brackets are airframe specific
and said details are not covered by this manual.
NOTE:
Refer to the FMA outline and installation drawing in Figure 3-11, the BUC-HPA outline and
installation drawings in Figure 3-10. Refer to the interconnect diagrams in Figure 3-12.
Refer to Table 3-7 for special tools, fixtures, and equipment for the FMA installation.
Number
NA
NA
066101
EFFECTIVITY
ALL
© Honeywell International Inc. Do not copy without express permission of Honeywell.
JetWave™ MCS-8562 Terminal
The BUC-HPA can be installed inside the aircraft or external to the aircraft under
the radome. Honeywell recommends that the BUC-HPA is installed external to
the aircraft, under the radome to keep the loss below the value specified in
Paragraph 3.4.C.
The BUC-HPA must be installed close to fuselage mount antenna assembly so
as to minimize the waveguide/coax RF losses on the RF interconnect. Refer to
Paragraph 3.4.C.
The ARINC 791 AIM is intended to be a common design solution across multiple aircraft
platforms. The only variable is the skirt and seal that change with the aircraft specific
fuselage contour.
or
The non ARINC 791 design has a common LAIM plate that is intended to be used
across all platforms. The variables in this design solution are the ring fairing that the
radome attaches to and the LAIM to fuselage interface brackets. The ring fairing is a
design and shape specific to the fuselage contour at the aircrafts installation location,
as are the LAIM to fuselage interface brackets.
Table 3-7. Special Tools for FMA Installation
Description
Hoist system
Torque wrench
5/16" crowsfoot
spanner/wrench
Source
Commercially available
Commercially available
Mountz (CAGE: 0HL78)
23-15-84
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11 Nov 2020