FreeFlight RA-4500 User manual

Oct 20/15
ENSTROM 480B OPERATOR’S MANUAL
AND
FAA APPROVED
ROTORCRAFT FLIGHT MANUAL
SUPPLEMENT
RA-4500 RADAR ALTIMETER
* * * * *
REPORT NO. 28-AC-071
HELICOPTER SERIAL NO.
HELICOPTER REGISTRATION NO.
* * * * *
THIS SUPPLEMENT MUST BE CARRIED IN THE
HELICOPTER AT ALL TIMES IF EQUIPPED WITH THE
RA-4500 RADAR ALTIMETER. CHAPTERS 1, 2, 3, AND
4 ARE FAA APPROVED.
FAA APPROVED BY:
TIMOTHY P. SMYTH, MANAGER
CHICAGO AIRCRAFT CERTIFICATION OFFICE
CENTRAL REGION
FEDERAL AVIATION ADMINISTRATION
FAA APPROVAL DATE:
PROPRIETARY
The information contained herein is proprietary to The Enstrom Helicopter
Corporation and shall not be reproduced or disclosed in whole or in part
for any PURPOSE except when such user possesses direct, written
authorization from Enstrom Helicopter Corporation.
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Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT i
Rev.1
Report No. 28-AC-071 Mar 16/18
LOG OF REVISIONS
Rev.
No. Date FAA Approved
- Mar 28/16 R. D. McElroy
1
Approved by the Manager,
Southwest Flight Test Section, AIR-713
Federal Aviation Administration
Ft. Worth, TX
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ii ENSTROM 480B RFM SUPPLEMENT
Rev.1
Report No. 28-AC-071 Mar 16/18
EASA LOG OF REVISIONS
Rev.
No. Date EASA Approved
FAA Approval
on Behalf of
EASA
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ENSTROM 480B RFM SUPPLEMENT iii
Report No. 28-AC-071 Oct 20/15
ROTORCRAFT FLIGHT MANUAL SUPPLEMENT
RA-4500 RADAR ALTIMETER
TABLE OF CONTENTS
CHAPTER DESCRIPTION PAGE
Supplement Cover Page
Log of Revisions ..........................................i
EASA Log of Revisions ...............................ii
Table of Contents......................................iii
ListofFigures...........................................iv
List of Tables ............................................iv
List of Effective Pages ...............................v
INTRODUCTION
Intro-1 General ......................................... INTRO-1
Intro-2 Definition of Abbreviation .............. INTRO-1
CHAPTER 1 OPERATING LIMITATIONS
1-1 General ................................................. 1-1
1-2 Software Version.................................... 1-1
CHAPTER 2 NORMAL PROCEDURES
2-1 General ................................................. 2-1
2-2 Before Starting Engine........................... 2-1
2-3 During Flight......................................... 2-1
CHAPTER 3 EMERGENCY PROCEDURES
3-1 General ................................................. 3-1
3-2 Abnormal Procedures ............................ 3-1
CHAPTER 4 PERFORMANCE DATA
4-1 General ................................................. 4-1
CHAPTER 5 RESERVED
CHAPTER 6 WEIGHT/BALANCE AND LOADING
6-1 General ................................................. 6-1
CHAPTER 7 SYSTEM DESCRIPTION AND OPERATION
7-1 Description............................................ 7-1
7-2 Power-On .............................................. 7-3
7-3 Operation .............................................. 7-3
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iv ENSTROM 480B RFM SUPPLEMENT
Report No. 28-AC-071 Oct 20/15
ROTORCRAFT FLIGHT MANUAL SUPPLEMENT
RA-4500 RADAR ALTIMETER
LIST OF FIGURES
FIGURE DESCRIPTION PAGE
7-1 RA-4500 System Interface ......................7-2
7-2 RAD-40 Display Panel ............................7-2
LIST OF TABLES
TABLE DESCRIPTION PAGE
Intro-1 List of Abbreviations...................... INTRO-2
1-1 Approved Software Version .....................1-1
7-1 Altitude Display Sensitivity.....................7-2
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ENSTROM 480B RFM SUPPLEMENT v
LIST OF EFFECTIVE PAGES
Rev.1
Report No. 28-AC-071 Mar 16/18
PAGE DATE
i Mar 16/18
ii Mar 16/18
iii Mar 16/18
iv Oct 20/15
v Mar 16/18
vi Oct 20/15
INTRO-1 Oct 20/15
INTRO-2 Oct 20/15
1-1 Oct 20/15
1-2 Oct 20/15
2-1 Oct 20/15
2-2 Oct 20/15
3-1 Oct 20/15
3-2 Oct 20/15
4-1 Oct 20/15
4-2 Oct 20/15
6-1 Oct 20/15
6-2 Oct 20/15
7-1 Mar 16/18
7-2 Mar 16/18
7-3 Oct 20/15
7-4 Oct 20/15
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vi ENSTROM 480B RFM SUPPLEMENT
Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT INTRO-1
Report No. 28-AC-071 Oct 20/15
INTRODUCTION
Intro-1. General
This supplement contains the operating instructions,
procedures, and limitations for the RA-4500 Radar
Altimeter.
The supplement is divided into two basic parts, the FAA
approved RFM Supplement and Supplemental Data
provided by the Enstrom Helicopter Corporation (Enstrom).
Chapters 1, 2, 3, and 4 make up the FAA approved RFM
Supplement. It is required by Federal Regulations that this
supplement be carried in the helicopter at all times if the
RA-4500 Radar Altimeter is installed.
For additional information regarding the supplement
format and text emphasis or definitions, refer to the Basic
Flight Manual.
Intro-2. Definition of Abbreviations
Abbreviations noted in this supplement are listed in Table
Intro-1.
Table Intro-1. List of Abbreviations
AGL Above Ground Level
CCW Counter Clockwise
CW Clockwise
DH Decision Height
FAA Federal Aviation Administration
LED Light Emitting Diode
RFM Rotorcraft Flight Manual
RX Receive
TX Transmit
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INTRO-2 ENSTROM 480B RFM SUPPLEMENT
Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT 1-1
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
CHAPTER 1. OPERATING LIMITATIONS
1-1. General
Refer to the basic RFM.
NOTE
The radar altimeter system surveys the
ground directly below the aircraft and should
not be relied on as a forward-looking device.
1-2. Software Version
The system must utilize the approved software version
listed in Table 1-1.
Table 1-1. Approved Software Version
Component Approved Software Version
(or later FAA approved version)
RA-4500 300A
RAD-40 0200
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1-2 ENSTROM 480B RFM SUPPLEMENT
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT 2-1
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
CHAPTER 2. NORMAL PROCEDURES
2-1. General
Refer to the basic RFM
2-2. Starting Engine (ref. basic RFM paragraph 2-19)
1. Check that the RAD-40 switch is set to ON.
2. After avionics master switch ON, check the RAD-40
status display sequence as follows:
a. During the self-test mode the altitude field displays
a box as shown below.
b. When the altimeter unit detects a locked signal, the
altitude field displays the altitude.
2. Set decision height (DH) (or during flight), as required.
2-3. During Flight
1. Above 2,500 feet AGL, the radar altimeter will unlock
and the RAD-40 will display four dashes. The radar
altimeter may attempt to relock. If this occurs, the RAD-
40 will intermittently display a random altitude, which
will be obviously erroneous.
a. The RAD-40 display may be turned off above 2,500
feet AGL by switching the RAD-40 switch to OFF
and then back to ON when operation below 2,500
feet AGL resumes.
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2-2 ENSTROM 480B RFM SUPPLEMENT
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT 3-1
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
CHAPTER 3. EMERGENCY PROCEDURES
3-1. General
Refer to the basic RFM.
3-2. Abnormal Procedures
1. Four dashes in the altitude field are displayed if the
altimeter cannot guarantee the validity of the altitude.
If this occurs below 2,500 feet AGL:
a. Check for terrain, pitch or roll attitude, and descent
conditions and adjust as required to re-establish a
locked signal. (See paragraph 7-3.)
3. The word “Err” in the altitude field and an error code in
the DH field are displayed in the event of a system error,
timed-out altimeter communication, an out-of-range
altitude, or a test failure.
a. Refer to other alternate altitude source or visual
observations.
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ENSTROM 480B RFM SUPPLEMENT 4-1
FAA Approved: Mar 28/16
Report No. 28-AC-071 Oct 20/15
CHAPTER 4. PERFORMANCE DATA
4-1. General
Refer to the basic RFM.
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4-2 ENSTROM 480B RFM SUPPLEMENT
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Report No. 28-AC-071 Oct 20/15
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ENSTROM 480B RFM SUPPLEMENT 6-1
Report No. 28-AC-071 Oct 20/15
CHAPTER 6. WEIGHT/BALANCE AND LOADING
6-1. General
Refer to the basic RFM.
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6-2 ENSTROM 480B RFM SUPPLEMENT
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