1、AEROSPACE RECOMMENDED PRACTICEARP1061REV.AIssued 1971-11Revised 1999-04Superseding ARP1061Altitude Alerting Devices and SystemsFOREWORDChanges in the revision are format/editorial only.1. SCOPE:This SAE Aerospace Recommended Practice (ARP) provides performance criteria for Altitude Alerting Devices
2、and Systems. These devices can be self-contained or receive remote altitude information and can have integral or remote barometric corrections. Only the generation of the alerting signals is covered by this recommended practice and not the details of the visual or audio alerts operated by these sign
3、als. It is recommended that the systems operational correspondence between the selected altitude settings of the Altitude Alerting Device and the Altitude Level Indication normally used to control the aircraft should not exceed 250 ft RSS throughout the operating range of the device.1.1 Range of Alt
4、itude:This recommended practice provides for operational performance up to 80,000 ft of altitude based on pressure altitude, radar altitude or radio altitude in any combination or singular inputs.1.2 This device should contain or accept inputs of altitude, equal to that information displayed and use
5、d by the pilot for height control of his aircraft, in increments of not greater than 100 ft of indicated altitude. This device should provide for audio/visual warning signals when the flight altitude deviates from the preselect altitude or height level and for approaching and/or departing a preselec
6、t altitude level.SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringemen
7、t arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2008 SAE International All rights reserved. No part of thi
8、s publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-497
9、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Reaffirmed 2008-02SAE ARP1061 Revision A- 2 -1.3 Other Parameters:The following is a listing of other parameter inputs which can augment and modify the altitude alerting system in its operation at vari
10、ous levels of flight altitude and landing approach altitudes.a. Altitude Rate of Changeb. Angle of Attackc. Radio Altituded. Airspeed Minimum/Maximume. Mach Number Minimum/Maximumf. Flap Positiong. Landing Gear Positionh. Minimum Decision Height1. Cat. II Series2. Cat. III Seriesi. Auto Land Systemj
11、. Automatic Flight Control and Stability Augmentation Systemsk. Altitude Function Inputs via a C.A.D.C. Systeml. Altitude Rate of Change via INS System1.4 Purpose:This ARP establishes an industry recommended practice for altitude warning devices and systems, when used as an alerting device related t
12、o altitude information normally used for aircraft height control, but not including the remote sources of such information.2. APPLICABLE DOCUMENTS:The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable
13、issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulation
14、s unless a specific exemption has been obtained.2.1 SAE Publications:Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.ARP461B SynchrosARP582A Lighting, Integral, for Aircraft Instruments: Criteria for Design of Red Lighted InstrumentsARP798 Design Criteria for White Incandescent
15、 Lighted Aerospace InstrumentsARP4102/4 Flight Deck Alerting SystemSAE ARP1061 Revision A- 3 -2.2 RTCA Publications:Available from RTCA Inc., 1140 Connecticut Avenue, NW, Suite 1020, Washington, DC 20036.Environmental Conditions and Test Procedures - RTCA Document No. DO-138, June 27, 19682.3 Other
16、Publications:Available from the Superintendent of Documents, U.S. Government Printing office, Washington, DC 20402.Altitude Reference - U.S. Standard Atmosphere 1962Airspeed Reference - NASA TN-D822 Tables3. GENERAL REQUIREMENTS:3.1 Acceptance Criteria:These are test requirements related to aircraft
17、 instruments and are used to establish the individual acceptability of each instrument. Reference to paragraph 6.3.2 Qualification Criteria:These are test requirements related to aircraft instruments and are used to generally establish the quality of the design and manufacture of aircraft instrument
18、s. Reference to paragraph 7.3.3 Materials and Workmanship:3.3.1 Materials: Materials should be of a quality which experience and/or tests have demonstrated to be suitable and reliable for use in aircraft instruments.3.3.2 Workmanship: Workmanship should be consistent with high grade aircraft instrum
19、ent manufacturing practice.SAE ARP1061 Revision A- 4 -3.4 Identification:The following information should be legibly and permanently marked on the instrument or nameplate attached thereto:a. Name of instrumentb. SAE ARP - (show number and revision letter)c. Manufacturers part numberd. Manufacturers
20、serial number or date of manufacturee. Manufacturers name and addressf. Altitude Range, operational signal levels and other input parameters (if applicable)g. Rating (electrical, vacuum, etc., if applicable)h. Aircraft identification (if applicable)i. Environment Category - See code in RTCA DO-138,
21、Appendix Bj. Weight3.5 Compatibility of Components:Both self contained and remote components of an Altitude Alerting Device or System are covered by this ARP. Components that are individually acceptable but require matching for proper operation shall be identified in a manner that will assure perfor
22、mance to the requirements of this recommended practice.3.6 Interchangeability:Instruments and components which are identified by the same part number in accordance with 3.4 shall be directly and completely interchangeable, as defined by 3.5.3.7 Environmental Conditions:The following conditions have
23、been established as design requirements. Tests should be conducted as specified in paragraphs 6 and 7 to insure compliance with this ARP. The instrument should be capable of its intended function throughout the environmental conditions set forth, and the conditions selected should be declared as ope
24、rating limitations.3.8 Interaction Provisions:Operation of the instrument shall not adversely affect interconnected instruments or systems.3.9 Self Generated Signals:The generated signals should be capable of operating alert signals in accord with ARP450C, Flight Deck Visual, Audible and Tactual Sig
25、nals.SAE ARP1061 Revision A- 5 -3.10 Test Provisions:As installed on the aircraft the device or system shall have the capability of being tested, without the usage of special test equipment, to assure that the essential alerting signals are properly operating.3.11 Explosion Category:The instrument c
26、omponent, when intended for installation either in uninhabited areas of non-pressurized aircraft or in non-pressurized areas of pressurized aircraft, should not cause an explosion when operated in an explosive atmosphere. Instruments intended for mounting in a pressurized area only need not be teste
27、d for this category.3.12 Fire Hazard:The instrument should be so designed as to safeguard against hazards to the aircraft in the event of malfunction or failure, and the maximum operating temperature or surfaces of any instrument component contacted by combustible fuel or vapor should not exceed 200
28、 C due to self-heating. All materials should be non-combustible and should not liberate gases or fumes which can result in such corrosion as to cause malfunction of equipment or discoloration of dials or indicia, nor should toxic gases or fumes that are detrimental to performance of the aircraft, or
29、 health of personnel, be liberated under the operating conditions specified herein.3.13 Radio Interference:The instrument shall not be a source of objectionable interference under operating conditions at any frequencies used on the aircraft, either by radiation, conduction, or feedback in any electr
30、onic equipment installed in the same aircraft as the instruments, and capable of performing as required when tested per the procedures of RTCA Document DO-138, paragraphs:11. Audio-Frequency Conducted Susceptibility Test12. Audio-Frequency Conducted Susceptibility Test13. Radio-Frequency Susceptibil
31、ity TestAppendix A Standards on Emission of Spurious Radio Frequency Energy (Conducted and Radiated Interference) and Associated Test Procedures3.14 Magnetic Effect:The magnetic effect of the instrument shall not adversely affect the performance of other instruments installed in the same aircraft.SA
32、E ARP1061 Revision A- 6 -3.15 Dielectric:Each instrument shall be capable of meeting the dielectric requirements of 6.1. This requirement is for electrical isolation only and shall not be impressed on circuits where the potential will appear across elements such as windings, resistors, capacitors, e
33、tc.3.16 Power Loss:Means shall be incorporated in the instrument to alert the user of loss of power essential to the operation of the instrument or the effect thereof.4. DETAIL REQUIREMENTS:4.1 Instrument Markings:4.1.1 Dial Finish: Matte white or other approved color material which is applied to gr
34、aduations, numerals, pointers, indices, or other means from which quantitative information is to be read should be conspicuous. The background for all surfaces from which operating information is read (dials, drums, tapes, etc.) should be non-reflecting contrasting color.4.1.2 Visibility: The indica
35、ting means (indices, pointers, counters, etc.) used for altitude preselect and baro set if required, should be clearly identifiable from all points within a space defined by a surface generated by lines making angles of at least 30 degrees with a perpendicular to the display surface and diverging fr
36、om the perimeter of the instrument window aperture. The distance between the indicating means and its cover glass should be a practical minimum.4.1.3 Graduations and Numerals: Incremental markings should be provided at intervals of not greater than 100 ft for setability and for devices with a self-c
37、ontained baro setting, incremental marking of not greater than .01 inch Hg and/or 0.5 millibars are required. The display should include sufficient numerals to permit quick and positive setting of discrete altitude levels, and baro setting if required.4.1.4 Preselected Altitude Setting: Incremental
38、numerals or markings shall be displayed at intervals of not greater than 1000 ft of indicated altitude; with a setability of 100 ft of indicated altitude.4.1.5 Instruments With Self Contained Barometric Setting: Incremental marking or numerals of the barometric setting shall be displayed at interval
39、s not greater than .02 inch of Hg and/or 1 millibar with a setability of .010 inch of Hg and/or .5 millibar.4.1.6 Selected Altitude Display: Where mechanical means are used to display the select altitude setting, relative motion of the index with respect to the scale (either the index or the scale m
40、ay be the moving element) should be clockwise, up or to the right for increasing function except that the relative motion of counters with respect to the window should be downward for increasing value. The display of the preselected altitude setting should be barometrically corrected altitude.SAE AR
41、P1061 Revision A- 7 -4.1.7 Barometric Setting Display (If Present): Rotation and/or setting of the barometric inputs, where required, should not cause the altitude setting to change its indicated value, nor should the setting of the selected altitude cause the barometric settings, when present, to c
42、hange its value.4.1.8 Flag Warning: When warning flags are used they should be a minimum of 1/16 of a square inch in area and should be visible for warning within the requirements of 4.5.4.1.9 Integral Lighting (When Present): White internal lighting should be in accordance with ARP798, Design Crite
43、ria for White Incandescent Lighted Aerospace Instruments.Red integral lighting should be in accordance with ARP582A, Lighting, Integral, for Aircraft Instruments: Criteria for Design of Red Lighted Instruments.4.1.10 Instrument Title: The instrument title, when used, should be the same approximate s
44、ize but not larger than the numerals. The title may be of the same finish as the numerals.4.1.11 Multiple Mode Indications: Where an instrument has more than one mode of operation, means should be provided to indicate the mode of operation being used.4.1.12 Relative Motion Counter (When Used): Relat
45、ive motion counters with respect to the window shall be downward for increasing value.4.2 Knobs:Rotation of knobs should be clockwise for increasing function.4.3 Barometric System:4.3.1 For devices with self-contained pressure altitude information, a barometric setting means should be provided which
46、 will permit the device to be set to any ambient barometric pressure throughout a minimum range of 28.1 to 31.0 inches of Hg and/or 951.5 to 1050.0 millibars. A safety feature should be provided which will prevent an incorrect operating of the altitude alerting system when the baro setting mechanism
47、 exceeds its barometric pressure setting limits.4.3.2 For devices receiving remote pressure altitude information, a barometric setting means should be provided as detailed in 4.3.1 when the remotely supplied pressure altitude information has not been compensated for barometric setting and is referen
48、ced solely to a pressure of 29.921 inches of Hg and/or 1013.2 MB for 0 feet pressure altitude.4.3.3 For devices or systems receiving remotely supplied altitude information which is already corrected for barometric setting, or in the case of radio altitude or radar, no additional baro setting system
49、should be provided.4.3.4 Interaction: Means should be incorporated to prevent the barometric setting system adjustment as defined in 4.3.1 and 4.3.2 from causing an additional requirement for adjustment of the altitude preselect level.SAE ARP1061 Revision A- 8 -4.4 Case Over Pressure:(For devices or systems containing pressure altitude sensing members.) The case should withstand a positive external differential pressure of 26 inches Hg.4.5 Failure Monitoring:When remote altitude and/or barometric signal sources have failure monitoring of these signals, the Altitude A
