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Pitot-Static System Blockage Effects on Airspeed Indicator
The Dramatic Effects of Pitot-Static System Blockages and Failures by Luiz Roberto Monteiro de Oliveira . Table of Contents I ‐ Introduction…………………………………………………………………………………………………………….1 II ‐ Pitot‐Static Instruments…………………………………………………………………………………………..3 III ‐ Blockage Scenarios – Description……………………………..…………………………………….…..…11 IV ‐ Examples of the Blockage Scenarios…………………..……………………………………………….…15 V ‐ Disclaimer………………………………………………………………………………………………………………50 VI ‐ References…………………………………………………………………………………………….…..……..……51 Please also review and understand the disclaimer found at the end of the article before applying the information contained herein. I - Introduction This article takes a comprehensive look into Pitot-static system blockages and failures. These typically affect the airspeed indicator (ASI), vertical speed indicator (VSI) and altimeter. They can also affect the autopilot auto-throttle and other equipment that relies on airspeed and altitude information. There have been several commercial flights, more recently Air France's flight 447, whose crash could have been due, in part, to Pitot-static system issues and pilot reaction. It is plausible that the pilot at the controls could have become confused with the erroneous instrument readings of the airspeed and have unknowingly flown the aircraft out of control resulting in the crash. The goal of this article is to help remove or reduce, through knowledge, the likelihood of at least this one link in the chain of problems that can lead to accidents. Table 1 below is provided to summarize -
FAA) Privacy Impact Assessment Service Availability Prediction Tool (SAPT)
U.S. Department of Transportation Federal Aviation Administraiton (FAA) Privacy Impact Assessment Service Availability Prediction Tool (SAPT) Responsible Official David E. Gray Program Manager [email protected] Approving Official Claire W. Barrett Chief Privacy & Information Asset Officer Office of the Chief Information Officer [email protected] 0 U.S. Department of Transportation Executive Summary On May 28, 2010, the Federal Aviation Administration (FAA) published the Automatic Dependent Surveillance – Broadcast (ADS-B) final rule mandating that aircraft flying in certain controlled airspace be equipped with ADS-B Out capability not later than January 1, 2020.1 In turn, the FAA developed the Service Availability Prediction Tool (SAPT) to assist pilots, dispatchers, and commercial operators in checking their predicted navigation and surveillance availability before a flight as well as handle requests for Air Traffic Control (ATC) authorization pursuant to 14 CFR § 91.225(g). The SAPT has three main components: Receiver Autonomous Integrity Monitoring (RAIM) SAPT, Automatic Dependent Surveillance-Broadcast (ADS-B) SAPT, and ADS-B Deviation Authorization Pre-Flight Tool (ADAPT). This Privacy Impact Assessment (PIA) was developed pursuant to Section 208 of the E-Government Act of 2002 because the SAPT includes a web-based capability to collect and manage Personally Identifiable Information (PII) captured from aircraft operators to facilitate the automated handling of ATC authorization requests and FAA’s responses. What is a Privacy Impact Assessment? The Privacy Act of 1974 articulates concepts for how the federal government should treat individuals and their information and imposes duties upon federal agencies regarding the collection, use, dissemination, and maintenance of personally identifiable information (PII). -
Aviation Definitions
Aviation Definitions: A Air Carrier - A commercial airline with published schedules operating at least five round trips per week. Airport Layout Plan (ALP) - The official, FAA approved map of an airport's facilities Air Route Traffic Control Center (ARTCC)- A facility providing air traffic control to aircraft on an IFR flight plan within controlled airspace and principally during the enroute phase of flight. Air Taxi - An aircraft certificated for commercial service available for hire on demand. Air Traffic Control (ATC)- The control of aircraft traffic, in the vicinity of airports from control towers, and in the airways between airports from control centers Air Traffic Control Tower (ATCT)- A central operations tower in the terminal air traffic control system with an associated IFR room if radar equipped, using air/ground communications and/or radar, visual signaling and other devices to provide safe, expeditious movement of air traffic. Altitude MSL - Aircraft altitude measured in feet above mean sea level. Approach Lighting System (ALS) - Radiating light beams guiding pilots to the extended centerline of the runway on final approach and landing. Approach Lights - High intensity lights located along the approach path at the end of an instrument runway. Approach lights aid the pilot in the transition from instrument flight conditions to visual conditions at the end of an instrument approach. Arrival - The act of landing at an airport. Arrival Procedure - A series of directions from air traffic control, using fixes and procedures, to guide an aircraft from the enroute environment to an airport for landing. Arrival Stream - A flow of aircraft following similar arrival procedures. -
Acnmanual.Pdf
Advanced Coastal Navigation Coast Guard Auxiliary Association Inc. Washington, D. C. First Edition..........................................................................1987 Second Edition .....................................................................1990 Third Edition ........................................................................1999 Fourth Edition.......................................................................2002 ii iii iv v vi Advanced Coastal Navigation TABLE OF CONTENTS Introduction...................................................................................................ix Chapter 1 INTRODUCTION TO COASTAL NAVIGATION . .1-1 Chapter 2 THE MARINE MAGNETIC COMPASS . .2-1 Chapter 3 THE NAUTICAL CHART . .3-1 Chapter 4 THE NAVIGATOR’S TOOLS & INSTRUMENTS . .4-1 Chapter 5 DEAD RECKONING . .5-1 Chapter 6 PILOTING . .6-1 Chapter 7 CURRENT SAILING . .7-1 Chapter 8 TIDES AND TIDAL CURRENTS . .8-1 Chapter 9 RADIONAVIGATION . .9-1 Chapter 10 NAVIGATION REFERENCE PUBLICATIONS . .10-1 Chapter 11 FUEL AND VOYAGE PLANNING . .11-1 Chapter 12 REFLECTIONS . .12-1 Appendix A GLOSSARY . .A-1 INDEX . .Index-1 vii Advanced Coastal Navigation viii intRodUction WELCOME ABOARD! Welcome to the exciting world of completed the course. But it does marine navigation! This is the fourth require a professional atti tude, care- edition of the text Advanced Coastal ful attention to classroom presenta- Navigation (ACN), designed to be tions, and diligence in working out used in con cert with the 1210-Tr sample problems. chart in the Public Education (PE) The ACN course has been course of the same name taught by designed to utilize the 1210-Tr nau - the United States Coast Guard tical chart. It is suggested that this Auxiliary (USCGAUX). Portions of chart be readily at hand so that you this text are also used for the Basic can follow along as you read the Coastal Navigation (BCN) PE text. We recognize that students course. -
NORWAY LOCAL SINGLE SKY IMPLEMENTATION Level2020 1 - Implementation Overview
LSSIP 2020 - NORWAY LOCAL SINGLE SKY IMPLEMENTATION Level2020 1 - Implementation Overview Document Title LSSIP Year 2020 for Norway Info Centre Reference 20/12/22/79 Date of Edition 07/04/2021 LSSIP Focal Point Peder BJORNESET - [email protected] Luftfartstilsynet (CAA-Norway) LSSIP Contact Person Luca DELL’ORTO – [email protected] EUROCONTROL/NMD/INF/PAS LSSIP Support Team [email protected] Status Released Intended for EUROCONTROL Stakeholders Available in https://www.eurocontrol.int/service/local-single-sky-implementation- monitoring Reference Documents LSSIP Documents https://www.eurocontrol.int/service/local-single-sky-implementation- monitoring Master Plan Level 3 – Plan https://www.eurocontrol.int/publication/european-atm-master-plan- Edition 2020 implementation-plan-level-3 Master Plan Level 3 – Report https://www.eurocontrol.int/publication/european-atm-master-plan- Year 2020 implementation-report-level-3 European ATM Portal https://www.atmmasterplan.eu/ STATFOR Forecasts https://www.eurocontrol.int/statfor National AIP https://avinor.no/en/ais/aipnorway/ FAB Performance Plan https://www.nefab.eu/docs# LSSIP Year 2020 Norway Released Issue APPROVAL SHEET The following authorities have approved all parts of the LSSIP Year 2020 document and the signatures confirm the correctness of the reported information and reflect the commitment to implement the actions laid down in the European ATM Master Plan Level 3 (Implementation View) – Edition 2020. Stakeholder / Name Position Signature and date Organisation -
Flight Inspection History Written by Scott Thompson - Sacramento Flight Inspection Office (May 2008)
Flight Inspection History Written by Scott Thompson - Sacramento Flight Inspection Office (May 2008) Through the brief but brilliant span of aviation history, the United States has been at the leading edge of advancing technology, from airframe and engines to navigation aids and avionics. One key component of American aviation progress has always been the airway and navigation system that today makes all-weather transcontinental flight unremarkable and routine. From the initial, tentative efforts aimed at supporting the infant air mail service of the early 1920s and the establishment of the airline industry in the 1930s and 1940s, air navigation later guided aviation into the jet age and now looks to satellite technology for direction. Today, the U.S. Federal Aviation Administration (FAA) provides, as one of many services, the management and maintenance of the American airway system. A little-seen but still important element of that maintenance process is airborne flight inspection. Flight inspection has long been a vital part of providing a safe air transportation system. The concept is almost as old as the airways themselves. The first flight inspectors flew war surplus open-cockpit biplanes, bouncing around with airmail pilots and watching over a steadily growing airway system predicated on airway light beacons to provide navigational guidance. The advent of radio navigation brought an increased importance to the flight inspector, as his was the only platform that could evaluate the radio transmitters from where they were used: in the air. With the development of the Instrument Landing System (ILS) and the Very High Frequency Omni-directional Range (VOR), flight inspection became an essential element to verify the accuracy of the system. -
TCAS II) by Personnel Involved in the Implementation and Operation of TCAS II
Preface This booklet provides the background for a better understanding of the Traffic Alert and Collision Avoidance System (TCAS II) by personnel involved in the implementation and operation of TCAS II. This booklet is an update of the TCAS II Version 7.0 manual published in 2000 by the Federal Aviation Administration (FAA). It describes changes to the CAS logic introduced by Version 7.1 and updates the information on requirements for use of TCAS II and operational experience. Version 7.1 logic changes will improve TCAS Resolution Advisory (RA) sense reversal logic in vertical chase situations. In addition all “Adjust Vertical Speed, Adjust” RAs are converted to “Level-Off, Level-Off” RAs to make it more clear that a reduction in vertical rate is required. The Minimum Operational Performance Standards (MOPS) for TCAS II Version 7.1 were approved in June 2008 and Version 7.1 units are expected to be operating by 2010-2011. Version 6.04a and 7.0 units are also expected to continue operating for the foreseeable future where authorized. 2 Preface................................................................................................................................. 2 The TCAS Solution............................................................................................................. 5 Early Collision Avoidance Systems................................................................................ 5 TCAS II Development .................................................................................................... 6 Initial -
Aviation Glossary
AVIATION GLOSSARY 100-hour inspection – A complete inspection of an aircraft operated for hire required after every 100 hours of operation. It is identical to an annual inspection but may be performed by any certified Airframe and Powerplant mechanic. Absolute altitude – The vertical distance of an aircraft above the terrain. AD - See Airworthiness Directive. ADC – See Air Data Computer. ADF - See Automatic Direction Finder. Adverse yaw - A flight condition in which the nose of an aircraft tends to turn away from the intended direction of turn. Aeronautical Information Manual (AIM) – A primary FAA publication whose purpose is to instruct airmen about operating in the National Airspace System of the U.S. A/FD – See Airport/Facility Directory. AHRS – See Attitude Heading Reference System. Ailerons – A primary flight control surface mounted on the trailing edge of an airplane wing, near the tip. AIM – See Aeronautical Information Manual. Air data computer (ADC) – The system that receives and processes pitot pressure, static pressure, and temperature to present precise information in the cockpit such as altitude, indicated airspeed, true airspeed, vertical speed, wind direction and velocity, and air temperature. Airfoil – Any surface designed to obtain a useful reaction, or lift, from air passing over it. Airmen’s Meteorological Information (AIRMET) - Issued to advise pilots of significant weather, but describes conditions with lower intensities than SIGMETs. AIRMET – See Airmen’s Meteorological Information. Airport/Facility Directory (A/FD) – An FAA publication containing information on all airports, seaplane bases and heliports open to the public as well as communications data, navigational facilities and some procedures and special notices. -
Use of the MS Flight Simulator in the Teaching of the Introduction to Avionics Course
Session 1928 Use of the MS Flight Simulator in the teaching of the Introduction to avionics course Iulian Cotoi, Ruxandra Mihaela Botez Ecole de technologie supérieure Département de génie de la production automatisée 1100 Notre Dame Ouest Montréal, Qué., Canada, H3C 1K3 Introduction The course Introduction to avionics GPA-745 is an optional course in the Aerospace program given in the Department of Automated Production Engineering at École de technologie supérieure in Montreal, Canada. The main objectif of this course is the study of electronic avionics instrumentation installed in aircraft. In this course, the following chapters are presented : History of avionics, Methods of navigation and orientation, Pilot cockpit and board instrumentation, Communication systems, Radio-navigation systems, Landing systems, Engine signalization instruments, Central alarm systems, Maintenance systems and Warning systems. The presentation of the course in the class to the students is shown on PowerPoint slides and videos on modern aircraft such as Airbus and Boeing. Also, regarding the pilot induced oscillations a video film is provided from Bombardier Aerospace. However, the presentation of the course in the class may be improved and become more efficient grace to the use of MS Flight Simulator. The main idea of this paper is to show how the participation of the students in the class will be increased by use of the MS Flight Simulator. The use of the systems and the electronic board instrumentation will be shown with the help of the new flight simulations modules realized within the MS Flight Simulator. For each instrument, one module will be created and presented in the class, which will result in a more interesting course presentation, stimulating and dynamical from pedagogical point of view, than the theory of the course by use of PowerPoint. -
Module-7 Lecture-29 Flight Experiment
Module-7 Lecture-29 Flight Experiment: Instruments used in flight experiment, pre and post flight measurement of aircraft c.g. Module Agenda • Instruments used in flight experiments. • Pre and post flight measurement of center of gravity. • Experimental procedure for the following experiments. (a) Cruise Performance: Estimation of profile Drag coefficient (CDo ) and Os- walds efficiency (e) of an aircraft from experimental data obtained during steady and level flight. (b) Climb Performance: Estimation of Rate of Climb RC and Absolute and Service Ceiling from experimental data obtained during steady climb flight (c) Estimation of stick free and fixed neutral and maneuvering point using flight data. (d) Static lateral-directional stability tests. (e) Phugoid demonstration (f) Dutch roll demonstration 1 Instruments used for experiments1 1. Airspeed Indicator: The airspeed indicator shows the aircraft's speed (usually in knots ) relative to the surrounding air. It works by measuring the ram-air pressure in the aircraft's Pitot tube. The indicated airspeed must be corrected for air density (which varies with altitude, temperature and humidity) in order to obtain the true airspeed, and for wind conditions in order to obtain the speed over the ground. 2. Attitude Indicator: The attitude indicator (also known as an artificial horizon) shows the aircraft's relation to the horizon. From this the pilot can tell whether the wings are level and if the aircraft nose is pointing above or below the horizon. This is a primary instrument for instrument flight and is also useful in conditions of poor visibility. Pilots are trained to use other instruments in combination should this instrument or its power fail. -
Instrument Rating ‒ Airplane Airman Certification Standards
FAA-S-ACS-8B (with Change 1) U.S. Department of Transportation Federal Aviation Administration Instrument Rating ‒ Airplane Airman Certification Standards June 2018 Flight Standards Service Washington, DC 20591 Acknowledgments The U.S. Department of Transportation, Federal Aviation Administration (FAA), Office of Safety Standards, Regulatory Support Division, Airman Testing Branch, P.O. Box 25082, Oklahoma City, OK 73125 developed this Airman Certification Standards (ACS) document with the assistance of the aviation community. The FAA gratefully acknowledges the valuable support from the many individuals and organizations who contributed their time and expertise to assist in this endeavor. Availability This ACS is available for download from www.faa.gov. Please send comments regarding this document using the following link to the Airman Testing Branch Mailbox. Material in FAA-S-ACS-8B will be effective June 11, 2018. All previous editions of the Instrument Rating – Airplane Airman Certification Standards will be obsolete as of this date for airplane applicants. i Foreword The Federal Aviation Administration (FAA) has published the Instrument Rating – Airplane Airman Certification Standards (ACS) document to communicate the aeronautical knowledge, risk management, and flight proficiency standards for the instrument rating in the airplane category, single-engine land and sea; and multiengine land and sea classes. This ACS incorporates and supersedes FAA-S-ACS-8A Instrument Rating – Airplane Airman Certification Standards. The FAA views the ACS as the foundation of its transition to a more integrated and systematic approach to airman certification. The ACS is part of the Safety Management System (SMS) framework that the FAA uses to mitigate risks associated with airman certification training and testing. -
FSF ALAR Briefing Note 3.2 -- Altitude Deviations
Flight Safety Foundation Approach-and-landing Accident Reduction Tool Kit FSF ALAR Briefing Note 3.2 — Altitude Deviations Altitude deviations may result in substantial loss of aircraft • The pilot-system interface: vertical separation or horizontal separation, which could cause – Altimeter setting, use of autopilot, monitoring of a midair collision. instruments and displays; or, Maneuvers to avoid other aircraft often result in injuries to • The pilot-controller interface: passengers, flight crewmembers and, particularly, to cabin crewmembers. – Communication loop (i.e., the confirmation/ correction process). Statistical Data Altitude deviations occur usually as the result of one or more of the following conditions: An analysis by the U.S. Federal Aviation Administration (FAA) and by USAir (now US Airways) of altitude-deviation events1 • The controller assigns an incorrect altitude or reassigns showed that: a flight level after the pilot was cleared to an altitude; • Approximately 70 percent of altitude deviations were the • Pilot-controller communication breakdown — mainly result of a breakdown in pilot-controller communication; readback/hearback errors such as the following: and, – Controller transmits an incorrect altitude, the pilot • Nearly 40 percent of altitude deviations resulted when does not read back the altitude and the controller does air traffic control (ATC) assigned 10,000 feet and the not challenge the absence of a readback; flight crew set 11,000 feet in the selected-altitude – Pilot reads back an incorrect altitude, but the window, or when ATC assigned 11,000 feet and the flight controller does not hear the erroneous readback and crew set 10,000 feet in the selected-altitude window. does not correct the pilot’s readback; or, Defining Altitude Deviations – Pilot accepts an altitude clearance intended for another aircraft (confusion of call signs); An altitude deviation is a deviation from the assigned altitude • Pilot receives, understands and reads back the correct (or flight level) equal to or greater than 300 feet.