![]() ![]() It allows you, at a glance, to assess the performance of the aircraft.Therefore, information displayed by the FPV should be used to augment data from the primary instrumentation. There is no crosswind so the symbol is does not show a deviation (drift) from center.īoeing provides a caveat in their literature, stating that the FPV is not a primary flight instrument. The aircraft is in TO/GA command mode ascending at 1100 feet per minute to flaps up speed. The FPV symbol is in the blue part of the Altitude Indicator and reads roughly 2.5 - 3 degrees nose up. LEFT: Flight Path Vector (FPV) in ProSim737 avionics suite. The FPV will provide greater accuracy than the Horizon Heading Scale as it does not ' lag' behind real time as other instruments can do therefore, it is sensible for flight crews to include this tool in their routine scan. When the aircraft changes from climb phase to level flight, the FD bar is commensurate with the configuration of the aircraft (speed, weight, flap, etc.) and the FPV would be on the horizon line, indicating level flight.ĭecending in approach phase on a 3 degree glidepath, the position of the FD and Horizon Heading Scale ( aircraft symbol bar/pitch bar) is dependent upon the speed, flap and gear extension, but the position of the FPV will stay at 3 degrees, unless the flight controls are used to alter the aircraft's pitch. The lateral deviation of the FPV provides a visual indication of drift caused by the crosswind, while the vertical deviation shows the aircraft's attitude or pitch. The data received by the FPV is derived mostly from the Internal Reference System (IRS) of the aircraft therefore, the Flight Path Vector provides an almost instantaneous display of flight path angle and drift information.įor example, if an aircraft took off in a 15 Knot crosswind the Flight Director (FD) bar would register the pitch of the aircraft while the circular FPV would be located above the horizon and to the right or left. If you were stationary on the ground, the circle would be on the horizon line and centered in the display. The circular symbol represents the aircraft's axis in relation to the vertical and lateral movement referenced to the Earth's surface. The FPV is a small circular symbol which, when the FPV button on the EFIS is depressed, superimposes over the Attitude Indicator (AI) part of the Primary Flight Display (PFD). What is the Flight Path Vector and What Does it Do - The Basics EFIS unit produced by CP Flight (Pro model). LEFT: FPV button located on the Electronic Flight Instrument System (EFIS) unit on the Captain and First Officer side. Pressing the button doesn’t do anything grand or remotely obvious, unless you are observant and note that an oddly shaped circle with lines has instantly appeared on the Primary Flight Display (PFD). I often get asked what the FPV button does on the EFIS unit. Please consider sending a few dollars ( Thank You.) All funds donated will be used to offset the cost of server and website hosting. Maintaining this website costs a considerable sum of money each year. ![]() The definition of the acronym OEM is Original Equipment Manufacturer ( aka real aicraft part). I use the words 'modules & panels' and 'CDU & FMC' interchangeably. Do not complain if you do not like what you read. All reviews and content are 'frank and fearless' - I tell it as I see it. Note: I have NO affiliation with ANY manufacturer or reseller. I hope there are not too many spelling and grammatical mistakes.Īrticles are updated from time to time as procedures and information change. Writing for a cross section of readers from differing cultures and languages with varying degrees of technical ability, can at times be challenging. The purpose of FLAPS-2-APPROACH is two-fold: To document the construction of a Boeing 737 flight simulator, and to act as a platform to share aviation-related articles pertaining to the Boeing 737 thereby, providing a source of inspiration and reference to like-minded individuals. ![]()
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