In-Flight Weather Advisory.doc - Powered by Google Docs. Tim's Air Navigation Simulator. Turn coordinator. Illustration of the face of a turn-and-slip indicator Name[edit] The turn and slip indicator can be referred to as the turn and bank indicator, although the instrument does not respond directly to bank angle. Neither does the turn coordinator, but it does respond to roll rate, which enables it to respond more quickly to the start of a turn.[2] Operation[edit] Graphic of a turn and slip indicator and a turn coordinator Turn indicator[edit] The turn indicator is a gyroscopic instrument that works on the principle of precession. The display contains hash marks for the pilot's reference during a turn. Inclinometer[edit] A simple alternative to the balance indicator is a yaw string, which allows the pilot to simply view the string's movements as rudimentary indication of aircraft balance.
Turn coordinator[edit] The turn coordinator (TC) is a further development of the turn and slip indicator with the major difference being the display and the axis upon which the gimbal is mounted. Skidding. CFII PTS - Technical Subject Areas: Aircraft Flight Instruments and Navigation Equipment. Variometer. The term variometer also refers to a type of variable transformer or an instrument for measuring the magnitude and direction of a Magnetic field.
In powered flight the pilot makes frequent use of the VSI to ascertain that level flight is being maintained, especially during turning maneuvers. In gliding, the instrument is used almost continuously during normal flight, often with an audible output, to inform the pilot of rising or sinking air. It is usual for gliders to be equipped with more than one type of variometer. The simpler type does not need an external source of power and can therefore be relied upon to function regardless of whether a battery or power source has been fitted. The electronic type with audio needs a power source to be operative during the flight. The instrument is of little interest during launching and landing, with the exception of aerotow, where the pilot will usually want to avoid releasing in sink. Description[edit] Purpose[edit] Total energy compensation[edit]
Approach lighting system. An approach lighting system, or ALS, is a lighting system installed on the approach end of an airport runway and consisting of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end. ALS usually serves a runway that has an instrument approach procedure (IAP) associated with it and allows the pilot to visually identify the runway environment and align the aircraft with the runway upon arriving at a prescribed point on an approach. Modern approach lighting systems are highly complex in their design and significantly enhance the safety of aircraft operations, particularly in conditions of reduced visibility.
Operation[edit] The required minimum visibility for instrument approaches is influenced by the presence and type of approach lighting system. In the U.S., a CAT I ILS approach without approach lights will have a minimum required visibility of 3/4 mile, or 4000 foot runway visual range. History[edit] Decision bar[edit] Configurations[edit] Sensory illusions in aviation. Because human senses are adapted for use on the ground, navigating by sensory input alone during flight can be dangerous: sensory input does not always accurately reflect the movement of the aircraft, causing sensory illusions.
These illusions can be extremely dangerous for pilots. Vestibular system[edit] The vestibular system consists of the otolith organs and the semicircular canals. Illusions in aviation are caused when the brain cannot reconcile the vestibular and visual inputs. The semicircular canals, of which there are three recognizing accelerations in pitch, yaw, and roll, are stimulated by angular accelerations; the otolith organs, the saccule and utricle, are stimulated by linear accelerations. Somatogyral illusions occur as a result of angular accelerations stimulating the semicircular canals. Vestibular/somatogyral illusions[edit] The leans[edit] Graveyard spin[edit] The graveyard spin is an illusion that can occur to a pilot who enters a spin.
Graveyard spiral[edit] IMSAFE. IMSAFE is a mnemonic used by some aircraft pilots to assess their fitness to fly.[1] Definition[edit] The mnemonic is interpreted as: Illness - Is the pilot suffering from any illness or symptom of an illness which might affect them in flight,Medication - Is the pilot currently taking any drugs (prescription or over-the-counter),Stress - Psychological or emotional factors which might affect the pilot's performance,Alcohol - Although legal limits vary by jurisdiction (20 mg/mL blood in the UK,[2] one quarter that for driving), the pilot might want to consider their alcohol consumption within the last 8 to 24 hours,Fatigue - Has the pilot had sufficient sleep and rest in the recent past, andEating - Is the pilot sufficiently nourished?
Some sources [3] give the Emotion. References[edit] Ear. Structure Anatomy of the human ear. The length of the auditory canal is exaggerated for viewing purposes. The shape of the outer ear of mammals varies widely across species. However the inner workings of mammalian ears (including humans') are very similar. Outer ear The auricle consists of the curving outer rim (the helix), the inner curved rim (the antihelix), and opens into the ear canal, properly called the external acoustic meatus. The tragus protrudes and partially obscures the ear canal. Two sets of muscles are associated with the outer ear; the intrinsic and extrinsic muscles. The auricle consists of a single piece of fibrocartilage with a complicated relief on the anterior, concave side and a fairly smooth configuration on the posterior, convex side. The outer ear is one of the best locations to measure body signals, which is why many in the wearable technology space are developing earbuds with biometric technology to measure critical vital signs during activity.
Middle ear Function. Vestibular system. Figure 1: The labyrinth of the inner ear, from the left ear. It contains i) the cochlea (yellow), which is the peripheral organ of our auditory system; ii) the semicircular canals (brown), which transduce rotational movements; and iii) the otolithic organs (in the blue/purple pouches), which transduce linear accelerations. The light blue pouch is the endolymphatic sac, and contains only fluid. Semicircular canal system[edit] The semicircular canal system detects rotational movements. The semicircular canals are its main tools to achieve this detection. Structure[edit] Movement of fluid within the horizontal semicircular canal corresponds to rotation of the head around a vertical axis (i.e. the neck), as when doing a pirouette.The anterior and posterior semicircular canals detect rotations of the head in the sagittal plane (as when nodding), and in the frontal plane, as when cartwheeling.
Push-pull systems[edit] Vestibulo-ocular reflex (VOR)[edit] The vestibulo-ocular reflex. Mechanics[edit] Instrument approach. For the aircraft operating under instrument flight rules (IFR), an instrument approach or instrument approach procedure (IAP) is a series of predetermined maneuvers for the orderly transfer of an aircraft under instrument meteorological conditions (IMC) from the beginning of the initial approach to a landing, or to a point from which a landing may be made visually.[1] The concept was also commonly known as a blind landing or blind approach when first introduced, although these terms are no longer common.
There are two main classifications for IAPs: precision and non-precision. Precision approaches utilize both lateral (localizer) and vertical (glideslope) information. Non-precision approaches provide lateral course information only.[2] Publications depicting instrument approach procedures are called Terminal Procedures, but are commonly referred to by pilots as approach plates. Basic principles[edit] Non-precision approaches and systems[edit] Precision approaches and systems[edit] LinkClick.aspx (application/pdf Object)