Latest / Pilot Handbook of Aeronautical Knowledge / Episode 74 - Land and Hold Short Operations - Pilot's Handbook of Aeronautical Knowledge
Transcript
- 0:00Appendix one, Part four. Land and Hold Short Operations Land and Hold Short
- 0:06Operations LASSO when simultaneous operations, takeoffs and landings are being conducted on intersecting runways.
- 0:15Land and hold short operations LASSO may also be in effect. LASSO is
- 0:21an ATC procedure that may require your participation and compliance. As Pilot in Command
- 0:27PIC, you have the final authority to accept or decline any LASSO clearance.
- 0:33If issued a land and hold short clearance, you must be aware of the
- 0:37reduced runway distances and whether or not you can comply before accepting a land and
- 0:42hold short clearance. You do not have to accept a LASSO clearance. Pilots
- 0:47should only receive a LASSO clearance when there is a minimum ceiling of one thousand
- 0:51feet and three statute miles of visibility. Runway holding position signs and markings are
- 0:57installed only on those runways used for LASSO. The signs and markings are placed
- 1:00at the LASSO point to aid you in determining where to stop and hold the
- 1:04aircraft, and are located prior to the runway runway intersection see Figure one h
- 1:10twenty eight. The holding position sign has a white inscription with black border around
- 1:15the numbers on a red background and is installed adjacent to the holding position markings.
- 1:19If you accept a land and hold short clearance, you must comply so
- 1:23that no portion of the aircraft extends beyond these hold markings. If receiving cleared
- 1:29to land instructions from ATC, you are authorized to use the entire landing length
- 1:34of the runway and should disregard any LASSO holding position markings located on the runway.
- 1:38If you receive and accept LASSO instructions, you must stop short of the
- 1:42intersecting runway prior to the LASSO signs and markings. Below is a list of
- 1:47items which, if thoroughly understood and complied with, will ensure that LASSO operations
- 1:52are conducted properly. No landing distance available. Be advised by ATC as to
- 1:57why LASSO are being conduct did advise ATC if you cannot comply with LASO,
- 2:04know what signs and markings are at the LASSO point. LASSO are not authorized
- 2:08for student pilots who are performing a solo flight. Generally, LASSO are not
- 2:14authorized with air carrier operations. Generally, LASO are not authorized at night.
- 2:20LASSO are not authorized on wet runways. If you accept the following clearance from
- 2:25ATC cleared to land Runway thirty six hold short Runway twenty three DASH five,
- 2:31you must either exit Runway thirty six or stop at the holding position prior to
- 2:37Runway twenty three Dash five. Location signs and markings. Taxiway location signs and
- 2:45markings and runway location signs aid you in identifying the taxiway or runway on which
- 2:50you are currently located. They have a black background with yellow characters. These
- 2:55signs may stand alone or be co located with direction or runway holding position signs
- 3:00see Figures one DASH twenty nine A and B. Runway location signs are intended
- 3:06to complement the information available to you through your aircraft magnetic compass. They are
- 3:10installed in areas where the proximity of two or more runways could cause you to
- 3:15be confused. Figure one Dash twenty nine A and B shows that Taxiway Alpha
- 3:20and Runway thirty six are standalone location signs and are not associated with any other
- 3:24sign. Complex airport geometry a single taxiway leading up to multiple runway thresholds,
- 3:30and or the close proximity of multiple runway thresholds can lead to confusion and a
- 3:36higher risk of you departing on the wrong runway. At airports where these risk
- 3:39factors are present and the proximity of two runway thresholds could cause confusion, runway
- 3:46location signs may be present. Cross check your aircraft compass heading with the assign
- 3:50takeoff runway heading prior to break release. Figure one Dash twenty nine C shows
- 3:54the thresholds of runway thirty and Runway thirty six, which are co located.
- 4:00Runway location signs are present on these runways along with the runway designation numbers.
- 4:04Note. Runway designation surface painted markings are large white block numbers and are located
- 4:10at the threshold of the runway. Surface painted taxiway location markings are normally located
- 4:15on airports where there has been a history of navigation confusion see Figure one Dash
- 4:20thirty. These signs and markings are designed to help you navigate difficult or potentially
- 4:26confusing intersections. If ever in doubt about your taxi clearance, ask ATC for
- 4:30help. Taxiway direction signs and marking. Taxiway direction signs have a yellow background
- 4:38and black characters which identifies the designation or intersecting taxiways. Arrows indicate the direction
- 4:44of turn that would place the aircraft on the designated taxiway. See Figure one
- 4:48Dash thirty one. Direction signs are normally located on the left side of the
- 4:54taxiway and prior to the intersection. These signs and markings with a yellow background
- 5:00black characters indicate the direction toward a different taxiway leading off a runway or out
- 5:04of an intersection. Figure one Dash thirty one shows Taxiway Delta and how Taxiway
- 5:11Bravo intersects ahead at ninety degrees. Both left and right taxiway direction signs can
- 5:15also be displayed as surface painted markings. Figure one Dash thirty two shows Taxiway
- 5:20Bravo as preceding straight ahead while Taxiway Alpha turns to the right at approximately forty
- 5:26five degrees. Figure one Dash thirty three A and B shows an example of
- 5:30a direction sign at a complex taxiway intersection. Figure one Dash thirty three A
- 5:35and B shows Taxiway Bravo intersects with Taxiway Sierra at ninety degrees, but at
- 5:41forty five degrees with Taxiway Foxtrot. This type of array can be displayed with
- 5:46or without the taxiway location sign, which in this case would be Taxiway Bravo
- 5:51destination signs. Destination signs have black characters on a yellow background indicating a destination
- 5:59at the airport. These signs always have an arrow showing the direction of the
- 6:02taxi route to that destination see Figure one, Dash thirty four. When the
- 6:08arrow on the destination sign indicates a turn, the sign is located prior to
- 6:12the intersection. Destinations commonly shown on these types of signs include runways, aprons,
- 6:18terminals, military areas, civil aviation areas, cargo areas, international areas,
- 6:26and fixed base operators. When the inscription for two or more destinations having
- 6:30a common taxi route are placed on a sign, the destinations are separated by
- 6:35a dot and one arrow would be used, as shown in Figure one Dash
- 6:39thirty five. When the inscription on a sign contains two or more destinations having
- 6:44different taxi routes, each destination is accompanied by an arrow and separated from the
- 6:48other destinations on the sign with a vertical black message divider, as shown in
- 6:51Figure one Dash thirty five. The example shown in Figure one Dash thirty five
- 6:58shows two signs. The sign in the foreground explains that runway twenty threshold is
- 7:02to the left and runways thirty two, two and fourteen are to the right.
- 7:08The sign in the background indicates that you are located on Taxiway Bravo and
- 7:12Taxiway November will take you to those runways. Holding position signs and markings for
- 7:18an instrument landing system ILS. The Instrument Landing system ILS broadcast signals to arriving
- 7:26instrument aircraft to guide them to the runway. Each of these ilses has a
- 7:30critical area that must be kept clear of all obstacles in order to ensure quality
- 7:34of the broadcast signal, and many airports taxiways extend into the ILS critical area.
- 7:41Most of the time, this is of no concern. However, during
- 7:44times of poor weather, an aircraft on approach may depend on a good signal
- 7:47quality. When necessary, ATC will protect the ILS critical area for a rival
- 7:53instrument traffic by instructing taxiing aircraft to hold short of this critical area. The
- 8:00LS critical Area boundary sign has white characters outlined in black on a red background
- 8:05and is installed adjacent to the ILS holding position markings. See Figure one,
- 8:09Dash thirty six. The holding position markings for the ILS Critical Area appear on
- 8:15the pavement as a horizontal ladder and consist of two solid yellow lines based two
- 8:20feet apart, connected by pairs of solid lines space ten feet apart, extending
- 8:24across the width of the taxiway. When instructed to hold short of the ILS
- 8:30critical area, you must ensure that no portion of the aircraft extends beyond these
- 8:33markings. If ATC does not instruct you to hold at this point, then
- 8:37you may bypass the ILS critical Area hold position markings and continue with your taxi.
- 8:43Figure one Dash thirty six shows that the ILS hold sign is located on
- 8:48Taxiway golf and the ILS ladder hold position marking is adjacent to the hold sign
- 8:54Runway approach area, holding position signs and markings. At some airport, it
- 9:00is necessary to hold an aircraft on a taxiway located in the approach or departure
- 9:03area for a runway so the aircraft does not interfere with operations on that runway.
- 9:09In these situations, a sign with a designation of the approach end of
- 9:13the runway followed by a dash and letters APCH will be located at the holding
- 9:18position on the taxiway. Holding position markings will be located on the taxiway pavement
- 9:24see Figure one, Dash thirty seven. In this example, the sign may
- 9:28protect the approach to runway thirty two and or the departure for runway fourteen.
- 9:33If you are expected to hold short of a runway approach apcch area. ATC
- 9:39will issue instructions holding position markings for taxiway taxiway intersections. Holding position markings for
- 9:48taxiway taxiway intersections consist of a single dash yellow line extending across the width of
- 9:52the taxiway see figure one, Dash thirty eight. They are painted on taxiways
- 9:58where ATC normally holds aircraft short of a taxiway intersection. When instructed by ATC
- 10:05hold short of taxiway X, you should stop so that no part of your
- 10:09aircraft extends beyond the holding position marking. When the marking is not present,
- 10:13you should stop your aircraft at a point that provides adequate clearance from an aircraft
- 10:18on the intersecting taxiway. Marking and lighting of permanently closed runways and taxiways.
- 10:24For runways and taxiways that are permanently closed, the lighting circuits are disconnected the
- 10:30runway threshold runway designation and touchdown markings are obliterated and yellow xes are placed at
- 10:35each end of the runway and at one thousand foot intervals temporarily closed runways and
- 10:43taxiways. For temporarily closed runways and taxiways, a visual indication is often provided
- 10:50with yellow xes or raised lighted yellow xes placed at each end of the runway.
- 10:54Depending on the reason for the closure, duration of closure, air field
- 10:58configuration, and the existence in the hours of operation of an ATC tower,
- 11:03a visual indication may not be present, as discussed previously in the chapter You
- 11:09must Always check no tams and adis for runway and taxiway closure information. Figure
- 11:13one Dash thirty nine A shows an example of a yellow X laid flat with
- 11:18an adequate number of heavy rubber weights to keep the wind from getting under and
- 11:22displacing the vinyl material. The black rubber weights are positioned along the edge,
- 11:26giving the appearance of a black outline. A very effective and preferable visual aid
- 11:31to depict temporary closure is the lighted X placed on or near the runway designation
- 11:35numbers see Figure one Dash thirty nine B and C. This device is much
- 11:41more discernible to approaching aircraft than the other materials described above runway edge and center
- 11:46line lights. The runway edge lights are white, except on instrument runways,
- 11:52where yellow replaces white on the last two thousand feet or half the runway length,
- 11:56whichever is less, to form a caution zone for landings. The lights
- 12:01marking the ends of the runway emit red light towards the runway to indicate the
- 12:05end of a runway to a departing aircraft, and emit green outward from the
- 12:07runway end to indicate the threshold to landing aircraft. Center line lights are located
- 12:13along the runway centerline and are spaced at fifty foot intervals. When viewed from
- 12:18the landing threshold, the runway center line lights are white until the last three
- 12:22thousand feet of the runway. The white lights begin to alternate with red for
- 12:26the next two thousand feet. For the last one thousand feet of the runway,
- 12:30all center line lights are red. See Figure one DASH forty taxiway edge
- 12:35lights or reflectors. Taxiway edge lights or reflectors are blue in color and used
- 12:39to outline the edges of taxiways. See Figure one DASH forty one. Runway
- 12:46designation marking runway numbers and letters are determined from the approach direction. The runway
- 12:52number is the whole number nearest one tenth the magnetic azimuth of the center line
- 12:56of the runway, measured clockwise from the magnetic north. In the case where
- 13:01there are parallel runways, the letters differentiate between left, L, right R,
- 13:05or center C C Figure one, DASH forty two. For example,
- 13:11if there are two parallel runways, they would show the designation number and then
- 13:15either L or R beneath it. For three parallel runways, the designation number
- 13:18would be presented with L, C or R beneath it. End of Part
- 13:22four of Appendix one.