Ёрзая попом по сидушке в предвкушении
скорого жрача, летатель самолётом
типа Airbus-320 бывает изумлён. Прямо на запуске двигателя из-под пола салуна начинает гавкать. Сер-добольные пассажиры начинают бегать по салону с требованием не мучать животную, вызывая у более опытных коллег тонны лулза. Давайте же разберёмся, кто сказал гав.
(
Read more... )
Вот схема, когда оно не работает:
To prevent unwanted operation of the PTU when the aircraft is on the ground, different switches and relays are installed in the aircraft. They operate together to supply power to the two PTU solenoid valves under certain conditions. The PTU will not operate if:
- The Yellow electric pump is in operation to close the cargo doors
or:
- The aircraft is on the ground, only one engine is in operation and the parking brake is ON
or:
- The aircraft is on the ground, only one engine is in operation, the parking brake is OFF and the nose wheel steering is deactivated
or:
- The PTU P/BSW on panel 40VU is set to OFF.
The PTU will operate if:
- The aircraft is on the ground
- Only one engine is in operation
- The NWS DISC is OFF
- The parking brake is OFF
- The PTU P/BSW on the panel 40VU is not set to OFF.
To close the energized solenoid valves a 28 VDC supply is necessary to automatically prevent operation of the PTU. If no supply is available, the isolation coupling prevents operation of the PTU during maintenance.
Reply
Reply
Reply
Leave a comment