AH-64D HYD & IPAS
|The primary HYD system provides ___psi hydraulic fluid to primary side of all __ servoactuators. It has EHV that allows ___ and ___ to affect the flight controls.|| 3000|
|The primary HYD system major components consist of the Primary HYD pump, which draws __ pressure fluid from the reservoir and provides __ fluid to the manifold. The main __ accessory gearbox drives the HYD pump.|| low|
|The primary HYD manifold ___, ___, ___, and ___ HYD fluid. It has __ LRBs (What are they?)|| Stores filters supplies regulates|
Pressure and return dirty filter
|The primary HYD manifold reservoir provides fluid pressurized to __+-__psi by IPAS to prevent cavitation and foaming.||31 3|
|The primary HYD system operation uses __ air. If fluid reaches a minimum operating level, __-level switch __ and signals __. It distributes high pressure HYD fluid to the __.|| IPAS|
|The Utility HYD system provides ___psi to the following: AAAAEETRU|| Ammo carrier drive motor|
AWS azimuth drive motor
APU starter motor
AWS elevation actuator
External stores elevation actuator
Emergency HYD power to servoactuator
Tail wheel unlock actuator
Utility side of the 4 servoactuators
|The Primary IPAS air source is from __ __ when they're operating. The second source is __ __ from a single operating engine. ___ supplies bleed air until engines are running.|| both engines|
| The components that draw from IPAS are:|
| Fuel Transfer/Boost|
Ice Detect probe
High Pressure HYD***
Air Turbine Starter
Louvre -> fire doors
ECS -> heat only
|The power train changes angle of drive and converts the output RPM of the engines into __ __ to drive the main rotor, tail rotor, and gear driven accessories.||Useable power|
|When the engines aren't operating the drive system, it uses __ to drive A/C accessories.||APU|
|The nose gearboxes drive angle change of __ degrees from engine, reducing output to __RPM @ __%Np. It has a self contained oil system holding __ pints. The oil filter impending bypass indicator will pop up when differential pressure is __+-__ PSID. The chip detector/temperature sensor is a __ __ __ type detector. It has felt wicking installed for emergency lubrication for approximately __ minutes.|| 90|
fuzz burn off
|The main transmission assembly accepts __ loads only. The __ __ takes up all flight loads.|
It has __ complete oil systems. The rotor break assembly is installed on ___ and aids in __/__ the main rotor. It has __ __ installed for emergency lubrication for approx __ mins. The oil coolers are mounted on the left and right side of the __ deck. The AGB is driven by the __ drive shaft or the __ drive shafts.
| torque |
|The AGB provides shaft power to the main __ and __ pumps while the rotor is stationary or rotating. The impending bypass button will pop when differential pressure is >__=-__PSID. If only the __ is running, you must monitor __ temp on sys page because oil does not go through a cooling cycle until at lease one __ is cranked and rotor is turning.|| Generators HYD|
|The intermediate gearbox is mounted on the lower end of the __, has __ degree drive angle change. It uses special __ instead of oil and therefore does not require a __ detector. A __ monitor is used to check internal condition. If it is too great, the __ __ message occurs. There are __ thermisters. The cooling air draws air from the vicinity of ___.|| Stabilator|
|The TRGB has __degree drive angle change to reduce __ from IGB. It uses the same __ that the IGB uses. Output drive shafts tramsnit __ to the T/R, all other forces go to the __ mast.|| 90 RPM|
| There are __ Driveshafts.|
1&2: Couple __ to the __.
3,4,5: Couple the main __ to the __.
6: Couples the __ to the __.
7: Couples the __ to the main __ AGB.
|The drive shaft supporting components are HDAC.|| Hanger bearings - provide shaft alignment and support|
Damper assemblies - control vibration during startup and shutdown
Anti-flail assemblies - prevent damaged shaft sections from being thrown
Couplings - provide mechanical attachment between drive components.
|The ECS uses __ independent but identical Vapor Cycle Cooling Systems to provide __ air to each __ and both crewstations. The heated air is provided by __ or __ during heating.|| 2|