Lookups Flashcards
How to judge mountain winds
Upflowing: Torque lower than baseline, smooth buoyant air, nose crabs away
Downflowing: Torque higher than baseline, turbulent air, nose crabs towards
What does NATOPS stand for?
Naval Air Training Operating Procedures Standardization
Mountain Flying Contour Crawl
60kts, level and balanced flight, 50-100’ from terrain
Best Type of Landing for Mountains
Loaded disk (torque @ baseline) and minimum rate of descent to a spot in upflowing air
Landing in Snow
Pick a dark object for reference, wave off if whiteout too strong, and wiggle the helicopter while slowly reducing power to break through the crust of the snow
What is the only continuously operating DC vibrator?
Standby attitude indicator
Coupler Bug Settings
0-2 ft = 0ft
2-22ft = 2ft below
22-35 = 20ft
35-210 = 15ft below
210+ = 20ft below
DESU vs ESU
DESU is on Turbomach/Sunstrand
Includes ability to control APU overtemperatures by regulating main fuel valve and start bypass valve
ADHEELS vs IHEELS
ADHEELS - lights upper half of cabin door and SO window
IHEELS - lights cabin door and SO window handles
Activated by 11-13Gs (not IHEELS), 100 +/- 5 pitch or roll, and saltwater or freshwater immersion
Translational Lift
Chapter 7 - appx 15kts
Chapter 11 - 17-30kts
Tail Rotor Spar Loads
Left rolls of 30* per second above 75kts may cause damage to the tail rotor spar
Autorotational Descent Velocity
3125-4450fpm
Practice Auto Nr
105%
Ground Resonance NWC
Caution
- Application of the rotor brake may aggravate lead lag tendencies and cause a mechanical failure
- Continued operations on deck with unusual vibrations may result in rotor system damage or mechanical failures
Warning
- Ground resonance can occur in under 3 seconds and cause violent vibrations resulting in difficulty reaching the PCLs, PIO, and dynamic rollover
- Failure to ensure that ground personnel are clear of the rotor arc and aircraft is free from the deck or chains may result in loss of aircraft or ground personnel
Engine High Speed Shaft Failure Indications
High-intensity, medium to high frequency vibrations felt throughout the aircraft accompanied by a howl
May have loss of transmission oil