July Daily Questions

July Daily Questions

1. I'm taking off out of Alpine TX. My minimum climb rate for RWY 19 is 432’ per NM. At 80 kts, what climb rate (ft. per min) would get me 432’ per NM?

TC3-04.5 pg. 6-13
5-22. Certain IFR DPs require a minimum climb rate to assure proper obstruction clearance. However, the minimum climb requirement is stated in terms of feet to be gained per nautical mile. The aviator can easily convert FPNM to a number representative of FPM.

Converting Distance to Time Example
With a ground speed of 90 knots and a climb requirement of 400 FPNM, what is the rate of climb in FPM (figure 5-18)? 600 FPM.
Set 60 (speed) index to 90 (outer scale) for 90 knots.
Above 40 (inner scale) for 400 feet, read 60 (outer scale) for 600 FPM.

2. You are flying IFR with passengers onboard and ATC requests you to climb to “one-two thousand.” How long can you continue at this altitude without your occupants requiring oxygen? Your occupants do not require oxygen until above 14K

AR 95-1: 8–6. Oxygen system (Manned)
See TC 3–04.93 for restrictions on the use of oxygen. Approved oxygen systems will be used as follows:
a. Unpressurized aircraft. Oxygen will be used by aircraft crews and occupants for flights as follows:
(1) Aircraft crews.
(a) On flights above 10,000 feet pressure altitude for more than 1 hour.
(b) On flights above 12,000 feet pressure altitude for more than 30 minutes.
(2) Aircraft crews and all other occupants.
(a) On flights above 14,000 feet pressure altitude for any period of time.
(b) For flights above 18,000 feet pressure altitude, oxygen prebreathing will be accomplished by aircrew members.

-see PPC for next 3 questions:
3. You are flying at 120kts and begin to experience moderate turbulence: what airspeed do you adjust to? 

UH60M -10 CH.8
For moderate turbulence, limit airspeed to max range or VNE minus 15, whichever is less.

4. After you adjust to 117 (max range) you notice you have a 10kt headwind. What is your new max range airspeed? 119.5

UH60M -10 CH. 7 pg 7-17: When estimating max range, increase IAS by 2.5kts per 10kts of headwind and decrease 2.5kts per 10kts of effective tailwind

5. If I were to fly 117kts and pull 100% torque, what airspeed would I see? 82kts.

UH60M -10 Ch.7 Figure 7-7: max endurance/max R/C are essentially the same pitch attitude. The difference is the amount of power applied. Flying with 100% torque (or MTA), there would be a more downward flow of air across the the pitot tubes. The IAS in the cockpit would read ~10kts more. 

6. Which of the following is not an operational defect? Chicken Wire

NVG Operators Manual: Operational Defects- Flickering/flashing, Emission points, Shading, edge glow

7. Whilst flying over the desert, you notice a lack of visual cues and depth perception. Which visual illusion might cause this? Height/Depth Illusion

TC3-04.93: Par. 9-45

8. How many false statements?

NVGs magnify light by 2-3000x with a 40 degree FOV. I use scotopic vision while wearing them and primarily binocular cues to aid with distance estimation at night. 3 total 

There is no magnification with NVGs, they intensify the light by 2-3000x

Types of vision (par. 8-14) TC 3-04.93: Photopic vision is used when exposed to high levels of artificial light. 

Monocular cues are used at Night. Binocular is only of value when the object is close enough to make a perceptible difference (8-57) 3-04.93

9. The following enroute considerations apply to flight in mountainous terrain: Due to danger of encountering downdrafts, descents to follow terrain will be executed less than...? 1000f/m

TC 3-04.4 par. 3-156: Due to danger of encountering downdrafts, descents to follow terrain will be executed at less than1,000 FPM. When following terrain in a descent, aviators often need to reduce airspeed keeping the aircraft within operating limits. 

10. (Reference the PPC) During your hover power check, you confirm your hover power torque at 89%. Which maneuvers are you restricted from? Hoist

According to the PPC, 89% puts you above OGE power

UH60ATM: The aircrew will not attempt the tasks listed below when performance planning and the hover power check indicates that out of ground effect (OGE) power is not available. slingload, water bucket, fast rope, hoist, etc. 

Which of the following conditions is not listed as a contributing factor to blade compressibility?

TC3-04.4: The following operating conditions represent the most adverse compressibility conditions: High airspeed, High rotor RPM, High gross weight, High- density altitude, High G-maneuvers, Low temperature. Turbulent air.



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