MH60T Trivia #376-400

This trivia series distills over 20 years of flight manual study into 500+ focused questions and answers, posted in 25 question sets. It’s not a substitute for the manual, but rather an aid to facilitate study and strengthen airmanship. During your review, ask yourself: How is this operationally relevant? Do I need to memorize it, or just be familiar with it? Should I review more on this topic?

376. Q: Control authority with a wheel on the ground? 
A: On a slope landing when the roll center of the helicopter is transferred from the center of gravity to the touchdown wheel, cyclic lateral control is 1/5th of the airborne value. When the pivot point is the wheel, with a substantial reduction in cyclic control, collective provides a significant contribution to roll control. 

377. Q: The best indication of saltwater power deterioration is the relationship between these? 
A: TGT and torque (rise in TGT for the same amount of torque). 

378. Q: Saltwater deterioration winds and altitudes? 
A: Above 30′, salt build up is minimal. With winds at 15-20 kts., most saltwater is blown behind the engines. 8-12 kts. creates the most saltwater ingestion. From 30- 15′, rate of buildup is moderate. From 30′ to 5’, increase in saltwater ingestion is non-linear. 

379. Q: Failed stabilator flight characteristics? 
A: With the stab fixed at 0°, the helicopter will hover 1-2° more nose up. Higher pitch attitudes are necessary for deceleration. Accelerating through 30 kts. may result in nose pitching up slightly. 

380. Q: Pilot preflight inspection? 
A: Check for visible fuel, oil levels and leaks. Check security of panels and doors, look for FOD. Check main and tail rotor blades to include damper and BIM indicator. Chocks in place, grounding wire removed. Covers and tie down equipment removed. Tailwheel mechanical lock pin up. Stabilator. 406 EPIRB armed. Cargo, seats, equipment secured, nothing under seats. Cockpit and cabin exits clear of obstructions. 

381. Q: ESIS airspeed limits? 
A: ESIS is not reliable below 50 kts. ESIS shall match the MFD/PFD within 7 kts. 

382. Q: Lateral deviation scale? 
A: Full scale – oceanic 4 nm, en-route 2 nm, terminal 1 nm, approach .3 nm. 

383. Q: Vertical deviation scale? 
A: One dot – enroute 250′, terminal 250′, approach 125′. Full scale – enroute 500′, terminal 500′, approach 250′. 

384. Q: Wind speeds that result in display? 
A: Display removed below 4 kts. and displayed when wind increases to 6 kts. or higher. 

385. Q: Last valid wind display airspeed? 
A: When airspeed drops below 40 KIAS, the MFD manager maintains the last valid wind indication. 

386. Q: Speeds to display and remove hover display? 
A: Displayed below 50 kts. groundspeed. Removed above 55 kts. Groundspeed. 

387. Q: Hover display velocities? 
A: 10 kts. per deviation. 40 kts. full scale. 

388. Q: Hover display distances? 
A: 0.2=100 yds. per deviation, 1=500 yds., 2=1000 yds. 

389. Q: Recommended airspeed and altitude when a main transmission failure is imminent? 
A: 80 KIAS /80′ AGL. 

390. Q: What is required for performance planning each flight? 
A: Evaluation of performance data is required for each flight. Old FM guidance – Max torque available, predicted power to hover, single engine capable airspeed (not asterisked but required – cruise data shall be computed above 6000′. Arrival data should be computed for changes of 10°C, 2000′ PA and/or an increase of 1000 lbs. or more in AC weight.). 

391. Q: Standard fuel burns at sea level? 
A: APU ON – 170 lbs./hr., engines at IDLE – 360 lbs./hr., engines at IDLE, APU ON – 530 lbs./ hr., engines at FLY – 504 lbs./hr. 

392. Q: Tank max capacity – Mains (590 gals) (Jet-A/JP5)?
A: 4012 lbs.

393. Q: Tank max capacity – 120 and 113 (Jet-A/JP5)?
A: 816 lbs. and 768 lbs.

394. Q: Tank max capacity – 80 and 75 (Jet-A/JP5)?
A: 540 lbs. and 510 lbs.

395.  Q: Tank empty weight – 120 and 113?
A: 145 lbs. and 196 lbs.

396.  Q: Tank empty weight – 80 and 75?
A: 105 lbs. and 170 lbs.

397.  Q. When is jettison of external auxiliary tank via the ALL STORES SONO button inhibited?
A. When the tank indicates less than 1/3 of its maximum capacity.      

398. Q: 1/3 capacity for jettisoning each external tank via the ALL STORES SONO button?
A: Approximately 120 = 272 lbs., 113 = 256 lbs., 80 = 180 lbs., 75 = 176 lbs.

399.  Q: Fuel transfer rate?
A: 250-300 lbs./minute.

400.  Q. Which handle direction locks the safety harness and allows you to jettison the cockpit and cabin door window?
A. Forward