MH60T Trivia #201-225

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? 

201. Q: Flight is allowed in what turbulence? 
A: Light (“moderate turbulence should be avoided in rotary wing aircraft” – 3710). 

202. Q: Turbulence procedure? 
A: 1. Crew alert 2. Airspeed adjust to 10 kts. below blade stall (light), 15 kts. below blade stall (moderate). 3. Loose equipment secure. 

203. Q: Turbulence airspeeds? 
A: Light: blade stall minus 10, Moderate minus 15. 

204. Q: Turbulence technique? 
A: Hold collective and cruise pitch. 

205. Q: What can happen to the electrical system and engine condition in a severe lightning strike? 
A: Loss of all power except the battery utility bus, APU generator may not work (even if turned off). If voltage is induced in the engine wiring, both engines go to max power w/no TGT limiting due to damage to the alternator and AC electrical system. The battery should still work. 

206. Q: Taxi checks? 
A: Check brakes… HSD, ADI, wet compass, ESIS and turn slip. 

207. Q: Hover checks? 
A: Flight Controls, System Inst., Flight Inst., Power, Radar (as required). 

208. Q: Abbreviated before takeoff checks? 
A: PCLs (Fly), PFD (Np/Nr, torques), EICAS, AFCS (on), stab automode (on). 

209. Q: Abbreviated before landing checks? 
A: PFD (Nr/Np, torques), EICAS, Tailwheel (locked), Parking Brake (as required). 

210. Q: Any two generators power which AC buses? 
A: All five (#1 and #2 primary, AC essential, secondary, monitor). 

211. Q: With only one main generator and back up pump off? 
A: Only the monitor is dropped. 

212. Q: With only one main generator and back up pump on? 
A: The monitor and secondary buses are dropped. 

213. Q: With only the APU generator? 
A: The monitor and secondary buses are dropped (Back up pump on or off, it doesn’t matter). 

214. Q: The monitor bus powers what items? 
A: The main rotor de-ice. 

215. Q: The secondary bus powers what items? 
A: The T/R de-ice, the copilot windshield and center windshield anti-ice. 

216. Q: When will MR DE-ICE and TR DE-ICE fail cautions NOT be on, even though the systems are NOT working? 
A: When running on APU power only, these cautions do not appear (e.g., they will not appear when flying in icing conditions following a transmission malfunction that prompts the crew to start the APU and secure the main generators – you can demonstrate in the aircraft – recommend you do it on the ground). 

217. Q: External AC power powers which buses? 
A: All of them. 

218. Q: Without turning on the battery, what can be activated? 
A: Utility lights, reserve fire bottle, (floats – if ever reinstalled). 

219. Q: If both generators are running and the APU gen. is turned on (with APU running), what will happen? 
A: Nothing, the APU gen. will not be connected to the system unless it is required to provide power. 

220. Q: With a #1 or #2 GEN BRG caution light how long will the generator function? 
A: Up to 10 hrs. 

221. Q: #1 converter normally powers which buses? 
A: #1 DC primary, DC ess., battery bus. 

222. Q: #2 converter normally powers which buses? 
A: #2 DC primary. 

223. Q: The battery normally powers which bus? 
A: The battery utility bus. 

224. Q: Without any DC power from the converters, which buses will the battery power? 
A: The battery utility bus, battery bus (if the switch is on), DC essential bus (if the battery is on). 

225. Q: With a 90% charge at 85% capacity, how long will the battery operate? 
A: 34 mins. without shedding, 41 with shedding.