1.12 HIGH DRAG SYMBOL.
This symbol
will be used throughout this manual to designate information applicable to the high drag con-.guration described in Chapter 7.
1.13 USE OF WORDS SHALL, SHOULD, AND MAY.
Within this technical manual the word shall is used to indicate a mandatory requirement. The word should is used to indicate a nonmandatory but preferred method of accom-plishment. The word may is used to indicate an acceptable method of accomplishment.
CHAPTER 2

AIRCRAFT AND SYSTEMS DESCRIPTION AND OPERATION

Section I AIRCRAFT
2.1 GENERAL.
This chapter describes the UH-60Q helicopter’s systems and .ight controls. The functioning of electrical and mechanical components is simpli.ed where more detailed knowledge is not necessary.
2.2 UH-60Q.
The UH-60Q (BLACK HAWK) (Figure 2-1) is a twin turbine engine, single rotor, semimonocoque fuselage, rotary wing helicopter. Primary mission capability of the helicopter is MEDEVAC. Secondary missions include transport of medical teams, deliver medical supplies, and provide support for combat search and rescue missions. The main rotor system has four blades made of titanium/ .berglass. The drive train consists of a main transmission, intermediate gear box and tail rotor gear box with intercon-necting shafts. The propulsion system has two T700-GE-700 engines operating in parallel. The nonretractable land-ing gear consists of the main landing gear and a tailwheel. Detailed descriptions of these systems are given in these chapters. For additional weight information, refer to Chap-
ters 5, 6, and 7. Kit installations for the helicopter consist of range extension tanks, rescue hoist, medical evacuation, infrared suppression, blade anti-icing/deicing, and blackout devices. Refer to this chapter and Chapter 4 for kit descrip-
tions.
2.3 DIMENSIONS.
Principal dimensions of the helicopter are based on the cyclic stick and tail rotor pedals being centered and the collective stick being in its lowest position. All dimensions are approximate and they are as shown on Figure 2-2.
2.4 TURNING RADIUS AND GROUND CLEAR-ANCE.

Main rotor clearance in Figure 2-3 is shown with cyclic centered and level ground. Cyclic displacement or sloping terrain may cause rotor blade clearance to be signi.cantly less.
For information on turning radius and ground clearance, see Figure 2-3.
2.5 COMPARTMENT DIAGRAM.
The fuselage is divided into two main compartments, the cockpit and cabin. The cockpit (Figure 2-4) is at the front of the helicopter with the pilots sitting in parallel, each with a set of .ight controls and instruments. Operation of elec-trical controls is shared by both. The medical interior con-tains space for the seating of three medical attendants, two independent medical stations are designed to transport six littered patients or six ambulatory (seated) patients or crew members. The litter platforms can also be moved up, out of the way to transport cargo. Restraint of cargo is by tiedown rings installed in the .oor. A medical cabinet provides stor-age for carry on equipment. Provisions for securing carry on medical equipment and supporting intravenous .uid bags are mounted throughout the cabin. A gust lock con-trol, APU accumulator handpump and pressure gage, and APU ESU are also installed (Figure 2-5).

1. PITOT CUTTER  13. MAIN LANDING GEAR DEFLECTOR / CUTTER 
2. BACKUP HYDRAULIC PUMP  14. LANDING GEAR JOINT DEFLECTOR 
3. NO. 1 HYDRAULIC PUMP AND NO. 1 GENERATOR  15. STEP AND EXTENSION DEFLECTOR 
4. UPPER (ROTOR PYLON) CUTTER  16. DOOR HINGE DEFLECTOR 
5. INFRARED COUNTERMEASURE TRANSMITTER  17. RIGHT POSITION LIGHT (GREEN) 
6. AFT MAINTENANCE LIGHT RECEPTACLE  18. RESCUE HOIST 
　
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