Human Factors Criteria for the Design and Acquisition of ... - FAA

Draft for review and commentList of exhibitsExhibit 9.3.1.a Elbow angle............................................................................................... 4Exhibit 9.3.1.b Shoulder and upper arm position ............................................................... 5Exhibit 9.3.1.c Wrist extension/flexion .............................................................................. 5Exhibit 9.3.1.d Ulnar/radial deviation................................................................................. 5Exhibit 9.3.1.e Pronation/Supination.................................................................................. 6Exhibit 9.3.2 Keyboard surface height ............................................................................... 7Exhibit 9.4.1 Wrist rest ....................................................................................................... 8Exhibit 9.5.1.4 Maximum keyboard slope........................................................................ 11Exhibit 9.5.1.6 Keyboard thickness .................................................................................. 12Exhibit 9.5.1.7 Home row locators ................................................................................... 13Exhibit 9.5.1.8 Keyboard depth ........................................................................................ 13Exhibit 9.5.2.1.a QWERTY or Sholes layout.................................................................. 14Exhibit 9.5.2.1.b. Dvorak layout....................................................................................... 15Exhibit 9.2.5.1 c. Alphabetic (ABC) layout..................................................................... 15Exhibit 9.6 Keyboard functions ........................................................................................ 17Exhibit 9.6.2.2 Arrow key layout...................................................................................... 18Exhibit 9.7 Numeric keypads............................................................................................ 22Exhibit 9.8 Key dimensions.............................................................................................. 24Exhibit 9.8.6 Key tops ...................................................................................................... 25Exhibit 9.9.7 Symbol height/width and stroke width ....................................................... 27Exhibit 9.10.3.a High initial increase to actuation point................................................... 28Exhibit 9.10.3.b Overshoot area ....................................................................................... 29Exhibit 9.12.a Angled keys............................................................................................... 31Exhibit 9.12.b Adjustable-angle split keyboard................................................................ 32Exhibit 9.12.c Contoured or curved key keyboard ........................................................... 32Exhibit 9.12.d Fixed-angle separated keyboard................................................................ 32Exhibit 9.12.e Negative slope keyboard ........................................................................... 33Exhibit 9.12.f Tented keyboard ....................................................................................... 33Exhibit 9.12.g Vertical Split keyboard ............................................................................ 34Exhibit 9.12.h. Chord Keyboard...................................................................................... 35Exhibit 9.12.i Keyless keyboard ....................................................................................... 35iv