Specifications
MILSTD-1472E
backlash, cross-coupling, or need for multiple corrective rnovcments. Control ratios, friction, and
inertia shall meet the dual requimnents of rapid gross positioning and precise fm positioning. When
ajoystick is used for generating fteedrawn graphics, the CRT refresh rate shall be sufficiently high to
display the follower as a continuous track. Delay between control movement and the confting
display response shall be minimized and shall be not more than O.I second.
5.4.3 .2.2.1.3 Dimensions, resistance, and clearance. The hand grip length should be 110-180
mm (4.3 -7.1 in). The grip diameter shall be not more than 50 mm (2 in). Clearances of 100 mm (4
in) to the side and 50 mm (2 in) to the rear shall be provided to allow for hand movement. Joysticks
shall be mounted to provide forearm support. Modular devices shall be mounted to allow actuation of
the joystick without slippage, movement, or tilting of the mounting base.
5.4.3 .2.2.2 Finger operated disthement ioysticks
5.4.3 .2.2.2.1 Smific use. In addition to general uses, finger operated displacement joysticks
are useful for free-drawn graphics. In this application, there is usually no spring return to cenkr, and
the resistance should ‘besuff~cientto maintain the handle position when the hand is removed.
5.4.3 .2.2.2.2 Dynamic characteristics. Dynamic characteristics shall conform to 5.4.3.2.2.1.2.
Rtxessed mounting or pencil attachments maybe utilized as indicated in Figure 18, to provide greater
precision of control.
5,4.3 .2.2.2.3 Dimensions, resistance, and cka.rance. The joystick should be mounted on a
desk or shelf surface as shown in Figure 18. Joysticks shall be mounted to provide forearm or wrist
support. ModuIar devices shall be mounted to allow actuation of the joystick without slippage,
movement, or tilting of the mounting base.
5.4.3 .2.2.3 Thumbt@/finfzcrtiume rated disdacement iowicks.
5.4.3 .2.2.3.1 SIXXificuse. Thumbtip/fingertip operated joysticks may be mounted on a
handgrip, which seines as a stcdy rest to damp vibrations and increase precision. If so mounti the
handgrip shall not .
mwhneady Iinction as
ajoystick controller.
5.4.3 .2.2.3.2 Dynarru“cCilalllwteristics. Movement shall not exceed 45° !bm the center position.
5.4.3 .2.2.3.3 Dirmmsions. resistance, and clearance. Joysticks shall be
mounted to provide
wrist or hand support. Console mounted devices shall be mounted as shown in Figure 18. Modular
devices shali be mounted to allow actuation of the joystick without slippage, movement, or tilting of
the mounting base.
5.4.3.2.3 bamtlic.imwtickti ‘ fxmtrdkj
(Also kwwa as stiff st.idL force stick, or
pressure stick. Tb control has no pe~&k movemen~ but its output is a function of the force
*@.) ~ joys-my k used
for tasks requiringprecise or continuouscontrol in two or
I’lKm!related dimensbns
Imdarepmieularly appropiete
fwap@dOna: (1) Whichrequire precise
returnto antcr after each use,(2) in which opewitor fedback is primarilyvisual rather than tactile
feedback fra the can$rol itself, and (3) where there is minimal delay and tight coupling between
control and input and system reaction. kmetric sticks should not be used in applications that require
theoperator to maintain a constant force on the cmtrol for a long period of time or that provide no
when mw&?wwn&w@u&h k &x&e&xi
Iscun&c .jC@CkS may
be
IIw+
when the tmk requires
pm~i= or ~n!!nu:us COntrOl in two
or more related dimensions. When
positioning
speed is more crltlcal than poslhonmg accuracy, isometric joysticks strotdd be sciezted over
(!i\]}!; lL’(’llll’lll iovstjcks !sornetric jovstlcks rnav a[so he
use(i h V8riOUS dkp]av func[lons such iIs
&ti
pickoff from a CRT. In rate coritrol applicatmns, which may aliow the