Figure 2-14.Cross and headwind computer assembly.

40.133

which the windspeed voltage from the other circuit is

speed of the wind. The function of components is the

applied.

same as in the synchro amplifier just described,

except that this mechanism positions a potentiometer

The sine-cosine potentiometer contains four

instead of a synchro transmitter.

stacked sections, one for each of the desired

WIND DIRECTION CIRCUIT

components

of windspeed. The signals from the angled deck

sections lag the signals from the straight deck

The wind direction circuit converts the synchro

sections by 10

signal output of the wind direction transmitter into

volt-ages proportional to the desired crosswind and

The dc power supply is a highly regulated unit

head-wind components of windspeed. This is done

that converts 115-volt, 60-Hz power to a 40-volt dc

with a mechanism similar to the one used in the

output.

windspeed circuit, which positions a sine-cosine

potentiometer, to

2-15