Back to results
US 4,276,702 AGranted
Aircraft flight simulating trainer
AssigneePacer Systems, Inc.
InventorJoshua Horwitz
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneePacer Systems, Inc.
InventorJoshua Horwitz
Estimating the term…
A flight simulator instrument trainer has operational controls and instruments similar to a conventional aircraft. An AC driven position simulator moves a simulated station position according to simulated power, attitude, flap condition direction and distance traveled to control simulated ADF, ILS and VOR instruments. Angularly offset phases are generated and are provided to potentiometers on directional instruments. Wipers on the potentiometers move with simulated direction indicators. Signals from the wipers are fed to other devices, and phases are compared with one of two ninety degree offset reference phases. The latter are shifted according to simulated flight characteristics, and the thus-varied output of the phase comparators are used to drive instruments and to shift angle position accumulators and distance position accumulators. Logic arrays control initiating signals which prevent attitude and altitude instrument changes until flight conditions are reached and indicate stalls and prevent stall indications during touchdown. An astable vibrator applies minor amplitude perturbations to motor drives for simulated altimeters and directional and attitude instruments. A stable vibrator provides selectively and cyclically variable counts which are converted to analog turbulence signals. The vibrator and a counter also provide signals to an up-down counter for a flap position indicator. Throttle setting controls an engine power signal and a count down counter to produce fuel consumption indications and engine sound. The counter is reset by a simulated fuel tank change switch.
Aircraft instrument flight simulator apparatus comprising an AC power supply, a four phase oscillator connected to the power supply for producing four separate phases at 90 degree offset intervals, a directional indicator potentiometer connected to the four phase oscillator for selecting phase according to simulated heading, a four phase generator connected to the directional potentiometer.
A simulated instrument landing system comprising means for providing a signal of simulated altitude above ground, means for generating an ideal altitude, an analog subtractor connected to the altitude above ground means and the ideal altitude means, and an indicator connected to the analog subtractor for indicating deviation from desired glide slope, a four phase oscillator means for generating four separate oscillations of 90 degree displacement, a directional indicator potentiometer connected to the oscillator for selecting phases, a phase generator connected to the oscillator, a track comparator having inputs connected to the directional indicator potentiometer and to the phase generator, a distance accumulator connected to an output of the track comparator and connected to a control input of the ideal altitude generator for controlling the ideal altitude generated according to the distance accumulated.
A simulated aircraft VOR system comprising a four phase oscillator, a two phase generator connected to the oscillator, a directional indicator potentiometer connected to the oscillator, a track comparator connected to the phase generator and directional indicator potentiometer and a distance accumulator connected to the track comparator, the track comparator connected to a control terminal of the phase generator to adjust the phase generator.
An aircraft flight simulator instrument trainer comprising a master system oscillator for producing separate oscillations at ninety degree spaced intervals, a master phase locked oscillator connected to the master system oscillator for dividing oscillations of the master system oscillator, a present divider connected to the master phase locked oscillator for dividing oscillations of the master phase locked oscillator, an accumulator means connected to the divider for counting oscillations and multiplexer means connected to the accumulator means for changing the accumulator means, and input means connected to the multiplexer means and for inputting simulated navigational quantities to the accumulator.
An aircraft flight simulator instrument training apparatus comprising a simulated automatic direction finding indicator a multiple phase power source connected to the indicator, and phase sensing means connected to the indicator for sensing phase output from the indicator according to simulated aircraft heading on the indicator, a four phase generator having an input connected to the phase sensing means for producing from the sensed phase four outputs having phase separation, an automatic direction finding indicator having an indicator drive motor and a potentiometer connected to the indicator for aligning with indicated direction on the indicator, means connecting the phase separated outputs from the four phase generator to the automatic direction finding potentiometer, and wiper means on the potentiometer for selecting an output of the potentiometer, a phase comparator connected to the output of the automatic direction finding indicator and having an input connected to a signal of predetermined phase, a motor amplifier connected to an output of the phase comparator and connected to the automatic direction finder indicator motor for driving the motor and changing the indicated direction.
Flight simulator aircraft instrument trainer localizer apparatus comprising a source of phase signals, a potentiometer connected to the source of signals, and connected to a simulated directional indicator for moving with the directional indicator, a phase comparator having inputs connected from the potentiometer and connected to a source of variable phase signals, an integrator having an input connected to an output of the phase comparator, and a localizer indicator connected to an output of the integrator.
Dependencies are inferred from the claim text.