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5731573 |
Tide calculator
A pocket tide calculator is described which predicts tide times and moon phases in a visual display which gives the semi-diurnal tide times in any given day of the month and can be readily set for...
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5167072 |
Directional plotter for underwater searches
A directional plotter for underwater searches, land searches, land orienting, or the like includes a pair of first and second relatively rotatable discs with the first disc including first, second...
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5137302 |
Analog slide display
A device for rapidly obtaining data related to destination points in the form of a navigational chart that supports a slide to move in a defined path relative to and beneath the display. A window...
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4920033 |
Rotatable disk teaching apparatus
A demonstrative teaching apparatus for teaching the relationship between variable pictorial and/or graphic displays and their respective numerical values, in which the entire apparatus is...
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4886458 |
Mechanical analog computer device
This invention provides an inexpensive but accurate mechanical analog computer device for providing information based on the relative positions of two or more indicia bearing members at least one...
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4855577 |
Navigational and yacht racing calculator
A navigational calculator (10) for establishing the ratios of time, or distance, to be spent on port or starboard tacks, respectively, during the maneuvering of a yacht to a windward destination. A...
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4689476 |
Mariner's dogleg course distance calculator
There is disclosed a marine calculator of the slide rule type whereby the running distance to a destination station over a dogleg or zig zag course may be readily determined from knowledge of the...
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4652728 |
Wind and course calculator for navigation
A wind and course calculator for navigation is provided comprising two superimposed disks made from a transparent material, a mobile disk 1 movable in rotation and in translation carrying a network...
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4491724 |
Course and heading computer
A course and heading computer for use with marine charts which includes a transparent planar baseplate having a semicircular edge at one end joined with rectangular edges at the opposite end, the...
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4456821 |
Time/speed/distance slide rule
A slide rule for solving time/speed/distance problems where distances are measured with a single or universal ruler applicable to all charts or maps regardless of scale. Result is achieved by...
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4446361 |
Aircraft flight computer
The purpose of this invention is to provide an improved structure for a flight computer used by aircraft pilots. This improved computer structure is constructed of sheets of material fastened...
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4359629 |
Tactical indicator for bulkhead and other compasses
Yacht racing is becoming more scientific and to assist a skipper in quantifying the shortest course to sail to take advantage of wind direction, a tactical aid is provided. The aid is a device for...
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4346288 |
Fuel saving aircraft descent calculator
A manually operable calculator for optimizing aircraft fuel consumption during descent from an actual altitude to a target altitude/distance. Altitude and distance scales are provided which are...
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4272107 |
Tide time indicator
A tidal time indicator for determining tide times at various locations on a specific stretch of coastline comprises a pair of complementary charts. One of the charts is in the form of a map having...
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4251721 |
Pattern and threshold speed calculator
A circular disk type calculator for determining the proper approach speed for a particular aircraft within a specified range of gross weights and flap settings. The calculator includes three...
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4176860 |
Street address locating aid
A street address locating aid includes two printed paper discs. Street addresses and cross streets are printed in concentric circles on both sides of each disc. A printed paper carrier having first...
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4134006 |
Navigational wind effect computer for aircraft
A device utilizing three discs, which are rotatably positionable relative to each other, is provided for computing aerial navigation wind correction angle and ground speed correction for various...
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4035617 |
Tide and time calculating device
A time and tide calculating device for wrist watches clocks and calculators that register the tides and the time of the tides, comprising rotatable concentric tide and calendar discs placed...
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4011987 |
Aircraft descent profile calculator
An aircraft descent calculator including a central member defining an outer annular dial face about the periphery thereof; an intermediate member defining an intermediate annular dial face about...
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3957199 |
Navigational aids
A course correction calculator for use in light aircraft includes two arms pivotally connected together and each independently pivoted over a map supported on a base. The pivot connecting the two...
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3835299 |
NAVIGATIONAL COMPUTERS
A navigational computer for solving wind vector problems including a plurality of rotatable discs having cooperatively arranged wind grid, aircraft grid, and 360° compass rose, for setting and ...
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3825180 |
AIRCRAFT APPROACH GUIDE
A landing approach computer is disclosed which allows computation of landing approach data in relation to ground speed. The computer is cooperable with a grid which provides a profile display of a...
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3803389 |
COURSE LINE COMPUTER
A mechanical computer of the circular slide rule type is described, which will permit a pilot to utilize a nagivational technique known as area navigation (RNAV). Scales are provided which permit...
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3693873 |
FLIGHT PATH CALCULATOR
A flight path calculator in the nature of a circular slide rule having first and second relatively movable scale bearing members. The first of such members is logarithmically scaled with numerical...
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3674987 |
AIRCRAFT NAVIGATIONAL CALCULATOR
A calculator, which enables a pilot of an aircraft to determine the distance of the aircraft from a VOR station when the ground speed of the aircraft is known or the ground speed of the aircraft...
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3638311 |
NAVIGATIONAL CALCULATOR
A calculator for solving navigational problems, particularly adaptable for use by pilots of light planes. The calculator is a single sheet of flexible, transparent material having a set of curves...
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3528605 |
HOVER PERFORMANCE COMPUTER
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3496640 |
NAVIGATIONAL PLOTTER
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3373932 |
TIME,SPEED AND DISTANCE COMPUTER
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3369745 |
Fractional dial computer
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3360195 |
Bearing-angle device
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3350007 |
Navigation slide rule
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3347459 |
Space and terrestrial computer
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3276682 |
Computer for air navigation
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3231188 |
Computer
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3220643 |
Navigation instrument
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3220644 |
Flight data computer
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3193195 |
Navigational instrument
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3100601 |
Aircraft traffic pattern and runway computer
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3063626 |
Navigation aid
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3060626 |
Bubble-forming method and apparatus
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2969179 |
Intercept course calculator
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2916825 |
Display for a navigational instrument
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2901167 |
Cross-wind component computer
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