E6B

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The E6B flight computer, often called the "whiz wheel," is a circular slide rule used for flight planning. It's a mechanical, analog device that helps pilots perform essential calculations for various aspects of flight.

Here's a breakdown of what the E6B is used for:
Key Functions:

• Time, Speed, and Distance Calculations: Pilots can calculate ground speed, estimated time of arrival (ETA), flight time, fuel consumption, and more.
• Wind Correction: The E6B helps determine the effect of wind on the aircraft's course and ground speed, allowing pilots to calculate wind correction angle and heading.
• Conversions: The E6B can convert between different units of measurement, such as nautical miles, statute miles, kilometers, gallons, liters, pounds, and kilograms.
• Altitude and Airspeed Calculations: The E6B helps in solving true airspeed, density altitude, mach number and temperature conversions.

• Mechanical/Analog: These are the traditional circular slide rules. They come in various materials like cardboard, plastic, or aluminum.
• Electronic/Digital: An electronic flight computer performs the same functions as the circular slide rule, but are easier to use, more precise and can perform addtional flight calculations.