Maximum Outer Main Gear Wheel Span given Taxiway Width Calculator

Maximum Outer Main Gear Wheel Span Formula:

\[ TM = TWidth - (2 \times C) \]

Maximum Outer Main Gear Wheel Span (m):

1. What is Maximum Outer Main Gear Wheel Span?

Definition: The distance between the outside edges of the main gear wheels of an aircraft.

Purpose: This measurement is crucial for airport taxiway design to ensure safe clearance for aircraft movement.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ TM = TWidth - (2 \times C) \]

Where:

\( TM \) — Maximum Outer Main Gear Wheel Span (meters)
\( TWidth \) — Taxiway Width (meters)
\( C \) — Clearance Distance (meters)

Explanation: The formula calculates the maximum allowable wheel span by subtracting twice the required clearance distance from the taxiway width.

3. Importance of This Calculation

Details: Proper calculation ensures aircraft can safely maneuver on taxiways without risk of wheel contact with edges or obstacles.

4. Using the Calculator

Tips: Enter the taxiway width and required clearance distance (both in meters). The ±5% indicates typical tolerance ranges for these measurements.

5. Frequently Asked Questions (FAQ)

Q1: Why is clearance distance doubled in the formula?
A: Because clearance is needed on both sides of the taxiway (left and right).

Q2: What's a typical clearance distance?
A: This varies by aircraft size and airport standards, but 4.5m is common for large aircraft.

Q3: How does this relate to aircraft design?
A: Aircraft main gear must be designed to fit within this calculated span for the airports they'll use.

Q4: What if my aircraft exceeds this span?
A: Special arrangements or wider taxiways would be needed, possibly requiring airport modifications.

Q5: Does this account for turning radius?
A: No, this is for straight sections. Additional space is needed for turns.