Muir Army Air Field (Fort Indiantown Gap) Airport

Muir Army Air Field (Fort Indiantown Gap) Airport is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the US AIP for current access procedures and restrictions.

Overview

Muir Army Air Field is located at Fort Indiantown Gap near Annville, Pennsylvania, serving as a medium airport primarily supporting military aviation operations. Situated at an elevation of 488 feet MSL, the airport provides critical infrastructure for training and tactical air mobility in the northeastern United States.

Flying Conditions

Weather conditions at KMUI demonstrate predominantly favorable flying conditions, with 67.6% of observations reporting VFR conditions. The airport experiences moderate temperature variations, ranging from -17°C to 31°C, with an average temperature of 6.9°C. Wind patterns are predominantly westerly at 270°, with an average speed of 7.5 knots and periods of calm occurring 35.8% of the time.

Notable Features

The airport features a single runway (07/25) measuring 3,967 feet with an asphalt surface. Geographically positioned at coordinates 40.435214, -76.568661, the airport is located in a region with varied terrain typical of central Pennsylvania. Wind data indicates consistent favorable wind alignment for runway 07/25, with an average crosswind of just 3.7 knots.

Approach Considerations

Seasonal visibility averages 9.2 statute miles, with only 2.1% of observations reporting visibility below 3 miles. September, October, and November represent the most consistent VFR months for operations. Pilots should be prepared for occasional reduced visibility, with fog present in 2.5% of observations, and potential wind variations despite generally mild conditions.