AF Form 4138: EC-130 Flight Plan & Navigation Log (PDF)

AF Form 4138: EC-130 Flight Plan & Navigation Log (PDF) – AF Form 4138: EC-130 Flight Plan and Navigation Log (LRA) is a specialized U.S. Air Force form designed for detailed flight planning and in-flight navigation logging on EC-130 aircraft variants.

This form supports the unique operational requirements of EC-130 missions, such as electronic warfare (e.g., Compass Call) and psychological operations/broadcasting (e.g., Commando Solo), which often involve extended ranges, precise navigation, fuel management, and contingency planning.

What Is AF Form 4138?

AF Form 4138, titled EC-130 Flight Plan and Navigation Log (LRA), is an official Air Force Information Management Tool (IMT) originally dated March 1, 2000 (AF IMT 4138, V1). It serves as a comprehensive document for:

  • Pre-flight planning: Fuel calculations, weight and balance, route planning, and alternate airport contingencies.
  • In-flight navigation logging: Tracking waypoints, fuel burn, winds, celestial computations, pressure pattern navigation, and performance data.
  • Post-flight documentation: Fuel management summaries and signatures for accountability.

It is tailored for the EC-130 (based on the C-130 Hercules airframe), which features a crew including pilots, navigators, and electronic warfare specialists. The form includes dedicated sections for advanced techniques like celestial fixes, heading calibrations, and Equal Time Point (ETP) computations critical for long-range or overwater missions.

Key Features (from the official form structure):

  • Fuel Plan section: Ramp fuel, takeoff weight, enroute, reserves, alternates, holding, and unidentified extra fuel.
  • Navigation Log: Route waypoints, ETA, altitude, TAS, wind, true course, magnetic heading, groundspeed, and distance.
  • Specialized Computations: Pressure pattern, celestial computation log, heading calibration, airspeed calibration, and ETP.
  • Signatures: Navigator and pilot accountability.

It spans multiple pages (typically 4) to accommodate detailed logs for complex sorties.

Purpose and Importance in EC-130 Operations

EC-130 aircraft perform high-stakes missions:

  • EC-130H Compass Call: Electronic attack, jamming enemy communications, and suppressing air defenses.
  • EC-130J Commando Solo: Psychological operations, broadcasting, and special operations support.

These missions demand rigorous fuel and navigation planning due to potential electronic warfare environments, extended loiter times, and the need for precise positioning. AF Form 4138 ensures compliance with safety, standardization, and operational procedures outlined in publications like DAFMAN 11-2EC-130J Volume 3 (EC-130J Operations Procedures).

It supports:

  • Accurate fuel management to prevent issues on long-duration flights.
  • Redundancy in navigation (e.g., celestial and pressure pattern backups in GPS-denied environments).
  • Mission documentation for after-action reviews and safety investigations.

Note: While core C-130 operations use other forms (e.g., DD Form 175 or standard flight plans), the EC-130 variant relies on this specialized log for its unique navigation and EW requirements.

Who Uses AF Form 4138?

  • EC-130 pilots, navigators, and flight engineers in active duty, Air Force Reserve, and Air National Guard units.
  • Primarily assigned to units like the 55th Electronic Combat Group at Davis-Monthan AFB, Arizona, or AFSOC units operating EC-130J variants.
  • It is referenced in EC-130-specific manuals for flight operations and training.

U.S.-based operators (target audience) access it through official e-Publishing channels for training, deployments, and routine missions.

How to Obtain and Use AF Form 4138?

  1. Download the Official Form:
    Download AF Form 4138 PDF here (direct from Air Force e-Publishing).
  2. Filling It Out: Follow unit SOPs and DAFMAN 11-2EC-130J guidance. Key steps typically include:
    • Enter aircraft details, call sign, route (FROM/TO), takeoff time.
    • Compute fuel plan (ramp, takeoff, reserves, alternates).
    • Log waypoints with navigation data.
    • Perform specialized calculations (celestial, pressure pattern) as needed.
    • Obtain signatures upon completion.
  3. Related Publications:
    • DAFMAN 11-2EC-130J, Vol 3: Operations Procedures.
    • Aircrew training and evaluation manuals for EC-130 variants.

Always use the most current version from official .mil sources. Forms may be filled digitally or printed, depending on unit policy.

Why This Form Matters for USAF Personnel?

In an era of contested airspace and advanced threats, precise documentation like AF Form 4138 enhances mission effectiveness, safety, and accountability. It bridges traditional navigation skills with modern electronic warfare operations, ensuring EC-130 crews can execute complex missions reliably.

For U.S. Air Force aircrew, maintainers, or planners seeking this form, the official download link above provides the blank template. Consult your squadron standards or flight manuals for version-specific instructions and integration with digital tools.

Last Updated Guidance: Refer to the latest e-Publishing releases and DAFMANs for any revisions. This form remains a key tool in the EC-130 community for safe, effective flight operations.