Subpart B. Subpart B—Determining Fuel Efficiency for Subsonic Airplanes

• § 38.11 - Fuel efficiency metric.
• § 38.13 - Specific air range.
• § 38.15 - Reference geometric factor.
• § 38.17 - Fuel efficiency limits.
• § 38.19 - Change criteria.
• § 38.21 - Approval before compliance testing.
• § 38.23 - Manual information and limitations.

• APPENDIX

  • Appendix A to Part 38—Determination of Airplane Fuel Efficiency Metric Value