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Altitudes and speeds on military training routes

Remote Pilot (Part 107) practice question 31 of 31 on Airspace / Operational Requirements. ACS element UA.II.B.K4 · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONMilitary training routes (MTRs) are usually established for military aircraft operations at which altitudes and speeds?

  1. ABelow 10,000 feet MSL, at or under 250 knots
  2. BAbove 14,500 feet MSL, above 250 knots
  3. CBelow 10,000 feet MSL, above 250 knots
Show the answer and explanation

Correct answer: C. Below 10,000 feet MSL, above 250 knots

  • A — incorrect High speed is the reason these routes exist; military aircraft use them at speeds in excess of 250 knots.
  • B — incorrect These routes are normally established below 10,000 feet MSL; only some segments are defined higher, and then only for route continuity.
  • C — correct MTRs are usually established below 10,000 feet mean sea level for operations at speeds in excess of 250 knots, which is why they are a hazard a remote pilot should know about.

BACKGROUND

Military training routes are used by military aircraft to maintain proficiency in tactical flying, and low altitude combined with high speed is exactly what makes them a collision concern. Routes are identified as instrument flight rules (IR) or visual flight rules (VR) followed by a number. A route with no segment above 1,500 feet above ground level (AGL) carries four number characters, such as IR1206 or VR1207, while a route that includes one or more segments above 1,500 feet AGL carries three number characters, such as IR206 or VR207. Visual flight rules sectional charts depict military training activities including these routes. IR routes are flown in accordance with instrument flight rules regardless of weather conditions.

STUDY TIP

Memorize the pairing of low altitude with speeds above 250 knots, and learn the digit count trick: four digits means the route stays at or below 1,500 feet AGL, three digits means part of it goes higher.

KEY POINTS

  • MTRs are usually established below 10,000 feet MSL for speeds in excess of 250 knots.
  • Four number characters mean no segment above 1,500 feet AGL; three mean at least one segment is higher.
  • Routes are labeled IR for instrument flight rules and VR for visual flight rules.

SOURCES

  • remote_pilot_study_guide.txt ch2 "Other Airspace Areas / Military Training Routes (MTRs)"
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MORE ON AIRSPACE / OPERATIONAL REQUIREMENTS

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.