海岸警卫队飞机的可用性和使用

NOVEMBER | 2025 At a Glance In this report, the Congressional Budget Office analyzes patterns in the availability and use of aircraftby the U.S. Coast Guard, the agency responsible for protecting the nation’s waterways, from 2006 to2024. CBO looks at availability—a measure of the percentage of time aircraft can be flown for train- Here are CBO’s findings about the fleet’s size, availability, and use: •Size.As of 2024, the Coast Guard had about 200 manned aircraft. About three-fourths of thoseare rotary-wing aircraft (H-65 and H-60 helicopters), and the rest are fixed-wing aircraft. Sincethe early 2010s, the number of Coast Guard aircraft has declined. •Availability.From 2006 to 2024, the availability of Coast Guard aircraft decreased slightly.Availability of fixed-wing aircraft has been generally lower than that of helicopters, although theirrespective availability rates have converged in recent years. In 2024, the Coast Guard’s average •Use.Total flying hours for Coast Guard aircraft have decreased since 2006. Use of the H-65 fleethas declined the most, especially since 2019. The fixed-wing C-144 fleet has logged the most •Comparison With Availability and Use of Other Aircraft.In general, Coast Guard aircraft flymuch more than similar Department of Defense (DoD) aircraft, but their availability rates are •Comparison With Availability and Use When Operated by the Navy.CBO analyzed 10 CoastGuard H-60s that were formerly operated by the Department of the Navy. During service in theNavy, those H-60s flew fewer hours, on average, than other H-60s operated by the Navy. Afterthose H-60s were refurbished in a depot to perform different missions, the Coast Guard began •Availability and Use During the Pandemic.Even though the availability rate of Coast Guardaircraft did not change markedly during the coronavirus pandemic, their flying hours dropped in Contents Types of Aircraft Operated by the Coast Guard Aircraft Availability5 Aircraft UseTotal Flying HoursFlying Hours per Aircraft Relationships Between Helicopters’ Age and Their Use and AvailabilityDepot Periods for Coast Guard HelicoptersUse of Coast Guard Aircraft, by Location Analysis of Former Department of the Navy AircraftUse of Coast Guard Helicopters by the Department of the NavyComparison of Use by the Department of the Navy and the Coast Guard Effects of the Coronavirus Pandemic on Aircraft Availability and Use13Effect on Availability Rates13Effect on Flying Hours per Aircraft13 About This Document15 Notes About This Report All years referred to in this report are federal fiscal years, which run from October 1 to September 30and are designated by the calendar year in which they end. Numbers in the text and figures may not add up to totals because of rounding. An aircraft’s age refers to how long it has been since the Coast Guard took possession of that aircraft.Age 1 consists of months 1 to 12, age 2 consists of months 13 to 24, and so forth. (That countingscheme differs from traditional birthday enumeration in which, for instance, a 6-year-old child has Data about Coast Guard aircraft in this report come from the Coast Guard’s Asset LogisticsManagement Information System (ALMIS). Data about Air Force helicopters come from the AirForce’s Reliability and Maintainability Information System (REMIS). Data about Army helicopterscome from the Global Combat Support System–Army Enterprise Aviation data system. Data about This report is the latest in a series of related publications. CBO previously analyzed the availabilityand use of aircraft in the U.S. Air Force, the U.S. Army, and the Department of the Navy (including •Availability, Use, and Operating and Support Costs of F-35 Fighter Aircraft(June 2025),www.cbo.gov/publication/61347.•Availability and Use of Aircraft in the Army(September 2024),www.cbo.gov/publication/60313. On the cover: The illustration, by R.L. Rebach, depicts, from top to bottom, a C-144 Ocean Sentry,an H-60 Jayhawk, and an H-65 Dolphin. Availability and Use of Aircraftin the Coast Guard This Congressional Budget Office report analyzes the availability and use of aircraft by the U.S. Coast Guard from2006 to 2024. That agency, which is part of the Department of Homeland Security, ensures the safety, security, andstewardship of the nation’s waterways. It handles a broad range of missions, from search and rescue to drug interdic- CBO analyzed the six different types of manned aircraft that the Coast Guard operated over the 2006‒2024 period—two fleets of rotary-wing aircraft, or helicopters (H-60s and H-65s), and four fleets of fixed-wing aircraft (C-27s,C-130s, C-144s, and U-25s). C-130s, H-60s, and H-65s were operated by the Coast Guard every year from 2006 to2024. The C-144s entered Coast Guard service in 2008, and the C-27s entered Coast Guard service in 2016.1The In 2024, the Coast Guard had about 200 manned aircraft. Roughly half of those aircraft were H-65 helicopters, andabout a quarter were H-60 helicopter