Two people can lease the same aircraft and end up in completely different legal situations. One arrangement gives you a flying machine and nothing else. The other hands you a fully staffed operation, crew included. The difference between a wet lease and a dry lease sounds simple on paper. In practice, it’s one of the most consequential decisions you’ll make in private aviation, and getting it wrong can expose you to federal violations you never saw coming.
The Core Distinction: Who Flies the Plane
A dry lease transfers the aircraft to you, the lessee, without a crew. You take on full operational control. That means your pilots, your maintenance oversight, and crucially, your FAA responsibility. You’re essentially operating as an air carrier in the eyes of regulators, which means you need either a Part 91 flight department or the infrastructure to manage one legally.
A wet lease includes the crew. The lessor retains operational control, which is a specific legal term under FAA regulations. The lessor’s pilots operate under the lessor’s certificate, their maintenance programs, and their liability umbrella. You’re getting transportation, not an aircraft.
That distinction, operational control, is everything in aviation law. The FAA defines it as the authority over initiating, conducting, and terminating a flight. Whoever holds operational control holds regulatory responsibility. Mess up that line and you’re looking at potential violations under FAR Part 119, which governs air carrier certification requirements.
The Gray Area That Catches People Off Guard
Here’s where sophisticated clients get tripped up. A dry lease that comes with a “crew recommendation” or a lessor who happens to also supply pilots through a separate management agreement sounds convenient. It can also blur exactly who holds operational control.
Regulators don’t care how the paperwork is structured. They look at what’s actually happening. If the lessor is still directing the crew, managing the dispatch, and making the go/no-go decisions, that may function as a charter operation regardless of what the lease agreement says. Operating a de facto charter without the appropriate certificate is a serious federal matter, not a technicality you can unwind after the fact.
The FAA calls these arrangements sham dry leases. They’ve pursued enforcement action against both lessors and lessees involved in them. The lessee’s defense that they “just wanted an aircraft” carries very little weight when the operational reality tells a different story.
How the Two Arrangements Compare
| Factor | Dry Lease | Wet Lease |
|---|---|---|
| Crew provided | No | Yes |
| Operational control | Lessee | Lessor |
| FAA certificate required | Yes, by lessee | Lessor holds certificate |
| Maintenance responsibility | Lessee | Lessor |
| Insurance complexity | Higher for lessee | Lower for lessee |
The table above simplifies the picture for clarity. Real-world arrangements come with many variations. Some wet leases include fuel. Some include maintenance but not insurance. A ACMI lease (Aircraft, Crew, Maintenance, and Insurance) is actually a specific category of wet lease common in commercial aviation that’s finding its way into larger business aviation transactions. Knowing exactly what’s included in your arrangement from day one prevents expensive surprises.
Insurance: The Piece Most People Underestimate
Dry lessees often discover the insurance implications late in the process. When you take operational control of an aircraft, you need aviation liability coverage that reflects that role. Hull coverage for the aircraft itself is separate. Neither is cheap, and neither is optional.
Under a wet lease, the lessor typically carries the insurance. Your exposure as a lessee is narrower, though not zero. Reviewing what the lessor’s policy actually covers, and what it specifically excludes for lessees, should happen before you sign, not after your first flight.
A few things your insurance review should address:
- Named insured status: Are you explicitly listed on the lessor’s policy or just an unnamed third party?
- Waiver of subrogation: Does the policy prevent the insurer from coming after you if there’s a claim?
- Passenger liability limits: Verify the per-occurrence limits are appropriate for the individuals on board.
- Operational territory: International flights can trigger coverage gaps if the policy has geographic restrictions.
Who Actually Uses Each Structure
Dry leases suit established flight departments. If a corporation already has Part 91 operations, qualified pilots on staff, and a maintenance tracking system in place, leasing an aircraft without a crew makes sense. You control costs, scheduling, and the overall operation. Large family offices and Fortune 500 flight departments work this way regularly.
Wet leases fit buyers who want access to a specific aircraft without the operational overhead. A company expanding into a new region might wet lease a Bombardier Global 6500 for a year rather than adding an aircraft and crew to their existing department. The lessor handles the complexity. You handle the passengers.
For high-net-worth individuals without an existing flight department, a dry lease is almost never the right answer. The regulatory burden is significant. The liability is real. Charter flights and fractional programs exist precisely to give individuals access to private aviation without taking on the operational role that a dry lease demands.
Before You Sign Anything
Aviation attorneys who specialize in FAR Part 91 and Part 135 compliance are worth every dollar here. The lease structure needs to match the operational reality, and the language in these agreements carries regulatory weight. A well-drafted dry lease clearly establishes independent operational control by the lessee. A well-drafted wet lease clearly defines who is directing the crew and under whose certificate they’re operating.
If a lessor gets vague when you ask direct questions about operational control, that’s the signal to slow down. The arrangement should be clear enough to explain to an FAA inspector in under a minute. If it isn’t, it probably doesn’t belong in your hands.
The difference between a wet lease and a dry lease isn’t just administrative. It determines your legal standing, your insurance exposure, and your regulatory risk profile. Getting the structure right means you can focus on using the aircraft rather than defending how you obtained it.