Hull vs. liability aviation insurance —
what's the difference?

The core distinction

Aviation insurance isn't a single product — it's built from two separate coverage types that protect against fundamentally different risks.

Hull insurance protects your aircraft. If your plane is damaged or destroyed — on the ground, in the air, or anywhere in between — hull coverage pays for repairs or replacement up to the agreed insured value. It doesn't matter who was at fault.

Liability insurance protects you from claims made by others. If you cause an accident that injures passengers, damages another aircraft, or destroys property, liability coverage pays those costs — including your legal defense if you're sued.

One protects your asset. The other protects you from what your asset might do to others. Both matter, and most pilots who own or regularly fly aircraft need some combination of each.

Hull insurance — what it covers

Hull insurance is written on an agreed value basis, meaning you and the insurer agree upfront on what the aircraft is worth. If the aircraft is a total loss, you receive that agreed amount. If it's repairable, the policy covers repair costs up to that value.

Coverage typically extends to all phases of operation — parked, taxiing, and in flight. If you want to reduce your premium, you can narrow coverage to ground-only, which excludes in-flight damage. This can make sense for aircraft in storage or rarely flown, but it's a significant gap for any aircraft in regular use.

What hull covers beyond accidents:

• Weather damage — including hail, which is a real and recurring risk in Kansas and across the Midwest
• Fire and vandalism
• Theft
• Ground handling incidents — prop strikes during towing, hangar rash, damage during maintenance

Liability insurance — what it covers

Liability insurance covers your legal responsibility to others when an accident occurs. It's divided into two main areas:

Passenger liability covers bodily injury or death to passengers aboard your aircraft. This applies whether you're flying friends, family, or paying passengers.

Third-party liability covers injury or property damage to anyone who isn't a passenger — people on the ground, other aircraft on the ramp, buildings, vehicles, infrastructure. If your aircraft causes damage to something or someone outside the plane, third-party liability is what responds.

Liability coverage also includes legal defense costs — attorney fees, expert witnesses, and court costs if a claim results in litigation. This alone can run into six figures in aviation cases, regardless of fault.

How liability limits are structured

Liability policies are typically written in one of two ways.

Split limits separate passenger coverage from third-party coverage, with a sublimit per passenger. A common configuration for a light piston aircraft might be $1,000,000 per occurrence with $100,000 per passenger. If you carry multiple passengers, this structure can create gaps — the per-passenger sublimit may not be enough for a serious injury claim.

Combined Single Limit (CSL) — sometimes called smooth limits — combines everything into one total limit with no per-passenger cap. It costs more, but it gives you more flexibility in how a claim is paid. For pilots who regularly carry passengers, CSL is often the better structure.

What does it actually cost?

Hull insurance

Hull premiums are calculated as a percentage of the aircraft's agreed insured value. For piston aircraft, that typically runs 0.9%–1.3% of hull value per year — though rates can range from 0.4% to over 2% depending on pilot experience, aircraft type, and how and where you fly. A $150,000 aircraft might cost $1,350–$1,950 annually for hull coverage at those rates.

Pilot experience is the biggest variable. A newer pilot with limited hours in type will pay significantly more than an experienced pilot with a clean record in the same aircraft. Building hours, completing recurrent training, and hangaring your aircraft rather than tying it down can all reduce your premium over time.

Deductibles on hull coverage vary by policy and aircraft type. Many standard piston aircraft policies carry low or no deductible — insurers use deductibles primarily on higher-risk aircraft like floatplanes and rotorcraft.

Liability insurance

Liability coverage is priced more on the complexity of the aircraft and how you use it than on the aircraft's market value. For single-engine piston aircraft, liability-only policies typically run $400–$1,200 per year. Turboprops and jets can run $5,000–$25,000 or more depending on coverage limits and operation type.

Why they're sold separately — and why that matters

Selling hull and liability as separate coverages isn't just an insurance industry convention — it's genuinely useful. It lets you calibrate each coverage independently based on your actual risk profile.

Consider two different scenarios:

The right balance is different for everyone. It depends on your aircraft's value, how often you fly, whether you carry passengers, what kind of airspace you operate in, and what you can realistically absorb out of pocket.

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What affects both premiums

Several factors move both hull and liability costs in the same direction:

• Pilot experience — total hours, hours in type, and recency of flight all matter. Hours in the specific make and model often carry more weight than total logbook time.
• Aircraft complexity — high-performance, retractable-gear, and multi-engine aircraft carry higher premiums than simple fixed-gear singles.
• Use type — personal/pleasure flying is cheaper to insure than commercial operations, flight instruction, or charter.
• Geography — operating in areas with severe weather, mountainous terrain, or high traffic airspace increases risk and premium.
• Claims history — prior incidents follow you at renewal. A clean record is one of the most effective ways to keep premiums down over time.

The bottom line

Hull insurance protects what you own. Liability insurance protects you from what you might owe. Most pilots who fly regularly need both — the question is how much of each, and in what configuration.

That's not a question with a universal answer. It depends on your aircraft, your flying, and your financial situation. A broker who specializes in aviation can look at your specific profile and help you find the right balance — not just the cheapest policy.