Should aircraft hull coverage be written on an agreed value or a stated value basis?

Agreed value is what you want, because it means the carrier pays the full number on your declarations page after a total loss with no argument about depreciation or market conditions. Stated value treats that same number as a ceiling rather than a promise, and lets the carrier pay the lesser of the stated figure or actual market value at the time of loss.

Most general aviation hull policies in the United States are written on an agreed value basis. The discipline that requires is an annual review of the number. If you insure a turboprop for $1.4 million and the market has moved to $2.1 million, you are insured for the smaller figure and you fund the rest yourself.

• Agreed value pays the declarations page number; stated value pays the lesser of that number or market value
• In-motion deductibles commonly run 1 percent to 5 percent of hull value, or $2,500 to $10,000 on piston trainers
• Not-in-motion deductibles, covering hangar rash and wind damage, are often zero
• Reset your insured value every renewal rather than carrying last year's figure forward

What is the difference between a smooth liability limit and a per-passenger sublimit?

A smooth limit is a single combined liability limit payable to any injured party with no internal cap per seat, while a sublimited policy caps what any one passenger can recover no matter how large your total limit looks. A $1,000,000 limit with a $100,000 per-passenger sublimit means a seriously injured passenger recovers $100,000 and you face the rest personally.

Sublimits are common on flight school aircraft, flying clubs and lower value piston hulls because they hold premium down. They are rarely appropriate once you carry paying passengers, employees or customers. Part 135 operators typically need smooth limits of $1,000,000 to $5,000,000 for piston and turboprop work, with $10,000,000 to $50,000,000 common for jets and contract flying.

• Look on your declarations page for the phrases "each passenger" or "sublimit" beside the liability limit
• Charter and corporate contracts frequently require smooth limits and will reject a sublimited certificate
• Moving from a sublimited to a smooth $1,000,000 usually costs far less than owners expect

What is an open pilot warranty, and how do pilots fall outside it?

An open pilot warranty is the minimum pilot qualification your policy accepts without naming the individual, and flying outside it can leave you with no hull or liability coverage for that flight. A typical piston twin warranty specifies a private certificate with an instrument rating, 1,000 total hours, 500 multi-engine hours and 25 hours in make and model, plus a current medical certificate.

Named pilot coverage is the alternative, listing specific people who are often less experienced than the open clause would allow. Most schools and charter operators run both. The failure point is turnover and transition, since a new hire, a mechanic repositioning an aircraft, or an owner stepping from a 182 into a Bonanza can all fall outside the warranty on day one.

• Warranties usually specify total time, time in make and model, ratings and medical currency
• Missing any single element can void hull and liability coverage for that flight
• Add new pilots and new aircraft types before the first flight, not at renewal
• Ferry and maintenance repositioning flights are a frequent gap worth confirming in writing

If a warranty is broken, is your aircraft lender still protected?

Only if the policy carries a breach of warranty endorsement naming the lienholder, which pays the lender's outstanding loan balance even when your own coverage has been voided. Without it, a bank financing an aircraft can end up unsecured after a loss caused by an unqualified pilot or a lapsed inspection.

The endorsement protects the lender, not you. If the carrier pays the loan balance under it, the carrier can then pursue you for what it paid. Most banks require it as a loan condition, alongside loss payee status on the hull and additional insured status on liability, usually at minimal cost.

What covers you when you fly an aircraft you do not own?

Non-owned aircraft liability, often sold as renter's insurance, covers your legal liability and your responsibility for damage to an aircraft you rent, borrow or operate but do not own. A policy on your own aircraft does not automatically follow you into a rental, and the rental operator's policy protects the operator, not you.

Flight instructors need a separate layer. Instructor professional liability responds to claims alleging negligent instruction, an improper endorsement or inadequate supervision, and it follows the instructor rather than any one aircraft. Independent instructors commonly carry $100,000 to $1,000,000 in limits.

• Match your non-owned hull damage limit to the value of the aircraft you rent most often
• Check whether a flying club policy covers members individually or only the club entity
• Compensated or commercial flying is excluded on most private pleasure and business policies

What coverage does a flight school or FBO need beyond hull and liability?

A flight school or fixed base operator needs three additional coverages: hangarkeepers liability, premises general liability, and products and completed operations for any maintenance work performed. Each answers a different kind of claim, and an aircraft policy alone covers none of them.

Hangarkeepers liability covers damage to other people's aircraft while in your care, custody or control, whether stored, towed or in for service. Limits are written per aircraft and per occurrence, and the per aircraft number is what matters when a customer's jet is in your hangar. Premises liability covers ordinary injuries on your property, from a slip on a wet ramp to a fuel spill.

• Set hangarkeepers per aircraft limits against the most valuable aircraft you ever store, commonly $1,000,000 to $5,000,000
• Confirm hangarkeepers applies while your staff tow or taxi a customer aircraft
• Maintenance and avionics work creates completed operations exposure that survives delivery
• Fuel handling and self-serve operations usually need to be disclosed and scheduled

What do war, terrorism and hijacking exclusions actually remove?

Standard aviation policies exclude loss caused by war, hijacking, confiscation, sabotage and terrorism, and the exclusion strips both hull and liability unless you buy the coverage back. Most operators discover this only when a contract, a lender or an international trip forces the question.

The market handles it with write-back endorsements. Liability war risk is commonly restored for a modest additional premium and is frequently required by airport authorities and corporate charter clients. Hull war risk is priced separately and matters most for international work. Watch the territorial limit too, since flying outside the listed region without an extension can leave you uninsured for the whole trip.

What actually moves an aviation insurance premium?

Pilot experience moves aviation premium more than any other factor, followed by aircraft type, hull value and formal recurrent training. Two identical aircraft can differ by a factor of three based purely on who flies them.

Underwriters weigh total time, time in type, instrument currency and recency, and a move from 200 to 500 hours in type often produces a real reduction. Structured recurrent training is the most reliable lever an owner controls, and many carriers will not quote turbine aircraft without it. Hull rates commonly run about 1 percent to 2 percent of insured value for well flown turbine aircraft and 2 percent to 5 percent for training fleets.

• Time in make and model is weighted more heavily than total flight time
• Retractable gear, tailwheel, high performance singles and higher seat counts all raise rates
• Loss history over the past five years shapes pricing more than any single bad year