MILAN โ€” The creation of a viable, affordable insurance regime for future space tourists remains an unresolved issue that ultimately could scuttle the space-tourism industry before it has a chance to prove itself, according to industry experts trying to tackle the problem.

Despite the efforts of the U.S. government to craft a legal framework that protects the nascent industry from many liability-related issues, space-tourism companies have yet to persuade insurers that the risks are worth the investment, these officials said. They also questioned whether the governmentโ€™s regulations will withstand legal challenge.

Brian Binnie, a test pilot at Scaled Composites LLC of Mojave, Calif. โ€” he flew one of the two 2004 flights that won the $10 million Ansari X Prize โ€” said insurance premiums for the companyโ€™s SpaceShipOne vehicle have been exorbitant.

In a March 23 address to the 14th International Space Insurance Conference here, Binnie said the technical achievements of SpaceShipOne and the promise of its tourist-carrying successor, the SpaceShipTwo, now in development, have occurred despite continued doubts about whether affordable insurance will be available.

Jonathan Firth, project director at Virgin Galactic, a company formed in Richard Bransonโ€™s Virgin Group to sell tourist flights on SpaceShipTwo starting in 2009, said the limited amount of revenue generated per flight is one reason for insurersโ€™ hesitation.

โ€œWe are starting now to look for insurance coverage,โ€ Firth said. โ€œIf we are successful, we could have 500 passengers in the first year and 50,000 passengers over 10 years. These are volumes that could provide a worthwhile return to insurers, even with relatively low premiums.โ€

The U.S. Federal Aviation Administration (FAA), in February, adopted final rules governing the space tourism industry in the United States, and for U.S. companies operating anywhere.

Stephen Tucker, a senior partner in the law firm Mendes & Mount, said the U.S. policy was written to provide maximum liberty to space tour operators by limiting the possibility of litigation in the event of an accident.

โ€œ[T]he scheme is essentially one that is best termed โ€˜fly at your own risk,’โ€ Tucker said. โ€œPassengers, called space flight participants, will be legally required to waive liability claims. Emphasis is placed on informed consent of crew and passengers.โ€

Under these rules, the tour operators will be responsible for providing up to $10 million in coverage for damages to uninvolved third parties . Damages above that amount will be paid by the U.S. government โ€” a scheme similar to what governs todayโ€™s commercial satellite-launching industry.

But the FAAโ€™s protections may not be enough to attract insurers to the business. Tucker said he is doubtful that โ€œany of this will be effectiveโ€ in preventing lawsuits from the families of multi-millionaire passengers who die in a space-tourism crash.

Sean Gates, legal advisor to the International Union of Aviation Insurers, said even high premiums will not be enough to cover the loss of a very rich passenger. Gates said space-tour operators should set a per-seat limit on insurance coverage.

โ€œThe FAA is trying to get survivors to waive their rights,โ€ Tucker said. โ€œI am not sure how effective that will be in the case of a Bill Gates [Microsoftโ€™s chairman] who gets killed in a flight. I think you can expect lawsuits.โ€

Firth agreed that crafting passenger contracts to limit future claims will not be easy.

โ€œThe FAA has been supportive, but informed consent is going to be quite a big issue,โ€ Firth said of Virgin Galacticโ€™s future business. โ€œSome [passengers or their families] might say they didnโ€™t know what they were getting into.โ€

Firth said Virgin Galactic learned first-hand of the complexities involved when several employees signed liability waivers to ride on a centrifuge operated by Qinetiq in Farnborough, England. โ€œEven the informed consent to go on the centrifuge was quite involved,โ€ Firth said.

Binnie said that despite the high insurance premiums faced so far by space tourism operators โ€” he said one company paid more in insurance premiums than it spent on developing its vehicle โ€” space tourism is probably unstoppable.

โ€œItโ€™s an experience that will sell itself,โ€ Binnie said of the four minutes of weightlessness that will be offered each passenger in SpaceShipTwo. โ€œI have no doubt about it: Itโ€™s coming to your area sooner than you think.โ€