By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world’s biggest industry program in Las Vegas high-end jets are tempting purchasers with their smooth silhouettes, plush cabins - and progressively, their use of alternative fuels.

Fuel producers and jetmakers are eager to showcase novel kinds of aviation fuel considered less damaging to the environment, from utilized cooking oil to the noticeably less glamorous meat waste.

Business jet operators, like airlines, have acquiesced environmental pressure on aviation and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that adopting sustainable fuel to curb emissions could make business jets more appealing to ecologically conscious purchasers - specifically corporations dealing with questions over sustainability from shareholders or green campaign groups.

The accessibility of less contaminating private jets could also spare the rich and popular the negative promotion experienced by Britain’s Prince Harry and his wife Meghan over a recent personal jet trip to southern France.

Five Gulfstream jets on display in Las Vegas are using California-produced fuel from inedible beef tallow.

The most current waste-based fuels consist of “fats, grease and oils that are byproducts of the food industry,” said Bryan Sherbacow, primary commercial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

“All of our product is inedible.”

Some of the other 79 airplane on screen are expected to be powered by 150,000 gallons of other renewable fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall yearly carbon emissions worldwide, but can give off, typically, up to 20 times more per traveler mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has actually defended his occasional usage of private jets to ensure his household’s security, and has said that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his itinerary have added fresh difficulties for a market currently making every effort to justify its contribution to cutting business costs.

“Incidents of flight shaming including using personal jets are regrettable when you think about that our industry has delivered fuel efficiency improvements of 40% over the previous 40 years,” said Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel usage will assist the industry make inroads with corporations and wealthy buyers. According to industry information, billionaires just have a 19% service jet ownership rate.

But even an image transformation - with jets sporting sticker labels like “this airplane flies on sustainable fuels” and organisers adding alternative fuel pumps for visiting airplanes - is unlikely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some experts stay doubtful that biojetfuels, generally combined 50-50 with kerosene, will make a significant effect on public perceptions about luxury travel.

“No quantity of Jatropha or Brazil-nut fuel can make organization jets look eco-friendly,” said aviation expert Richard Aboulafia.

Demand from service jet operators for sustainable fuels now far exceeds supply and their interest might drive future production, Sherbacow said.

World Energy, which produces 40 million gallons of biofuel at its California plant, might broaden production approximately 150 million gallons by 2022.

Corporate charter companies and experts are likewise seeing more interest from clients who desire to purchase carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions played a function in a corporate jet usage study his business just recently finished for a Fortune 500 business.

“At the end of the day, I think that rate, cost per hour, range, speed and efficiency, that’s still the (sales) chauffeur. But I believe people are becoming more conscious of the sustainability of operations and how it impacts the planet.” (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)