By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world’s biggest market show in Las Vegas high-end jets are drawing buyers with their streamlined silhouettes, plush cabins - and increasingly, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to showcase novel kinds of aviation fuel deemed less hazardous to the climate, from utilized cooking oil to the distinctly less attractive meat waste.

Business jet operators, like airlines, have acquiesced environmental pressure on air travel and devoted to halving carbon emissions by 2050 compared with 2005.

Their hope is that adopting renewable fuel to curb emissions could make organization jets more appealing to ecologically conscious purchasers - especially corporations dealing with questions over sustainability from shareholders or green project groups.

The accessibility of less contaminating personal jets might also spare the rich and well-known the unfavorable promotion experienced by Britain’s Prince Harry and his partner Meghan over a recent personal jet journey to southern France.

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

The current waste-based fuels consist of “fats, grease and oils that are by-products of the food market,” stated Bryan Sherbacow, chief business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

“All of our item is inedible.”

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

FLIGHT SHAMING

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

Prince Harry has safeguarded his periodic usage of personal jets to ensure his family’s security, and has actually said that on the uncommon occasions he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his itinerary have added fresh obstacles for a market already aiming to validate its contribution to cutting business expenses.

“Incidents of flight shaming involving using private jets are unfortunate when you consider that our industry has provided fuel efficiency enhancements of 40% over the previous 40 years,” said Bombardier Aviation President David Coleal.

Bombardier thinks increased sustainable fuel use will help the market make inroads with corporations and wealthy purchasers. According to industry data, billionaires only have a 19% business jet ownership rate.

But even an image remodeling - with jets sporting stickers like “this aircraft flies on eco-friendly fuels” and organisers including alternative fuel pumps for visiting airplanes - is unlikely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain doubtful that biojetfuels, normally mixed 50-50 with kerosene, will make a significant impact on public understandings about high-end travel.

“No quantity of Jatropha or Brazil-nut fuel can make service jets look eco-friendly,” stated air travel analyst Richard Aboulafia.

Demand from business 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, could expand production up to 150 million gallons by 2022.

Corporate charter companies and experts are also seeing more interest from customers who desire to purchase carbon credits to offset emissions from their flights.

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

“At the end of the day, I believe that cost, cost per hour, variety, speed and performance, that’s still the (sales) driver. But I think people are ending up being more mindful of the sustainability of operations and how it impacts the planet.” (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)