By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest market program in Las Vegas high-end jets are tempting purchasers with their sleek silhouettes, luxurious cabins - and progressively, their usage of alternative fuels.

Fuel producers and jetmakers are keen to display unique kinds of air travel fuel deemed less harmful to the climate, from used cooking oil to the clearly less attractive meat waste.

Business jet operators, like airline companies, have bowed to 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 suppress emissions might make service jets more attractive to environmentally mindful purchasers - specifically corporations facing questions over sustainability from investors or green campaign groups.

The accessibility of less contaminating personal jets could likewise spare the abundant and popular the unfavorable publicity experienced by Britain's Prince Harry and his wife Meghan over a recent private jet trip to southern France.

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

The most current waste-based fuels include "fats, grease and oils that are by-products of the food market," said Bryan Sherbacow, chief industrial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions worldwide, however can release, usually, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has actually safeguarded his occasional use of private jets to guarantee his family's security, and has actually stated that on the uncommon events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his travel plan have included fresh obstacles for a market currently making every effort to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming including the usage of private jets are regrettable when you think about that our industry has delivered fuel performance enhancements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

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

But even an image makeover - with jets sporting stickers like "this airplane flies on renewable fuels" and organisers adding alternative fuel pumps for checking out airplanes - is not likely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some experts remain skeptical that biojetfuels, usually mixed 50-50 with kerosene, will make a substantial influence on public perceptions about luxury travel.

"No amount of jatropha curcas or Brazil-nut fuel can make company jets look eco-friendly," said analyst Richard Aboulafia.

Demand from organization jet operators for renewable fuels now far surpasses supply and their interest could drive future production, Sherbacow stated.

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

Corporate charter business and specialists are likewise seeing more interest from clients who wish to buy carbon credits to offset emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions played a function in a corporate jet utilization study his business recently completed for a Fortune 500 business.

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