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By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest market program in Las Vegas high-end jets are drawing buyers with their smooth silhouettes, luxurious cabins - and significantly, their usage of alternative fuels.

Fuel producers and jetmakers are keen to display unique types of air travel fuel considered less harmful to the environment, from utilized cooking oil to the definitely less attractive meat waste.

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

Their hope is that adopting renewable fuel to suppress emissions might make business jets more appealing to environmentally conscious purchasers - particularly corporations dealing with questions over sustainability from shareholders or green campaign groups.

The availability of less polluting private jets might likewise spare the abundant and famous the negative publicity experienced by Britain's Prince Harry and his partner Meghan over a current private jet journey to southern France.

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

The most recent waste-based fuels include "fats, grease and oils that are by-products of the food industry," said Bryan Sherbacow, primary business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

A few of the other 79 airplane on screen are expected to be powered by 150,000 gallons of other sustainable fuel mixes anticipated to be pumped at the show.

FLIGHT SHAMING

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

Prince Harry has actually defended his occasional usage of personal jets to guarantee his household's safety, and has said that on the unusual occasions he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his schedule have actually included fresh for a market already making every effort to validate its contribution to cutting corporate costs.

"Incidents of flight shaming involving making use of personal jets are regrettable when you consider that our market has provided fuel effectiveness improvements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

But even an image makeover - with jets sporting stickers like "this airplane flies on sustainable fuels" and organisers adding alternative fuel pumps for visiting airplanes - is unlikely to satisfy all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some experts stay skeptical that biojetfuels, generally combined 50-50 with kerosene, will make a considerable effect on public perceptions about high-end travel.

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

Demand from organization jet operators for eco-friendly fuels now far goes beyond 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 as much as 150 million gallons by 2022.

Corporate charter companies and specialists are likewise seeing more interest from consumers who wish to buy carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions contributed in a business jet usage research study his company just recently finished for a Fortune 500 business.

"At the end of the day, I think that cost, expense per hour, range, speed and efficiency, that's still the (sales) motorist. But I believe individuals are becoming more knowledgeable about the sustainability of operations and how it impacts the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)