By Allison Lampert

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

Fuel manufacturers and jetmakers are eager to showcase unique kinds of air travel fuel deemed less harmful to the climate, from used cooking oil to the definitely less attractive meat waste.

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

Their hope is that embracing eco-friendly fuel to suppress emissions might make company jets more appealing to ecologically conscious purchasers - especially corporations facing questions over sustainability from investors or green campaign groups.

The schedule of less contaminating personal jets might likewise spare the abundant and famous the unfavorable promotion experienced by Britain's Prince Harry and his spouse Meghan over a current 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 most recent waste-based fuels consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, chief industrial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste used 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 eco-friendly fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions internationally, however can release, usually, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has safeguarded his occasional usage of personal jets to guarantee his household's security, and has actually said that on the rare events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his itinerary have actually included fresh challenges for a market currently striving to validate its contribution to cutting corporate costs.

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

increased sustainable fuel usage will help the industry make inroads with corporations and rich purchasers. According to market information, billionaires just have a 19% service jet ownership rate.

But even an image transformation - with jets sporting stickers like "this airplane flies on eco-friendly fuels" and organisers including alternative fuel pumps for checking out airplanes - is not likely to satisfy all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some analysts stay skeptical that biojetfuels, usually blended 50-50 with kerosene, will make a substantial effect on public perceptions about luxury travel.

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

Demand from company jet operators for sustainable fuels now far goes beyond supply and their interest could drive future production, Sherbacow stated.

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

Corporate charter companies and consultants are likewise seeing more interest from customers who wish to purchase 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 utilization research study his business just recently completed for a Fortune 500 business.

"At the end of the day, I think that price, expense per hour, range, speed and performance, that's still the (sales) chauffeur. But I think individuals are ending up being more conscious of the sustainability of operations and how it affects the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)