By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry program in Las Vegas high-end jets are drawing purchasers with their streamlined shapes, luxurious cabins - and significantly, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to showcase unique types of aviation fuel considered less damaging to the climate, from used cooking oil to the clearly less glamorous meat waste.

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

Their hope is that adopting sustainable fuel to suppress emissions could make business jets more appealing to environmentally mindful buyers - particularly corporations dealing with questions over sustainability from investors or green campaign groups.

The availability of less polluting private jets might also spare the abundant and popular the negative promotion experienced by Britain's Prince Harry and his other half 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 latest waste-based fuels include "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 item is inedible."

Some of the other 79 aircraft on display are anticipated to be powered by 150,000 gallons of other eco-friendly fuel blends expected to be pumped at the program.

FLIGHT SHAMING

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

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

But planemakers state events such as the furore over his itinerary have actually included fresh obstacles for an industry currently making every effort to justify its contribution to cutting corporate costs.

"Incidents of flight shaming involving using personal jets are unfortunate when you think about that our industry has actually provided fuel performance improvements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

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

Environmentalists and some analysts remain hesitant that biojetfuels, usually blended 50-50 with kerosene, will make a substantial effect on public perceptions about high-end travel.

"No amount of jatropha curcas or Brazil-nut fuel can make business jets look eco-friendly," stated air travel analyst Richard Aboulafia.

Demand from organization jet operators for eco-friendly fuels now far surpasses supply and their interest could drive future production, Sherbacow said.

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

Corporate charter business and consultants are likewise seeing more interest from consumers 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 function in a business jet utilization research study his company recently completed for a Fortune 500 business.

"At the end of the day, I think that rate, cost per hour, range, speed and performance, that's still the (sales) motorist. 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)