By Allison Lampert

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

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

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

Their hope is that embracing renewable fuel to suppress emissions might make company jets more appealing to environmentally mindful buyers - particularly corporations facing concerns over sustainability from investors or green campaign groups.

The schedule of less polluting personal jets might likewise spare the rich and popular the unfavorable publicity experienced by Britain's Prince Harry and his spouse Meghan over a current personal jet trip to southern France.

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

The newest waste-based fuels include "fats, grease and oils that are byproducts of the food industry," said Bryan Sherbacow, primary commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions globally, but can give off, typically, as much as 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has safeguarded his periodic usage of private jets to guarantee his household's security, and has stated that on the rare celebrations he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his travel plan have included fresh difficulties for an industry already striving to justify its contribution to cutting business expenses.

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

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

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

Environmentalists and some experts stay doubtful that biojetfuels, usually blended 50-50 with kerosene, will make a substantial impact on public perceptions about high-end travel.

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

Demand from business 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 expand production as much as 150 million gallons by 2022.

Corporate charter companies and experts are likewise seeing more interest from clients 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 corporate jet usage study his company just recently completed for a Fortune 500 company.

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