By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the most significant industry show in Las Vegas high-end jets are tempting buyers with their streamlined silhouettes, plush cabins - and progressively, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display novel types of aviation fuel deemed less damaging to the climate, from utilized cooking oil to the noticeably less attractive meat waste.

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

Their hope is that adopting renewable fuel to curb emissions might make company jets more appealing to ecologically mindful purchasers - especially corporations dealing with questions over sustainability from shareholders or green campaign groups.

The availability of less polluting personal jets could likewise spare the rich and famous the negative promotion experienced by Britain's Prince Harry and his better half Meghan over a current personal jet journey to southern France.

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

The latest waste-based fuels consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, chief business officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

A few of the other 79 aircraft on display screen are anticipated to be powered by 150,000 gallons of other sustainable fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of total annual carbon emissions globally, but can emit, usually, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually safeguarded his occasional use of private jets to guarantee his household's safety, and has said that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his travel plan have actually included fresh difficulties for an industry currently making every effort to justify its contribution to cutting corporate expenses.

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

Bombardier believes increased sustainable fuel use will help 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 remodeling - with jets sporting stickers like "this airplane flies on eco-friendly fuels" and organisers adding 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, generally combined 50-50 with kerosene, will make a significant influence on public understandings about luxury travel.

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

Demand from service jet operators for eco-friendly fuels now far exceeds 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 business and specialists are likewise seeing more interest from clients who desire to purchase carbon credits to offset 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 completed for a Fortune 500 company.

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