By Allison Lampert

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

Fuel producers and jetmakers are keen to display unique forms of aviation fuel deemed less harmful to the environment, from used cooking oil to the distinctly less glamorous meat waste.

Business jet operators, like airline companies, have actually acquiesced ecological pressure on aviation and dedicated to halving carbon emissions by 2050 compared to 2005.

Their hope is that adopting sustainable fuel to curb emissions could make organization jets more appealing to ecologically mindful purchasers - specifically corporations facing questions over sustainability from investors or green project groups.

The availability of less contaminating personal jets might likewise spare the abundant and famous the unfavorable promotion experienced by Britain's Prince Harry and his wife Meghan over a current private jet trip to southern France.

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

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

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets represent less than 0.1% of total annual carbon emissions globally, but can produce, on average, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has safeguarded his occasional usage of personal jets to guarantee his household's safety, and has actually stated that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his have added fresh obstacles for an industry already striving to justify its contribution to cutting corporate expenses.

"Incidents of flight shaming including using personal jets are unfortunate when you think about that our market has actually provided 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 market make inroads with corporations and wealthy purchasers. According to market data, billionaires just have a 19% organization jet ownership rate.

But even an image remodeling - with jets sporting sticker labels like "this aircraft flies on sustainable fuels" and organisers including alternative fuel pumps for going to aircrafts - is unlikely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some experts stay hesitant that biojetfuels, usually combined 50-50 with kerosene, will make a substantial influence on public perceptions about luxury travel.

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

Demand from business jet operators for sustainable fuels now far exceeds 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 up to 150 million gallons by 2022.

Corporate charter business and consultants are also seeing more interest from customers who wish 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 corporate jet usage research study his company recently completed for a Fortune 500 business.

"At the end of the day, I believe that rate, expense per hour, variety, speed and efficiency, that's still the (sales) driver. But I believe people are ending up being more familiar with the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)