By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest market program in Las Vegas high-end jets are drawing purchasers with their sleek silhouettes, plush cabins - and progressively, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to display unique kinds of aviation fuel deemed less damaging to the environment, from used cooking oil to the distinctly less attractive meat waste.

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

Their hope is that embracing renewable fuel to curb emissions could make service jets more appealing to environmentally mindful buyers - particularly corporations dealing with concerns over sustainability from shareholders or green project groups.

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

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

The most recent waste-based fuels include "fats, grease and oils that are by-products of the food market," stated Bryan Sherbacow, primary industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

Some of the other 79 airplane on display 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 total annual carbon emissions globally, but can emit, usually, approximately 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually defended his periodic use of personal jets to guarantee his household's security, and has stated that on the unusual events he does not fly commercially he offsets his emissions.

But state events such as the furore over his itinerary have added fresh obstacles for an industry already aiming to validate its contribution to cutting business costs.

"Incidents of flight shaming including making use of personal jets are unfortunate when you consider that our market has delivered fuel effectiveness enhancements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel use will help the market make inroads with corporations and rich purchasers. According to industry information, billionaires just have a 19% company 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 going to airplanes - is unlikely to please all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some experts remain skeptical that biojetfuels, usually blended 50-50 with kerosene, will make a considerable effect on public understandings about luxury travel.

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

Demand from organization 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 broaden production approximately 150 million gallons by 2022.

Corporate charter companies and experts are likewise seeing more interest from consumers who desire to purchase carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions contributed in a business jet utilization study his business just recently finished 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 familiar with the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)