By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market show in Las Vegas high-end jets are tempting buyers with their smooth shapes, luxurious cabins - and progressively, their usage of alternative fuels.

Fuel manufacturers and jetmakers are keen to display novel types of air travel fuel considered less harmful to the climate, from utilized cooking oil to the clearly less glamorous meat waste.

Business jet operators, like airline companies, have actually bowed to environmental pressure on aviation and devoted to halving carbon emissions by 2050 compared with 2005.

Their hope is that adopting renewable fuel to suppress emissions might make service jets more attractive to environmentally mindful buyers - especially corporations dealing with questions over sustainability from investors or green campaign groups.

The accessibility of less contaminating private jets might likewise spare the abundant and well-known the unfavorable promotion experienced by Britain's Prince Harry and his other half Meghan over a current personal jet trip to southern France.

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

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

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions internationally, but can emit, typically, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter company Victor.

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

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

"Incidents of flight shaming involving the use of private jets are regrettable when you think about that our industry has actually delivered fuel efficiency enhancements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel usage 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 remodeling - with jets sporting sticker labels like "this airplane flies on eco-friendly fuels" and organisers adding alternative fuel pumps for going to airplanes - is unlikely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some experts stay hesitant that biojetfuels, normally blended 50-50 with kerosene, will make a significant impact on public perceptions about luxury travel.

"No quantity of jatropha curcas or Brazil-nut fuel can make company jets look eco-friendly," stated aviation expert Richard Aboulafia.

Demand from service 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 up to 150 million gallons by 2022.

Corporate charter companies and consultants are likewise seeing more interest from customers 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 played a role in a business jet utilization research study his business recently finished for a Fortune 500 company.

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