Quantcast

GAMI responds comprehensively to criticisms surrounding its unleaded aviation fuel

Travelers are taking extreme measures and using hacks to avoid airline baggage fees
Pigeons Cause Chaos on Delta Flight
United Airlines’ Uniforms Get A Facelift—And A Political Filter
United Continues to Face Catering Chaos at San Francisco
Passenger Stows Away on Delta Flight from New York to Paris
Wizz Air becomes first airline to operate P&W-powered Airbus A321XLR jet
Hawaiian Airlines’ new ‘no show’ policy may make travel more expensive
BLIMP-SE OF THE FUTURE Luxury zeppelins of the future from ‘flying bum’ world’s largest aircraft to Google billionaire’s ‘impossible’ airship
Swiss Startup SmartFlyer Develops Hybrid-Electric Trainer
San Francisco-based entrepreneur takes a trip on India's worst-rated airline, his reaction will surprise you
First-Time Flyer at 81: A Grandmother's Memorable Journey
Ryanair forecasts fare rebound as consumers recover from interest-rate hit
Global Airlines Launches Inaugural Flight, Aiming to Revive 'Golden Age of Travel'
Winning routes: American Airlines adds more than 22,000 seats for football fans following release of 2025–2026 pro schedule
Boeing scores Middle East plane deal during Trump visit
Air travel will be ‘worse’ this summer, lawmakers warn — as FAA gives infuriating update on system fixes, staffing issues
Qatar Airways places record $96 billion Boeing order amid Trump visit
United Airlines CEO Reassures Passengers About Newark Airport Safety
American Testing Tech to Help Passengers Make Connecting Flights
British Airways to use AI in efforts to improve operations
American Airlines Tests New Tech to Help Passengers With Tight Connections During Summer Rush
Flight Diverted After Pregnant Woman on Board Goes into Labor and Delivers Her Baby: Report
United Airlines CEO Scott Kirby says "this is the most optimistic I've been in my entire career about finally getting the FAA fixed"
U.S. Transportation Secretary Sean P. Duffy Unveils Plan to Build Brand New, State-of-the-Art Air Traffic Control System
Passenger rushing for next flight can't believe what woman next to her does
Why fuel price crash won’t make flying cheaper
Kristi Noem says travelers without Real ID will still be able to fly after deadline
Frontier Airlines Announces New Routes Launching This Summer, Connecting Baltimore With Chicago O’Hare and Trenton, N.J. With Myrtle Beach, S.C.
Airlines in North America prioritize investments in cyber, AI
The evolution of the airline uniform — a cross check
GAMI responds comprehensively to criticisms surrounding its unleaded aviation fuel
Policy
Webp gehpas32xjipe75msj720gh7ylnv
JSX Plane | Official Website

Last week's blog provided an update on the progress of replacing 100LL with unleaded high-octane aviation fuels. In the comments section, a reader using the title BestGlideSpeed raised numerous questions and criticisms regarding General Aviation Modifications Inc.'s (GAMI's) G100UL. Many points have been echoed by others, while some were new. GAMI founder and Chief Engineer George Braly addressed these in a detailed response.

Braly intended to post his reply in the comment section but agreed to let AVweb run it as this week's Insider. Here is his unedited response:

"I’m not certain if this is a news story, or if Russ just enjoys throwing rocks at a hornets' nests to see all of the commenters get riled up. At this point no news is simply, well, no news."

Get the Newsletter
Sign-up to receive weekly round up of news from Sky Industry News
By submitting, you agree to our Privacy Policy and Terms of Service. By providing your phone number you are opting in and consenting to receive recurring SMS/MMS messages, including automated texts, to that number from our short code. Msg & data rates may apply. Reply HELP for help, STOP to end. SMS opt-in will not be sold, rented, or shared.

"As an engineer developing new products for market, I understand that a typical, successful development project always includes the following:

1. Unrealistic demands of what the new product must be able to do.

Not in the case of G100UL. The original design criteria set out in writing to the FAA in spring 2011 were fully met and even exceeded.

2. A never-ending system of hurry up and wait.

Yes. There has been a lot of FAA-imposed 'waiting' and not much 'hurry up.'

3. Unrealistic demands that after everyone sat on their hands burning up the clock, you must now save everyone else’s bacon and get the ball across the finish line in record time.

No such urgency from the FAA has yet come to light.

4. Individuals who have no understanding of science, industry, or use case are setting project priorities.

There has been some of that from the FAA at times but mostly impediments designed by proponents to slow down or stop G100UL avgas project completely.

5. Self-interested individuals ignore realities and proclaim 'just go with my favorite answer now' because unresolved concerns fall outside their limited priorities.

A lot recently concerning coverage for rotorcraft—2% of aircraft fleet.

6. The list goes on ad nauseam—and that's when things go well."

"Things went 'well' from 2012 to 2015 then stagnated for four years before regressing for six months until July 2020 when Washington AIR-1 assigned a new team enabling project completion within 24 months."

"A government project given ten years is only four years along with two pathways: PAFI/EAGLE and STC pathway—the latter succeeding with every spark ignition engine approved for G100UL Avgas."

"The taxpayers spent nearly $250 million over 20 years on failed UL AvGas/PAFI/EAGLE programs yielding nothing tangible."

"Russ's observations align precisely with Paul Bertorelli’s from 18 months ago."

"Statements claiming drop-in replacements aren't possible contradict FAA approval defining G100UL Avgas as such."

"There are no compromises with G100UL Avgas—it enhances existing high-powered radial engines’ performance back to wartime ratings without anyone left out except major producers obstructing development."

"Contrary claims about rotary wing approvals are incorrect; Robinson Helicopter confirmed G100UL passed rigorous tests submitted to facilitate early addition to Approved Model List."

"The STC approval signifies safety equivalence or superiority over 100LL per FAA findings—not merely permission without mandate implications involving manufacturers or insurers.”

"GAMI asserts openness regarding examination contrary to assertions suggesting secrecy; Lycoming and Continental engineers verified operational parity between G100UL Avgas and 100LL through direct testing.”

"Inaccurate claims about insurers not indemnifying G100UL are refuted by distributors securing product liability insurance akin to 100LL without premium increases.”

"GAMI denies exclusivity accusations citing comprehensive specification availability online alongside distributor/OEM engagements ensuring transparency.”

Braly's detailed rebuttal invites further discourse among stakeholders regarding light aviation's future.

Organizations Included in this History
More News

Emirates is celebrating The Championships, Wimbledon 2025, with special offerings for passengers and tennis fans.

Jun 26, 2025

The Pratt & Whitney PW1100G engine, part of the P&W GTF series used on the A320neo, has been updated to the GTF Advantage (GTF-A).

Jun 25, 2025

Air France is set to halt its winter Airbus A350 flights between Paris Charles de Gaulle Airport and Denver International Airport.

Jun 25, 2025

Delta Air Lines, a major global airline, operates nearly 1,000 aircraft from nine hub airports across the United States.

Jun 25, 2025

Record-breaking heat waves across the Southwestern United States last summer posed an unusual safety challenge for Southwest Airlines.

Jun 25, 2025

On June 13, a traveler returning from a business trip on New Zealand's East Coast experienced a delay on their journey home.

Jun 25, 2025