Slammin’ Sammy Miller and the Vanishing Point Rocket

This Wasn’t Just Another Jet Car

Jet dragsters were already familiar exhibition machinery, but Vanishing Point used hydrogen-peroxide rocket power. That changed the nature of the problem considerably.

Highly concentrated hydrogen peroxide was forced through a catalyst pack, where it decomposed almost instantly into extremely hot steam and oxygen. The rapidly expanding gases blasted through the rocket nozzle and produced thrust.

No pistons, crankshaft, transmission or driveshaft were required. There was no waiting for an engine to build rpm or a clutch to decide how much power the rear tires could tolerate.

Open the valves and the thrust arrived.

Right now.

The Rear Tires Were Mostly Passengers

Conventional drag racing spends enormous effort solving traction. Too much torque reaches the slicks, they spin, and all that expensive horsepower gets converted into smoke and disappointment.

A rocket car had very little interest in that argument. The thrust acted directly on the vehicle, so the tires did not have to transmit the rocket’s power to the pavement.

One of drag racing’s oldest mechanical limits had just been removed from the discussion. The wheels mostly existed to keep Vanishing Point from becoming a very fast sled.

Then Sammy Went Under Four Seconds

By the late 1970s, Miller had turned Vanishing Point into one of the most outrageous exhibition machines in drag racing. In 1979, he ran 3.94 seconds in Florida.

That was the first recorded sub-four-second quarter-mile by a drag vehicle.

Three point nine four.

At a time when conventional fuel cars were still working through the five-second range, Miller had skipped an entire neighborhood. There was very little left to prove about whether rocket propulsion could accelerate a drag car.

Sammy kept improving it anyway.

Going Fast Was the Easy Part

Rocket power made acceleration brutally simple. Stopping the thing afterward required considerably more respect.

Vanishing Point could collect tremendous speed in only a few seconds. Miller could shut the rocket down immediately, but the car did not suddenly lose interest in traveling several hundred feet per second.

There was no engine braking and no drivetrain helping absorb speed—just brakes, parachutes and whatever racetrack remained in front of him.

Miller later described stopping as one of his biggest concerns, which seems like a healthy instinct for a fellow whose quarter-mile elapsed time began with a three. The acceleration lasted seconds; running out of shutdown area could ruin the rest of the afternoon.

NHRA Eventually Had Enough Rocket Cars

Rocket machines delivered spectacular performance, but concentrated hydrogen peroxide and a growing collection of accidents made sanctioning bodies increasingly uncomfortable. By the end of the 1970s, NHRA had largely shut rocket cars out.

That could have ended Miller’s act.

Instead, it changed the shipping address.

Europe still wanted rocket cars, and Santa Pod Raceway in England was particularly interested in seeing what Vanishing Point could do. Sammy went where the track still allowed him to open the valves.

Santa Pod Learned to Watch Quickly

European spectators knew what a quick dragster looked like. Vanishing Point gave them less time to enjoy the comparison.

The car would stage, Miller would prepare the rocket, and then the thrust arrived. There was no long exhaust roar building through a launch and no gear changes announcing progress down the strip.

Vanishing Point simply disappeared.

The name had become less of a nickname and more of an operating description. Anybody near the starting line saw the car leave; anybody farther down the track had better already be looking in the right direction.

Three Point Five Eight

In 1984 at Santa Pod, Miller produced the number that defined Vanishing Point.

3.58 seconds.

For the quarter-mile.

Three and a half seconds from standing still to the finish line. It remains one of those drag-racing numbers that sounds wrong even after somebody explains why it is right.

Conventional Top Fuel machinery would continue advancing for decades through better tires, clutches, chassis, aerodynamics and several thousand additional horsepower. Miller had already demonstrated what happened when a racer stepped outside that entire development path.

The rocket pushed.

Vanishing Point went.

The Launch Was Worse Than the Elapsed Time Sounds

A quarter-mile number does not fully explain what Miller was experiencing. Vanishing Point could reach 60 mph in a fraction of a second, with 100 following almost immediately.

The initial acceleration could subject him to forces well into double-digit Gs. This was not the familiar pressure of a quick street car pushing the driver into the seat.

This was the seat trying to file for permanent residency inside the driver.

A few seconds later the parachutes came out and the forces reversed direction. Calling Miller a passenger would be ridiculous, but calling him a driver barely covered the job description.

He was operating several thousand pounds of thrust with wheels attached for convenience.

Vanishing Point Wasn’t One Permanent Car

Miller used different bodies as the program developed. Vega, Mustang and Trans Am shapes appeared while the important machinery underneath continued evolving.

The body was almost advertising. The rocket system was the business end.

Miller and his collaborators refined the peroxide plumbing, catalyst packs and rocket engines while thrust climbed into the thousands of pounds. Equivalent horsepower estimates reached numbers that sounded impressive but were becoming less useful because a rocket did not make power the way a piston engine did.

It made thrust, and Vanishing Point converted that directly into leaving.

Then Sammy Found Other Places for Rockets

One rocket drag car did not exhaust Miller’s curiosity. He built the Oxygen rocket dragster and went after ice-speed records as well.

On Lake George in 1981, Oxygen reportedly reached nearly 248 mph in only 500 feet, covering the distance in about 1.6 seconds—on ice, because a dry dragstrip had evidently become too predictable.

Miller also became involved with rocket motorcycles and continued running exhibition machinery on both sides of the Atlantic. Once hydrogen peroxide became the answer, he kept finding new questions.

Top Fuel Chose the Long Route

Conventional drag racing kept advancing through more nitromethane, better slicks, better clutches, stronger chassis and improved aerodynamics. Eventually computers helped manage a clutch that had become nearly as complicated as the engine feeding it.

Decades of development pushed Top Fuel into performance territory that would have sounded absurd when Miller first showed up. That achievement required solving one mechanical problem after another while keeping the basic piston-engine dragster intact.

Miller had taken a different route years earlier. He did not perfect the whole chain between combustion chamber and rear tire.

He stepped around it.

Vanishing Point Was Named Correctly

There have been more sophisticated drag-racing machines and plenty of developments that changed competition more permanently. Few made a quarter-mile disappear quite like Sammy Miller’s rocket car.

When conventional fuel cars were still chasing five-second elapsed times, Vanishing Point went 3.94. Miller later cut that to 3.58, a number so far outside normal drag-racing expectations that the sanctioning bodies eventually decided rocket cars had gone far enough.

Europe disagreed for a while, so Miller kept running where somebody was still willing to open the gate.

Stage the car, open the valves and disappear. Three and a half seconds later, the engineering problem had changed completely.

Now he had to stop it.