Had the pleasure of meeting him at 131 in 2017. What a gentleman. Took about 15 minutes to talk with me about the truck VERY sincere and one hell of a driver. Hope he comes back again!
I will forever remember the sound of the rpms going down when he lights up the smoke stacks. It just sounds awesome. Enjoy retirement Bob, you deserve it. Thank you.
Curtis Petit To this day the venerable General Electric J79 is still one of, if not the fastest accelerating gas turbine engine around. Very good response to power/throttle setting changes. Most engines have some lag to pretty sluggish response. Since the J79 is so responsive, the rotating core of the engine changing speed so quickly really torques the truck around!
That chassis isn't twisting, the whole damn truck is rocking over on the suspension because there's about 2000lbs of rapidly accelerating/decelerating mass sitting in it. It was built to be stable and safe at high speeds and to handle nearly 20,000lbs of thrust. The compressor section in that engine takes about 15,000hp to turn at full RPM. There is going to be some equal and opposite reaction translated to the engine casing/mounts/truck chassis. It's no different than any other engine being revved. It absolutely is a part of the act but the engine has everything to do with it. Don't make stupid comments when you don't have a fricken clue about something you obviously know nothing about.
I thought I heard bob was retiring after the 2016 season. I guess I was wrong. And why does the engine have have that weird humming sound before he hits the afterburner?
That info was incorrect from various sources. He was only cutting back some of his travel schedule. Word has it that it was announced he will return to the Night Under Fire in 2018. I would imagine that the humming noise must the climbing rpm for the jet engine. All jet cars sound unique, but that GE J79 is something else.
morphman21 Its just the sound of all the hot exhaust gasses rushing out of the exhaust nozzle. Pretty much all jet exhibition vehicle's use a fixed size nozzle instead of the variable area type. These are meant to be optimal size at full power so less than full power the exhaust stream isn't really accelerated much but as he jockeys the throttle and the engine surges near full power the exhaust increases dramatically. That's what I think you are hearing. At full power and with the afterburner lit, that exhaust gas is beyond supersonic in velocity so its very loud. The GE J79 in this truck is an incredible engine, very well designed and way ahead of anything else when introduced.
Watch event playlist here. ua-cam.com/play/PLQX0YRK8Hi5o5dZPZW0F7ORfXQ-Qnmkf2.html
Been watching this machine for the last 20 years of my life.. never gets old
Had the pleasure of meeting him at 131 in 2017. What a gentleman. Took about 15 minutes to talk with me about the truck VERY sincere and one hell of a driver. Hope he comes back again!
I will forever remember the sound of the rpms going down when he lights up the smoke stacks. It just sounds awesome. Enjoy retirement Bob, you deserve it. Thank you.
Amazing how that J79 makes that truck cab twist like that.
Curtis Petit To this day the venerable General Electric J79 is still one of, if not the fastest accelerating gas turbine engine around. Very good response to power/throttle setting changes. Most engines have some lag to pretty sluggish response. Since the J79 is so responsive, the rotating core of the engine changing speed so quickly really torques the truck around!
The truck was build to twist. It's part of the act. The engine has nothing to do with it.
That chassis isn't twisting, the whole damn truck is rocking over on the suspension because there's about 2000lbs of rapidly accelerating/decelerating mass sitting in it. It was built to be stable and safe at high speeds and to handle nearly 20,000lbs of thrust. The compressor section in that engine takes about 15,000hp to turn at full RPM. There is going to be some equal and opposite reaction translated to the engine casing/mounts/truck chassis. It's no different than any other engine being revved. It absolutely is a part of the act but the engine has everything to do with it. Don't make stupid comments when you don't have a fricken clue about something you obviously know nothing about.
@@mytmousemalibu that semi got those flames on the smoke stakes
@dragracing news I guarantee you there is. It's not solid mounted which is blatantly obvious.
I love this everytime I see it in real life!!!
That is a beast
Indeed!
How do they know its powerplant was a J-79?
Tks for sharing👍👍
You bet! Thank you!
This needs to be in the next mad max movie
No doubt!
Shock wave is the king of the jet trucks
Maybe so, but this is the original jet truck, the one that started it all.
great pass WOW
A great showman!
"THE KING OF QUAKE"
Indeed!
J79
Bg🎉
One fast truck .
Menacing at either end of the track.
THAT THING IS MENACING SHUT OFF , AND TRAILERD.
The sound of engine is really horrifying, I don't know how the truck's cabin can fit driver's HUGE balls of steel.
Who went in 2021?
He ran quicker at NEDway as we have over a 1/4mi shutdown area. Didn't have to worry about stopping.
And absolutely NO Wheelspin! LOLOL
FRIGGIN SEMI FROM HELL.
Right?! LOL
THANKS FOR THAT , HAVING A BAD DAY .
BOB MOTZ , THE CONDUCTOR OF HELL,S SYMPHONY.
You ever see a truck do over 200mph in just a quarter mile?
Well then you *ain't* seen everything...
I thought I heard bob was retiring after the 2016 season. I guess I was wrong. And why does the engine have have that weird humming sound before he hits the afterburner?
That info was incorrect from various sources. He was only cutting back some of his travel schedule. Word has it that it was announced he will return to the Night Under Fire in 2018. I would imagine that the humming noise must the climbing rpm for the jet engine. All jet cars sound unique, but that GE J79 is something else.
morphman21 he was, but they just keep bringing him back
morphman21 Its just the sound of all the hot exhaust gasses rushing out of the exhaust nozzle. Pretty much all jet exhibition vehicle's use a fixed size nozzle instead of the variable area type. These are meant to be optimal size at full power so less than full power the exhaust stream isn't really accelerated much but as he jockeys the throttle and the engine surges near full power the exhaust increases dramatically. That's what I think you are hearing. At full power and with the afterburner lit, that exhaust gas is beyond supersonic in velocity so its very loud. The GE J79 in this truck is an incredible engine, very well designed and way ahead of anything else when introduced.
did bob motz retire from racing I pray not
Yes he sold one of his jet trucks to Kuhnle brothers.
Looks like truck from hell