@AndrewTubbiolo You might call the cart a hybrid since it also has an electric motor. The motor is used for reverse and for moving the cart forward at up to 3mph without starting the turbine. During normal operation though, the output shaft of the power turbine is connected through a gearbox and chain drive to power the rear wheels directly. The turbine does also spin a 12v car alternator just to keep the batteries charged.
That's absolutely awesome! A great fabrication job all the way round especially on the air intakes. I'm gonna bet that you upgraded that old steering box to the rack and pinion type?
Glad you liked it. I haven't yet found a golf course that would let me run it, but just out of consideration I'd keep to paved cart paths since I leave a streak of dead grass any time I drive it through the turf.
I did not take weight into consideration. I figured that with gearing as it is, the engine might have power to spare but then I could simply back off the throttle to keep the power turbine from overspeeding. This has not been an issue because with the throttle pedal floored I'm only getting 97 percent gas generator speed. A throttle cable adjustment would get me 10 more horsepower, but it was hairy enough at 75 mph so I haven't yet felt the need to make that adjustment.
I don't normally dignify naysayers with a response, but I have the time so why not. I wanted a top speed of 80mph which equals 117 feet per second or 7,020 feet per minute. The rated shaft output speed of the turbine is 3000 rpm. The tires are 18 inches in diameter which means they roll 56.5 inches or 4.7 feet per revolution. So, at 80 mph, the tires have to be turning 1494 rpm, close enough to 1500. I used a 2 : 1 reduction between the output shaft and the rear axle to achieve this speed.
Getting the power to the ground using a T62 would be harder than it was for me using the JFS-100 because the JFS has a free power turbine whereas the T62 is a single spool engine. For your application you'd either need some type of hydrostatic transmission or maybe an automatic transmission could be adapted using a high stall torque converter to allow enough slippage between the engine and the load so as not to drag down the engine speed when engaging the drive. PM me if you have questions.
lol youre trying to put and then this guy drives by...
kittypoo500 1 week ago
@kittypoo500 putt*
kittypoo500 1 week ago
Is this working off the jet's thrust or is it powered by the shaft? If the latter, is there a clutch then?
mummyjohn 1 week ago
@mummyjohn It is shaft powered. Yes, there is a clutch. I used a Logan Clutch industrial clutch engaged by compressed air.
JetPropellerLabs 1 hour ago in playlist Uploaded videos
This is the silliest and useless thing ever, and that´s why is the one of the coolest thing ever.
DIZAZZO 1 month ago
I simply love people that can come up with creative ideas like this!
Fun to watch! Keep it up!
Skyisnotalimit 1 month ago
So is this an electric hybrid? The turbine drives a generator? Or is there a mechanical link from the turbine shaft to the wheel gearbox?
AndrewTubbiolo 4 months ago
@AndrewTubbiolo You might call the cart a hybrid since it also has an electric motor. The motor is used for reverse and for moving the cart forward at up to 3mph without starting the turbine. During normal operation though, the output shaft of the power turbine is connected through a gearbox and chain drive to power the rear wheels directly. The turbine does also spin a 12v car alternator just to keep the batteries charged.
JetPropellerLabs 53 minutes ago in playlist Uploaded videos
dear santa......
xXYALE70Xx 6 months ago 2
That's absolutely awesome! A great fabrication job all the way round especially on the air intakes. I'm gonna bet that you upgraded that old steering box to the rack and pinion type?
xerocytesteve 1 year ago
Quit breaking the sound barrier, lol :P
Blue67impala 1 year ago
Do the golf courses limit you to the cart path or are you allowed in the grass. Ha Ha. Absolutely awesome man. You've got some major kahonies.
xupd48n1h 2 years ago
Glad you liked it. I haven't yet found a golf course that would let me run it, but just out of consideration I'd keep to paved cart paths since I leave a streak of dead grass any time I drive it through the turf.
JetPropellerLabs 1 year ago
did you take your weight/cart weight into consideration fort hat calculation o: so close to target speed!
datafishy 2 years ago
I did not take weight into consideration. I figured that with gearing as it is, the engine might have power to spare but then I could simply back off the throttle to keep the power turbine from overspeeding. This has not been an issue because with the throttle pedal floored I'm only getting 97 percent gas generator speed. A throttle cable adjustment would get me 10 more horsepower, but it was hairy enough at 75 mph so I haven't yet felt the need to make that adjustment.
JetPropellerLabs 1 year ago
"Top design speed is 80 mph, but I've only had it up to 75 so far."
Yea, there's a 'design speed' son... LOL Give us a break. Where did you run the calculations for that? hahahaha
marcuskeeler 2 years ago
I don't normally dignify naysayers with a response, but I have the time so why not. I wanted a top speed of 80mph which equals 117 feet per second or 7,020 feet per minute. The rated shaft output speed of the turbine is 3000 rpm. The tires are 18 inches in diameter which means they roll 56.5 inches or 4.7 feet per revolution. So, at 80 mph, the tires have to be turning 1494 rpm, close enough to 1500. I used a 2 : 1 reduction between the output shaft and the rear axle to achieve this speed.
JetPropellerLabs 2 years ago
haha! you have joined my hero list.
orangesherbet0 2 years ago
Thanks! Glad you liked the cart.
JetPropellerLabs 2 years ago
@JetPropellerLabs I have a T62 type app and would like to know your opinion on the best configuration for power to ground.
rtsuspensions 2 years ago
Getting the power to the ground using a T62 would be harder than it was for me using the JFS-100 because the JFS has a free power turbine whereas the T62 is a single spool engine. For your application you'd either need some type of hydrostatic transmission or maybe an automatic transmission could be adapted using a high stall torque converter to allow enough slippage between the engine and the load so as not to drag down the engine speed when engaging the drive. PM me if you have questions.
JetPropellerLabs 2 years ago
I am currently working on a turbo shaft but i am having a hard time figuring out how you connect it to the drive train please help if you can.
campfreak2007 2 years ago
Send me a private message with more details about your project and I'd be glad to give you some pointers.
JetPropellerLabs 2 years ago
bad mofo
highwaycop63 2 years ago
TANK.
rumblinjungl 2 years ago
Nut Sack!
accuratemike 3 years ago
I resemble that comment! :)
JetPropellerLabs 3 years ago
Passing the Gator at warp speed is too cool! And, you have to love the sound! Nice work.
accuratemike 3 years ago
Holy SHIT! That's just cool!
Impractacle, bit cool!
gornoman 3 years ago