sickest r/c car

[quickestreflex]

;) i have a crazy idea i would love to strap a amt pegasus r/c jet turbine to a 1/10 rc car , this turbine puts out 19lbs of thrust. it would push a 30+lbs r/c jet to over 100mph so you can only imagine what it would do to a 4lb r/c car , god im crazy

[rc10gtisthebest]

sorry to burst your bubble but the vehicle must be wheel powered. Or you could go like me and design a car where the turbine turns the wheels. That's what I did on my design. I estimated it to go about 169mph. But I don't have the finances to do it.

Oh Well..
-Todd

[EddieWeeks]

An AMT Pegasus puts out over 30 lbs of thrust and burns ~16 oz min and has flown
my friends jets to 237 mph.

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html

[ElectricThunder]

An AMT Pegasus puts out over 30 lbs of thrust and burns ~16 oz min and has flown
my friends jets to 237 mph.

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html
WOO! That's a mean lookin project ya got there. I like the body, is that some type of lotus?? :confused:

[EddieWeeks]

I don't really know what kind of car that is... The invoice says its
a Porsche GT1, but looked all over the Internet for GT1 and could not
find that car... Does any body else know ?

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html

[Rotary Rocket]

That is a 1/5 scale FG car (made in Germany). The shell is a Poarshe GT1.

It is missing the large rear wing, they raced the real car in LeMans, and the GT series in USA, Japan, and Europe.

[Chris LaPanse]

911 GT1:
http://audiworld.free.fr/porsche/911gt1_2.jpg
Yours:
http://bellsouthpwp.net/w/e/weeks1/10.jpg

They do look pretty similar, except for the wing.

[EddieWeeks]

Yea.. the wing is still in the box.. Thanks for the info... I never
would have guessed 911.

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html

[Zr2]

That set up.... Is your friend using the Jet engine of means of forced air for the turbo effect? I'm not really understanding how everything is going to work? If indeed the Turbine is being used for forced induction for the turbo is the air not hot? Because if it is the turbo effect is vertually lost.

-Matt

[Mike Keeney]

Wow, that is sure a cool looking car. I couldn't figure out what it was at first. Sorta looks like a fishing lure if you look at it backwards. :p

Mike

[ElectricThunder]

911 GT1:
http://audiworld.free.fr/porsche/911gt1_2.jpg
Yours:
http://bellsouthpwp.net/w/e/weeks1/10.jpg

They do look pretty similar, except for the wing.

mmmmm....sexeh... :eek:

[NotWalkinBlind]

I hate it when an R/C body isn't properly proportioned to scale.

Look at the size of the cockpit area on the scale GT-1 (compared to the size of the rest of the car) and compare it to the cockpit area on the R/C... the R/C GT-1 body looks like it was meant to have a back seat. Whoever drew that up and made the forms ought to be fired.

However, that's not pertinent to all the good design and excellent machining you've done, Eddie... incredibly beautiful work.

[NotWalkinBlind]

Do you plan to drive that screamer with a stick radio? :eek: :eek: :eek:

Just asking because of that last pic in that link.

[EddieWeeks]

No.. I don't know how that got there. I just got a 3PK and I am
was superised how many mixes, ABS and buttons that thing has..

I have programed 9ZAP, JR 10s, Profi 4000s 12 chanels ect.. but had no idea
the top of the line car Radio was so advanced...

Thanks.. NotWalkinBlind.. Tell you the truth.. A lot of that work was done on
my band saw.. And you did not see all the scrap parts I made..hahah
but I am getting better with my new Lathe....

Eddie Weeks
http://www.corpcomp.com/weeks1/

[Toyotatogo]

dang eddie thats sick ...... :eek: now I know i'm going to be there to check that thing out man please get it working asap ... lol I really would like to see that thing goooo !!!! :cool:

[astainback]

That is a sweet car there Eddie. Man, you are making me want a car bad now!!!!

I am going to have to go out and get one.

[NotWalkinBlind]

Do you think all (or most) people who run an IC engine under a body will forego the cooling hole in the windshield in order to have better aerodynamics... being relatively concerned about cooling with such a brief runtime?

This is probably a stupid question that's been answered before somewhere in this forum... just curious.

[EddieWeeks]

NotWalkingBlind: When I ran that car with a G23 it ran fine for a long
time with all the holes block.. not cutout.. When I put the turbine in it
I will open up a few of those holes, but there will be a fairly large hole
in the top of the car for the exhaust to blow up..

Thanks astainback.. If you really want a car I can build it.. only takes money...

Toyotatogo: I will update you as soon as I finish something on it..
I am making the housing for the turbo out of carbon steel pipe right now..


Thanks for all the support.

[bufferoo]

Eddie,

Quick question for you. Just how much "thrust" would you expect from the intake of the turbine? I know that the vehicle can't be powered directly from the exhaust blast but surely the intake has got to help pull the car even a little bit.

I'm sure I read (a long time ago- popular mechanics maybe) that this was one of the things that helped the sr71 blackbird move so fast. Some of the thrust was due to the engines suction.

Just wondering.

Bufferoo

[EddieWeeks]

The air going into the intake is only going around 200 mph and I don't
plan on putting a large air scoop in the body of the car... This type of engine
will get all the air it needs no matter how much I screw it up.. (no ducts ect)
This was learned with many different turbine instillations in model airplanes..

The supersonic flow around the moveable intake on the SR-71 is much more
complex then a simple centrifugal compressor.

I was running a AMT 450 (45 lbs thrust turbine) on a test stand and
squirted the intake with the water hose.. Not on low but full blast and the turbine
keep running no problem... And this is at ~100,000 RPMs

Maybe it will suck its self down to the road for better traction.. hahah

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html

[ElectricThunder]

That's a totally killer project eddie. I wouldn't be surprised if you hit 150 or higher, especially if that thing can turn the turbine at over 60,000 RPMs. :eek:

[thefasttrack]

The air going into the intake is only going around 200
http://bellsouthpwp.net/w/e/weeks1/car.html
yah only 200 mph :eek:

[EddieWeeks]

yep .. 200 mph.. I can show you..

From the Jetcat web site the engine has a mass flow of 0.21 kg/sec
and with the density of dry air at 1.2 kg/m^3 you can figure the volume at
0.17 m^2 / sec... The intake is only like 1.8 inches across so it would have
to go 105 m/sec or ~200 mph... Its very simple

The real question is what is the velocity of that air comming out the back
with the same size hole at 700 C ? and how fast will it turn my turbocharger.. ?

[EddieWeeks]

update... Turbine is in the mail and will be here next week..

http://jetcatusa.sitewavesonline.net/p80.html

Its a P80 with 19 lbs of thrust... It weights ~3 lbs and starts its self
at the flip of a switch on the transmitter..

I have been told that Tail pipe vel is around 700 mph this gives a max
rpm of 200,000 at the turbocharger.. Now that ain't going to happen
because at 50,000 rpms the car will be doing 160 mph with the 5.5:1
gear ratio its at now.. I am sure thats not the best ratio but it will
be interesting to see if it needs to be higher or lower.. I have enough gears
for both directions... Can't wait.

Eddie Weeks
http://bellsouthpwp.net/w/e/weeks1/car.html

[_HUMAN_CLAY_]

I always had the idea of putting a .18 engine on each wheel............no gears, just mounting the wheel right on the shaft. MWHA HA HA HA HA HA

[savageP3]

y not put a .27, .28 on each wheel?

[DaFF]

You'll need one clutch and one gear box for each and some sort of a system to synchronize each engine speed. Don't forget that if you want to turn, you'll need as well something that will make your inside turn engine running slower than your external engine i.e. differential action. Not to mention that if one of the engine screwed-up, you'll have piece of cars flying everywhere LoL

To be honest, it is clearly impossible to do this at this stage.

*********************************************

Although I've been dreaming at a 4 brushless inside wheel setup.


This could be highly possible !


Electric motor do not need clutch and they have the ability to push a wheel from 0 to 100 000 rpm ( for a tiny BL motor ) with a nearly constant torque. Very wide operating range is key in this system, because it means no need of gearbox...

I would think a Mamba motor - very small 150/200W range 1/18 car scale motor - could be installed into each wheel of a say 1/10 scale car and if there is a company that can make a chip to control and synch each bl motor that would be the most killer app of any r/c car I know. ( crossbreed it with a 2 way Nomadio radio and I'll setup the firework :cool: )

I think that a bl sensored system could feel the position of each stator ( thus each wheel ) and could work as a "tactyl" system that can operate each wheel independantly, receiving information and reacting or counter-reacting by applying independant voltage to each wheel.

One could setup this system for anti-slip and or ABS system, along with all sort of diff function replicating all the sort of differential we know ( from one way diff, to ball diff, to thorsen type, to spool ) for any wheel.

I would think the technology is advanced enough to create a setup like this, only would it take a team of crazy electronic and physic experimented genius with lots of money and time to spare.

In a different application, I have been dealing with designing a truck ( 1:1 truck ) for the oil and gas industry with hydraulic motor on each trailer wheel. This truck had a 6x6 gas engine powering all wheels + an hydraulic pump driving the 4 trailer hydraulic motors wheels ( so, it was a 10x10 truck !). Inside wheels hydraulic motor are widely used in the caterpillar type truck.

I think as well I have seen a 1:1 electric car with inside wheel motor...

On a side note, everyone can see that more and more electronics are invading our r/c car, like the shifting system of the Revo.

Time will tell, but this BL inside wheel setup is in my opinion the future of r/c car. Mind you, not the close future, but says the next 10 year future.

Anyway, I think it is a way out of the topic :D sorry 'bout that Steve, I got carried away...

DFF

[_HUMAN_CLAY_]

right......................

[CENthasizer]

eddie is that your plane? the rig? which one are you in the films? I think hands down you have shown the most innovative project... i will put bets on you... but watch out i am running a stock CEN tr4 with a .16.... you may need to buy nos to keep up with me:)

[EddieWeeks]

yea.. I may have to shoot NOS into the front of my turbine just to keep up
with you .. I wonder what that will do.. ? This turbine car is a high risk project.. It may just not work
or it may just not be fast.. I will find out.

Yes.. that is my Rig, I am the guy hand launching it and grabing it out of the air.
I have flow it myself a few times, but I had trouble finding a guy to get close enough
to it to hand launch it. They usually got scared and screwed all up.

http://www.corpcomp.com/weeks1/

http://www.corpcomp.com/weeks1/Movies/Rig2Small.WMV (5mb)
http://www.corpcomp.com/weeks1/Movies/Rig2.WMV (23mb)

[crank throw wei]

Eddie,can I ask what your life situation is? How old are you,what you do for a living,if you still live at home,etc.? Just wondering.Those are some bad ass toys,which most folks only dream about.BTW,you car has winner written all over it. :cool:

[Gemini12602]

does this mean we should see vids of the test runs of this car??? I hope I hope!

[EddieWeeks]

Yea.. I live at home... my home.. Everything on my web page I designed
and built then sold. My hobbies just started to pay for them selfs.

My plan is to video everything.. Good, bad fires ect...
If the car goes 50 mph I will say it does 50 mph..
If the car goes 100 mph I will say it does 100 mph..
If the car goes 140 mph I will say it does 100 mph.. hahah

If it catches fire and melts the body.. you will see it..

If it creates shock waves as it goes pass. I will say 100 mph.... hahah

The engine will be here soon.. As soon as it comes in I will take a few pics
of it in the car and update the web site..

The key is I am going to have a good time.

[CENthasizer]

one question i have is how did you feel when the first rig crashed? I dont even own it or know u and i felt really BAD! such craftsmanship put into it.... man it sounds like i am kissing butt....

How much did that project cost? the rig?
and by using a turbine in your car what is it your hoping to achieve? Am i right in saying its going to be used as a turbo or supercharger?

[NotWalkinBlind]

Eddie, do you still plan on using the GT1 body if everything fits up under it?

No matter what body you use, all I can say is... be careful how you roll on the power... I can see that thing doing a wheelie backflip during testing if you're not careful to let it get up to speed slowly so downforce on top of the body takes effect before really turning it loose.

I like your idea re: "if the car goes 140 mph I will say it does 100 mph." :D

[EddieWeeks]

A lot of the hot air from the turbine will be going around the turbo.
I can't really put a turbo big enough to handel all the volume so I used
a smaller one that is less efficient. Because of that, I don't think
it will have the acceleration you are thinking of.. I am just shooting for top end..
The turbine itself takes 5 sec to get to full power.

I am more worried about what will happen when I am at idel and
the turbo is not moving. A lot of hot air will be blowing around that thing
and everything is going to get hot.. We will see..

Eddie

[NotWalkinBlind]

Ddo you still plan on using the GT1 body?

[EddieWeeks]

Yep I will use it...
Evey will fit under the GT1 body no problem.. I need to decide where
to cut the air intake for the turbine.

[jordan29]

wow thats an awesome project!
my money is on you. amazing job! :D

[Chris LaPanse]

my money is on you or the 1/4 funny car (with the v-8). That is an awesome project :eek: . Can't wait to see some videos :D

[jordan29]

its amazing what you guys are doing! we really need vids!

[Mike Keeney]

Eddie,

I watched your vid of Rig 2 and my jaw just hit the ground. I couldn't believe what I was seeing, but there's no denying what I saw. You are an absolute genius. No if's, and's or but's about it.

You have accomplished something that the government has spent billions and billions of dollars to get right. I suspect your design could be scaled up and made suitable for human occupancy for less than 500 million.

Have you seen the Moller SkyCar? Moller Website (http://www.moller.com/). They've been stuck on stability for years. From the video it looks like they're finally making some progress. It's a privately funded project and they have had their up's and down's.

I hope you bring your plane to Irwindale. Perhaps you could even do an exhibition flight for the crowd. :D

You are the Master!

Mike

[EddieWeeks]

Thanks Mike... Comming from you that means a lot... Anyone who can build a V8
is a Genius in my book... I also think it can be scaled up to full size and work fine.
The rotors can be inside the wings and a large 1200 lb thust turbofan can make
the electric power.... I think it would work but I don't know anyone who would
pay for it.. hahah..

What's latest on the V8... I am still waiting for my turbine to show up..

Eddie Weeks
http://www.corpcomp.com/weeks1/

[Mike Keeney]

Eddie, Eddie, Eddie, While I appreciate your compliment, what I'm doing pales in comparison to what you've already done. I mean, let's face it, there hasn't been an Earth shattering internal combustion invention in the last hundred years. Everything is still basically a derivative of the same thing.

You on the other hand have accomplished something that has eluded the best aeronautical engineers for decades. Mr. Sikorsky would have done cartwheels if you showed him this video twenty or thirty years ago. The Russians abandoned their VTOL project many years ago. Even the Osprey took billions of development dollars, and it is still fraught with problems.

Let me put it another way. When I saw your Rig 2 video, I said "Oh my gawd, will you look at that." When I saw R2 transition from vertical to forward flight, I said "Holy S**T, Look At That!" When I saw R2 transition back into vertical flight from forward flight, and then move backward and forward, left & right, and up and down, under absolute control, I said "GEEZUS H. CHRISTMAS, I CAN'T BELIEVE WHAT MY EYES ARE SEEING! LOOK AT THAT, LOOK AT THAT, LOOK AT THAT!!!!

When people look at the video of the blown V8, they say, "Wow, that's cool."

I am fortunate enough to have moments of cleverness, but you my friend, are the true genius.

Mike

[DaFF]

^^^^^^^^^^^^^^^^^^
Old fart love season :D :D :D


You guys are too cute !!!

Anyway, we are all dying to see what both of you will do at the ring, I personaly can't wait to see the art work you'll take to this speed challenge...

Keep up the good work

DFF

[crank throw wei]

Hows the crank development coming along Mike?

[Mike Keeney]

Hi D,

I've been swamped at work and haven't had a chance to do anything related to the car.

I'm trying to get our website back together after a hacker got in and deleted everything. All I have to do is learn Dreamweaver, Flash, OScommerce, and get everything up and running smoothly on my server by the end of the day. :rolleyes:

I will pick up a copy of that book though. Thank you for sending me all of that info.

Cheers,
Mike

[NotWalkinBlind]

Mike, do you have to cut a hole in the body for the turbine's air intake? Does it have to be like a ram intake? I was figuring the turbine would get its air from the air space between the body and the ground and might even give you some downforce.

If it does have to be like a ram intake, it would seem like the best place for it would be directly in front of the turbine intake... as if the hole were made by a bullet shot toward the front from the intake. If you did that, would it also be necessary or beneficial to have an aluminum tube running to (and just through) the hole in the body?

[EddieWeeks]

Mike is building the Bad a$$ V8, I have the turbine car..

I just got the turbine in Friday and it fits no problem.. I will have to move the
stearing servo but that it... I will cut one or two small holes in the top of
the body and the rest of the air will come from the below the body..

I am not too worried about it.. Updated pics tonight..

Eddie

[NotWalkinBlind]

Sorry 'bout the mixup. Do you think you should do anything to keep the turbine from sucking up grit off the track from underneath the car, or do turbines just blow stuff through without damaging themselves?

If you were concerned about damage, maybe you could run a tube straight out through the front of the body... with a piece of fine screen wire over the end of it.

[EddieWeeks]

I am not too worried about fod right now...

New Pics here

http://bellsouthpwp.net/w/e/weeks1/car.html

Eddie