Go Back  R/C Tech Forums > General Forums > Electric Off-Road
Evolution of RC car design. Where is it headed? > Evolution of RC car design. Where is it headed?

Evolution of RC car design. Where is it headed?

Reply

Old 10-02-2013, 12:12 PM
  #31  
Tech Master
iTrader: (34)
 
1967Typhoon's Avatar
 
Join Date: Aug 2010
Location: Grand Rapids, Mi
Posts: 1,197
Trader Rating: 34 (100%+)
Default

Originally Posted by fredswain View Post
If you think run times are short or that radios suffer from interference, you haven't been doing this long enough to remember when that was actually true.
Or he is a Spektrum user.

I kid of course.
1967Typhoon is offline  
Reply With Quote
Old 10-02-2013, 12:31 PM
  #32  
Super Moderator
iTrader: (19)
 
Join Date: Jan 2003
Location: New Jersey
Posts: 8,479
Trader Rating: 19 (100%+)
Default

Batteries, motors, and ESC's have advanced much quicker than chassis tech. Even tires have advanced more than chassis tech (more compounds, patterns, closed cell foams, etc)

Chassis development has to happen. Even if it's minor. The additional traction from the new tires combined with the additional power of the new electronics is pushing the existing platforms to it's limits.

If you want to see how far the motors, batteries, and esc has come, take the electronics out of either of the world champs cars and throw them in the same car 2 generations back. You will see how much we evolved in that short time. Then take those electronics and slap them in a B2/B3 or XX. That improvement is even more pronounced.

Can old stuff still win? Absolutely. But competition is not limited to the track. Companies are always striving to be the best at what they do and make their products the best there is to offer. Eventually someone will do something that forces everyone to step up their game. As consumers, we should be thankful that this does happen or we would be still racing the Frog.
Bob Barry is offline  
Reply With Quote
Old 10-02-2013, 12:33 PM
  #33  
Tech Master
 
XRated SCT's Avatar
 
Join Date: Feb 2013
Location: SanDiego
Posts: 1,065
Default

My runtimes are good for racing and practice...but what about if I want to go bash for 20-30min straight with higher speeds and cool temps?
XRated SCT is offline  
Reply With Quote
Old 10-02-2013, 01:09 PM
  #34  
Tech Elite
iTrader: (152)
 
scottgir's Avatar
 
Join Date: May 2010
Location: Manchester, CT
Posts: 2,202
Trader Rating: 152 (100%+)
Default

Originally Posted by fredswain View Post
If you think run times are short or that radios suffer from interference, you haven't been doing this long enough to remember when that was actually true.
Love this response. Anytime someone at the track says "oh man, my car is glitching" (not very often but still). All I think about is 25 years ago having to yell out "Who's on Channel 68? Come on man, turn off your radio, I'm on Channel 68!"
scottgir is offline  
Reply With Quote
Old 10-02-2013, 01:11 PM
  #35  
Tech Adept
 
F1Yankee's Avatar
 
Join Date: Aug 2012
Location: Boston, MA
Posts: 206
Default

Originally Posted by XRated SCT View Post
My runtimes are good for racing and practice...but what about if I want to go bash for 20-30min straight with higher speeds and cool temps?
you can't bash for 20 minutes on 1 lipo? really?
F1Yankee is offline  
Reply With Quote
Old 10-02-2013, 01:13 PM
  #36  
Tech Adept
 
F1Yankee's Avatar
 
Join Date: Aug 2012
Location: Boston, MA
Posts: 206
Default

Originally Posted by scottgir View Post
Love this response. Anytime someone at the track says "oh man, my car is glitching" (not very often but still). All I think about is 25 years ago having to yell out "Who's on Channel 68? Come on man, turn off your radio, I'm on Channel 68!"
"who's on futaba? come on man, turn off your radio, i'm on spektrum!"
F1Yankee is offline  
Reply With Quote
Old 10-02-2013, 01:40 PM
  #37  
Tech Master
 
XRated SCT's Avatar
 
Join Date: Feb 2013
Location: SanDiego
Posts: 1,065
Default

Originally Posted by F1Yankee View Post
you can't bash for 20 minutes on 1 lipo? really?
If I were to take out my tekno sct and gear it for speeds that I like bashing on...no, 20min. Is possible with the right lipo but temp wise it's not going to happen, even with my 15tpinion that I race with I highly doubt 20min will be in the safe temp range
XRated SCT is offline  
Reply With Quote
Old 10-02-2013, 01:48 PM
  #38  
Tech Addict
 
USMC STONE's Avatar
 
Join Date: May 2012
Posts: 583
Default

Originally Posted by F1Yankee View Post
you can't bash for 20 minutes on 1 lipo? really?
I don't think many can go 20, at least not the OFF ROAD vehicles we race unless your getting a 8000mah+ battery. My XB9E on a 6500mah last max 15 under race conditions. That's Max Amps or SMC. My Tekno SCT410 with 7200 SMC is lucky to get 12-15 under race conditions. So no I don't think too many people could bash for 20 minutes on 1 battery. On road I have no idea.
USMC STONE is offline  
Reply With Quote
Old 10-02-2013, 01:50 PM
  #39  
dtr
Tech Master
 
dtr's Avatar
 
Join Date: May 2011
Location: budapest, hungary
Posts: 1,525
Default

Originally Posted by fredswain View Post
If you think run times are short or that radios suffer from interference, you haven't been doing this long enough to remember when that was actually true.
On the radio front I have played with 27MHz AM radios so I agree that todays 2.4G systems are way better than having to compare channels and swap crystals. However I am more concerned with deliberately overtaking the original signal. A plane can easily be stolen this way, and surely some kids will find it amusing to make cars collide or run away.

Regarding batteries I just envy nitro racers having 30 (and sometimes even longer) mains with just a few seconds per 7-10mins to refill and having much lighter cars. I would be very happy with the same energy density.
dtr is offline  
Reply With Quote
Old 10-02-2013, 01:52 PM
  #40  
Suspended
 
Join Date: Oct 2013
Posts: 34
Default

Originally Posted by fredswain View Post
If you think run times are short or that radios suffer from interference, you haven't been doing this long enough to remember when that was actually true.
+1
anybody griping about runtime needs to go back to the nicad era when we were lucky to get through a 4 minute race without dumping
OG199 is offline  
Reply With Quote
Old 10-02-2013, 02:04 PM
  #41  
Suspended
 
Join Date: Oct 2013
Posts: 34
Default

Originally Posted by Dave H View Post
One possible area that could be revisited is multi link suspension. That's a major full size evolution over the past few decades, especially in the rear suspension. Seems doable, links are already used, has been done in the past, original Losi, some others. Takes more sophisticated design, but perhaps not a big challenge to manufacture.
what the losi engineers and team drivers found way back when was, while brilliant in concept that the link system was only of advantage on rougher tracks. the smoother the track, it was almost counter productive. it resulted in them adopting the same H-arm system that had been used by others in the past and now into the future, and that's not even accounting for the even smoother tracks we're all typically running today.
OG199 is offline  
Reply With Quote
Old 10-02-2013, 02:04 PM
  #42  
Tech Regular
iTrader: (4)
 
firefoxussr's Avatar
 
Join Date: Oct 2013
Location: Naples FL
Posts: 343
Trader Rating: 4 (100%+)
Default

Originally Posted by madweazl View Post
... It adds to the complexity of the vehicle design and worse in my mind, a speed control that is capable of "syncing" said motors. Then you have to factor in additional weight.
I'd like to see a twin rear/mid motor setup driving each rear wheel and have twin ESCs that uses a common computer to change the speed of the inner wheel on turns. Like McLaren does with their 'brake-steer' on their current road cars and past F1 cars (before it was banned for being a huge advantage).

htppizyy mp4-12c.over-blog.com/pages/Brake_steer_and_McLaren_airbrake-4755899.html

EDIT Sorry- thought this was the on-road section.

Last edited by firefoxussr; 10-02-2013 at 02:05 PM. Reason: noob
firefoxussr is offline  
Reply With Quote
Old 10-02-2013, 02:42 PM
  #43  
Tech Champion
iTrader: (67)
 
ThePanda's Avatar
 
Join Date: Jul 2013
Location: Michigan
Posts: 7,151
Trader Rating: 67 (100%+)
Default

Originally Posted by firefoxussr View Post
I'd like to see a twin rear/mid motor setup driving each rear wheel and have twin ESCs that uses a common computer to change the speed of the inner wheel on turns. Like McLaren does with their 'brake-steer' on their current road cars and past F1 cars (before it was banned for being a huge advantage).

htppizyy mp4-12c.over-blog.com/pages/Brake_steer_and_McLaren_airbrake-4755899.html

EDIT Sorry- thought this was the on-road section.
You would need two separate gearboxes though.

What about hydraulic brakes for rc cars? (Like on some 5th scales) Cool idea I think. But probably overkill for these little guys.
ThePanda is offline  
Reply With Quote
Old 10-02-2013, 03:15 PM
  #44  
No9
Tech Fanatic
iTrader: (12)
 
No9's Avatar
 
Join Date: Jun 2011
Location: The track
Posts: 905
Trader Rating: 12 (100%+)
Default

1.Electrics will become smaller.
2.Better materials.
3.Nitro will die and you will be able to buy a nitro sound simulator for your ep8 buggy.
4. On board telemetry may become available.??
No9 is offline  
Reply With Quote
Old 10-02-2013, 03:27 PM
  #45  
Suspended
 
Join Date: Oct 2013
Posts: 34
Default

Originally Posted by No9 View Post
1.Electrics will become smaller.
2.Better materials.
3.Nitro will die and you will be able to buy a nitro sound simulator for your ep8 buggy.
4. On board telemetry may become available.??
1. http://www.kyosho.com/eng/products/r...roup_id=100003
2. better than what?
3. people still run nitro?
4. http://www.spektrumrc.com/Technology/Telemetry.aspx
OG199 is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service