Fastest speed over land (stock)

[HafCoJoe]

Disclaimer: I have heard there was another forum with a similar idea, but I want a new fresh forum and am hoping this suits you guys

I have seen races and other awesome challenges, but I have a real world challenge for you guys!

---

Fastest speed on ground

Here's some inspiration

I am holding a contest to see who can achieve the fastest speed over land on Kerbin!

This means that your entry must not leave the ground from the point you begin your run - No picking up speed in air and landing.

Here are the three lanes of entry!

• Fastest speed on runway (vehicle cannot leave the runway even for braking)
  

1. 634 m/s (Rhomphaia)
   
2. -
   
3. -
   
4. -
   

• Fastest speed (not on runway)
  

1. 400.6 m/s (Bobnova)
   
2. -
   
3. -
   
4. -
   

• Fastest speed without engines (No jet engines, mainsails, Xenon, RCS, or other means of movement other than wings and wheels - intakes ok as long as no engine!)
  

1. 80.7 m/s (Sirine)
   
2. -
   
3. -
   
4. -
   

---

VEHICLES FOR ALL ENTRIES MUST HAVE:

• wheels
  
• At least 1 Kerbin (external seats are obviously allowed. Probe cores allowed for operation)
  
• Ability to stop (I want the cars to be somewhat feasible)
  
• NO PART CLIPPING VIA ALT+F12!
  

Not many restrictions eh!

FOR ENTRY

You need:

• A picture of your vehicle in the SPH/VAB
  
• A picture of your vehicle at the start
  
• A picture of your vehicle at its max speed (or a pic of your flight report)
  
• NAME OF CATEGORY ENTERED!
  

Good luck!

Edited November 18, 2013 by Avera9eJoe
Updates

[Sirine]

Entry for: Fastest speed without engines

Max speed: 80.7m/s (Ability to stop: yes, with broken tires).

Javascript is disabled. View full album

Download here. Race Car K2

Edited November 11, 2013 by Sirine
craft file included!!!

[HafCoJoe]

Sweet! thats faster than my Kobra went. I'll take your word!

[Bobnova]

Not sure if leaving the runway to stop counts or not, categorize as you see fit. It can stop though!

Step1: T, full throttle, spacebar.

Step2: wait for burnout.

Step3: pull up, dump speed.

Step4: parachutes.

Step5: party.

Javascript is disabled. View full album

400.6m/s

[Rhomphaia]

There is room for a command seat on my STOL testbed challenge entry, so I will go for fastest speed on runway.

Javascript is disabled. View full album

634m/s

[Guest links123]

Fastest speed on runway is better option.

[Kasuha]

There is already "fastest speed on runway" challenge and applications were reaching 650 m/s including braking within the runway.

I'm not sure whether "fastest speed on runway" in this case includes stopping before the end of runway or if you can just screenshot your speed at the end of runway and stop later.

Edited November 11, 2013 by Kasuha

[HafCoJoe]

No leaving the runway meaning you need to break on the runway sorry D:

[HafCoJoe]

I can't enter because I sorta made this challenge but, Here's how fast I went without any engines (not on runway of course)

175 m/s (is says liftoff because I used seperatrons to blast off my lander can

[Carl]

I'm curious any stability tips for this one? Got myself a vehicle, but despite perfect symmetry it loves to veer wildly and then flip on me.

[gag09]

Can parts be clipping within other parts as long as we didn't use ALT-F12 to get them there?

[HafCoJoe]

I'm curious any stability tips for this one? Got myself a vehicle, but despite perfect symmetry it loves to veer wildly and then flip on me.

Wide wheels, and put the center of lift behind the center of mass. Make the wheels VERY stable :/ can't really explain. it depends on the car.

[Rhomphaia]

Wide wheels, and put the center of lift behind the center of mass. Make the wheels VERY stable :/ can't really explain. it depends on the car.

If you were trying to break my record, I would avoid using lift altogether. Use thrust to generate the down-force instead. Did have some success with vertical control surfaces for yaw stabilization though.

[Carl]

There aren't any wide wheels, (at least that don't flex like crazy)???

But thanks for the tip on downforce .

[Kasuha]

My experience is, it makes the car stable if you make it vertically symmetric, too. My experimental car was always going off course at higher speeds until I tried to put wheels upside down on its back. They were doing absolutely nothing there but the car went straight.

[Rhomphaia]

There aren't any wide wheels, (at least that don't flex like crazy)???

But thanks for the tip on downforce .

Wide wheel base, rather than wide wheels themselves

[HafCoJoe]

Can parts be clipping within other parts as long as we didn't use ALT-F12 to get them there?

Of course! just no ALT + F12

[gag09]

i am having a problem with my current design for this challenge Its ripping itself in half any recommendations on how i could solve this problem?

[gag09]

Once it reaches the launchpad can it lift off then double back as long as engines are not used?

Edited November 15, 2013 by gag09

[HafCoJoe]

Once it reaches the launchpad can it lift off then double back as long as engines are not used?

Not in the challenge :/ If you are going to use parachutes its ok to lift off to slow down a bit, but I don't want you guys to be flying while entering.