Highest speed..... at low altitude!

[xxjetterxx]

The challenge is simple, acquire the highest speed at low altitude.

The following rules apply:

1. Must be jet powered only! The craft may not use any oxidizer, monopropellant, or Xenon.

2. Must take off horizontally from the runway (need not retain landing gear for the duration of the flight)

3. Screenshots! Must have screenshots of:

-a. Your craft on the runway (preferrably moving).

-b. Your craft in flight.

-c. Your craft's Flight Log (can be accessed by pressing F3) This is neccessary, as top speed will be measured by Highest Speed Over Land

--c1. For clarification, no, you are not allowed to jump out of your craft then take the flightlog screenshot.

-d. The resources tab must be open at all times, as proof of appropriate fuel usage.

-e. Any staging events that happen, such as drop-tanks, launch stages, wheel drops, etcetera.

4. Use of the dev console, particularly for part clipping, is exploitative and will be considered cheating for the purposes of this challenge.

5. This is primarily a stock challenge, so only stock parts are allowed, along with no other mods being installed. This means that CFG modding will earn you a permanent ban from the challenge.

6. No use of infiniglide, please. If you need more control, please use reaction wheels. (this doesn't mean no control surfaces, though.)

7. Keep under 500m, as this is the goal of this challenge.

Exceptions are as such:

-a. Subassembly Loader, as it does not interfere with craft capability, only ease of construction.

-b. Mechjeb, for Mechjeb category entries.

-c. Ferram Aerospace Research, but you must specify if you use it, as there will be a special accolade for users of that mod!

-d. Kerbal Engineer Redux, as it only provides readouts, though use of this will disqualify from being stock.

(Rules taken from maching bird challenge, if TheHengeProphet would like this removed, just tell me.)

Entries:

Stock

1. epursimuove @301 m/s

FAR

1. XXjetterXX - MagentMobile @ 500 m/s, images here: http://imgur.com/GsK44wt

Modded

Edited December 6, 2013 by xxjetterxx

[epursimuove]

Stock: 310.1 m/s.

The limiting factor is thrust, right? So I built a craft that's basically all engine.

Clarification: can the plane ever exceed 500m? You could go quite a bit faster by diving straight down from a high altitude.

[xxjetterxx]

What I did is I made a plane that's very light, but the secret is turbojets with circular intakes. the high intake air SUPERCHARGES them at low altitude.

[Traches]

Can I pleeeeaaaaaseee use my pwings?

Actually never mind, I didn't really need them.

Excuse the low quality mach effects-- they make my joystick lag so I turned them down.

And here's the proof.

That was fun! Made 571 m/s, with FAR. I have several other mods installed, but they didn't really apply to this.

It's tough trying to balance adding drag with keeping the craft stable. I've got a hunch that drag matters far more than mass; I bet if I added a little more ballast to the nose that would let me either shorten the craft or use fewer/smaller control surfaces (maybe even ditch the vertical stab altogether) and get a little faster.

It's a good challenge, thanks jetter! I love how completely opposite this one is from the last challenge I entered-- started both with 150 units of fuel; in one I burned it in 2 minutes, in the other I made it around kerbin.