Where can you get using only jet engines?

[Whovian]

After the alarming number of fatalities in rockets, KASA decided they'd shut down the space program unless they agreed to stop using rocket engines. This seemed the end for space travel, until Jeb had a brilliant idea ...

Rules: Post a craft whose only sources of propulsion are air-breathing engines and RCS, along with where you managed to get.* Stock preferred, but not mandatory. Only use RCS for maneuvering or fine-tuning of orbits; do not rely on it for thrust. RAPIERs or similar modded engines must be used in air-breathing mode only.

*This is fairly vague. For concreteness, suborbital flights will be judged according to apoapsis.

Leaderbord:

1. NikkyD, ~205 km

2. Whovian, 133.792 km

(Others will be added)

My proof of concept in 1.0.2:

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Optional challenges (these are probably impossible, but I'd love to see them done):

1. Achieve stable orbit. (Hint: Kerbin has two moons. Use them.)

2. Impact any celestial body other than Kerbin.

3. Safely land on any atmospheric body other than Kerbin.

4. Return from Laythe ... using only air-breathing engines!

(These are where you might want to use RCS for fine-tuning.)

Edited June 25, 2015 by Whovian

[Foxster]

I think you might find that most of those intakes aren't doing anything. You'll get no less from the craft with just one ram air intake. Well, except they are adding drag, keeping it slow and so preventing a heatplosion.

I'm a bit concerned about the woolliness in your rules about RCS. Unless the RCS ports are pointed exactly perpendicular to flight then they are going add some thrust. Why not just say no RCS? Attitude adjustment can be done just as well with reaction wheels.

[NikkyD]

The new heat is a biach, managed to get up to 200.000m tho.

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Update: about 5km more if i drop the 2nd intake/tank

Edited June 24, 2015 by NikkyD

[Whovian]

I'm a bit concerned about the woolliness in your rules about RCS. Unless the RCS ports are pointed exactly perpendicular to flight then they are going add some thrust. Why not just say no RCS? Attitude adjustment can be done just as well with reaction wheels.

The idea's that minor course corrections for the optional challenges are doable with acute RCS-based adjustment; the level of precision required for, say, an Eve aerobrake is way beyond anything reasonably achievable with jet engines. I'll agree that it's a bit sketch; the intention is that minor delta-v from just having RCS thrusters is allowed, but relying on them for delta-v beyond "acute course correction" is not. Maybe I should just restrict RCS usage to those challenges?

The new heat is a biach, managed to get up to 200.000m tho.

http://imgur.com/a/teA2s

Update: about 5km more if i drop the 2nd intake/tank

Adding!

Edited June 25, 2015 by Whovian