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Found 7 results

  1. What is the relationship between the air intake number and the jet engine air number? The wheesley engine has a air in take of 29 but runs fine on a ramp intake that has only 2.
  2. Hello everyone, and welcome to the.... HIGHEST ALTITUDE ACHIEVED CHALLENGE "But what is this challenge?" I hear you ask. Well, this challenge is about achieving the highest possible altitude (duh ), with jet engines only. RULES: 1. No ALT-F12 CHEATS, KRAKEN DRIVES, LADDER DRIVES, BUG EXPLOITS, OR OTHER SHENANIGANS. 2. ONLY JET ENGINES. 2a. R.A.P.I.E.Rs are fine as long as they stay on air-breathing mode 3. NO PART MODS. 3a. Mechjeb, KER, Pilot Assistant and other autopilot/informational mods are allowed. 3b. Visual mods such as EVE, Scatterer and the like are of course allowed. 4. MAXIMUM 30 ENGINES [This is so people with huge SSTOs can try this challenge out, as they usually have a large amount of engines on their craft]. 5. MUST BE KERBALLED. 6. MUST BE ABLE TO REACH SPACE (70,000 meters) [This is to prevent ridiculous scores like this. Look at the crossed out score and you'll see what I mean.] 7. STOCK AERO AND FAR 8. SCREENSHOT PROOF - Of takeoff, highest altitude, landing, flight results screen (F3). 9. CHUTES FOR SLOWING DOWN ON THE GROUND ARE OK, BUT THEY CANNOT BE USED SOLELY FOR LANDING - Basically, you can use drogue chutes to slow you down once you're on the ground, but you can't use them to land like a space capsule. 10. MUST BE SINGLE-STAGE - YOU CANNOT DROP ANY PARTS. 11. MUST BE ABLE TO TAKE OFF HORIZONTALLY FROM THE RUNWAY. 12. ATMOSPHERIC DENSITY (OR WHATEVER IT'S CALLED) MUST BE SET TO 100%. 13. KERBAL(S) MUST SURVIVE ENTIRE FLIGHT. SCORING TYPE 1: Highest altitude is your score. This is for seeing absolutely how far a jet engine can go into space. Oh, and the kerbal must survive. TYPE 2: Your score is: highest altitude in meters * (number of kerbals / number of engines) So if you reached an altitude of 100,000m, you had 16 kerbals on board and you used 8 engines, your score would be as follows: 100,000 * (16 / 8) = 100,000 * 2 = 200,000 points LEADERBOARDS
  3. I just read on the wiki that Laythe's atmosphere has a lower oxygen concentration the Kerbin's. I assume this effects the efficiency of jet engines. I have a jet powered boat en route to Laythe and another being prepared for launch. The one en route and the new one I'm working on do not have air intakes other than the engine nacelle parts, one for each engine. These provide 5 air, which is more than the engines i'm using require on Kerbin at sea level. But I doubt sea level on Laythe has the same conditions. Should I add air intakes to the boat I'm working on?
  4. I know the exact composition of Eve's atmosphere or its oceans is a mystery, but I like to think of it as some sort of organic chemistry, something that would burn If added Oxidizer. How about jet engines would work there, but in reverse: Burning oxidizer in a fuel-rich environment instead of fuel in an oxidizer-rich environment. I now this would change gameplay drastically. I'm curious about your opinions.
  5. Hi, I am currently modding the J404 Engine to fit it to my SU27 replica (might release as part mod eventually). I noticed something weird when I was editting the engine curves and trying them out ingame and this is true for Stock KSP engines aswell. The static thrust of the J404 is 130kN, @ Mach 2.5 it is supposed to be 219.5kN okay that is as advertised when you try it out. However when I look at the curves the thrustmultiplicator of the J404 at mach 2.5 is 3.5. 219/130 is a mere 1.8-ish of the thrust that the curve says. I thought the atmospheric curves play a role in this and might explain the vastly lower thrust, but nope even with a constant atmospheric curve the engine still is not producing the amount of thrust. What variable am I missing? What else is playing into the calculation of the thrust? I really don't want to make totally ridiculous thrust curves and have multiplicators like 6 or higher in there. (I hope this is the correct subforum to ask this)
  6. At sea level, Mach 3 is around 1021m/s but by the time you get to 60,000ft or 18,288m it's down to around 885m/s. Does KSP model this change when it comes to the performance of jet engines that vary thrust depending on your velocity?
  7. I'd like to see a few ramjet engines that need to be going above a certain airspeed to produce thrust but which unlike @8bitsblu's Instell scramjet engines, can provide thrust at speeds below 900 meters per second, and also unlike his scramjets, can accelerate a craft from slower speeds starting in the thicker air of the lower-atmosphere. And before you say that's not a ramjet, I present to you, the work of René Leduc, designer of the O.10, the first ever aircraft to be propelled solely by a ramjet engine. Yes, it had to be carried aloft piggy-back style atop another plane, and air-launched, the O.10, and all of Leduc's ramjet-powered aircraft to follow, the O.16, and the O.21, all spent 100% of their flight-time at subsonic speeds. The O.10 and the O.21 wikipedia pages for your perusal. A few higher-speed ramjets to bridge the gap betwixt these and the hypersonic scramjets would make for a way to potentially get into orbit using only air-breathing engines from the launch-pad until entirely out of the atmosphere.