Spartwo Posted January 17, 2014 Share Posted January 17, 2014 Quote Link to comment Share on other sites More sharing options...
inigma Posted January 17, 2014 Share Posted January 17, 2014 This is the Sparrowhawk. It's a stunt plane of an SSTO and is somewhat based off of this: http://forum.kerbalspaceprogram.com/threads/29765-Mockheed-Lartin-Aeronautics-Graveyardhttp://imageshack.com/a/img690/7318/trvi.pngProblem is, it's flip happy. The aircraft becomes completely uncontrollable once I kick in the LV30. I'm not sure if switching it out for a LV45 would help.I'll also be adding pics of the Midge later.Any advice regarding control issues? My RCS is currently set up to do rotation too rather than have an SAS unit on. I can try that route too.Looks like too much forward wing. Quote Link to comment Share on other sites More sharing options...
inigma Posted January 17, 2014 Share Posted January 17, 2014 http://i.imgur.com/k408PYf.pngSpartwovtol ssto?i love the shadow Quote Link to comment Share on other sites More sharing options...
Spartwo Posted January 17, 2014 Share Posted January 17, 2014 Spartwovtol ssto?i love the shadowIndeed,I plan for it to be a not-so stupidly easy to fly version of the Sabre. Quote Link to comment Share on other sites More sharing options...
SofusRud Posted January 17, 2014 Share Posted January 17, 2014 Might as well post these here as wellFluffles Mk-4 and Fluffles Mk-4C Quote Link to comment Share on other sites More sharing options...
Commissar Posted January 17, 2014 Share Posted January 17, 2014 This is the Sparrowhawk. It's a stunt plane of an SSTO and is somewhat based off of this: http://forum.kerbalspaceprogram.com/threads/29765-Mockheed-Lartin-Aeronautics-Graveyardhttp://imageshack.com/a/img690/7318/trvi.pngProblem is, it's flip happy. The aircraft becomes completely uncontrollable once I kick in the LV30. I'm not sure if switching it out for a LV45 would help.I'll also be adding pics of the Midge later.Any advice regarding control issues? My RCS is currently set up to do rotation too rather than have an SAS unit on. I can try that route too.center f lift behind (by half a meter or so), and slightly above the COG. simple, effective means of stability Quote Link to comment Share on other sites More sharing options...
Silverchain Posted January 17, 2014 Share Posted January 17, 2014 (edited) Skurj 23-Q Dunan Bananaslip, carrying some extra fuel in a front drop tank, breaking for Kerbin orbit.After an uneventful interplanetary transfer, the Bananaslip arrived at Moho.Just kidding.Duna.Well, blast... I'd found what looked like a lovely big flat area on the equator, and touched the wheels down okay...After maybe a kilometre of braking things started to go wrong. Bits of plane went everywhere and Charlie Kerman was lucky to survive. Unfortunately, half of the science instruments were lost and worse, the aerial was destroyed in the crash.Shortly afterwards Barbree Kerman in the Stochastic attempted another landing and was killed when the plane slammed into an unexpected hill at 200ms-1.Stochastic had been ferried over by the heavy spaceship Land of Sand, which is waiting in a high elliptical orbit carrying vast quantities of fuel.I suspect Duna will claim more Kerbals soon. Edited January 17, 2014 by Silverchain Quote Link to comment Share on other sites More sharing options...
Captain Sierra Posted January 17, 2014 Share Posted January 17, 2014 center f lift behind (by half a meter or so), and slightly above the COG. simple, effective means of stabilityAs with all my aircraft, CoL is about a quarter to a third meter behind and in this case, about a quarter meter below. That's not the problem or else I wouldn't be able to get up to the mach 3 cruise. I can get to the cruise phase but the thing goes wobbly as hell the second I hit the rocket (which is right as the the engines begin to flame out). Now the flameout kicks me to the side a hair but I can correct manually. Now, SAS seems INCAPABLE of holding the bird and I have ZERO idea why. The dumb physics engine makes the bird a huge pain to fly with the rocket. Now with jets it's a wonderful flight, very stable, agile (almost too much so). You gotta be careful with it or else you can put it into a flatspin right off Could it have anything to do with CoL being below CoM? Quote Link to comment Share on other sites More sharing options...
Rune Posted January 17, 2014 Share Posted January 17, 2014 As with all my aircraft, CoL is about a quarter to a third meter behind and in this case, about a quarter meter below. That's not the problem or else I wouldn't be able to get up to the mach 3 cruise. I can get to the cruise phase but the thing goes wobbly as hell the second I hit the rocket (which is right as the the engines begin to flame out). Now the flameout kicks me to the side a hair but I can correct manually. Now, SAS seems INCAPABLE of holding the bird and I have ZERO idea why. The dumb physics engine makes the bird a huge pain to fly with the rocket. Now with jets it's a wonderful flight, very stable, agile (almost too much so). You gotta be careful with it or else you can put it into a flatspin right off Could it have anything to do with CoL being below CoM?The LV-T30 has no thrust vectoring, unlike jets (and control surfaces rely on air pressure). Thus, your are limited to crew cabin torque for controllability. If your CoM is just a tad lower than the CoT, then there's your problem. Does landing gear have mass in 0.23? It didn't use to. Anyhow, the drag or the weight of the wings would be enough to create some downwards-pitching momentum. And cabin torque is not that great. Either add a reaction wheel, or switch to an LV-T45. Better yet, use either a LV-909 or a cluster of 48-7S's, you have too much thrust there. Tip to get by on low rocket thrusts: you can further milk jet engines by throttling them down without switching them once once you start the rocket. They will relight and you can build up vertical speed aided by their thrust until you have to rely completely on rockets (I go for when it flames out at 33% throttle personally).Rune. Hope that helps. Quote Link to comment Share on other sites More sharing options...
Gildor73 Posted January 17, 2014 Share Posted January 17, 2014 My New Goddess: Athena Quote Link to comment Share on other sites More sharing options...
Captain Sierra Posted January 17, 2014 Share Posted January 17, 2014 (edited) The LV-T30 has no thrust vectoring, unlike jets (and control surfaces rely on air pressure). Thus, your are limited to crew cabin torque for controllability. If your CoM is just a tad lower than the CoT, then there's your problem. Does landing gear have mass in 0.23? It didn't use to. Anyhow, the drag or the weight of the wings would be enough to create some downwards-pitching momentum. And cabin torque is not that great. Either add a reaction wheel, or switch to an LV-T45. Better yet, use either a LV-909 or a cluster of 48-7S's, you have too much thrust there. Tip to get by on low rocket thrusts: you can further milk jet engines by throttling them down without switching them once once you start the rocket. They will relight and you can build up vertical speed aided by their thrust until you have to rely completely on rockets (I go for when it flames out at 33% throttle personally).Rune. Hope that helps.The ascent profile I've been using lately, I need a rocket TWR of at least 1. I need a LV45 minimum for that.Specifically, it involves going up more than a traditional profile during the rocket phase to save on drag losses later at the expense of some gravity losses at rocket ignition. Also, the craft in question originally had 2 LV-909s, more than enough fuel, and a single turbojet. The problem there was not enough jet thrust so getting to orbit was pretty much brute force. from 16km, less than efficient in any sense of the word. Edited January 17, 2014 by Captain Sierra Quote Link to comment Share on other sites More sharing options...
O-Doc Posted January 18, 2014 Share Posted January 18, 2014 (edited) I'm just happy with a working SSTO. I don't care what I have to do to make that.EDIT: I've read multiple people talking about a descent phase to get under 20km before they pitch up into the exit maneuver. That's the first I've heard of that. How does that style of ascent work? It might be what I need to help me break 32km before I need to cut thrust (reducing drag losses)I literally threw together your design in 5mins. Didn't even check CoM, CoL or CoT. It went into space after four attempts. I made orbit after another two. I can tell you that your lack of pitch authority is due to the elevons being too close to the CoT. A canard would fix that issue.Javascript is disabled. View full album Edited January 18, 2014 by O-Doc Gallery code... Quote Link to comment Share on other sites More sharing options...
razgriz86er Posted January 18, 2014 Share Posted January 18, 2014 i took my old vtol ssto plane and reworked it. basically i jammed 2 copies on the wings, slapped on a coat of paint and called it an air show.i was curious to if this would work better or worse than the original 1. for the most part it worked the same as the original except for engine stagingin air breathing mode i staged the engines to start off with all 3, cut the center to keep 2 lit in the upper atmosphere and finally cut those two and just reignite the 1 on full. would this count as 1 ssto or 3 ssto? Javascript is disabled. View full album Quote Link to comment Share on other sites More sharing options...
flyin_ruski Posted January 18, 2014 Share Posted January 18, 2014 Three crew plus a hitchhiker can. Gonna send it to the Mun once i develop a 'pusher' vehicle. Quote Link to comment Share on other sites More sharing options...
Spartwo Posted January 19, 2014 Share Posted January 19, 2014 Still haven't left KSC but it has as much D/v as it's 'special' counterpart so it'll work. Quote Link to comment Share on other sites More sharing options...
Mesklin Posted January 19, 2014 Share Posted January 19, 2014 Here is some Bob's photos from his vacation on the beaches of LaytheJavascript is disabled. View full album Quote Link to comment Share on other sites More sharing options...
soulreaver1981 Posted January 19, 2014 Share Posted January 19, 2014 Here is my latest design sttohttps://imagizer.imageshack.us/v2/240x135q90/c/36/6vqi.jpgand the links for the plane and a video:http://forum.kerbalspaceprogram.com/threads/66538-new-dutch-design-%28elysium-mk-3%29-stto-vtol Quote Link to comment Share on other sites More sharing options...
Silverchain Posted January 19, 2014 Share Posted January 19, 2014 Skurj 23-V Channel Nine approaching Duna.You can't help but like Ike!After adding extra intakes to this model and flying a better ascent, it was up to 55km before the jets cut out. Quote Link to comment Share on other sites More sharing options...
KissSh0t Posted January 20, 2014 Author Share Posted January 20, 2014 Here is some Bob's photos from his vacation on the beaches of Laythehttp://imgur.com/a/67U4fDid you cheat fuel or was that legit? Quote Link to comment Share on other sites More sharing options...
Silverchain Posted January 20, 2014 Share Posted January 20, 2014 (edited) Project Limpid Ginger in 160x160 Kerbin orbit.Nice looking, I think. It handles well in atmosphere and naturally leaps into the air from the runway. Doesn't have such niceties as a docking port, a parachute, electricity or !!Science!! bits yet, but it's carrying way more jet fuel than it needs so can be lightened to compensate. And there's totally room for another couple of radials on the nose. ...and the finished article, the Dearworthy A Wreckage Looks The Same in 205x205 Kerbin orbit.It gets up to about 2250ms-1 on turbojets and needs only a small orbital insertion burn; at this point it's got about 350ms-1 reserve, but it's carrying surplus fuel which can either be kept for a spin around Kerbin, dumped for better performance or exchanged for a small payload. Landing is fine on runways and flat surfaces though it does have a tendency to bounce into the air after the wheels first touch down. Landing on bumpy ground is... less advisable but doable. The parachute can usually be deployed at speed and with all engines on, which trashes the plane but keeps the pilot alive. It's really nippy for flying round at low level and at one point I was dragging it round the sky over KSC in a full out, sustained turn and it didn't spin out, which is a first for my planes...Dearworthy A.craft Edited January 20, 2014 by Silverchain Quote Link to comment Share on other sites More sharing options...
Mesklin Posted January 21, 2014 Share Posted January 21, 2014 (edited) KissSh0t, no cheats, this craft has 4000+ m/s dV on low Kerbin orbit. It is enough for reach Laythe and return with spare fuel (about 300 m/s dV)Last seconds before start ejection burn Edited January 21, 2014 by Mesklin Quote Link to comment Share on other sites More sharing options...
Devinci Posted January 21, 2014 Share Posted January 21, 2014 (edited) 4 Kerbonauts SSTO 3000m/s deltaV after orbit, check thread for download: http://forum.kerbalspaceprogram.com/threads/66732-4-Kerbonauts-SSTO?p=919807#post919807 Edited January 21, 2014 by Devinci Quote Link to comment Share on other sites More sharing options...
KissSh0t Posted January 21, 2014 Author Share Posted January 21, 2014 KissSh0t, no cheats, this craft has 4000+ m/s dV on low Kerbin orbit. It is enough for reach Laythe and return with spare fuel (about 300 m/s dV)Last seconds before start ejection burnhttp://i.imgur.com/pFyWLDB.jpgVery Impressive. Quote Link to comment Share on other sites More sharing options...
Rune Posted January 22, 2014 Share Posted January 22, 2014 New one on the barn. Check out it's thread if you like it.Rune. Can't stay away form this thread long. Quote Link to comment Share on other sites More sharing options...
Silverchain Posted January 23, 2014 Share Posted January 23, 2014 I'm developing a real fondness for the swept wings. Quote Link to comment Share on other sites More sharing options...
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