Kowgan Posted August 24, 2015 Author Share Posted August 24, 2015 Great stuff, man. Thanks for the effort. OP updated. Quote Link to comment Share on other sites More sharing options...
Kerbas_ad_astra Posted August 27, 2015 Share Posted August 27, 2015 One link that I see has been forgotten, but may be handy to have for asteroid-ejection missions: escaping the solar system from Kerbin's orbit. If I recall my astrodynamics correctly, Vesc is sqrt(2) times Vcirc (for any given circular orbit), so the delta-V to escape from the Sun at the edge of Kerbin's SOI is (sqrt(2)-1) * Vkerbin = 0.414*9284.5 m/s = 3843.8 m/s. Quote Link to comment Share on other sites More sharing options...
swashlebucky Posted August 28, 2015 Share Posted August 28, 2015 Good idea. I'm not sure how to include that into the map though. It would have to be linked to the Kerbol line, but at the same time it can't be on the line itself. Having just one tiny arm go off might look weird. Quote Link to comment Share on other sites More sharing options...
Kerbas_ad_astra Posted August 28, 2015 Share Posted August 28, 2015 Maybe a line below Eeloo's branch. Instead of leading to a circle as the others do, it could end with an arrow and have text overlay saying "Escape" or "Interstellar Space" or something. If we could give Eeloo a different color (it's white/light grey with brown stripes), black would work well for this branch.Alternatively, we could bump Eeloo's branch to the top of the SOI-edge lozenge with the rest (or down to the bottom?), and then the Escape branch would connect to the end and lie directly opposite the Kerbol branch.(Also, given the number of sig-figs in the other labels, 3845 or 3850 m/s is probably a better number to use.) Quote Link to comment Share on other sites More sharing options...
swashlebucky Posted September 1, 2015 Share Posted September 1, 2015 Looks like we have work to do. Outer Planets was updated. Neidon now has moons. I guess it's good we have that extra whitespace on the OP map. Quote Link to comment Share on other sites More sharing options...
Starbuckminsterfullerton Posted September 1, 2015 Share Posted September 1, 2015 (edited) Looks like we have work to do. Outer Planets was updated. Neidon now has moons. I guess it's good we have that extra whitespace on the OP map.That's what brings me back here every now and then. I'd been using the OPM WAC map (with the stairs), since there was never a version of Galahir's that had it, but this is the first time I've seen yours swash, and it's really good! The compact high/low orbit symbols are great, every destination is on either a vertical or horizontal axis, Jool and Sarnus' moons all line up, everything is finally the right color (no more dark green Minmus!), destination totals... I could go on. I do kinda wish that the OPM map was a single image, but that's easy enough to do on my own. Great work on this one, the delta-v map is one of the most important and useful contributions from the community and you've done a fine job maintaining it. Edited September 1, 2015 by Starbuckminsterfullerton Quote Link to comment Share on other sites More sharing options...
swashlebucky Posted September 1, 2015 Share Posted September 1, 2015 There's an A3 version with both on one page here: http://pingur.net/e1e1d3/DvMap_OP_A3.pdf Quote Link to comment Share on other sites More sharing options...
Warzouz Posted September 2, 2015 Share Posted September 2, 2015 About EVE, I just succeed reorbiting to 140km, and I spend 6500m/s (VAC). The listed 10000m/s is off.My ship had 9400 m/s VAC and I had 2900 left at 140km. I started from 1250m (Midlands)I think 7000 m/s VAC for Eve would be sufficient, no ? Quote Link to comment Share on other sites More sharing options...
PatPL Posted September 2, 2015 Share Posted September 2, 2015 I'd love to have one to use with RSS too. Quote Link to comment Share on other sites More sharing options...
Starbuckminsterfullerton Posted September 2, 2015 Share Posted September 2, 2015 There's an A3 version with both on one page here: http://pingur.net/e1e1d3/DvMap_OP_A3.pdfOhh, you split it so we could print... It all makes sense now. Thanks for the big version! Quote Link to comment Share on other sites More sharing options...
Kowgan Posted September 3, 2015 Author Share Posted September 3, 2015 About EVE, I just succeed reorbiting to 140km, and I spend 6500m/s (VAC). The listed 10000m/s is off.My ship had 9400 m/s VAC and I had 2900 left at 140km. I started from 1250m (Midlands)I think 7000 m/s VAC for Eve would be sufficient, no ?Did you take off from sea level?Provide .craft file, and if possible, a video footage of your ascent including visible numbers (TWR, stages dV) through it, or a reasonably detailed report of your ascent, so we can reproduce it.Otherwise, I can consider the listed statement off. Quote Link to comment Share on other sites More sharing options...
Warzouz Posted September 3, 2015 Share Posted September 3, 2015 No, I didn't take off from sea level because I failed to land on shores. Landing a 180tons in water always end badly As I said I startd from 1200m in midlands (as is most of the dry land mass on the equatorial plane)The ship isn't even optimized, It's my first successful attempt.As my boosters tends to crash on the main core, I had to fly straight up until they where empty, ditch them and turn east (around 15km). As I overheated the command pod, I had to turn the ship up to cool it a little. I have to work on my ascent vehicle, I'll post you some pictures. I'll keep track of my expended dV, but I may have a hard time starting from sea level. (I fail to have Hyperedit do that) I have to landit manually, and I must say that I'm more focued on having the critical temp under 98% than choosing my landing site...PS : I could aim for exploding sea and ignite engines before touching water, that would be possible. Quote Link to comment Share on other sites More sharing options...
nsgallup Posted September 5, 2015 Share Posted September 5, 2015 When should we expect Neidons moons to be included? Quote Link to comment Share on other sites More sharing options...
Kowgan Posted September 5, 2015 Author Share Posted September 5, 2015 Soonâ„¢. Quote Link to comment Share on other sites More sharing options...
xebx Posted September 9, 2015 Share Posted September 9, 2015 (edited) I did a few Eve reorbit (120km) recently from 600m or 1200m and i needed respectively 7250 m/s or 7000 m/s delta-V (vac), it's probably 7500 m/s from sea level. (8000 m/s safe value) It depends on twr (mine was 1.1 at liftoff, max 3), ascend profile and aerodrag which were not perfect, on Kerbin this ship can ascend at 45% (MJeb) but on Eve it won't work under 85% (boosters blast the rest of the rocket even with 200% tweakscaled sepratron and 0° AoA, and it ends with more heating problems if the ship flies longer in the thick atmo).To get to 100km Eve stable orbit after a trip from kerbin (1290 m/s ejection from LKO was the lowest speed at that time for this window, 114 days), i needed 2000 m/s delta-V (1300 burn + 700 aerobraking) approximatively, my speed was 5200 m/s at first time at this altitude.mission report here Edited September 11, 2015 by xebx small adjustments Quote Link to comment Share on other sites More sharing options...
Violent Jeb Posted September 10, 2015 Share Posted September 10, 2015 (edited) If Kerbin can be done for 3300-3600, 8k for Eve seems reasonable.Pics seem pretty conclusive, it'd be nice to have the dv readout for the craft on eve's surfaceWhile i'm here..I re-arranged the current map so that it is a bit more viewable on a horizontal screen, since my screen is horizontal. I can view this without zoom on a 32 inch monitor.I take no credit aside from jiggling things around in paint. Hope someone finds it handy! It stays open on the PC.. super helpful! Thanks to the OP! Edited September 10, 2015 by Violent Jeb made link Quote Link to comment Share on other sites More sharing options...
Kowgan Posted September 10, 2015 Author Share Posted September 10, 2015 I guess we'll go with 8k for Eve, then. I'm so curious about people's reactions on this one. Prepare the shields!Nice tweak, Violent Jeb. I'm glad you could make good use of the open-sourceness on this. Quote Link to comment Share on other sites More sharing options...
Warzouz Posted September 10, 2015 Share Posted September 10, 2015 @Kowgan. Sorry, I didn't had time to go on my test. I tried to size down my 180tons ascent vehicle. The result was aerodynamically unstable. 8000 is a safe value. Quote Link to comment Share on other sites More sharing options...
xebx Posted September 11, 2015 Share Posted September 11, 2015 (edited) After recheck my ejection burn from lko was 1290 m/s not 1190 m/s, it was the lowest speed for a fast transfer (114 days). The real lowest speed is 1050 m/s approx for a slow transfer (181 days). This explain the excessive speed (5200 m/s) i had at first time above Eve atmosphere. I also rechecked vac delta-V of the Eve lander and it's 8200m/s, so i adjust the delta-V requirement for 1200m, 600m and sea level in my previous post. (not a big difference) Edited September 14, 2015 by xebx Quote Link to comment Share on other sites More sharing options...
lajoswinkler Posted September 13, 2015 Share Posted September 13, 2015 I did some tests with Thatmo (OPM).Starting with 25 km equatorial circular orbit, it took me 1126 m/s to land and 904 m/s to get back up. Quote Link to comment Share on other sites More sharing options...
Majorjim! Posted September 14, 2015 Share Posted September 14, 2015 (edited) Is this correct? You have that it takes 950m/s from LKO to the elliptical orbit to SOI edge. Then only 130m/s from there to an encounter with Duna. Unless I am not reading it correctly that doesn't sound right at all. Who is in the wrong here?EDIT: I just realized this is because of a continuous burn from Kerbins SOI. Man, only an extra 130m/s taking advantage of the Oberth effect has solved my dv issue. To the Assembly building! Edited September 14, 2015 by Majorjim Quote Link to comment Share on other sites More sharing options...
Red Iron Crown Posted September 14, 2015 Share Posted September 14, 2015 Is this correct? You have that it takes 950m/s from LKO to the elliptical orbit to SOI edge. Then only 130m/s from there to an encounter with Duna. Unless I am not reading it correctly that doesn't sound right at all. Who is in the wrong here?It's correct, but you don't do it as two burns, you do it as a single burn of 1080m/s from LKO. Quote Link to comment Share on other sites More sharing options...
Majorjim! Posted September 14, 2015 Share Posted September 14, 2015 It's correct, but you don't do it as two burns, you do it as a single burn of 1080m/s from LKO.Ninja'd my edit by one min. Cheers. Quote Link to comment Share on other sites More sharing options...
Dimenus Posted October 2, 2015 Share Posted October 2, 2015 Is this correct? You have that it takes 950m/s from LKO to the elliptical orbit to SOI edge. Then only 130m/s from there to an encounter with Duna. Unless I am not reading it correctly that doesn't sound right at all. Who is in the wrong here?EDIT: I just realized this is because of a continuous burn from Kerbins SOI. Man, only an extra 130m/s taking advantage of the Oberth effect has solved my dv issue. To the Assembly building!God damnit. I've been overbuilding so hard.... . Planning on using an extra 1k dV both ways. Quote Link to comment Share on other sites More sharing options...
DDE Posted October 17, 2015 Share Posted October 17, 2015 Err, any guess on when we'll get an update for the Outer Planets maps?​​ Quote Link to comment Share on other sites More sharing options...
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