Poppa Wheelie Posted March 27 Share Posted March 27 That's how we're supposed to do this, right? ... Right? ... Oh well, too late. That's how I did it. With one launch, I flew a 300t payload to Minmus, and then flew that same payload to Duna. All screenshots: https://imgur.com/a/120d8Bt Highlights: Launch to LKO More: Spoiler About 12 fps during this entire ascent to orbit In LKO I separated the Refueling Module and a fairing covering the Refueling Module's docking port. I then separated a fairing covering the docking port of the main ship. LKO to Minmus landing Spoiler Burning for Minmus Approaching Minmus Deorbit burn Drop empty fuel tanks Landing Minmus back to LKO Spoiler Coasting to Ap while returning to Minmus orbit Departing Minmus Final docking approach to Refueling Module Refueling the HUSKY CHONKER with (most of) the fuel in the Refueling Module I then undocked the Refueling Module, exposed the deorbiting engine, oriented the Refueling Module retrograde, and did a deorbit burn LKO to Duna landing Burning for Duna More: Spoiler Departing Kerbin Approaching Duna My biggest engineering mistake came to light during the first landing attempt. I had already test landed an earlier version of this 300t payload. But the final version had 5 large reaction wheels on the bottom of each stack, facing into the Duna wind during atmospheric entry. During landing attempt 1, all 5 of those reaction wheels overheated and exploded. I still had over 300t of payload, but without reaction wheels I couldn't land in enough of an upright position to keep the payload intact. Result of landing attempt 1: On the second landing attempt, I maintained Radial Out orientation, and solar panels deployed, until below 20km ASL Shortly after this, I got some overheat bars, but I had also slowed enough to deploy parachutes. I stowed the solar panels, and deployed the parachutes. When I deployed the chutes, we moved to a Retrograde orientation, and 3 of the 5 reaction wheels overheated and blew up. Good chutes Landing engine assist I lost 1 vector engine in the landing, but still had 304.9954t intact By the way, I landed 20.2km from the landing location of my first Duna mission. Quote Link to comment Share on other sites More sharing options...
Vanamonde Posted April 23 Share Posted April 23 That was a big job. Congrats. Quote Link to comment Share on other sites More sharing options...
BechMeister Posted May 6 Share Posted May 6 Yay! A mission report that isn't just a video! On 3/27/2024 at 10:02 PM, Poppa Wheelie said: it just looks great when the boosters separate like that. On 3/27/2024 at 10:02 PM, Poppa Wheelie said: My biggest engineering mistake came to light during the first landing attempt. I had already test landed an earlier version of this 300t payload. But the final version had 5 large reaction wheels on the bottom of each stack, facing into the Duna wind during atmospheric entry. During landing attempt 1, all 5 of those reaction wheels overheated and exploded. I still had over 300t of payload, but without reaction wheels I couldn't land in enough of an upright position to keep the payload intact. Did you drop the idea of having heatshields to save the mass? Or was it to aid in landing (its a lot of weight after all) - I myself have started to have drop the heatshield once through the dangerous parts of the atmosphere. On 3/27/2024 at 10:02 PM, Poppa Wheelie said: By the way, I landed 20.2km from the landing location of my first Duna mission. nice x) Quote Link to comment Share on other sites More sharing options...
Poppa Wheelie Posted May 6 Author Share Posted May 6 8 hours ago, BechMeister said: Did you drop the idea of having heatshields to save the mass? Or was it to aid in landing (its a lot of weight after all) I have not needed or used heat shields for other Duna landings I've done in the game so far. So I didn't really consider them. I built version 1 of my 300t payload without heatshields, tested reentry and landing, and it worked. Including heat shields as part of the 300t payload from the beginning would have been the safer bet. Lesson learned. Quote Link to comment Share on other sites More sharing options...
BechMeister Posted May 6 Share Posted May 6 23 minutes ago, Poppa Wheelie said: I have not needed or used heat shields for other Duna landings I've done in the game so far. So I didn't really consider them. I built version 1 of my 300t payload without heatshields, tested reentry and landing, and it worked. Including heat shields as part of the 300t payload from the beginning would have been the safer bet. Lesson learned. Nah it seems that if you deorbit from a DLO - you can do it without any precaution.. since orbit speed is only like what.. 700-800 m/s? I dont remember.. So far Ive only been to Duna twice But I imagine that if you come in directly from Kerbin.. that's when heat shields are needed? - I'll find out more once I get on with the Duna Mastery Challenge. Quote Link to comment Share on other sites More sharing options...
Poppa Wheelie Posted May 6 Author Share Posted May 6 1 hour ago, BechMeister said: Nah it seems that if you deorbit from a DLO - you can do it without any precaution.. I did this landing from Duna Low Orbit. Fuel tanks can make it without heat shields, but reaction wheels cannot. Quote Link to comment Share on other sites More sharing options...
BechMeister Posted May 6 Share Posted May 6 2 hours ago, Poppa Wheelie said: I did this landing from Duna Low Orbit. Fuel tanks can make it without heat shields, but reaction wheels cannot. I see. Probably as weak as a engine plate then - they burn up if they exceed 700 m/s on Kerbin. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.