IMFD AppG Playback Notes

IMFD Appendix G - Playback In-flight Notes

This Appendix contains all in-flight notes for all playbacks. If you missed an in-flight note, or you just want a hard copy, here they are. It is highly recommended that you take all flights in order as some lessons use material introduced in past lessons.

IMFD Tutorial #1—Direct Ascent to the Moon

IMPORTANT: Since I used High Resolution KSC for this playback, depending on whether you have it installed or not, this flight might not start you on the runway. Don‘t worry, you will still get to the Moon.

IMFD Tutorial #2 — Mars to Phobos

 0 Welcome to IMFD Tutorial #2--Mars to Phobos!!! 7 This tutorial includes a flight from Mars to Phobos, with a landing on PreludeII Phobos. 16 The method used here is the EXACT same method used to get from the Earth to the Moon. 32 So, using this method, substitute "Moon" for "Phobos" and "Earth" for "Mars" and you will get to the moon no problem. 45 Welcome to Olympus Base. We're in a deltaglider. 52 Open IMFD, and select Surface Launch. we'll plan our course once we're in orbit. 65 With Course highlighted, hit the [+] button until lunar off-plane comes up. 78 Set the target to Phobos. 86 Notice EIn. This is Ejection Inclination, and we'll take off when it's zero. Time warping until that point. 15834 EIn is less than 1 degree. When we take off, we'll turn towards a heading of 90 degrees, because the Hed item in the Surface Launch Program is 90.00. 16316 Takeoff!!! We'll turn to 90 degrees, then ascend. The ascent is not too long, so we'll be doing it in realtime. Don't leave your computer, important instructions follow. 16464 Now that we have picked up some speed, we can introduce side slip (yaw the nose left or right) to minimize EIn (as our goal for this number is zero). 16642 There's Main Engine Cutoff. Not the best orbit, but it's a quick fix once we reach apoapsis. 17394 That's good enough, it doesn't have to be perfect, as we'll be leaving soon. 17400 Ok, time to plan our course to Phobos. Hit the [MNU] button, then select Course, and Target Intercept. 17413 Set the target to Phobos, then scroll to TIn, hit Set, and input 7200. 17423 Scroll until TOF-Unlocked is selected, then hit [+] to make it locked. This is so when we adjust TEj, the difference between TIn and TEj (time of flight) stays the same. 17445 Now we must adjust TEj until dV reaches a minimum. Since I have already flown this flight, I know that the approximate value is 4570, so highlight TEj, hit Set and then input 4570. 17470 Now, with Adj at 1x on the bottom (hit Adj until it is), use [+] and [-] to adjust TEj to make dV a minimum. 17490 Note how EIn is a bit off, so we'll turn Orbit Anti-Normal to make the plane change burn. Remember, we don't have to be at a node--EIn can be adjusted anywhere, but it's most efficient at a node. 17596 EIn is zero. Now, we'll turn off the Anti-Normal autopilot, then I'll hit the [AB] button. 22041 5 seconds until burn. 22046 Engaging main engines. 22115 Autoburn complete. Notice how quickly dV is changing. Because Phobos moves so fast (it's very close to Mars so it has a low orbital period) any tiny deviation in dV is "amplified." 22140 Don't worry, with an Earth to Moon flight, dV won't change nearly as quickly at all--it will hardly change at all. This is just for flying to a target that moves fast (low orbital period). 22153 Time warping until we're halfway to Phobos. 24783 Let's do a midcourse correction burn. Engaging Autoburn. 24804 The burn is complete, and dV is very close to zero. Let's time warp until we're closer to Phobos. 28002 We're closer, and dV has deviated, so let's do another course correction. Engaging Autoburn. 28030 Good, dV is minimal again, let's time warp until we're even closer. 28590 Let's do one more mid course correction. Since we're doing this correction with the course program, it is trying to crash us into the dead center of phobos. 28600 When flying to the moon, this would be BAD, but since we're not entering orbit around phobos, it's no problem. 28612 Autoburn is done. Open the Orbital Program now. 28620 Select the Velocity Match Program ([VeM] on the right). 28625 Set the target as Phobos. 28635 dV is 782 and distance to phobos is 467.7k. Let's wait until we're closer to initiate Autoburn. 29116 Ok, engaging autoburn. 29151 Ok, I cut Autoburn off early. I don't want to cancel too much velocity too quickly, or it would take forever to get to Phobos. 29212 Ok, bring up Surface MFD in the MFD that doesn't have IMFD. Let's cancel some more velocity. Engaging Autoburn. 29235 dV is good for now. 29242 Approaching Phobos. Go to external mode (F1). What a view!!! 29310 Now we'll do our final autoburn to completely match our velocity to Phobos's velocity. 29330 Our velocity relative to Phobos is now zero. 29348 Now rotating towards Phobos. Let's see if we can see PreludeII Phobos from out here. 29367 Base sighted! Now we'll fly towards it. 29390 Retro doors are open. 29790 Landing on Phobos. Sit back and relax. 29839 Open the Comm/Nav MFD in place of IMFD (we won't be needing it anymore), and set Nav1 to 134.1 (the VTOL frequency of Phobos). Then open VOR/VTOL MFD. 29925 Gear down. 30041 Touchdown!!! Important: landing on moons with low G fields (tiny moons close to planets--Phobos, Amalthea, Pan, etc.) can be tricky. You have to hit kind of hard (-.2 m/s) to land. We bounced the first time because we didn't land hard enough. 30060 Enjoy the view of Mars over the rail at the edge of the pad. 30075 Enjoy your stay at PreludeII Phobos. This is Markl316, signing off.

IMFD Tutorial #3 — Europa to Callisto

 0 Welcome to IMFD Tutorial #3--Off-Planar Flight from Europa to Callisto!!! 10 Open IMFD in the left MFD display. 20 Hit [MNU], then the course button, then [SEL] to select Target Intercept. 30 Hit [TGT], then type callisto. Since this is where we are flying to, Callisto is our target. 40 Scroll down to the TOF-Unlocked item, then hit [+] to change it to TOF-Locked. We will be time warping quite a bit to a launch window, and we want time to ejection AND time to intercept to go up at the same rate. 55 Hit [Adj] until the Adjustment factor in the bottom of the screen says 100x. 62 Highlight the GET item under TEj, and adjust it with [+] until dV hits a minimum. Then, hit [Adj] until it says 10x, and repeat process, and do the same with 1x until you hit an absolute minimum. 90 Values for this particular flight are approximately TEj=367.4k and TIn=765.7k. 100 Unlock TOF the same way you locked it. Also note how above it there is an item that says Off-Plane. This is good, as we are doing an off plane intercept. 114 Now time warping until TEj says 6400k (this is an estimate of the time from takeoff to ejection burn). 361097 Open IMFD in the left MFD display, hit [PG] and enter 0 (sharing with IMFD with ID zero-- the left MFD display) and bring up surface launch. 361120 The Surface Launch program says we should fly a heading of 88.467 degrees. Let's take off and turn to that heading. 361135 If you missed it, before we took off, Surface Launch said our optimum takeoff was in about 93000 seconds. 361145 That was the OPTIMUM launch time. We took off not at that time because we have a shorter time of flight, so it would eat in to a greater percentage of the flight (93000 divided by time of flight which is ~470k seconds). 361185 For an Earth to Mars flight, the time of flight is very long (about 21,000,000 seconds), and the earth has a fast rotation (optimum launch time twice every 24 hours) so it's not a big deal to wait for a good window in that situation. 361205 I'm going so high before engaging our main engines because if you have Orulex running, we don't want to crash into an ice cliff. 361220 Now we're rotating to keep EIn in the Surface Launch program at zero. 361321 There's Main Engine Cutoff. We don't need to worry about raising our PeA, as this is a parking orbit. 361335 Open Orbit Eject, and change Higher Orbit to Course. For this tiny plane change maneuver (0.01 degrees), I'll use sideways linear thrusters (translation numpad 1 and 3). 361360 Now, in Target Intercept, set the TEj in Target Intercept to match TEj in Orbit Eject. This step is not really necessary, as we can eject when TEj in Target Intercept is 10k or less, but it helps make IMFD a tiny bit more accurate in the course planning. 361380 We'll time warp until a bit closer to our ejection point. 361942 Notice how EIn has changed since we set our two TEj's to match (those in the Target Intercept and Orbit Eject). Let's burn to correct that. 361983 Oops, wrong way. IMFD doesn't tell you to turn Orbit Normal or Orbit Anti-Normal, so you just have to guess. If EIn increases, cut off the engines and turn the other way. 362104 Now I have engaged the Autoburn for Orbit Eject. We'll time warp, then let Autoburn lower the time warp and do the burn for us. 363193 5 seconds until the burn. We will time warp at 10x through the duration of the burn. 363360 There's main engine cutoff. Let's time warp until we are away from Europa. 407700 Ok, time to set up the Map Program. Open it up ([MNU], Map button). 407710 Hit [TGT] and type in Callisto. 407720 Hit the [Cnt] button, and type p-Callisto. This will center our periapsis at Callisto. 407730 Now hit the [Int] button to turn on intercept mode. 407745 Now that we're out of Europa's sphere of influence (SOI), in Target Intercept, hit the [Src] button and type x. 407760 The dV value looks kinda high, let's see if it goes down with time (we'll time warp slowly and watch it). 407895 Note how it increased. Thus, we should Autoburn now, as it will not increase and then decrease. 407931 Now time warping until we are about halfway there, for our second midcourse correction. 563122 It's time for our second midcourse correction. I'll simply hit the [AB] button (autoburn) in the Target Intercept Program. 563156 dV is zero, now we're time warping until we get a bit nearer to Callisto. 578556 Ok, let's set up our base approach. Open the Base Approach Program in the right MFD in place of the Map Program. 578570 Set the reference (using the [REF] button) to Callisto, as this is the body we're approaching. 578580 Hit the [TGT] button and enter "PreludeII Callisto" without the quotations. If this doesn't work, in the previous release of the Prelude Packs, there was a typo in the base name, so try "PreludeII Callsito" without quotations. Note the spelling of Callisto in the latter example. 578590 Scroll down to the Re-Entry item and hit [+] until it says Orbit-Insert. 578599 Time warping until dV hits a minimum. 716577 dV has hit a minimum, we'll hit the Autoburn button in the Base Approach Program now. 716606 Now time warping until we're closer to Callisto. 749352 Let's do another Autoburn in the Base Approach Program to get dV back down to zero. 749384 Time warping until our third and final Base Approach Correction. 759078 The warning message has just been displayed in the Target Intercept Program, saying we are under the influence of Callisto. Open IMFD 4.2.1 in place of Target Intercept, and go to Orbit Insert ([MNU], course button, orbit insert). 759108 Now Autoburning--this will be our final base approach correction. 759125 dV is zero. Now, hit the [AB] button in the right MFD (the one with Orbit Insert), and we'll time warp until the autoburn slows down time and executes the burn. 763657 We'll finish the burn manually in Burn Vector View. Hit [PG] then [BV] to open this view. 763693 Welcome to Callisto Orbit! 763700 Open Map MFD in the left MFD screen and open Comm/Nav MFD in the right MFD screen. 763715 In Map MFD, target PreludeII Callisto and in the Comm/Nav MFD, set Nav1 to 131.60. 763730 Now we'll time warp until we get closet to landing. 769690 Now preparing to land. 770525 Now executing the deorbit burn. 770609 There's Main Engine Cutoff, we'll turn Prograde, then Level Horizon and descend towards the base. 770670 What a view of Jupiter! Go into the virtual cockpit for a really neat perspective. 770700 We're falling towards the surface, and I'm using numpad 1 and 3 in translation mode to get the Velocity Vector right under the nose, which is pointed directly at the base. Also, I just opened the retro covers. 770730 Retro Engines engaged. We're gonna overshoot the base, but we'll come back. 771000 Now open VOR/VTOL MFD in place of Map MFD, as we are picking up a VTOL signal. 771025 I'm now landing the ship. 771466 I'm centering the ship over the pad now. 771480 Gear down. 771560 We're centered over the pad, now landing. 771592 Touchdown! Welcome to PreludeII Callisto. 771601 This is Markl316, signing off. Enjoy your stay on Callisto.

IMFD Tutorial#4 — Moon to Earth

IMPORTANT: The following settings may be required in the XR2 configuration file in order for this playback to function properly:

• EnableAFCtrlPerformanceModifier=0
• Main Fuel ISP=5
• LOXConsumptionRate=-1
• Main Engine Thrust=1
• Hover Engine Thrust=1
• APUFuelBurnRate=2
 0 Press the button in the left MFD to stop the annoying beeps. 10 Open OrbitMFD on the right, and set your projection and dist. 30 On the left, open IMFD. 33 In IMFD, press , then select the Course program 36 Select Planet Approach 39 Press then set the source (SRC button) to "moon" 42 Press , then set the EqI to 30. Cape Canaveral is at just under 29 degrees north latitude. 45 Set the PeA to 500k. The course program is a bit inaccurate, so we'll set the PeA high. 48 Set the TEj to 6400. That's about how long it will take to reach our ejection point. 51 Set the GET under PeT to 143:30:00. See the manual in you docs folder to see how I got this number. 54 Press and select Surface Launch. 57 The Hed shows our launch heading. During ascent we want to get the EIn down to zero. 198 Takeoff, turn to heading of 58.06 degrees. Ascend to an ApA of 150k. 340 Open IMFD on the right and press 360 Press and enter 0 to set the opmode to shared 380 Select Orbit Eject program. Change "Higher Orbit" to "Course". Change "Realtime" to "Off Axis" 410 Since our ejection time is after our Apo, change back to OrbitMFD and wait to circularize the orbit 2945 NOTE Reopen IMFD on the right. Since we've changed our orbit we need to adjust our TEj. Adjust it to get the lowest Enroute dV. 6895 Using IMFD's AB to execute ejection burn. 6960 After the ejection burn is fully completed, change to IMFD's Map Program and set the reference to "earth". Press untill you see the configuration settings, and change the accuracy to 1. 27320 Open OrbitMFD on the left and change the reference to Earth. Then we wait until we enter Earth's SOI. The G number at the bottom will chang from red to yellow when it reaches .50. 378845 On the left, open IMFD and select Base Approach. 378875 Target "cape canaveral". 378905 Set the Ant to 90. The XR-2 has a much longer glidepath than an Apollo capsule. Leave the Alt and ReA as they are. 378935 Increment the HInt until it matches the PeT shown on IMFD's Map. You may have to change pages or modes on Map show PeT (not ReT). 379000 Using AB to correct course for Cape Canaveral direct ReEntry. 379020 After the burn is complete, orient prograde. We need to be EXACTLY prograde, so wait until the roll is complete. 379050 Since our PeA is to high, we'll use left translational RCS to lower it. If it was low, right translation would raise it 379070 Adjusting PeA to just under 70k. 379090 When I'm happy with my PeA, I'll switch the HUD to Surface Mode and fast forward to 20M alt. I'll also dump any remaining Main fuel (recording doesn't show this) 502406 Now we can open AerobrakeMFD on the right, and target "cape canaveral". Bring up SurfaceMFD on the left. 506425 Orienting for ReEntry. Roll inverted, eliminate slip, and set AOA to 40 to 45 degrees. 506545 At about 115k Alt, I'll close the retro doors and radiator. Set the COG to about .2 to the rear, and trim up. 506575 I use Killrot to provide roll and pitch dampening until I can get the ship stable. 506660 As my VS approaches zero I'll pitch down to maintain a slow descent rate. 506790 I'll raise my AOA to gain altitude. I want to get to about 70 km by the time I'm down to 7.5k V so I don't risk burning up when I transition to upright. 506950 At about 7.5k V I'll lower the AOA to zero and roll upright. I want about 70ms to 100 ms of negative verticle speed before I engage the Attitude Hold AP. 507000 Engaging Attitude hold AP at 42.5 degrees AOA 507020 From here it's a standard ReEntry. I'll adjust my AOA and bank according to AerobrakeMFD's map. 508017 Killing the AP, going to normal flight. I want to cross south of the runway at close to a right angle. 508075 I've just crossed the runway so I'll start my HAC turn. 508170 I'm a little under the glidepath, but I'm light enough to get away with it. 508396 Voila! Special thanks to Agentgonzo for the many hints.

IMFD Tutorial #5 — Earth to Mars

IMPORTANT: Since I used High Resolution KSC for this playback, depending on whether you have it installed or not, this flight might not start you on the runway. Don‘t worry, you will still get to Mars. IMPORTANT: The following settings may be required in the XR2 configuration file in order for this playback to function properly:

• EnableAFCtrlPerformanceModifier=0
• Main Fuel ISP=7
• Scram Fuel ISP=2
• LOXConsumptionRate=-1
• Main Engine Thrust=1
• Hover Engine Thrust=1
• APUFuelBurnRate=1

IMFD Tutorial #7 — Earth to Jupiter to Saturn

IMPORTANT: Since I used High Resolution KSC for this playback, depending on whether you have it installed or not, this flight might not start you on the runway. Don‘t worry, you will still get to Saturn. IMPORTANT: The following settings may be required in the XR2 configuration file in order for this playback to function properly:

• EnableAFCtrlPerformanceModifier=0
• Main Fuel ISP=7
• Scram Fuel ISP=2
• LOXConsumptionRate=-1
• Main Engine Thrust=1
• Hover Engine Thrust=1
• APUFuelBurnRate=1
 0 Welcome to IMFD Tutorial #7--Earth to Jupiter to Saturn!!! 10 This is a very complex flight, and may take several tries to get right on your own. 20 Since IMFD doesn't calculate slingshot windows, we'll use Voyager's launch window. 30 First we must set up a planar transfer to Jupiter, then the Slingshot Program will transfer us to a Saturn target. 45 Open IMFD in the left and right. 55 In the left MFD, go to the config page and change GET to MJD. 70 Now, in the left MFD, open Target Intercept 90 Set target to Jupiter. 97 Lock TOF, and change Off-Plane to Source Plane. 110 Set Adjust to 10x if it isn't already. 116 Highlight the MJD item under TEj. 125 Now adjust it to get the lowest possible dV on the bottom of the display screen. Use 1x for finer adjustment. You have until sim time = 160. 160 Ok, unlock TOF. Approximate values for this flight are: TEj=604.7k, MJD of TEj=42992.608, TIn=82.64M, and MJD of TIn=43942.167. 189 Time warping until launch time. 577826 5 minutes until takeoff. On the right, hit [MNU], then the shared item and input 0. Then, open Surface Launch on the right. 578115 T-10 seconds. Engaging APU and Aerosurfaces. 578125 Takeoff! 578191 We'll bank and yaw to keep EIn in the Surface Launch Program zero during the ascent. If you can already do this and do not need to see the ascent, come back in 11:40 or at sim time = 578900 (we'll stay in realtime). 578301 Ok, Mach 3, opening SCRAM doors. 578806 Scram doors closing. 578906 Main Engine Cutoff, turning off APU. 578915 Now, open Orbit Eject in the right MFD. Our orbit has a very low periapsis, but don't worry, we'll fix this later. 578925 Change Higher-Orbit to Course. Time warping to next node to change planes. 580686 We'll now eliminate EIn. 580732 Wrong way. Remember, IMFD does not tell you to turn Normal or Anti-Normal. 580799 Now turning prograde to fix orbit. 580860 Ok, orbit fixed. Now engaging Autoburn on the Orbit Eject MFD. 580874 Time warping until ejection point. 581729 Oops, let's close the radiator. 583000 5 seconds until the burn. We'll do it at 10x time warp since it's a very long burn. 583480 Ok, Autoburn has completed the burn. Time warping until outside Earth's SOI. 618595 Ok, we're out of Earth's SOI, so open the Map Program on the Right. 618605 Set Target to Jupiter. 618615 Set Center to p-Jupiter. 618625 Hit the Intercept item to turn on Intercept Mode. 618635 Now set Center to the Sun. 618645 Hit the [Dsp] and [Soi] buttons to turn on thier respective features. 618655 Now, in the Left MFD (Target Intercept), set Source to self by inputting x. 618665 Highlight the Prep. PlC and hit the [+] button ONCE. 618675 Engaging Autoburn in the left MFD, and time warping until plane change. 9179207 5 seconds until the Plane Change burn. 9179238 Good, dV is zero, time warping until we get closer to Jupiter. 51590300 Engaging Autoburn in Target Intercept to perform a midcourse correction. 51590322 Ok, dV is zero again. Time warping until we need another midcourse correction. 63599143 Time for another midcourse correction. Also, in the Map Program, set Center to self by hitting the cnt item and inputting x. 63599175 dV is zero. Time warping. 69357470 Another midcourse correction. 69357500 dV is zero again. Time warping. 77436314 We're near Jupiter's SOI. On the left, open Planet Approach, and set the reference to Jupiter if it is not. 77436330 Set Eqi to zero. It will say ~4.665 because it is the minimum EqI we can approach with, so anything less than that value inputted will result in ~4.665. 77436345 Set PeA to 1.8G. We want to give ourselves plenty of room for error. 77436355 Time warping to see if dV increases or decreases. 77437210 dV increases, so we'll engage autoburn immediately. 77437288 dV is zero. Time warping until inside Jupiter's SOI. 78084427 Ok, we're inside Jupiter's SOI. Open Target Intercept on the left, and target Saturn. 78084445 On the right, open Slingshot, and set the reference to Jupiter if it is not. 78084455 In Target Intercept, set Adj to 100x. 78084465 Now highlight the MJD item under TIn. 78084475 Make sure TOF is locked, and adjust it to minimize dV in Slingshot. You have until sim time = ...8084525. 78084525 dV in Slingshot should be approximately 1.225k. 78084535 Time warping to see if dV in slingshot increases or decreases. 78097830 dV is increasing, so we'll engage Autoburn immediately. 78097932 Ok, dV is zero. Time warping until our Jupiter periapsis. 80848659 We're at our periapsis, so I'm engaging the autoburn. 80848689 Ok, our burn is complete. Open up Map on the right. Time warping. 84969260 We're out of Jupiter's SOI. Now, in Target Intercept, set the source to self. 84969270 Time warping to see if dV increases or decreases. 85143315 dV is decresing, so we'll autoburn when it hits a minimum. 85143325 Wait, there's a small problem. 85143335 Look at our remaining LOX, and it's about 844 days. 85143345 Time to intercept is about 1000 days. 85143355 We'd better change that, or we'll die before reaching Saturn. 85143365 Unlock TOF, and set TIn to 64.8M, which will give us about 100 days in Saturn orbit to land at a moon. 85143384 Engaging Autoburn. It will do the burn in about a minute real time (sometimes Autoburn acts goofy like this). 90066466 Engines engaged. 90066603 Engine cutoff. Now set the map target to Saturn. Time warping. 95831990 Time for a midcourse correction burn. Engaging Autoburn. 95832018 Time warping at 100,000x until the next midcourse correction burn, which will occur at TIn=36.00M. 113936199 Autoburning for a midcourse correction. 113936222 Time warping at 100,000x until the next midcourse correction, which will occur at TIn=12.50M. 137436958 Autoburning for another midcourse correction. 137436975 Time warping until we get closer to Saturn. 142348531 There's our Oxygen Low warning. Hit CTRL-W to silence it. Time warping. 144690155 Ok, we're nearing Saturn. Open up Planet Approach in the Left MFD. 144690165 Set the reference to Saturn. 144690175 Set the EqI to zero. It will set itself to the Min EqI. 144690185 Now set PeA to 1G. 144690200 Time warping to see if dV will increase or decrease. 144703181 It increased. Engaging Autoburn. 144703219 Time warping. 148924737 Let's perform a correction burn in Planet Approach. Autoburning. 148924762 Time warping. 149694960 Now open up IMFD v4.2.1 in the left MFD, and open Orbit Insert. 149694975 Engaging autoburn in Orbit Insert (it will wait until we're at periapsis) and time warping. 149864377 We'll do the burn in 10x time warp since it's long. 149864873 Finishing the burn using Burn Vector View. 149864896 Welcome to Saturn Orbit!!!!! 149864900 Now you can set up a flight to Titan by yourself. This playback has gone long enough. 149864910 Congratulations on completing IMFD flight school. You are now hopefully very well versed in IMFD.

This is Markl316, signing off.