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SgtLongcoat

MuraLeo Inc. Launch History

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Launch Time: 11:27 AM, May 15, 2017

Members Present: Jonathan Mura, Kenny Sorlie, Sam Papaleo

Flight Log:

  • Ground: Activated Solid Fuel Thrusters
  • Released Radial Stability Enhancers
  • t=0:33, released solid fuel thrusters
  • t=0:36, reached 10 km
  • t=1:20, turned off liquid thrusters
  • t=1:52, rotated to 15o above horizon
  • t=2:22, full thrusters
  • t=2:41, reached 50 km
  • t=5:17, turned to 0o, full throtle
  • t=5:19, detached liquid fuel thrusters, entered final stage
  • t=5:53, stable orbit, 92 km Periapsis, 94 km Apoapsis
  • t=7:00, Valentina EVA
  • t=7:40, Valentina returns to ship
  • t=23:53, Maneuvered to burn retrograde and reenter atmosphere
  • t=24:24, Full thrusters
  • t=24:50, Turned off thrusters
  • t=28:10, entered atmosphere
  • t=28:27, High thrusters to counteract burn up in atmosphere
  • t=28:40, Entered surface altitude
  • t=29:05, Last of fuel used
  • t=29:40, Activated Parachute
  • t=29:50, Parachute burned up
  • t=29:56, Crash landing, Valentina dead

Memorial: Valentina was a brave kerbal, who wanted nothing more than to go where no other kerbal has gone before. Even in her final moments, the in-flight cameras caught her with a giant grin on her face, knowing that her death would be the base for even greater space operations. While she will be missed, we at Muraleo Inc refuse to let her death put an end to the dreams which Valentina stood for, and will continue to send fearless kerbals where dreams of greatness come true.

Flight Summary: The majority of the flight went off without a hitch. Our biggest concerns stem from reentry into the atmosphere, and ensuring that we have enough fuel to counteract gravity as we decrease altitude. In addition, it may be beneficial to keep the flight in low orbit, so as to reduce the change in velocity during reentry.

Future Strategy: For our next flight, we will be adding more parachutes with a greater speed tolerance, as well as several radially mounted solid fuel thrusters in order to slow down the flight on reentry, assuming it is falling too quickly when the liquid fuel runs out. Our hope is that this will keep our pilot intact long enough for us to treat any injuries accrued over the flight.

Ending Funds: $100,000 (Starting) - $26,774 (Rocket) - $2,677 (Tax) = $70,549 (Final)

 

 

"The Traveller Mk 3"

Launch Time: 11:02

Team Present: Jonathan Mura, Kenny Sorlie

Flight Log:

  • t=0:00, Stage 1 solid fuel boosters active
  • t=0:24, Solids decoupled, Stage 2 liquid fuel at 50%
  • t=0:50, 10 km
  • t=1:35, Thrusters cut
  • t=1:46, Maneuvered to 5o above horizontal
  • t=2:00, 50 km
  • t=2:48, Full Thrust
  • t=3:15, Decoupled Stage 2, Stage 3 liquid at 100%
  • t=4:24, Cut thrusters, Stable orbit @ ~80 km
  • t=4:47, Bill EVA
  • t=4:54, Bill reenters vehicle
  • t=27:53, Maneuvered to burn retrograde
  • t=28:04, Full thrusters to exit orbit
  • t=28:35, Cut thrusters to conserve fuel
  • t=31:00, Entered atmosphere
  • t=31:35, Full thrusters to prevent overheat on reentry
  • t=31:53, Jettisoned Stage 3
  • t=32:18, Activated first set of emergency solid thrusters
  • t=32:26, Drogue chutes deployed
  • t=34:46, Deployed main parachute
  • t=35:00, Deployed second set of emergency thrusters & crash landed. Bill survived
 
Photographs:
screenshot11.thumb.png.671dac88fb7e07873a4b4a19a68cc9c7.pngscreenshot12.pngscreenshot13.thumb.png.32cc0dab7991b350e4c4f1e45e1e0dd7.pngscreenshot14.thumb.png.42f62f419a1cf4da7dd77eab4bfb912f.png
 
Total Flight Time: 35:00
 
Summary: Launch and height gain were successful and went without a hitch. Once at a suitable height, we chose 80km, stage 2 was used along with stage 3 to achieve orbit. This orbit was at the same altitude, with a 4km deviation from 80km altitude (82-78). Once over land, the 3rd stage was used to exit orbit back into the atmosphere, where a use of some thrust allowed the ship not to burn up in the atmosphere. Once stage 3 was out of fuel, it was jettisoned and just the pod with it's emergency thrusters and parachutes remained. The pod continued to fall for a while before the first set of "slow down" thrusters were activated, slowing the pod down to a speed where drouge chutes could be used. These slowed the pod down to 25 m/s until very close to the ground, where the main parachute was deployed. The chute was deployed a bit late and wasn't going to open before impact, so the final set of emergency thrusters were used to slow the crash landing. This was successful, and the pod survived the landing, with Bill (somehow) unharmed.
 
Learnings: The emergency thrusters were absolutely a good idea, and used alongside drogue chutes, they can make the absolute safest method of landing a ship after a fast re-entry.
 
Project Timeline: Our next project will likely be to get a small satellite into a stable orbit, as that won't be too difficult and let us learn a bit more about the different parts of the game. 
 
Milestone Awards Presented: 
  • Launch to 10 km - $10,000
  • Manned launch to 10 km - $20,000
  • Manned launch to 50 km - $30,000
  • Achieving stable orbit - $40,000
  • Achieving stable manned orbit - $50,000
  • First Kerbal EVA - $60,000
 
Available funds: $70,549 (Starting) - $22,152 (Ship) - $2,215 (Tax) = $46,182 (Final)

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I would also highly recommend looking a bit more deeply into how to use parachutes / separate the command module from the rest of the rocket.  Additional fuel / rockets should not be required for safe re-entry.

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"Hyperion" Satellite Pre-Flight

Available Funds: $256,182

Vehicle Name: Hyperion

Vehicle Parts List:

  • 2 Rockomax Jumbo-64 Fuel Tank ($5750)
  • 1 Rockomax X-200-16 Fuel Tank ($1550)
  • 2 S1-SRB-KD25K "Kickback" Booster ($2700)
  • 1 RE-M3 "Mainsail" Liquid Fuel Engine ($13000)
  • 1 RE-I5 "Skipper" Liquid Fuel Engine ($5300)
  • 8 RV-105 RCS Thruster Block ($620)
  • 2 Stratus-V Roundified Monopropellant Tank ($200)
  • 1 FL-R25 RCS Fuel Tank ($600)
  • 1 RC-001S Remote Guidance Unit ($2250)
  • 1 Z-1k Rechargeable Battery Bank ($880)
  • 2 Gigantor XL Solar Array ($3000)
  • 1 Communatron 88-88 ($1100)
  • 1 TR-18A Stack Decoupler ($400)
  • 1 AE-FF2 Airstream Protective Shell (2.5m) ($854)
  • 1 Rockomax Brand Decoupler ($550)
  • 1 Advance Reaction Wheel Module Large ($2100)
  • 2 Advanced Nose Cone - Type B ($320)
  • 4 AV-R8 Winglet ($640)
  • 4 AV-T1 Winglet ($500)
  • 8 EAS-4 Strut connector ($42)
  • 2 TT-38K Radial Decoupler ($600)

(Some cost in image due to change in shape of capsule holding satellite)screenshot15.thumb.png.1bb073cef1ba62bc3f3df33aaecb7ca7.png

Design Goals: Rocket designed to exit atmosphere and enter Low-Kerbin Orbit. The second stage will then be used to conduct a Hohmann Transfer to enter Keosynchronous orbit, and remaining fuel used to fine tune Periapsis and Apoapsis. In a real-life scenario, would function as a comm. satellite. 

Launch Goals: Our hope for this launch is to get our satellite into geosynchronous orbit with kerbin, accomplishing the first two satellite milestones. After this, our next goal will either be to setup a space station, or reach the mun.

Pilot Plan: Use the solid fuel thrusters and large liquid thruster to exit atmosphere. Detach solids once fuel runs out. Use large liquid thruster to get rocket into eastward low-kerbin orbit (70,000+ m), and use remaining fuel to extend the orbit further out. Detach large liquid fuel thruster, switching to the small liquid fuel thruster. Using small liquid fuel thruster, conduct a Hohmann Transfer by burning prograde at the periapsis until apoapsis is at ~2,863,333 m, then cut thrusters and wait until rocket hits apoapsis. At apoapsis, burn prograde until periapsis is at ~2,863,333 m. Use liquid fuel & manually controlled RCS thrusters (detach liquid fuel once out) to fine tune orbit. Solar panels and antenna set to extend with light key.

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"Hyperion" Satellite Post-Flight

Launch Time: 11:11 AM, 5/18/17

Team Present: Jonathan Mura, Kenny Sorlie (Sam Papaleo present for start of launch)

Flight Log:

  • t=4 - First stage thrusters at max
  • t=21 - Turned off liquid thruster
  • t=1:07 - Ejected solid boosters and aimed towards the east
  • t=1:20 - Full liquid thrusters
  • t=1:51 - Turned off liquid thrusters
  • t=2:45 - Full thrusters at 15o above the horizontal
  • t=3:10 - Levelled to 0o prograde
  • t=3:41 - Cut thrusters until apoapsis reached
  • t=4:19 - Full thrusters at apoapsis
  • t=4:37 - cut thrusters - low orbit achieved
  • t=32:13 - Maneuvered to burn prograde at periapsis (Begin Hohmann Transfer)
  • t=33:06 - Full thrust at periapsis
  • t=33:45 - Released empty fuel, full thrust with small liquid thruster
  • t=34:40 - Maneuvereed to retrograde to decrease apoapsis
  • t=35:47 Released capsule surrounding satellite. Satellite still attached to rocket. Extended instruments
  • t=1:55:30 Maneuvered to burn prograde
  • t=1:57:06 Full thrust at apoapsis
  • t=1:57:30 Cut thrusters
  • t=2:29:06 Burned fuel full thrust for ~.5s at periapsis. Apoapsis overshoots by several thousand meters
  • t=2:29:24 Burned retrograde for ~3s
  • t=4:51:40 Burned retrograde at the apoapsis until the periapsis reached 2,866 km
  • t=1d 1:51:22 Burned retrograde at periapsis until apoapsis reached 2,866 km
  • t=1d 2:50:46 Used RCS thrusters at apoapsis to reduce periapsis to 2,863 km
  • t=1d 5:48:23 Used RCS thrusters at periapsis to reduce apoapsis to 2,863 km. Keosynchronous orbit achieved

Photographs:

screenshot16.thumb.png.c9731d19e0f7d271e9ca16bdd4d30cb8.pngscreenshot17.thumb.png.b94a4b438ee0863a1a59d288f613fb94.pngscreenshot18.thumb.png.2b90e658d6a09a7884b5eb30bfa6eaae.png

Total Flight Time: Still in orbit

Summary: Overall, a successful mission. While our expert pilot did make a few mistakes that extended our total flight time by a few in-game hours, the flight went off without a hitch. There were no explosions, everything operated smoothly, and there's still enough fuel on the Hyperion to make adjustments should the need arise. We achieved two milestones on this launch: First working satellite placed in stable orbit - $80,000, and First working satellite placed in geosynchronous orbit - $100,000.

Learnings: It is relatively simple, and not very costly to get an object into orbit. It should be extremely simple to force an object into orbit in such a way that we make quick contact with the mun.

Strategies: Our next goal is to either put up a manned space station, or to get a kerbal to the mun. If we put up the space station first, that could create a very simple stopping point mid-flight to refuel and store crew to prevent excessive death in case of catastrophe.

Milestone Awards Presented: First working satellite placed in orbit - $80,000; First working satellite placed in geosynchronous orbit - $100,000.

Final Funds: $256,182 (Starting Funds) - $63,580 (Rocket) - $6,358 (Tax) + $80,000 (First Satellite in Orbit) + $100,000 (First Satellite in Geosynchronous Orbit) = $366,244

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Very well done!!!

 

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