OHM Jarvis Heavy Launch Vehicle 2.75

[Urwumpe]

I don't know about anyone else but I like to have the different options I can build my own rocket suitable for the mission. Its fun planning these things and playing with the options.

Yes, but it must not be three kinds of similar rocket engines as option.

Different upper stages might be nicer, like having one that is sophisticated and which can fly to GSO with multiple burns, and one very simple, that does only a single burn to reach GTO, but is then also very mass effective and optimized for the mission. Then maybe have the simpler option with higher numbers of engines, which increases dry mass a bit but could then permit missions with shorter burn phases.

 

[garyw]

It's easy enough to edit the ini file and add things like Kulches upperstages or you can design and upload your own Urwumpe.

 

[Urwumpe]

It's easy enough to edit the ini file and add things like Kulches upperstages or you can design and upload your own Urwumpe.

Sure, since I am capable of it. But I won't advocate it for everyone. :lol:

 

[MaverickSawyer]

My choice for the RL-10 is for commonality with the second stage (that has four of them). This must be a cheap rocket. And even the RL-10-B-2 has high performances (ISP of 462 sec!)

OK, that's reasonable. Using what you have already is sound.

Thanks for your positive comments on the concept.

No problem.

 

[K_Jameson]

Stage characteristics:
Gross mass: 16,190 kg
Empty mass: 2,340 kg
Fuel mass: 13,850 kg
Fuel: Lox/LH2
Engine: 1x RL-10-B-2
Thrust: 110.000 kN
Isp: 462 sec
Burn time: 571 sec

The expected performances of the Jarvis L-C with this stage are: a GTO payload of 12,100 kg and a GEO payload of 7,000 kg.

 

[K_Jameson]

The new upper stage and the DPCS (Dual-Payload Carrying System) at work with demonstrative payload. The concept is the same of the "Sylda" system used in the Ariane launcher.
The Jarvis L-C, now renamed Jarvis C, is finished, and the updated package is ready for the upload.

 

[garyw]

I was hoping you'd go for the Sydla system as it probably makes the most sense and it looks pretty good.

Awesome work. :thumbup:

 

[Cras]

This looks great! Can't wait to try it out.

 

[K_Jameson]

2.6 is available. :thumbup:

 

[Pipcard]

The Capo Passero link leads to the Aurora page.

 

[K_Jameson]

Fixed. thanks!

 

[Pipcard]

Also, wasn't the fairing supposed to have a smaller diameter?

 

[K_Jameson]

Yes, but later i preferred the standard diameter fairing, only slightly longer for the accomodation of the third stage.

 

[Pipcard]

How are you supposed to launch the two satellites into GSO? I
-launch into a parking orbit
-burn near the equator until it reaches a GTO
-do a plane change burn near the apoapsis and near the equator on the map

but I don't have enough fuel to circularize the orbit once I go back to the apoapsis.

Are you supposed to use the satellites' linear rcs to complete the orbit circularization?

 

[boogabooga]

Try to combine the plane change and apogee kick into one burn, perhaps?

 

[Pipcard]

Which would be half-way between prograde and orbit-normal/antinormal?

 

[K_Jameson]

Are you supposed to use the satellites' linear rcs to complete the orbit circularization?

Yes, like in the reality. :tiphat:

 

[Cras]

Which would be half-way between prograde and orbit-normal/antinormal?

It may not be exactly halfway, but that is the general idea.

 

[James200809]

does anyone know how to disable the auto pilot for this?i try to launch it my self & about 5 seconds after launch it auto pilot takes over its really starting to be annoying please post a reply to witch keys i press

 

[K_Jameson]

You have two options:
1: press "P" immediately after the launch and take control
2: launch one of the scenarios of the "Quicklaunch" folder.

And... 3: read the doc. :tiphat: