JadeOfMaar

Orbit Portal Showroom [Show me your OPT Spaceplanes!]

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Hi Guys

Evolution of my suborbital stratolauncher. Now he is carrying a VTOL Lunar plane.

It's an OPT J VTOL. With more than  10000DV in orbit, he is able for non atmospheric planet (maximum G= Lunar G) and able to join Earth orbit and land like a SSTO.

146T fully loaded,  OPT lab and an empty cargo Hold for the time

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Here is the OPT K Stratolauncher, 216T on take off with 80% Liquidfuel in tanks.. 1 central OPT Starwaster J61- 2m50 and 2 side J61 - 1m875.

Here are both planes: Hybrid J 60D from Lunar VTOL will help during atmospheric ascent . They will be fed only by Liquidfuel from Stratolauncher

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Test mission

3+2 engines for take off from Kourou

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Take off at the end of the runway at 150m/s, but he can leave ground between 100 et 120

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climb accélération

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Goal is to reach more than mach 6 between 12 and 22000m

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looking at critical temperature on the lower right HUD. The pilot play with angle of attack and vertical speed to avoid critical temp while accelerating.

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After 26000m, around Mach 7,  Apoapsis, périapsis, temperatures increase very quickly!. You have to increase apoapsis at maximum possible but keep the periapsis negative to stay in suborbital!

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Looking the pics, I realize we didn't maximum thrust!

Engines are shut before they get no air, to avoid positive periapsis

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Apoapsis397kms, but it's going to decrease during climb. We perform VTOL Check lists

VTOL: -Open solar panel

- Arm VTOL engine in case we need them during decouping

- Open all Liquidfuel tanks that were shut to avoid feeding the engine during climb

- toggle CloseCycle mod for main engines

Then  VTOL is decoupled 2mn before l'apoapsis, and he lights engines to circularize.

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Launching in orbit during suborbital flight, you don't need FMRS mod!. It's very easy. Now, stratolauncher has begun its descent to atmosphere

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We get enough fuel and as we are a little bit far from Kourou we can another small orbital jump

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That's done and we begin to climb again

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Now we are on the best trajectory to Kourou

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Descending through 54000m north of Central America coasts

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in sight of South America coasts

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now it's just a piece of cake

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Longue final, 50mns after take off

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landed

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While the VTOL is gliding above earth

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Presenting: the beta: a plane that builds planes. primary purpose: to be strapped to a very unelegant-looking mothership and then to be sent to dres, where it will build a base. secondary purpose: one way trip to the mun/minmus to build a base or a mining rig to fuel the ship. tertiary purpose: LKO/MKO cargo delivery.

here is the picture, unequipped with RCS

The beta is a part of project helios, where each SSTO will be better than the last, hopefully culminating in the perfect SSTO. it is powered by 3 nebula engines, 8 S.C.O.O.P rockets, and witchcraft. the Beta also carries 1.7 thousand units of rocket parts, enough to build a small miner.

ascent profile

the beta usually lifts off at 150 M/s, and at 175 m/s it pitches up to 70 degrees until 6 km. from there, it slowly pitches down to 30 degrees (by 9 km) and will pitch to 10 degrees at 20 KM. the S.C.O.O.P engines are turned off then the nebula engines flame out, and then the beta circularizes.

 

also this is my first OPM ssto that can reasonably get off the runway :P

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@AstralWither You don't have much in the way of Yaw control (unless I'm missing something).  How is the sideslip?  Nice, practical-looking craft by the way.

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Posted (edited)

Hi Guys

After the OPT stratolauncher, here is the SSTO ThunderCarrier built like my bestseller models: 593T able to lift my VTOL shuttle of 146T to a 600kms orbit with 6500DV left to carry it far further in the solar system

Inside the Hold is a satellite equipped with all ScanSat and squad stuff to analyse and draw maps of any planet or moon.

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The ThunderCarrier is equipped with 4 Atmospheric J-61 Starwaster and 4 Hybrid Screamjet J-60D. 

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Design has been thought to avoid any pitch up or pitch down momentum when carrying the Shuttle in the whole flight enveloppe, including space when only Hybid J-60D are running. Thank's to RCSBuildAid

As for the Stratolauncher the Hybrid J-60D engines of the Shuttle are running during launch to help for the stability and the TWR in the whole flight enveloppe that has been tested with CorrectCol

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The Shuttle is undock safely  using VTOL

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All maneuvers can be executed without RCS but are very long. A lot of big RCS Vernor engines help for that and also to maintain Radial attitude during Re-entry for efficient aerobreaking

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Flying to the runway is a piece of cake with Atmospheric Autopilot which is a manual fly-by-wire

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The ThunderCarrier is strong and the design seems good. The proof is that during my first flight a mistake happens after having undocked the shuttle. The shuttle hit very quickly the tail of the ThunderCarrier, destroying the left part.

Despite this I managed to fly the ThunderCarrier to re-entry and landing

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As you can see the left part of the tail is missing

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But the SSTO is still maneuvering quite well

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And land on the Runway 09 at Kourou, very short landing with the help of to repackable chutes, stopping before the buildings

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Here are my 3 OPT

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Edited by gilflo

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The KING of SSTO's with VTOL amphibious capabilities and FAR compatibility is here

 

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I don't even know where to start with this stuff...I've never had much trouble building SSTOs or anything but the parts seem to be tough to fit together.  It's definitely just me lol

Edited by bombogenesis

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My one intentional (or it it?) 2.7x SSTO since JNSQ was released. It has no flashy name and is simply called "A Freight," an Avatar class cargo plane with nearly only legacy parts in it, but also Kerbal Foundries wheels.

Its wings hold no fuel and are mounted high (something I normally don't do) enabling some impressive stability during reentry glide, without compromising its handling in every other situation. Its payload rating is 30 tons but its displayed payload may weigh less than that. Those fuel tanks (in 3rd screnshot) do not hold stock fuels.

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@JadeOfMaar For some reason I am unable to "like" anything on the forum, so just know that I like that craft :P.  Why 2.7x scale, by the way?

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6 hours ago, kraden said:

@JadeOfMaar For some reason I am unable to "like" anything on the forum, so just know that I like that craft :P.  Why 2.7x scale, by the way?

For some reason...

Why 2.7x scale? Because it's 1/4 real scale (and not merely a multiple of the size of stock scale); Because I've joined in with the many players who are extremely dissatisfied with stock scale; Because I particularly enjoy the challenge and the thrill of building and flying a spaceplane that can go faster than Mach 6 and that there's more atmosphere to run through (and use, whether for acceleration or smoother aerobraking) at those higher velocities-- where scramjet engines become practical in KSP. :)

And I'm glad you like it.

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Yeah, I ended up finding that after my post :P

I get the dissatisfaction with stock.  I have two versions of ksp, one with GPP at 2.5x for that very reason, and the other is RO with RP-1 because I hate myself and my computer apparently. 

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33 minutes ago, kraden said:

RO with RP-1 because I hate myself and my computer apparently. 

LOL!

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