HOME | DD
Do-Mo β A universal lander - Ramus #1
#3d #3ds #chemical #future #lander #mini #model #orbiter #realistic #rocket #shuttle #small #space #spaceship #support #venus #rocketpunk
Published: 2019-08-11 18:31:32 +0000 UTC; Views: 3365; Favourites: 97; Downloads: 42
Redirect to original
Description
AKA Venerian orbiter redone...again...
Other image: Link
Old version: Link 1 , Link 2 , Link 3
Length: 42,5m
Height: 5,5m
Width: 41m
Dry mass: 50 tons
Full load: 535 tons
Crew: 3
Main engine: 2x Methane - Oxygen chemical rockets
Thrust: 10 MN
Fuel: Liquid Methane - LOX
Fuel supply: 480 tons
Mass flow:Β 2702 kg/s
Clean acceleration: 18,69 m/s
Clean Delta-v: 8,417 km/s
125t acceleration: 15,15 m/s
125t Delta-v: 4,807 km/s
250t acceleration: 12,74 m/s
250t Delta-v: 3,353 km/s
With Booster:
Thrust: 14,5 MN
Fuel: Liquid Methane - LOX
Fuel supply: 580 tons
Mass flow:Β 3918 kg/s
Clean acceleration: 22,66 m/s
Clean Delta-v: 8,758 km/s
125t acceleration: 18,95 m/s
125t Delta-v: 5,252 km/s
250t acceleration: 16,29 m/s
250t Delta-v: 3,902 km/s
Ramus, a Venerian universal lander, capable of atmospheric flight, landing on runways, as well as unassisted vertical landing and liftoff. This lander is usually carried by larger ships to enable cargo deliveries to any location. Its central cargo hold tends to carry mission specific extensions, commonly a booster for lifting of larger celestial bodies or a crew module for carrying passengers. The crew module in particular is popular on longer voyages, since it extends the living area of its mother ship. When doing cargo deliveries, once on location, the extension carried is extracted and replaced with cargo, then reinserted once the delivery is completed.
Additional use it provides come from radiators embedded inside its wings, which are capable of quickly dispersing waste heat this craft might accumulate, but can also be used to extend heat management capacities of its mother ship, something very useful for carrying sensitive cargo which requires specific temperatures. Another use for it is on science ships for maintaining temperature on their experiments.
Related content
Comments: 20
Wow! Very good ship!
I always liked the idea of such ships, when one ship carries cargo and an auxiliary ship. And Yes, I totally disagree with you that the Venus Orbiter is the ballast which pulls the ship along.
Let's understand.
1. The scheme of "flying wing" allows him to feel good about themselves in the dense layers of the atmosphere of Venus and Earth, and build on the sparse atmosphere of Mars. And the ability to land in an economical mode of fuel consumption and in any(where there is a suitable airfield) place - will greatly increase the demand for the ship. The buyer of goods does not need to pay for the delivery of goods, it is actually delivered to the door of his shop. I do not take into account the small costs of transportation from the local airport. It is also necessary to take into account the generous mode of transportation, as this is not a ballistic descent of the cargo.
2. The possibility of vertical landing allows you to use it as a deliverer to asteroids and planetoids with low gravity. As an example - the orbital ship can undock and independently fly to asteroids, delivering cargo, and then catch up with the mother ship. This will greatly save fuel, since it is easier to disperse a small ship than to slow down and again disperse a large(mother) ship.
3. The ability to deliver and pick up goods from ptanet in an opportunistic and cheap way. Sellers do not have to wait for local companies to give them time and worry about the price of delivery to orbit. The carrier does everything himself.
And I have several questions at once:
1. Top right is an orbital ship with an acceleration blog for space launch? Have you thought about making a ship with the possibility of refueling during the flight in the atmosphere? As an example: the ship takes off and gains altitude, and then meets with the tanker and replenishes itself. And after that, with full tanks, makes a leap into space?
2. At the bottom right. Everything okay with the tail? It didn't go to the side? Or is that the way it should be?
3. Will be shown a residential Mogul that fits in the cargo Bay of the Orbiter and fly into space? Loading/unloading you showed in A universal lander - Ramus #2 (thank you very MUCH for that!), now I want to see the residential module 
And of course thank you very much for your work! You do wonderful things!
π: 0 β©: 1
1. Don't forget about Titan as well
2. Yeah. For a while now, I've been thinking about making a vertical lander that could be carried by Solanum, but I also wanted to make the orbiter a bit more interesting and more useful, combining the roles into one made sense, as it also gives more use to the orbiter, since it's never just useless mass being hauled around, this way it can always be useful in some way.
Questions:
1. Top right is with the booster included, I added that to give it a bit more push when lifting cargo into space. For instance, without it, it wouldn't be able to carry any cargo when lifting of from Mars, but with it, it has just enough DeltaV to lift of from Mars with 125t cargo, and still keep enough fuel for maneuvers(docking).
I have thought about that, in several different forms. One idea was to have a ship with two different types of engines, one set of low trust, high specific impulse engines for interplanetary travel, and the other set of high trust, low specific impulse engines for landing and lift of. This ship would reach its target, detach from its interplanetary engines and fuel tanks, than land, deliver the cargo, lift itself back up and reconnect with the rest of the ship. That's one idea, something closer to what you had in mind might have already been done, in the form of Granum , that lands, then later on goes to refuel itself at the gas station .
2. Yes that's the way it should be. Those tail fins can slide a bit, and then reorient themselves to help with maneuvers once in orbit.
3. I wasn't really planing on doing anything much with the residential module, since it wouldn't look like much, just a blank cylinder, actually a lot like the booster module, just without the engines at the bottom. I may do something with it if I ever do a scene where the same residential module is attached to a Siligo or something like that, since it's the same size as 2 cargo boxes.
You're very welcome. I'm glad you like it, I've had this thing finished for several weeks now, and I kept staring at it since it felt like I should add something more to it, but never changed anything in the end, so here it is
π: 0 β©: 1
3. OK. The most important thing that you gave an approximate description of the residential module. That's enough.
Once again, thank you very much for your wonderful work and look forward to your next work!
π: 0 β©: 0
The top left one made me think this is some sort of fancy opener for prescription pills :<
Nice render, but wouldn't the engine exhausts bore right into those tube things coming off the cargo it's pulling? Perhaps they should be arranged vertically for space flight. I like the blocky design though, looks cool.
π: 0 β©: 1
Well that's an interesting way to look at it...
Oh that, yeah, I see why that part isn't very clear in this image. So, on the upper left, that isn't the cargo that's being pulled, that's the mother ship(part of it) that's pushing the thing, when separating, it would use small and very gentle thrusters to push itself away, and the actual cargo is held near the center. Here you can see the cargo Link and here you can see the older version of this lander, with the entire mother ship shown Link .
And thank you!
π: 0 β©: 0
Thank you!
I wasn't too trilled with it, but it seems people really like it
π: 0 β©: 1
Your Welcome and it looks awesome
π: 0 β©: 0
Well before you land, you need to fly first!
This would be something like a Space Shuttle Orbiter, with its own fuel supply, that's also capable of vertical landing...a big mess
π: 0 β©: 1
Nicely done.
Interesting radiator arrangement - I wonder, how the wing structural elements are arranged in this case.Β
π: 0 β©: 1
Yeah, when it comes to aerodynamics I'm guessing a lot more than usual...
I always liked the concept of this lander/orbiter, but was never a fan of how I did it, since it's mostly hauled as useless mass that's slowing everything down, so I really wanted to give it some more purpose, something to make it useful even when it's not landing/lifting. Radiators seemed like the best way to do it, sure it would need them to disperse waste heat from atmospheric flight, but they can also serve a purpose on the whole trip.
About the wing, I mostly went with how they did it on yf-23, without the flaps. The bottom part of the wing is clean an uniform, the gap from opening up is on top, where it matters less, and I think it could be pulled of. If done correctly, the gap would be tiny, maybe not even noticeable, and considering that we add stuff like that (by that I mean, stuff that also adds "gaps") on real world high performance planes, in the form of air brakes on top of the frame, it can be done. Considering my setting, this thing is never going to Earth, so it also doesn't need to be capable of handling that type of atmosphere, so that's also something to consider'...
π: 0 β©: 1
It's kinda blocky, yes. But anyway, Su-24s are flying just fine despite being dubbed as "Wardrobes".
But, why two canopies? Or it's arent them?
Wing can be a perfect fuel tank. And fuel mass can be a limited use heatsink as well - like the system, implemented in MiG-31s. But this is more into "aircraft" design pholosophy, than into pure "space" one.
So, wings have only contour frame type structural armature, while internal space occupied with the radiator and cover mechanisation? Makes sense, considering typical atmospheres (or their common absense) it designed to deal with. Due to obvious lack or the centroplane, it doesn't look like something, designed for high-energy aerodynamic maneuver, anyway.
And considering transatmospheric craft - a little update on the Spark-R
cdn.discordapp.com/attachmentsβ¦
cdn.discordapp.com/attachmentsβ¦
sun9-36.userapi.com/c858336/v8β¦
Also, I made a new translation, if you still interested.
π: 0 β©: 1
It had to be blocky to have enough internal volume for all the fuel, I was very careful about that, while leaving enough room for human movement.
I could make up a reason, but the real reason is that I liked it this way 
You got it, no tight maneuvers, not that it would need them anyway, it would likely land more like a glider.
Looks good, the arrow fits nicely on the hull, and pop-out weapons are almost always an interesting detail. But the internals look really really good, gives the thing a sense of scale, and makes it look a lot like a "hero ship" from a sci-fi tv show. A weird feeling to have the lounge on the same level as those missiles, with only a few meters distance, but I guess that's how it goes with so little space.
Just noticed you uploaded it, I'll give it a look. I actually checked your profile a couple of times since you mentioned you were going to design something, but no new updates on that front
π: 0 β©: 1
Actually, there are the ways to design big enough internal volumes, while retaining decent aerodynamic profile. Like in Tu-22M3, where you can stand and go around in the main fuel tank. But these methods are commonly kinda counter-intuitive.
I see. Both me and Artem kinda stumbled onto this wierd-looking detail. But points for style, I suppose.Β
Also, there's a strange and maybe a little insane way to use the fuel for heat control during reentry. By directly ejecting it onto craft's surface. Thing is, that burning fuel is typically colder, than reentry plasma. Tested on Buran, as far as i know.
Thanks. If you're speaking about the big volume in the center of the middle deck - it isn't a lounge. It's a quaterdeck - prep and assembly point for the EVA team. In the original (aerospace superiority frigate, not recon one) Spark layout, this volume is occupied by the main ordnance storage. Actual lounge - is near the cockpit on the upper deck. Also, a small lounge (without capability to convert it into operating room) is situated aftside of the quaterdeck in the secondary living area. And it is uncomfortably close to a possible 14 nukes indeed. Cost of conversion.
For the designs - I'm still struggling with the SketchUp. I have a project ready for implementation, but I keep stumbling onto technical difficulties over and over...
π: 0 β©: 1
There are of course, my focus on aerodynamics part was to have gentle lines coming from the font, the blockyness is on the sides and would only matter (I assume) for maneuverability, so not very much in this case. Tu-22M3 is an interesting example for comparison, since it has the same length as Ramus, and similar wingspan, dry mass is also very similar, the difference here is that Ramus has 12 time more fuel, with similar fuel density ( jet fuel has similar density to median of LOX & Liquid Methane), so, some blockyness had to be there. What I found interesting here is that, with an assumption that a sturdy airframe could be made with this mass, mathematically, this thing isn't too far away from a single stage to orbit, and by that I mean Earth orbit. It should be doable to actually make something like that with current day tech, and it wouldn't be much larger than a space shuttle...interesting to consider.
Yeah, the more I look at it, the more it looks like some retro style detail!
But yeah, not much logic behind it as it is.
That is an interesting way, it kind of uses fuel as an ablative armor in a way. Such a shame that Buran didn't get to shine some more...
Yeah, that's what I was referring to, I assumed that it's the same section that was shown in the last image (same shape and orientation on tables), and seeing them with cups in hands gave the feel of a lounge. Here's a question that doesn't seem to get answered in most sci fi...where are the bathrooms?
Don't know much about SketchUp, it always looked clunky to use, my general rule about how to deal with issues in 3D modeling is to brute force it, by that I mean, keep doing it until it works. Not an ideal advice, and probably one of the reasons I'm so slow with it.
π: 0 β©: 1
Actually, I have some inside info, that Tupolev bureau and Roscosmos have the ongoing SSTO vehicle project indeed. Involving something like a SABRE engines. it's a long shot, but eventually we'll see and hear something about it.
Frankly, Buran was more a failure, on the technical side. The best part of the system was an Energia rocket. Spiral project was much more promising.
It's not a tables, it's equipment lockers. Artem shown only the parts, integrated into the ship's structure - excluding furniture. Sanitation volumes (sink, shower and toilet in the single ~0.8x0.8x2.2 m volume) are located in the each quarter sepatately. Typical solution for an Alliance ships - due to generally smaller crews, tenebran's territorial instincts and wish to fill as much ship's volumes as possible with the mission systems.
Yeah, trying the same thing. And eventually, I'll make it draw the unilateral triangles...
π: 0 β©: 1
Buran had some interesting improvements over the Space Shuttle, it could land itself, and had jet thrusters to give it more control, and there were other improvements as well. Some Space Shuttle flaws also passed onto Buran, but I always felt the project could be developed much more than the Space Shuttle...Energia was also a major advantage. Still, no matter what, it's a terrible thing on how some of them ended up due to neglect.
Interesting. I usually go for the idea of a shared bathroom for spaceships, since it seems like a simpler solution, but the volume you mentioned really isn't much and could fit almost anywhere.
π: 0 β©: 1
I'd say, that Orbiter concept itself is flawed, begining with the Zilbervogel project - ad hoc solution for the goal, which clearly require something new. And considering its misimplementation... Let's say, it's another reason, why plutocratic scum belongs to the trash compactor. While still being alive, if possible.Β
Shared bathroom is simple to fit, yes. But if you have a goal to minimize the time of crew being at each other's throats - it's clearly not an option.Β
π: 0 β©: 0