Azimech

Sorry, wrong topic. There's a topic specific for electro-motors over here: This topic is for turboprop/turboshaft engines or derivatives.

Yes, they have quite the learning curve. If you need help, send me PM.

Writing "Sariban" makes him sound like an evil wizard. Which is, of course, true.

KerbalX user Bad Battery has an airplane in the shape of the USS Excelsior. He expressed his wish that it could be turned into an SSTO. So I did. Due to the drag it's not a very good SSTO, just enough juice to get it to LKO. Parts: 272 - almost 1/10th of my scale 1:6 Excelsior. Mass: 212t. It's got 14 Rapiers.

I could try again with them clipped. That's a neat idea! Unfortunately that increases the drag and rotating mass with a huge amount. Not only that, I'm pretty sure landing gear don't add their mass to their parent part - in other words they expand with high revs. Other news: Azi-30 Taranis has a new turbine shaft. Gone are the vibrations, the heli is now 4 tons lighter and it shows: climb rate went up from 3 to 4m/s. Unfortunately I had to ditch the Wheesley since it's now blocked. Replaced with two Juno's in the back.

Ahem. I've discovered I had KJR installed. This means the bearing and/or engine in the previous post is less powerful than 4500kN. It's more like 2500kN. Still impressive though.

Interesting stuff for anyone in need of a smooth, gigantic bearing that can almost carry a building.

The Vapula RS (Reduced Size). Cuts the length of the Vapula almost in half, has a stronger bearing (aft bearing has 12 elements instead of 8) and can't carry its own fuel. It's also a lot more draggy though. Perfect for VTOLs but less ideal for airplanes. And this is the Vapula MRS (More Reduced Size). This is an interesting one. What you see in the central shaft are two LY-60's rotated 180 degrees and lined up with the shaft. Due to the mass offset - which might still be solved - the shaft gets a dynamic unbalance around its central point. The result is massive power loss but it still outputs a reasonably stable 950kN at 25 rad/s. Above that speed the values can go as high as 1250kN but jump all over the place. At this moment the construction is best for low speed applications but here comes the good news. I've discovered I can do a test of its capabilities. First I let it run to max speed and then suddenly I change the prop pitch to max. While the shaft is slowing down I can get a very short glimpse of what kind of thrust it can withstand. And I've seen values of 4500kN! So if you're in need of a gigantic bearing for low speed applications like building a mining dump truck, this is what you'll have to build.

77I- Helicarrier Type 1 Yesterday I started work on a new type of engine. Today I have a helicarrier. Someone expressed his need for a tiltrotor engine for his massive, very heavy cargo plane. So I started work and surprisingly fast I had one running. This engine has 6 blowers producing 111kN static thrust. The propeller/rotor produces a whopping 1720kN! The next logical step was something like this. Taking off: Best done at 90% throttle. I could add even more air intakes but part count is already high. Hover is done at ~80% throttle.That throttle setting is also the best to start the forward propulsion. There are four Goliaths at your disposal (action groups 2 and 3). Don’t start all four of them at the same time. Cruise: either use the docking ports on the deck and radial out (there are multiple angles) or fly normally. I discovered Pilot Assistant doesn’t understand this craft - it can hold pitch and climb rate but a heading or bank makes it go all over the place. Landing: do it gently at max 2m/s. This big baby can land and take off from water but you have to minimize forward motion and keep it as level as possible. Out of fuel: make sure you have enough forward motion and/or altitude. Pitch down to pick up/maintain speed and pull up just above the ground like a normal airplane. At low fuel it starts to become tail heavy. Transfer fuel to compensate. When balanced it also becomes quite agile :-) Specs: Engines: Vapula version 1; 6x Wheesley blowers, rotor output 1720kN. Max gross weight: 588t, fuel tanks full, 58830 units of fuel - not recommended. Standard weight: 484t, 38010 units of fuel. Fuel tanks empty: 294t. Top speed: ~100m/s with 9000 units of fuel remaining. Endurance: 1-1.5 hours. Ceiling: 5500m. Mods: none. Part count: 688. Built in: KSP 1.3.1. craft file here

The helicarrier is online guys & gals! Specs: Engines: Vapula version 1; 6x Wheesley blowers, rotor output 1720kN. Max gross weight: 588t, fuel tanks full, 58830 units of fuel - not recommended. Standard weight: 484t, 38010 units of fuel. Fuel tanks empty: 294t. Top speed: ~100m/s with 9000 units of fuel remaining. Endurance: 1-1.5 hours. Ceiling: 5500m. Mods: none. Part count: 688. craft file here

Pretty good! I think it's almost finished. Until now no funny things like RUDs. Specs: Mass: 474t. Part count: 658. Forward speed: >90m/s. With 9000 units fuel remaining: 100m/s. With enough forward speed, it almost handles like a Cessna :-)

Cool! I'll take a look. Meanwhile ... Is this phase one of a helicarrier?

I think we have something.

This ... is my newest engine. Huge isn't? Someone needs an engine for a tilt-rotor. A big cargo plane. So I decided to build one. As you can see, 28t for just an engine is a lot. But look at this: The engine has 6 blowers, putting out 111kN each. Now take a look at the lift of that single propeller blade. Multiply by 5. Yes. By far the strongest engine I've ever built, 1720kN! But ... it has to fly as well. And so I've made this weird thing. That top speed isn't terrific, but not bad either. Are there problems? Yes. For the first time ever I need to balance an engine. And that's not easy. Seconds from disaster? I think not. Edit: did someone just mention a helicarrier?

@EpicSpaceTroll139 No DLC parts? If not I'll take a look.

I could experiment with that. At the moment I'm using steel plates slightly offset. Well, at least this thing flies. Not very reliable compared to most of my other craft but hey, it's a new engine.

Uhm ... I wrote that in my previous post, you might have missed that ;-)

As we saw earlier the law of conservation of misery still applies yet again: the CoM of the large & very large landing gear is offset from its collider mesh. This means I'll have to balance it. At first I thought of using an RCS ball but apparently it adds its mass to the part it's connected to. This explains why they won't expand at higher revs. So the only way to balance this is to use a part which expands - this means I can only balance the engine for one particular speed. Using double the amount of landing gear to cancel the forces out doesn't work: they hate to be in the same bearing. Oh well.

User @Avera9eJoe wants to build a gigantic Osprey-like cargo plane. I've started designing a totally new engine about and hour ago and good news: using different bearing materials I now have a test engine running using 6 Wheesley blowers running at 111kN. The propeller has a static thrust output of 1710 kN!

I must admit, suspensions have improved since v1.0.

This kind of setup is something we did in the old days (KSP 1.0). It has since fallen out of grace due to vibrations and reliability issues.

Updated the Azi32 Gorgon with a new turbine shaft and several modifications to the airframe. Top speed has increased from 167m/s to 189m/s (unmodified aero). craft file here

Very ingenious, @EpicSpaceTroll139, I love it! Unfortunately I don't have answers yet about the claw, did little testing with it. Maybe it could be used for something more mundane as well: a driveshaft for a vehicle :-) By the way, @klond, remember the limit of 7rad/s some of our contraptions had? I've discovered this to be the case when an RCS ball is the root part of a decoupled assembly.

Interesting, but I'm still not sure what I'm looking at.

You might want to switch to Imgur.com, to prevent the blonde from screenshot.net showing up in a topic about suction.