Hybrid Motors

[Herpderpsslerps]

I've been messing around with a Hybrid Motor of sorts.

I've used the RT-10 solid boosters model for this as I have no modeling software.

The current stats that I've been playing with.

// --- standard part parameters ---

mass = 3

dragModelType = default

maximum_drag = 0.3

minimum_drag = 0.2

angularDrag = 2

crashTolerance = 7

maxTemp = 3600

// --- liquid engine parameters ---

maxThrust = 500

minThrust = 50

heatProduction = 550

fuelConsumption = 15

// thrustVectoringCapable = True

// gymbalRange = 10

So far my biggest issue is balancing the thrust to heat production. As you can tell it is fairly powerful and like a true hybrid (well for the Kerbal's at least) can't be fully shut down as there is no means to relight the engine. I've also been toying with the idea of whether or not if these should be steerable like a liquid engine or should share the thrust vectoring values of the solid boosters.

Any ideas, people willing to try modeling one of these or help of any sort would be nice.

The Test vehicle is a 750 unit tank and the motor under the command module, all tests on this motor will be done using this set up.

[CarolRawley]

Try my gel thruster hybrid to get an idea of heat management. I wanted mine dangerous, so If there is no attempt to manage heat(extra parts to spread heat/custom parts such as radiators), it will overheat in about a minute.

[Herpderpsslerps]

Thank you. I saw your gel engine after I started work on mine. The major difference's are going to be the models from the looks of it. I do plan on trying to keep mine more 'stable' by kerbal standards.

[CarolRawley]

okey-dokey.

[Herpderpsslerps]

Do you have any experience reskining? I could use some help as I'm about as new to this as you can find.

[CarolRawley]

no experience reskinning. I'd find a mod part that someone else has made, that you like the look of. Then just change the Config(Make sure you don't just copy+paste your Config), and in the author section, put the original owner and you in. That's what I do.

And remember to ask permission of the owner of the original part before you publish it.

[Herpderpsslerps]

That is what I was planning originally.

[CarolRawley]

okey-dokey.

[Herpderpsslerps]

I've got three versions of this hybrid so far.

the standard

// --- standard part parameters ---

mass = 3

dragModelType = default

maximum_drag = 0.3

minimum_drag = 0.2

angularDrag = 2

crashTolerance = 7

maxTemp = 4000

// --- liquid engine parameters ---

maxThrust = 250

minThrust = 50

heatProduction = 750

fuelConsumption = 15

Jebs special

So named because this thing blows up even with cooling put into place.

// --- standard part parameters ---

mass = 3

dragModelType = default

maximum_drag = 0.3

minimum_drag = 0.2

angularDrag = 2

crashTolerance = 7

maxTemp = 4000

// --- liquid engine parameters ---

maxThrust = 600

minThrust = 50

heatProduction = 1500

fuelConsumption = 20

And the HDS Rocket Emporiums fix of Jeb's engine, won't overheat as fast but burns fuel faster and is heavier.

// --- standard part parameters ---

mass = 4

dragModelType = default

maximum_drag = 0.3

minimum_drag = 0.2

angularDrag = 2

crashTolerance = 7

maxTemp = 8000

// --- liquid engine parameters ---

maxThrust = 800

minThrust = 50

heatProduction = 1500

fuelConsumption = 35

[Herpderpsslerps]

Not happy with the minute plus burn times I was getting I got these down to around 30 to forty seconds a piece. The only exception is the booster I'm working on, if I can get approval from its modeler to use it'll burn longer and have much more thrust. Thrust. I've also nerfed the thrust for Jebs and the fix for Jebs to be more inline, the fix has less thrust, doesn't over heat as easily. Jebs still over heats like a bastard though and all of them require massive cooling efforts to be able to stay at full thrust for the entirety of their burn.