Wet Navy Rules

[shield]

Has anyone tried building a TL11+ submarine with a gravitic drive system using the MT wet navy rules in Challenge.

How is the grav propulusion system supposed to work?

Cheers
Richard

 

[shield]

Has anyone tried building a TL11+ submarine with a gravitic drive system using the MT wet navy rules in Challenge.

How is the grav propulusion system supposed to work?

Cheers
Richard

 

[shield]

Has anyone tried building a TL11+ submarine with a gravitic drive system using the MT wet navy rules in Challenge.

How is the grav propulusion system supposed to work?

Cheers
Richard

 

[kaladorn]

The grav propulsion system presumably operates on thruster plates. As far as such a vehicle as concerned, the difference between flying through the air in a gravity well and 'flying' through water (or on top of it) is probably strictly a matter of resistance and related manouverability issues.

Or did you have a more specific question in mind? There is at least one other MT boat-geek aboard here somewhere... though he may be hasn't checked in for a bit....

 

[kaladorn]

The grav propulsion system presumably operates on thruster plates. As far as such a vehicle as concerned, the difference between flying through the air in a gravity well and 'flying' through water (or on top of it) is probably strictly a matter of resistance and related manouverability issues.

Or did you have a more specific question in mind? There is at least one other MT boat-geek aboard here somewhere... though he may be hasn't checked in for a bit....

 

[kaladorn]

The grav propulsion system presumably operates on thruster plates. As far as such a vehicle as concerned, the difference between flying through the air in a gravity well and 'flying' through water (or on top of it) is probably strictly a matter of resistance and related manouverability issues.

Or did you have a more specific question in mind? There is at least one other MT boat-geek aboard here somewhere... though he may be hasn't checked in for a bit....

 

[shield]

The rules work out the power needed to get a specific hull up to your defined top speed. Now for non grav thrust, there is an efficieny rating to workout how big your engine & power plant has to be.

But for grav thrusters, this produces a thrust based drive. How much thrust do you need given that you have worked out the power required (based on hull form and top speed)?

Cheers
Richard

 

[shield]

The rules work out the power needed to get a specific hull up to your defined top speed. Now for non grav thrust, there is an efficieny rating to workout how big your engine & power plant has to be.

But for grav thrusters, this produces a thrust based drive. How much thrust do you need given that you have worked out the power required (based on hull form and top speed)?

Cheers
Richard

 

[shield]

The rules work out the power needed to get a specific hull up to your defined top speed. Now for non grav thrust, there is an efficieny rating to workout how big your engine & power plant has to be.

But for grav thrusters, this produces a thrust based drive. How much thrust do you need given that you have worked out the power required (based on hull form and top speed)?

Cheers
Richard

 

[kaladorn]

Ah, a more specific question! If I have time this weekend, I'll take a look at the problem.

Are the thrust and power measured in the same units? (default guess would be no).

 

[kaladorn]

Ah, a more specific question! If I have time this weekend, I'll take a look at the problem.

Are the thrust and power measured in the same units? (default guess would be no).

 

[kaladorn]

Ah, a more specific question! If I have time this weekend, I'll take a look at the problem.

Are the thrust and power measured in the same units? (default guess would be no).

 

[shield]

Kaladorn

the formula has power in KW or MW whislt grav thrust is in tonnes.

I could use the grav acceleration formulas but zipping through the air is not anything like pushing a sub through water.

Many thanks for the help

Cheers
Richard

 

[shield]

Kaladorn

the formula has power in KW or MW whislt grav thrust is in tonnes.

I could use the grav acceleration formulas but zipping through the air is not anything like pushing a sub through water.

Many thanks for the help

Cheers
Richard

 

[shield]

Kaladorn

the formula has power in KW or MW whislt grav thrust is in tonnes.

I could use the grav acceleration formulas but zipping through the air is not anything like pushing a sub through water.

Many thanks for the help

Cheers
Richard

 

[kaladorn]

Part of the problem is the answer probably depends on the speed you are trying to push through water at, the cross section of the hull, the amount of mass trying to do the pushing (at least that pertains for sailing ships) and the amount of thrust doing the pushing.

Hmmm. Good question. I'll have to look at this problem if I get time this weekend.

 

[kaladorn]

Part of the problem is the answer probably depends on the speed you are trying to push through water at, the cross section of the hull, the amount of mass trying to do the pushing (at least that pertains for sailing ships) and the amount of thrust doing the pushing.

Hmmm. Good question. I'll have to look at this problem if I get time this weekend.

 

[kaladorn]

Part of the problem is the answer probably depends on the speed you are trying to push through water at, the cross section of the hull, the amount of mass trying to do the pushing (at least that pertains for sailing ships) and the amount of thrust doing the pushing.

Hmmm. Good question. I'll have to look at this problem if I get time this weekend.

 

[shield]

Kaladorn

Did you have time to look at the grav-thrust problem?

Cheers
Richard

 

[shield]

Kaladorn

Did you have time to look at the grav-thrust problem?

Cheers
Richard