Thread: Direct Electrical input Jump Drive

Has haven't done the math to figure out how much MW of power it takes to
initiate a jump 1 at a given TL?

--
If the world was fair then every bad thing that has ever happened to you
would have been deserved.

I have tried to figure this out myself. FF&S states that 30 (or was it 35%) of the jump drive volume is a HPGm which may store captured energy from the black globe.

--
Roger Malmstein
www.travellerfreeport.com

From: John Potter
Sent: Saturday, February 25, 2012 7:50 AM
To:
Subject: [Traveller_TNE] Direct Electrical input Jump Drive

Has haven't done the math to figure out how much MW of power it takes to initiate a jump 1 at a given TL?

--
If the world was fair then every bad thing that has ever happened to you would have been deserved.

I read this also however since fuel consumption is the resource used for
Jumping not Electricity I am looking for a MW = how much cubic meter of
fuel at a given tech level thing.

Also I think the HPGm is rated in Mj not MW which seem to not
be interchangeable unless we have a ratio for Mj <-> MW some where?

On Sat, Feb 25, 2012 at 1:48 AM, Roger Malmstein <
> wrote:

> **
>
>
> I have tried to figure this out myself. FF&S states that 30 (or was it
> 35%) of the jump drive volume is a HPGm which may store captured energy
> from the black globe.
>
> --
> Roger Malmstein
> www.travellerfreeport.com
>
> *From:* John Potter <>
> *Sent:* Saturday, February 25, 2012 7:50 AM
> *To:*
> *Subject:* [Traveller_TNE] Direct Electrical input Jump Drive
>
>
>
> Has haven't done the math to figure out how much MW of power it takes to
> initiate a jump 1 at a given TL?
>
> --
> If the world was fair then every bad thing that has ever happened to you
> would have been deserved.
>
>
>
>
>
>

--
If the world was fair then every bad thing that has ever happened to you
would have been deserved.

For TNE,

Basically Mw is given by the Mj required divided by 1800. Ie the Mj is
stored in the capacitors over a 30 minute period (1800 seconds)

The percentage of the jump drive which is the HPG bank is 35%.

Incidently this will produce the anomaly that higher tech vessels require
more energy not less to achieve jump due to the increasing efficiency of
higher tech HPGs and the fixed volume of the things for a given ship.

For example a TL9 100dt ship capable of jump-1 requires 2% of the volume
28m^3 for the jump drive thus 9.8m^3 of this is the HPG bank. This can hold
98Mj at TL9 but 122.5Mj at TL10 or 280Mj at TL15. Strictly speaking the size
of the drives should be reduced as TL increases. Instead a TL15 Jump-1 100dt
ship uses more than 2.8 times the energy of a TL9 version. Of course the
TL15 vessel should be much safer and ways could be found to justify higher
energy expenditure at higher tech levels.

Antony

From: []
On Behalf Of John Potter
Sent: Saturday, 25 February 2012 11:10 PM
To:
Subject: Re: [Traveller_TNE] Direct Electrical input Jump Drive

I read this also however since fuel consumption is the resource used for
Jumping not Electricity I am looking for a MW = how much cubic meter of fuel
at a given tech level thing.

Also I think the HPGm is rated in Mj not MW which seem to not be
interchangeable unless we have a ratio for Mj <-> MW some where?

On Sat, Feb 25, 2012 at 1:48 AM, Roger Malmstein
<> wrote:

I have tried to figure this out myself. FF&S states that 30 (or was it 35%)
of the jump drive volume is a HPGm which may store captured energy from the
black globe.

--
Roger Malmstein
www.travellerfreeport.com

From: John Potter <>

Sent: Saturday, February 25, 2012 7:50 AM

To:

Subject: [Traveller_TNE] Direct Electrical input Jump Drive

Has haven't done the math to figure out how much MW of power it takes to
initiate a jump 1 at a given TL?

--
If the world was fair then every bad thing that has ever happened to you
would have been deserved.

--
If the world was fair then every bad thing that has ever happened to you
would have been deserved.

_____

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1913 / Virus Database: 2114/4831 - Release Date: 02/25/12

Thanks Antony. I hadn't realized the HPG was part of J-Drive already.

I was envisioning a system like;

Power Plant -> HPG (stand alone) -> Jump Drive

- Power Plant output scales to increase/decrease HPG capacity charge rate
- HPG installed accounts for the Mj needed for the maximum jump
capability of the Jump Drive.
- Jump Drive size can stay the same size listed in FF&S for easy of ship
fitting.

This, unless I am off base, should provide an over all volume savings by
not requiring as vast of fuel storage by virtue of;

- Power Plant TL improvements seem to scale better than the Jump Drive.
- HPG TL improvements seem to scale better than the Jump Drive.
- Jump Drive charge time per the rules is 1d6 minutes

In my system the charge time is fixed based on the Electrical output of
Power Planet. So as long as the power plant can bring the HPG to
max capacitance for the maximum distance the Jump Drive is rated for, you
should save on interior space overall for the ship due to not needing the
raw fuel to be present. (Or is my understanding of TL 15 systems totally
off?)

Some volume would still be needed for fuel to expend on the Power Plant and
Sublight Drives in my outlined scenario.

In this way the Power Plant simply charges the HPG only when needed then
discharges into the Jump Drive which per your explanation seems to be doing
already but is an odd way because of the fixed % of the drive volume value

Where does the reference for the HPG in the Jump Drive come from? I would
like to read around it to see what else I might be missing that may be
there?

On Sat, Feb 25, 2012 at 9:48 AM, Antony Farrell <>wrote:

> **
>
>
> For TNE, ****
>
> Basically Mw is given by the Mj required divided by 1800. Ie the Mj is
> stored in the capacitors over a 30 minute period (1800 seconds)****
>
> The percentage of the jump drive which is the HPG bank is 35%.****
>
> Incidently this will produce the anomaly that higher tech vessels require
> more energy not less to achieve jump due to the increasing efficiency of
> higher tech HPGs and the fixed volume of the things for a given ship.****
>
> For example a TL9 100dt ship capable of jump-1 requires 2% of the volume
> 28m^3 for the jump drive thus 9.8m^3 of this is the HPG bank. This can hold
> 98Mj at TL9 but 122.5Mj at TL10 or 280Mj at TL15. Strictly speaking the
> size of the drives should be reduced as TL increases. Instead a TL15 Jump-1
> 100dt ship uses more than 2.8 times the energy of a TL9 version. Of course
> the TL15 vessel should be much safer and ways could be found to justify
> higher energy expenditure at higher tech levels.****
>
> ** **
>
> Antony****
>
> ** **
>
> *From:* [
> ] *On Behalf Of *John Potter
> *Sent:* Saturday, 25 February 2012 11:10 PM
> *To:*
> *Subject:* Re: [Traveller_TNE] Direct Electrical input Jump Drive****
>
> ** **
>
>
>
> I read this also however since fuel consumption is the resource used for
> Jumping not Electricity I am looking for a MW = how much cubic meter of
> fuel at a given tech level thing.****
>
> ** **
>
> Also I think the HPGm is rated in Mj not MW which seem to not
> be interchangeable unless we have a ratio for Mj <-> MW some where? ****
>
> On Sat, Feb 25, 2012 at 1:48 AM, Roger Malmstein <
> > wrote:****
>
> ****
>
> I have tried to figure this out myself. FF&S states that 30 (or was it
> 35%) of the jump drive volume is a HPGm which may store captured energy
> from the black globe.****
>
> ****
>
> --
> Roger Malmstein
> www.travellerfreeport.com ****
>
> ****
>
> *From:* John Potter <> ****
>
> *Sent:* Saturday, February 25, 2012 7:50 AM****
>
> *To:* ****
>
> *Subject:* [Traveller_TNE] Direct Electrical input Jump Drive****
>
> ****
>
> ****
>
> Has haven't done the math to figure out how much MW of power it takes to
> initiate a jump 1 at a given TL? ****
>
> ****
>
> --
> If the world was fair then every bad thing that has ever happened to you
> would have been deserved.****
>
>
> ****
>
>
>
> ****
>
> ** **
>
> --
> If the world was fair then every bad thing that has ever happened to you
> would have been deserved.****
>
>
>
>
> ****
>
> ****
> ------------------------------
>
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2114/4831 - Release Date: 02/25/12*
> ***
>
>
>

--
If the world was fair then every bad thing that has ever happened to you
would have been deserved.

On 25 Feb 2012 at 7:09, John Potter wrote:

> I read this also however since fuelconsumptionis the resource used
> for Jumping not Electricity I am looking for a MW = how much cubic
> meter of fuel at a given tech level thing. Also I think the HPGm is
> rated in Mj not MW which seem to not beinterchangeable unless we
> have a ratio for Mj <-> MW some where?

Joules are energy. Watts are power (energy per unit time)

A 1 MW plant produces 1 Mj per second.

Or to put it another way, 1 Mj is 1 MW-sec.

To use more "familiar" terms, one kilowatt-hour (what they charge you
for on your electric bill is however many kW-hrs) is 3600 kW-sec, or
3.6 MW-sec or 3.6 Mj

--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com