Booster theory

Development areas for Allegiance core (IGC) design.
KGJV
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Post by KGJV »

Booster theory

Values in ICE translated in code values:

Code: Select all

Rate of consumption = fuelConsumption   = fuel consumption rate
Thrust amount       = maxThrust         = maximum thrust the booster can produce
% acceleration      = onRate            = delay after activation before the booster reaches full power
Release duration    = offRate           = delay after deactivation before the booster is completly off


Formulas:

Time in seconds to reach full boost power : 1 / onRate. So for instance an onRate of 0.5 (Booster1) gives a 2 seconds delay.
Time in seconds to complete booster shutdown : 1 / offRate. an offRate of 2 (Booster1) gives a 0.5 seconds delay.

Fuel consumption:

fuel used per second = power * fuelConsumption * maxThrust

power is a value between 0 (off) and 1 (full booster power). So when activating, power goes from 0 and reaches 1 after 1/onRate seconds.
It is incremented in a linear way so a Booster1 will have 0.5 power after 1 second and full power (1) after 2 seconds.

For Booster1:
fuelConsumption = 0.001111 (which is 1/900 btw)
maxThrust = 900
onRate = 0.5
offRate = 2

so at full boost trust (power = 1) , Booster1 consumes:

fuelUsed = 1 * 0.001111 * 900
which gives: 1

So Booster1 consumes 1 unit of fuel per seconds at full boost power.

nb: The amount of fuel a ship carries is the 'Fuel' property in ICE ship panel.

F4 informations:

the top speed displayed in F4 for boosters is as follow:

top speed = ShipMaxSpeed * (1 + maxThrust / ShipMaxThrust)
where ShipMaxSpeed and ShipMaxThrust are the corresponding properties in ICE ship panel ("Max Speed" and "Max Thrust")

duration = ShipCurrentFuel / fuelConsumption * maxThrust
where ShipCurrentFuel is the ship current fuel (= 'Fuel' ship property if full)

static_core (training mission 6): Ship = Advanced Fighter(488) having Max Speed = 120, Max Thrust = 900 and Fuel = 12
with Booster1 equipped the F4 line will display:
top speed = 120 * (1 + (900 / 900)) = 240 mps
duration = 12 / 0.001111 * 900 = 12 seconds

so the F4 line will display '240mps/12' for a Booster1 mounted in an Advanced Fighter(488) with static_core as core.
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Correct
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Post by Correct »

Okay let me just input some of my numbers.

For HvyBooster:
fuelConsumption = 0.0007
maxThrust = 1800
onRate = 1
offRate = 1

so at full boost thrust (power = 1) , HvyBooster consumes:

fuelUsed = 1 * 0.0007 * 1800
which gives: 1.26
Rix adv fig has 13.8 fuel
Readout say 11 seconds duration [10.95]

So that looks good.

top speed = 130 * (1 + (1800 / 1080)) = 346.66667 mps [347 on top speed]

And so does that.
Last edited by Correct on Tue Aug 05, 2008 1:16 pm, edited 1 time in total.
TakingArms wrote:QUOTE (TakingArms @ Aug 9 2009, 07:15 AM) it's interesting how politics turns ordinarily funny, kind-hearted people into vicious, hateful attack mongers. Except IB, he's just always that way.

People just take stuff too seriously I think. Except IB, of course.
Compellor
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Post by Compellor »

Thanks KGJV, that saves me the trouble of figuring it out myself! mrgreen.gif
Last edited by Compellor on Tue Aug 05, 2008 1:41 pm, edited 1 time in total.
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Correct
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Post by Correct »

Just want to check Booster 2 and 3.

For Booster 2:
fuelConsumption = 0.00088
maxThrust = 900
onRate = 0.5
offRate = 2

For Booster 3:
fuelConsumption = 0.00088
maxThrust = 1125
onRate = 0.5
offRate = 2

Both have 17 duration on a rix adv fig [13.8 fuel per slot]

B2 fuelUsed = 1 * 0.00088 * 900
which gives: 0.792
13.8/0.792=17.424242

B3 fuelUsed = 1 * 0.00088 * 1125
which gives: 0.99
13.8/0.99=13.9393939

Did I do something wrong?
Last edited by Correct on Tue Aug 05, 2008 1:53 pm, edited 1 time in total.
TakingArms wrote:QUOTE (TakingArms @ Aug 9 2009, 07:15 AM) it's interesting how politics turns ordinarily funny, kind-hearted people into vicious, hateful attack mongers. Except IB, he's just always that way.

People just take stuff too seriously I think. Except IB, of course.
Correct
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Post by Correct »

Hmmmm.

I just checked top speed on racecore.

Shuttle: 360*(1+(1000/900))=760 vs 693 Actual
Rocket: 288*(1+(2400/2000))=633.6 vs 576 Actual
Runner: 348*(1+(1250/1300))=682.6154 vs 627 Actual
TakingArms wrote:QUOTE (TakingArms @ Aug 9 2009, 07:15 AM) it's interesting how politics turns ordinarily funny, kind-hearted people into vicious, hateful attack mongers. Except IB, he's just always that way.

People just take stuff too seriously I think. Except IB, of course.
Andon
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Post by Andon »

The maximum speed of the booster does not take into account the amount of fuel that the ship has.

Is the 'Actual' the actual max speed you could achieve, or the actual max speed listed?
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KGJV
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Post by KGJV »

That is correct because me forget to add that the both ship max thrust and max speed must be multiplied by their corresponding faction modifier (Ship Accel and Ship Speed).

On race core I think both are 1.2
Last edited by KGJV on Tue Aug 05, 2008 3:53 pm, edited 1 time in total.
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Correct
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Post by Correct »

Andon wrote:
QUOTE (Andon @ Aug 5 2008, 08:44 AM) <{POST_SNAPBACK}>
The maximum speed of the booster does not take into account the amount of fuel that the ship has.

Is the 'Actual' the actual max speed you could achieve, or the actual max speed listed?


It doesn't? That's weird. Actual = Listed.


KGJV wrote:
QUOTE (KGJV @ Aug 5 2008, 08:52 AM) <{POST_SNAPBACK}>
That is correct because me forget to add that the both ship max thrust and max speed must be multiplied by their corresponding faction modifier (Ship Accel and Ship Speed).

On race core I think both are 1.2


I think that the bonus isn't even right.
TakingArms wrote:QUOTE (TakingArms @ Aug 9 2009, 07:15 AM) it's interesting how politics turns ordinarily funny, kind-hearted people into vicious, hateful attack mongers. Except IB, he's just always that way.

People just take stuff too seriously I think. Except IB, of course.
Correct
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Joined: Thu May 22, 2008 6:31 pm

Post by Correct »

I must have written the stats down wrong for the Rix fig, because the Dreg adv fig checks out perfectly, now to see what I did wrong with the Race core.

Ah. So only the Ship Thrust is affected by the GMs. Not the Booster. Doah.
Last edited by Correct on Tue Aug 05, 2008 8:48 pm, edited 1 time in total.
TakingArms wrote:QUOTE (TakingArms @ Aug 9 2009, 07:15 AM) it's interesting how politics turns ordinarily funny, kind-hearted people into vicious, hateful attack mongers. Except IB, he's just always that way.

People just take stuff too seriously I think. Except IB, of course.
zombywoof
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Post by zombywoof »

How is the current speed of a ship calculated?
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