snrdg082102
SOC-14 1K
Morning all,
I'm having a bad time trying to build the missiles TNE FF&S Mk I Mod page 153 using Book 3 Chapter 9 Munitions pages 135-146 and Book 2 Chapter 9 Sub-light (Maneuver) Drives pages 69-71.
The columns from the missile table which pertain to Book 3 Chapter 9 munitions design are needed to check the d the munitions design TL, Guidance, Yield, G-Turns, and Range. The mass column and the volume note below the table are helpful since they set the final mass and volume requirements.
The Communicator (Comm) column I think is for the launcher and does not pertain to the missile.
The Sensor column lists the any active and/or passive systems installed besides the warhead, guidance, and propellant.
I've selected the TL 11 space missile that from the table has the following
specifications: Guidance system: Controlled, 100 kiloton warhead, mass of 7 tonnes, volume 7 m^3, a maximum acceleration of 12 G for 1 G-turn or 1 G of acceleration for 12 G-turns, the warhead's damage range is less
than 30,000 km, and a laser receiver for the 300,000 km laser communicator of the launcher.
Book 3 Chapter 9 Munitions design process pages 135-146
Warheads pages 135-144
A. Specify Warhead Type
Special Warheads page 144 nuclear-pumped x-ray laser which is composed of (1) 100 kiloton nuclear device, (2) an array of x-ray lasing rods, (3) a short range tracker, (4) a receiver for the launcher's 300,000 km laser communicator, and (5) a small battery pack.
(1) Nuclear Device.
Is the "nuclear device" from the nuclear warhead table on page 143?
I have not been able to figure out the nuclear warheads mass and volume which leads to the question.
How are the mass and volume of the nuclear and collapsing nuclear warheads determined?
(2) An array of x-ray lasing rods
Can the array of x-ray lasing rods be created using Book 3 Chapter 8 Lasers?
(3) Short range tracker
Is the short range tracker a HRT or PEMS?
Is the range of Zero hexes on the missile table for the tracker?
Is the range of Zero hexes equal to 3,000, 300, or 0.3?
(5) Small battery pack
Does the battery pack supply the tracker?
How long does the battery last?
Why isn't there a listing for power on the table is a battery is installed?
Does the warhead's battery supply power to additional sensors installed?
B. Warhead TL = 11
C. Warhead Diameter, D. DV, E. Burst, F. Pen, G. Mass, H. Volume, and I. Price are skipped since the nuclear-pumped x-ray laser table and notes has already taken care of them.
Guidance pages 144-145: Controlled
Is the guidance system included in the nuclear-pumped x-ray laser warhead table?
Is the controlled guidance system the command guided guidance system described on page 144?
If yes, is the command guided system using a TL 5 manual operating and the TL 8+ laser communicator link?
Propellant: C. Space Missiles page 146
2. Install Thruster: Select a thruster from those available in the Book 2 Sub-light Drive chapter (Section 9). Most space missiles use Electrothermal Augmented Plasma Combustion (EAPlaC) solid-fuel thrusters. Determine the total thrust of the rocket in tonnes. This is set by the designer based on the missile's mission requirements.
EAPlaC questions:
In Book 3 Chapter 1 page 92 there is a cartridge case describes as being electrothermal chemical. The cartridge ignites the propellant by using an electric pulse.
Is electrothermal augmentation similar to the electrothermal chemical system used in small arms design?
If electrothermal augmentation is the similar what is the systems power requirement?
On the thruster table EAPlac Column 3 Thrust has a dash and Column 5 MaxT has 100**. The double asterisks (**) indicate that 100 is the minimum thrust that the thruster can produce.
Can an EAPlaC thruster produce less than 100 tonnes of thrust?
Determine the total thrust of the thruster in tonnes questions.
Book 2 Chapter 9 Sub-light (Maneuver) Drives page 69 for simplicity uses formula: hull displacement tons x 10 tonnes of thrust accelerates the object 10 1 G.
The space missile has a displacement of 0.5 tons x 10 = 5 tonnes of thrust are needed to accelerate the missile to 1 G. The TL 11 missile is designed to accelerate to 12 G one time. The missile requires 0.5 x 10 x 12 = 5 x 12 = 60 tonnes of thrust.
As a cross check once the final mass of the missile is known by using the formula: Final Mass in tonnes / Displacement tons. If the formula returns a value greater than 15 the required thrust is re-calculated using mass. The space missiles have a mass of 7 tonnes / 0.5 displacement tons = 14. Simplicity wins the day. The TL space missile's EAPlaC thruster is required to provide 60-tons of thrust.
3. Install Fuel: Determine the total fuel volume of the rocket. SRF fuel has a volume of 1 cubic meter per tonne.
I am being the sounding board for another forum member who is trying to update the achieved TNE/T4 Rb-98r4 design spreadsheet and this is where the wheels come off for me.
Using the Sub-light drive design sequence page 70 I have not figured out how to determine the EAPlaC's fuel requirements, which has led to questioning the calculations for the non-solid rocket fuel thrusters.
If someone, on the forum or off the forum, could explain how to calculate the fuel I would be grateful.
According to the person I'm working with Step 3 above states that an EAPlaC SFR thruster producing 60 tonnes of thrust has a fuel volume of 60 x 1 = 60 m^3.
Is the result of SFR thrust in tonnes 60 x 1 = 60 m^3 the correct interpretation?
If the answer is yes, why doesn't Book 2 Chapter 9 page say the same thing?
The details on page 70 for self-contained thrusters indicates that these systems have auxiliary generators which provide electrical power for other
systems.
Does the EAPlaC thruster have an auxiliary generator?
If yes, does the generator provide power to the added sensors and run the warhead's short range tracker?
Hopefully someone here can answer my questions?
I'm having a bad time trying to build the missiles TNE FF&S Mk I Mod page 153 using Book 3 Chapter 9 Munitions pages 135-146 and Book 2 Chapter 9 Sub-light (Maneuver) Drives pages 69-71.
The columns from the missile table which pertain to Book 3 Chapter 9 munitions design are needed to check the d the munitions design TL, Guidance, Yield, G-Turns, and Range. The mass column and the volume note below the table are helpful since they set the final mass and volume requirements.
The Communicator (Comm) column I think is for the launcher and does not pertain to the missile.
The Sensor column lists the any active and/or passive systems installed besides the warhead, guidance, and propellant.
I've selected the TL 11 space missile that from the table has the following
specifications: Guidance system: Controlled, 100 kiloton warhead, mass of 7 tonnes, volume 7 m^3, a maximum acceleration of 12 G for 1 G-turn or 1 G of acceleration for 12 G-turns, the warhead's damage range is less
than 30,000 km, and a laser receiver for the 300,000 km laser communicator of the launcher.
Book 3 Chapter 9 Munitions design process pages 135-146
Warheads pages 135-144
A. Specify Warhead Type
Special Warheads page 144 nuclear-pumped x-ray laser which is composed of (1) 100 kiloton nuclear device, (2) an array of x-ray lasing rods, (3) a short range tracker, (4) a receiver for the launcher's 300,000 km laser communicator, and (5) a small battery pack.
(1) Nuclear Device.
Is the "nuclear device" from the nuclear warhead table on page 143?
I have not been able to figure out the nuclear warheads mass and volume which leads to the question.
How are the mass and volume of the nuclear and collapsing nuclear warheads determined?
(2) An array of x-ray lasing rods
Can the array of x-ray lasing rods be created using Book 3 Chapter 8 Lasers?
(3) Short range tracker
Is the short range tracker a HRT or PEMS?
Is the range of Zero hexes on the missile table for the tracker?
Is the range of Zero hexes equal to 3,000, 300, or 0.3?
(5) Small battery pack
Does the battery pack supply the tracker?
How long does the battery last?
Why isn't there a listing for power on the table is a battery is installed?
Does the warhead's battery supply power to additional sensors installed?
B. Warhead TL = 11
C. Warhead Diameter, D. DV, E. Burst, F. Pen, G. Mass, H. Volume, and I. Price are skipped since the nuclear-pumped x-ray laser table and notes has already taken care of them.
Guidance pages 144-145: Controlled
Is the guidance system included in the nuclear-pumped x-ray laser warhead table?
Is the controlled guidance system the command guided guidance system described on page 144?
If yes, is the command guided system using a TL 5 manual operating and the TL 8+ laser communicator link?
Propellant: C. Space Missiles page 146
2. Install Thruster: Select a thruster from those available in the Book 2 Sub-light Drive chapter (Section 9). Most space missiles use Electrothermal Augmented Plasma Combustion (EAPlaC) solid-fuel thrusters. Determine the total thrust of the rocket in tonnes. This is set by the designer based on the missile's mission requirements.
EAPlaC questions:
In Book 3 Chapter 1 page 92 there is a cartridge case describes as being electrothermal chemical. The cartridge ignites the propellant by using an electric pulse.
Is electrothermal augmentation similar to the electrothermal chemical system used in small arms design?
If electrothermal augmentation is the similar what is the systems power requirement?
On the thruster table EAPlac Column 3 Thrust has a dash and Column 5 MaxT has 100**. The double asterisks (**) indicate that 100 is the minimum thrust that the thruster can produce.
Can an EAPlaC thruster produce less than 100 tonnes of thrust?
Determine the total thrust of the thruster in tonnes questions.
Book 2 Chapter 9 Sub-light (Maneuver) Drives page 69 for simplicity uses formula: hull displacement tons x 10 tonnes of thrust accelerates the object 10 1 G.
The space missile has a displacement of 0.5 tons x 10 = 5 tonnes of thrust are needed to accelerate the missile to 1 G. The TL 11 missile is designed to accelerate to 12 G one time. The missile requires 0.5 x 10 x 12 = 5 x 12 = 60 tonnes of thrust.
As a cross check once the final mass of the missile is known by using the formula: Final Mass in tonnes / Displacement tons. If the formula returns a value greater than 15 the required thrust is re-calculated using mass. The space missiles have a mass of 7 tonnes / 0.5 displacement tons = 14. Simplicity wins the day. The TL space missile's EAPlaC thruster is required to provide 60-tons of thrust.
3. Install Fuel: Determine the total fuel volume of the rocket. SRF fuel has a volume of 1 cubic meter per tonne.
I am being the sounding board for another forum member who is trying to update the achieved TNE/T4 Rb-98r4 design spreadsheet and this is where the wheels come off for me.
Using the Sub-light drive design sequence page 70 I have not figured out how to determine the EAPlaC's fuel requirements, which has led to questioning the calculations for the non-solid rocket fuel thrusters.
If someone, on the forum or off the forum, could explain how to calculate the fuel I would be grateful.
According to the person I'm working with Step 3 above states that an EAPlaC SFR thruster producing 60 tonnes of thrust has a fuel volume of 60 x 1 = 60 m^3.
Is the result of SFR thrust in tonnes 60 x 1 = 60 m^3 the correct interpretation?
If the answer is yes, why doesn't Book 2 Chapter 9 page say the same thing?
The details on page 70 for self-contained thrusters indicates that these systems have auxiliary generators which provide electrical power for other
systems.
Does the EAPlaC thruster have an auxiliary generator?
If yes, does the generator provide power to the added sensors and run the warhead's short range tracker?
Hopefully someone here can answer my questions?
