Engines

<br /><h2 class="western"><font face="Times New Roman, serif">Engines</font></h2>
<p class="western">Now that we know the mass of our ship, it's
finally time to determine its propulsion. Each type and size of
engine is rated to have a specific thrust and fuel capacity. Your
ship's hull size determines the maximum number of engines it can
support. You don't have to have to fill all your engine slots if that
number of engines is not needed to achieve the performance you
desire. And regardless of hull size and engine type, the maximum
acceleration of any ship is 6g.</p>
<p style="margin-bottom: 0in; line-height: 100%"><br />
</p>
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<p class="western" align="center"><strong>Hull Size</strong></p>
</td>
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<p class="western" align="center"><strong>Max Engines</strong></p>
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<p class="western" align="center">1</p>
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<p class="western" align="center">1</p>
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<p class="western" align="center">2-4</p>
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<p class="western" align="center">2</p>
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<p class="western" align="center">5-8</p>
</td>
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<p class="western" align="center">4</p>
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<p class="western" align="center">9-12</p>
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<p class="western" align="center">6</p>
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<p class="western" align="center">12+</p>
</td>
<td width="94" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">8</p>
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<p class="western"><br />Engine thrust is given as an arbitrary thrust
rating that has been scaled to work with the mass of the ship as
given in tons. To determine the maximum acceleration of your ship,
add up the thrust ratings of all your engines and divide that by the
total mass of your ship in tons. The resulting number is the maximum
acceleration of your ship in multiples of one standard gravity (10
m/s/s). Round all fractions down to the nearest tenth of a g. (<font color="#ff0000">Add
in a ½ A engine for fighters/shuttles</font>)</p>
<h3 class="western">Chemical Engines</h3>
<p class="western">These engines use a high efficiency chemical fuel
that burns and is expelled out the engine nozzle to provide thrust.
These engines are relatively cheap and easy to produce. While very
powerful, because of the large volume of fuel needed, these engines
have limited capability in regards to how long the engines can
operate on a single fuel load. These engines are typically used for
ground-to-space shuttles and system ships.</p>
<h3 class="western">Ion Engines</h3>
<p class="western">Ion engines work by ionizing hydrogen and
accelerating the resulting protons and electrons to high velocity and
expelling them out the back of the engine to provide thrust. Each
engine contains a small nuclear reactor to provide the power needed
to ionize the hydrogen and accelerate the particles to the
relativistic speeds needed to generate thrust. This reactor uses the
same atomic fuel pellet as an atomic engine but only needs to be
replaced once every 10 years. The initial fuel pellet is included in
the cost of the engine.</p>
<p class="western">While not as powerful as chemical or atomic
engines, Ion engine fuel is relatively cheap and if a ship is
properly equipped, can be harvested from any gas giant for free.
</p>
<p class="western">Because of the nature of the engine, ships with
ion engines cannot land or take off from planets.</p>
<h3 class="western">Atomic Engines</h3>
<p class="western">An Atomic engine is a supercharged version of the
chemical engine and uses the same fuel. The engine works by
generating a quantum field that temporarily increases the momentum of
particles by a factor of hundreds. These temporarily super-massive
particle are ejected out of the back of the engine to generate the
thrust for the ship. Because each particle is effectively much more
massive, less fuel is needed to achieve the same thrust and instead
of a single fuel load lasting for only few minutes of thrust, it can
last for days and allow the ship to accelerate to Void jump speeds.</p>
<p class="western">However, generating this field requires a huge
amount of energy (which is transferred to the particles) during
operation. To provide this power, each engine contains its own
nuclear reactor, similar in design to the reactor in the ion engine.
However, the large power requirement of the atomic engine means that
it consumes one atomic fuel pellet after only 10,000 minutes of full
thrust operations (about 8.5 days) instead of the 10 year life span
for the atomic fuel pellet in an ion engine.</p>
<p class="western">In addition, atomic engines require an overhaul
every few jumps, again depending on the size of the engines. This
overhaul is necessary to make sure that the quantum field generators
are properly aligned and positioned to only affect the fuel and not
the body of the engine itself. The number of trips that a ship can
go between overhauls depends on the size of the engine and is give in
the table with the fuel costs below.</p>
<h3 class="western">Engine Costs</h3>
<p class="western">The following table gives the cost and thrust
values for each of the different types and sizes of engines.
Determine the number, size, and type of engines your ship will use
and then record the engines chosen for your ship.
</p>
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<p class="western"><br />
</p>
</td>
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<p class="western" align="center"><strong>Class A</strong></p>
</td>
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<p class="western" align="center"><strong>Class B</strong></p>
</td>
<td colspan="2" width="184" style="border: 1px solid #000001; padding: 0.04in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Class C</strong></p>
</td>
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<p class="western"><strong>Engine Type</strong></p>
</td>
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<p class="western" align="center"><strong>Thrust</strong></p>
</td>
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<p class="western" align="center"><strong>Cost</strong></p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Thrust</strong></p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Cost</strong></p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Thrust</strong></p>
</td>
<td width="89" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Cost</strong></p>
</td>
</tr>
<tr valign="top">
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western">Chemical</p>
</td>
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">6,250</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">50,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">20,000</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">175,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">80,000</p>
</td>
<td width="89" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">770,000</p>
</td>
</tr>
<tr valign="top">
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western">Ion</p>
</td>
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">3,000</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">100,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">10,000</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">400,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">40,000</p>
</td>
<td width="89" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">2,000,000</p>
</td>
</tr>
<tr valign="top">
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western">Atomic</p>
</td>
<td width="88" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">6,250</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">250,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">20,000</p>
</td>
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">1,100,000</p>
</td>
<td colspan="2" width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">80,000</p>
</td>
<td width="89" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">6,000,000</p>
</td>
</tr>
</tbody></table>
<p class="western"><br /><br />
</p>
<h3 class="western">Fuel</h3>
<p class="western">Next you need to provide fuel for your engines and
how much acceleration each fuel load will provide for your ship.
Each engine uses different types of fuel and has different storage
capabilities and requirements.</p>
<h4 class="western">Chemical Engines</h4>
<p class="western">Each fuel load allows a chemical engine to operate
at maximum thrust for 60 minutes. This is typically enough to allow
the ship to make one round trip between the ground and orbit or
limited acceleration and maneuvering in space. Each engine can only
hold a single fuel load and must be refueled after each load is
expended. The cost of a fuel load depends on the size of the engine
and is given in the following table.</p>
<p style="margin-bottom: 0in; line-height: 100%"><br />
</p>
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<p class="western" align="center"><strong>Engine Class</strong></p>
</td>
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<p class="western" align="center"><strong>Cost of a fuel load</strong></p>
</td>
</tr>
<tr valign="top">
<td width="95" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">Class A</p>
</td>
<td width="139" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">300 cr</p>
</td>
</tr>
<tr valign="top">
<td width="95" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">Class B</p>
</td>
<td width="139" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">1000 cr</p>
</td>
</tr>
<tr valign="top">
<td width="95" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">Class C</p>
</td>
<td width="139" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">4200 cr</p>
</td>
</tr>
</tbody></table>
<p style="margin-bottom: 0in; line-height: 100%"><br />
</p>
<h4 class="western">Ion engines</h4>
<p class="western">Although not as powerful as chemical or atomic
engines, these engines are reliable and can hold more fuel. While
they can technically run off any material, the fuel of choice is
hydrogen. Using any other fuel source decreases the thrust provided
by the engines by a factor of two. Each engine can hold 10,000 fuel
units and each unit provides 10 minutes of operation at maximum
thrust (A fully fueled ion engine can operate continuously for over
80 days without refueling). A fuel unit costs 5, 17, or 70 cr per
unit for Class A, B, or C engines respectively.</p>
<p class="western">Once every 10 years, the atomic fuel pellet in the
ion engine’s reactor needs to be replaced, the cost for this fuel
pellet is the same as that for a similarly sized atomic engine.</p>
<h4 class="western">Atomic engines</h4>
<p class="western">Like the other engines, Atomic engines store all
their fuel internally. The fuel for these engines consists of two
parts. The first is a load of fuel like the chemical rockets, the
second consists an atomic fuel pellet (typically uranium) to power
the reactor. The amount of fuel that can be stored depends on the
size of the engine and is given in the table below.</p>
<p class="western">Each atomic fuel pellet and load of chemical fuel
provides enough fuel for 10,000 minutes (about 8.3 days) of operation
at maximum thrust. The cost of a fuel pellet depends on the size of
the engine, given in the table below. The cost of the chemical fuel
is identical to that of the chemical engines of the same size.</p>
<p class="western">Consult the table below to determine the number of
fuel loads &amp; pellets held and time between each overhaul for each
engine size.</p>
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<p class="western" align="center"><strong>Engine Class</strong></p>
</td>
<td width="172" style="border-width: 1px medium 1px 1px; border-style: solid none solid solid; border-color: rgb(0, 0, 1) currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0.04in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Trips between overhauls</strong></p>
</td>
<td width="205" style="border-width: 1px medium 1px 1px; border-style: solid none solid solid; border-color: rgb(0, 0, 1) currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0.04in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Maximum Fuel Pellets loaded</strong></p>
</td>
<td width="149" style="border: 1px solid #000001; padding: 0.04in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><strong>Cost per pellet (cr)</strong></p>
</td>
</tr>
<tr valign="top">
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<p class="western" align="center">Class A</p>
</td>
<td width="172" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">1</p>
</td>
<td width="205" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">3</p>
</td>
<td width="149" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">10,000</p>
</td>
</tr>
<tr valign="top">
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">Class B</p>
</td>
<td width="172" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">3</p>
</td>
<td width="205" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">6</p>
</td>
<td width="149" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">32,000</p>
</td>
</tr>
<tr valign="top">
<td width="89" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">Class C</p>
</td>
<td width="172" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">10</p>
</td>
<td width="205" style="border-width: medium medium 1px 1px; border-style: none none solid solid; border-color: currentcolor currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center">12</p>
</td>
<td width="149" style="border-width: medium 1px 1px; border-style: none solid solid; border-color: currentcolor rgb(0, 0, 1) rgb(0, 0, 1); padding: 0in 0.04in 0.04in 0.03in" bgcolor="#ffffff">
<p class="western" align="center"><a name="_GoBack" title="_GoBack"></a>125,000</p>
</td>
</tr>
</tbody></table>
<p class="western"><br /><br />
</p>
<h4 class="western">Compute total acceleration per fuel load</h4>
<p class="western">Acceleration is measured in ADF One ADF is defined
as 10 minutes of acceleration at 1g.</p>
<p class="western">If you want to keep it simple, you can simply
assume the following:</p>
<ul><li><p class="western">a load of fuel in a chemical rocket provides
just enough thrust to make one round trip between the ground and
orbit around a planet or can provide a total of 8 ADF in space.
</p>
</li><li><p class="western">Ion engines use one fuel unit per engine per
ADF and a total of 1000 fuel units per engine for a single
interstellar jump</p>
</li><li><p class="western">Atomic engines use one chemical fuel load and
one atomic fuel pellet for a single interstellar jump or the same
fuel provides enough thrust for a total of 1000 ADF if operating
solely in-system.</p>
</li></ul>
<p class="western">If you want to be a bit more exact and track the
exact fuel usage you can do the following to computer the total
number of ADF that a load of fuel will provide for your ship
depending on the type of engine you have.</p>
<ul><li><p class="western">Chemical Engines – Take the maximum
acceleration you calculated for the ship earlier and multiply it by
6. This is the total number of ADF your ship gets from using one
load of fuel in each engine.</p>
</li><li><p class="western">Ion Engines – The maximum acceleration
calculated above is the number of ADF provided by expending a single
ion fuel unit in each engine.</p>
</li><li><p class="western">Atomic Engines – Take the maximum
acceleration calculated earlier and multiply by 1000. This is the
total ADF provided by using one unit of chemical fuel and one atomic
fuel pellet in each of your engines.</p>
</li></ul>
<h5 class="western">Examples</h5>
<p class="western"><em><strong>Chemical Engine</strong></em></p>
<p class="western">Fully loaded a Digger Shuttle (HS 2) has one Class
A chemical engine and a maximum acceleration of 4.7g. Since it has
chemical engines, the total ADF provided by the single load of fuel
in its engine is 4.7 x 6 = 28.2 or 28 ADF.
</p>
<p class="western"><em><strong>Ion Engine</strong></em></p>
<p class="western">A small (HS 7) freighter is equipped with four
Class B ion engines. Fully loaded, its maximum acceleration is 1.1g.
Thus by using up one fuel unit in each of it's four engines, it has
1.1 ADF available. If each engine carries it's maximum fuel load
(10,000 units each), the total ADF available to the ship is 11,000
ADF. Since each interstellar jump typically takes 1000 ADF to
complete, the ship can make 11 trips without refueling if it needed
to.
</p>
<p class="western"><em><strong>Atomic Engine</strong></em></p>
<p class="western">The newly designed Swift class assault scout has a
total mass of 2470.83 tons and two Class A atomic engines for a total
thrust of 12500. This gives a maximum acceleration of 5.059g which
rounds to 5.0. The total ADF available to the assault scout from one
load of fuel in each engine is therefore 5x1000 = 5000 ADF. After
expending this much thrust, the assault scout will have used two
loads of chemical fuel and two atomic fuel pellets, one in each
engine.</p>