Twin Engine Mechs
Field Manual: Homebrew
Introduction
Its an extremely common attempt of players to adapt modern thinking, technology, into battletech which is largely simplified and based on 80s concepts. Among the most common ideas is the multiple engine mech, this is my version of the "twin engine" rules.
By: Alex Warner
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Rules
This is intended as late years homebrew (read as after the xl engine).

This system was developed as a means of drastically increasing a mech's speed with out the high cost in terms of both vulnerability, and money of a XXL engine.

The system works by a mech utilizing 2 standard engine's as appose to a single larger (like xl, or XXL) engine. To use this system the mech's engine rating must be divisable by 2 and result in 2 same sized engines (of the standard sizes). These 2 engines are mounted in each of the side Torsos (Right and Left Torso) and all the critical locations normally occupied by a mechs engine in the center torso are considered empty.

Part of the consequence of the system is that the mech must mount an output regulator. This regulator weighs 1 ton and requires 1 crit for each 100 combined engine rating or fraction there of. The mech still may only place heat sinks in the engine as if it had a single engine of the combined rating.

Criticals: Each engine requires 3 critical hits to destroy (or have the torso its located in destroyed) to destroy that engine. A mech isn't considered engineless until both of its twin engines are considered destroyed, or its center torso is destroyed. For purposes of salvage a mech is considered salvagable as long as it has at least one undestroyed engine and the center torso hasn't been destroyed.

Treat critical hits to both engines as cumulative. (For example: if each of the mechs 2 engines had taken 2 critical hits, it would accumulat 20 heat a turn from damaged sheilding).

Engine destruction, if one of the engine's is destroyed the mech's movement rate is halved (rounded down). Similarly if the Regulator (in the center torso) takes even a single critical hit it is considered destroyed. Once the regulator is destroyed halve the mechs movement rounded down.

Treat the first 3rd engine hit you recieve as not only destroying the mech's engine (whichever it is) but also increase its heat leakage by 5 (15 total for that engine).

Cost:
A Twin Engine costs as follows:
Rating = Combined Engine total rating
tonnage = mech tonnage as per normal engine cost
((10,000 x Rating x tonnage)/75)x2
[Yes this is the same as an xl engine would cost]

The Router costs as follows
2,500x(Router Tonnage)xtonnage
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