Editing Crab

{{InfoBoxBattleMech
|image = Crab RGilClan v05.png
|name = ''Crab''
|manufacturer = [[Cosara Weaponries]] (Northwind)<ref name=TRSWp80f>''Technical Readout: Succession Wars'', pp. 80–81</ref>
|production year = 2719
|year reference = <ref>''[http://www.masterunitlist.info/Unit/Details/716/ MUL online date for the ''{{PAGENAME}}'']''</ref>
|model = CRB-27
|cost = 4,050,875 [[C-bill]]s
|Tech Base = Inner Sphere
|mech type = BattleMech
|feet = biped
|mass = 50
|chassis = [[Hollis Mark 1A]] <!-- <ref name=TRSWp80f /> -->
|armor = [[Paulina Ferro-Fibrous]] <!-- <ref name=TRSWp80f /> -->
|engine = [[Magna 250]] <!-- <ref name=TRSWp80f /> -->
|comsys = [[Dalban Series K/Garret T11-b]] <!-- <ref name=TRSWp80f /> -->
|T&T = [[650 RND/Garret D2j]] <!-- <ref name=TRSWp80f /> -->
|heat sinks = 16 [[Heat Sink|single]] <!-- <ref name=TRSWp80f /> -->
|speed = 86 <!-- <ref name=TRSWp80f /> -->
|armament =  <!-- <ref name=TRSWp80f /> -->
* 2x [[large laser]]
* 1x [[medium laser]]
* 1x [[small laser]]
|BV (1.0) = 965<ref>''Combat Operations'', pp. 106 & 124</ref>
|BV (2.0) = 1,198<ref name=TRSWp80f />
}}

==Description==
Designed in [[Introduction Year::2719]] during the last days of the [[Star League]], the '''''Crab''''' was built as a medium-weight raider and guerrilla fighter for the [[Star League Defense Force]]. Although lacking [[jump jets]], it possessed good overland speed and its all-energy weapons payload was suitable for long-range missions without the prospect for resupply. The ''Crab'' also boasted a highly advanced communications system, the [[Dalban Series K]], and was built mostly with proven parts that were easy to maintain. The term "''Crab'' walk" soon became synonymous with easy duty, since technicians spent less than half the time maintaining the ''Crab'' than with other 'Mechs of the same weight class. So popular was the ''Crab'' that many believed it was likely to become the standard medium 'Mech of the SLDF. Unfortunately the [[Amaris Civil War]] and the dissolution of the Star League put an end to any future plans for the ''Crab''.<ref name=TRO2750>''Technical Readout: 2750'', p. 30-31</ref><ref name=TRO3025r>''Technical Readout: 3025 Revised'', p. 56-57</ref><ref name=TRO3039>''Technical Readout: 3039'', p. 258-259</ref>

Less than 1,000 ''Crabs'' had been produced when the [[Succession Wars (History)|Succession Wars]] began. [[Cosara Weaponries]]' factory on [[Northwind]] was practically destroyed in [[2786]], one of many strategic targets attacked in the opening salvos of the [[First Succession War]]. Although dedicated technicians were able to keep portions of the assembly line open, producing what spare parts they still could to rebuild damaged ''Crabs'', the technology used for both the original's advanced armor plating and communications system became [[lostech|lost]]. Designated as CRB-20 models, these ''Crabs'' were only slightly inferior to the original; with the destruction of the military infrastructure necessary for the Dalban Series K's more advanced functions to work, its replacement by lesser systems ironically became less of an issue. By the end of the [[Fourth Succession War]] 100 or so ''Crabs'' were still active in the [[Inner Sphere]] and all were CRB-20s.<ref name=TRO3025r/><ref name=TRO3039/><ref name=TRO3050u>''Technical Readout: 3050 Upgrade'', p. 198-199</ref>

Unbeknownst to many, [[ComStar]] had secreted away massive stockpiles of Star League technology and 'Mechs, including the ''Crab''. When it came time to form their own military, original CRB-27 ''Crabs'' were used to outfit the [[Com Guards]], while at the same time gifting downgraded CRB-20s to the [[Draconis Combine]] during the [[War of 3039]] as part of [[Operation Rosebud]]. Concurrently, the discovery of the [[Helm Memory Core]] allowed the refit line on Northwind to start upgrading the remaining downgraded ''Crabs'' to their original specification. Unknown to anyone in the Inner Sphere was the continued existence of the ''Crab'' in the arsenal of the [[Clans]], although by the time of the [[Clan Invasion]] these had been relegated to second-line and garrison units. Eventually Cosara Weaponries was able to restart production of the original ''Crab'' in the [[Production Resumed::3050]]s and brand-new variants began turning up. Among these were new CRB-30s built by ComStar, later acquired by the [[Word of Blake]], which made use of new [[C3]] technology; it was also rumored ComStar sold these models to the [[Free Rasalhague Republic]]. During the [[Jihad]] the Word of Blake managed to capture the Northwind factory and begin producing their own radical variant known as the CRB-45.<ref name=TRO3039/><ref name=TRO3050u/>

==Weapons and Equipment==
The ''Crab'' carries two [[RamTech 1200]] [[large laser]]s, each housed in the claw and forearm of either arm. While excellent weapons, they are quite delicate with the focusing mirrors liable to be knocked out of alignment if used in hand-to-hand combat; fixing them requires the pilot to leave their cockpit and stick their head up into each arm's elbow to make the necessary adjustments. Backing up the large lasers is a [[Ceres Arms]] [[medium laser]] in the center torso, well-protected from the [[fusion engine]] and with easy access to the 16 [[heat sink]]s, and an [[Exostar]] [[small laser]] in the head, a last-resort weapon more suitable for fighting [[infantry]] and rioting citizens. Nine tons of [[ferro-fibrous]] armor provides good protection for its size as even the weakest locations, the left and right torso, can each survive a shot from a [[PPC]]. Originally lacking hand actuators, Cosara later provided a refit kit to install one in either or both arms.<ref name=TRO2750/><ref name=TRO3025r/><ref name=TRO3039/><ref name=TRO3050u/>

The centerpiece of the ''Crab'' is its [[Dalban Series K]] communications system with an integrated [[650 RND]] targeting-tracking system. It monitors all radio and short-wave bands to not only determine the 'Mech's exact location on a world but the approximate location of other units, friend or foe, without the use of [[satellite]]s. The system was smart enough to predict enemy movements and project a path towards a given location while avoiding their notice. However, in contrast to the rest of the 'Mech, this system was extremely hard to maintain, even breaking down when not in combat. As the Succession Wars dragged on, only the most elite and prestigious mercenary and House units could maintain the system, and when the last living Series K-certified technician died it soon became a matter of guesswork.<ref name=TRO2750/><ref name=TRO3025r/><ref name=TRO3039/>

The other notable feature of the ''Crab'' is its ejection seat, which performs in two different modes. When an explosion is imminent, the top hatch is blown off and the seat ejected up through the roof as commonly seen in other 'Mechs, with seat stabilization thrusters providing a controlled fall some 200 meters away. If more time is allowed, then the seat will instead rotate 90° and eject the pilot out the back of the 'Mech. This is a much briefer and gentler experience for the pilot, with their seat landing some 50 to 90 meters behind the ''Crab''.<ref name=TRO2750/><ref name=TRO3025r/>

==Variants==
*; CRB-20 : The CRB-20 is a downgrade of the CRB-27 ''Crab'', first sighted in [[2810]]. The only major modifications to the design is the use of [[standard armor]], which reduced the overall protection on the ''Crab'', and the replacement of its electronic systems with more reliable off-the-shelf models.<ref name=TRSWp80f /> When ComStar gifted their ''Crabs'' to the Draconis Combine they replaced the original components with a [[Garret T-11b]] communications system and a [[Garret D2j]] targeting and tracking system.<ref name=TRO3039/><ref name=RS3039>''Record Sheets: 3039'', p. 122</ref> BV (1.0) = 921,<ref name=CO124>''Combat Operations'', p. 124</ref> BV (2.0) = 1,143<ref name=RS3039 />

*; CRB-27b : A simple upgrade utilized by the [[SLDF Royal units|SLDF Royals]] concurrently with the original ''Crab'', the 27b replaces the original [[single heat sink]]s with [[double heat sink|double-strength models]] and the [[large laser]]s with [[ER large laser]]s.<ref>''Technical Readout: 3075'', p. 169</ref> BV (1.0) = 1,167, BV (2.0) = 1,308<ref>''Record Sheets: 3075 Unabridged'', p. 164</ref><ref>''Record Sheets: 3075 Unabridged - Age of War'', p. 21</ref>

*; CRB-27sl : Another ''Crab'' variant used by the Star League, the 27sl uses an [[XL engine]] with 14 [[double heat sink]]s. The [[large laser]]s and [[medium laser]] are traded out for two [[large pulse laser]]s and a [[medium pulse laser]], and the [[small laser]] replaced by a medium laser. To improve mobility, five [[jump jet]]s were added for a 150 meter jumping range.<ref>''Era Report: 2750'', p. 135</ref>

*; CRB-30 : The CRB-30 is a complete rework of the CRB-27 ''Crab'' introduced in [[3061]]. To start, the standard engine has been replaced with an [[extralight]] model. The CRB-30 puts this free weight to good use by replacing the twin [[large laser]]s with a pair of [[ER PPC]]s and upgrading the [[medium laser]] and [[small laser]] to an [[ER medium laser]] and an [[ER small laser]]. The standard [[single heat sink]]s have all been replaced with [[double heat sink]]s, though two have been removed, so the PPCs must use [[volley fire]]. The last part of this upgrade is the addition of a [[Guardian ECM suite]] and an [[improved C3 computer]].<ref name=TRSWp80f /><ref>''Record Sheets: 3050 (Clan & Star League)'', p. 131</ref> BV (1.0) = 1,204 (C3: 188),<ref>''Combat Operations'', p. 123</ref><ref>''Record Sheets: Upgrades'', p. 83</ref> BV (2.0) = 1,509

*; CRB-45 : This variant, fielded by Word of Blake and first spotted in [[3070]], makes use of three [[light PPC]]s and an [[ER large laser]], turning the ''Crab'' into a direct-fire support 'Mech. The 45 incorporates 15 [[double heat sink]]s to combat all heat the machine is capable of producing, while a larger 300-rated [[XL engine]] allows speeds of up to 96 km/h. This came at a slight decrease in armor, though the use of a [[heavy ferro-fibrous]] weave helped make up most of the difference. A seemingly-standard [[C3i computer]] allows this design to share target data with other like-equipped units.<ref name=TRSWp80f /><ref>''Record Sheets: 3050 (Clan & Star League), p. 132</ref> BV (2.0) = 1,342

*; CRB-54 : This ''Crab'' variant uses a [[composite internal structure]] and a 350-rated [[XXL fusion engine]] to reach speeds of 110 km/h. A [[supercharger]] allows it to sprint at 140 km/h, which is good for leaving the field when its armor is breached. Main firepower comes from a pair of [[plasma rifle]]s supported by an [[ER medium laser]] and an [[ER small laser]].<ref name=rg6p13>''Recognition Guide: ilClan, vol. 5, p. 13</ref> BV (2.0) = 1,964<ref>''Recognition Guide: ilClan, Vol. 5'', p. 18</ref>

*; CRB-C : The CRB-C ''Crab'' is a minor update of the design modified to include a [[C3 slave unit]]. Introduced by the Draconis Combine in [[3056]], this ''Crab'' makes space for the C3 unit by removing the [[medium laser]].<ref name=TRSWp80f /><ref>''Record Sheets: 3050 (Clan & Star League)'', p. 133</ref> BV (1.0) = 950 (C3: 90),<ref name=CO124 /> BV (2.0) = 1,135

===Apocryphal Variants===
{{ApocryphalContentStart}}
These variants were introduced in various apocryphal sources, and thus far have not appeared in any canonical media.

''From ''[[BattleTech (Video Game)|BattleTech]]'':''
*; BSC-20 ''Big Steel Claw'' : Described as a [[FrankenMech]] combining the shell of a CRB-20 ''Crab'' and the [[autocannon]] feed from an [[UrbanMech]]. [[Solaris Games]] duelist, [[Bogdan Tubbs|Bogdan "The Steel Beast" Tubbs]]' ''Big Steel Claw'' mounts an [[AC/5]] in the right arm fed from a single ton of reloads, supported by a pair of [[flamer]]s in the center torso and pair of [[medium laser]]s in the left arm.

''From [[MechWarrior Online]]:''
*; CRB-FL ''Florentine'' : While all indications are that [[Judith Faber]], [[Blake's Wrath]] agent ''Rapier'', piloted a standard CRB-27 during the [[Battle of Tukayyid (3052)|Battle of Tukayyid]], MechWarrior Online paints a wildly different picture in their version of her 'Mech. Named ''Florentine'', this variant is a virtual mini-''[[King Crab]]'', mounting an [[UAC/5]] in each arm supported by a left-torso mounted [[LRM-5]] and a right-torso mounted [[medium laser]]. Carrying one ton of missiles and three tons of autocannon ammunition, the ''Florentine''<nowiki>'</nowiki>s weapon loadout is made possible through use of a 250-rated [[XL engine]] and an [[endo steel]] frame.<ref>MechWarrior Online</ref>
{{ApocryphalContentEnd}}

== Design Quirks ==
The ''Crab'' is subject to the following [[Design Quirk]]:<ref>''[[BattleMech Manual]]'', p. 91 Design Quirk Table - Crab Entry.</ref>
* [[Easy to Maintain]]

==Related BattleMechs==
* ''[[Night Chanter]]'' - The ''Night Chanter'' is an OmniMech that [[Clan Coyote]] developed from the chassis of the ''Crab''.<ref name=TPFp19>''Turning Points: Foster'', p. 19: BattleMechs</ref>

==Notable Pilots==
:''See: [[:Category:Notable Crab Pilots]]

==Notes==
* In German products, the unit's proper name was translated to '''Krabbe'''. The model code was accordingly changed to '''KRB-27'''.
* Plastic CRB-27 is included in [[BattleTech: ComStar Battle Level II]]

==Gallery==
<gallery>
Crab.jpg|Original CRB-27 ''Crab'' from ''[[Technical Readout: 2750|TRO:2750]]''
CRB-Crab-2.png|CRB-20 ''Crab'' from ''[[Technical Readout: 3025 Revised|TRO:3025 Revised]]''
CRB-Crab.png|CRB-27 ''Crab'' from ''[[Technical Readout: 3050|TRO:3050]]''
CRB-20CRAB.png|CRB-20 ''Crab'' from ''[[Technical Readout: 3039|TRO:3039]]''
3050U Crab.jpg|CRB-27 ''Crab'' from  ''[[Technical Readout: 3050 Upgrade|TRO:3050 Upgrade]]''
Crab RGilClan v05.png|''Crab'' from ''[[Recognition Guide: ilClan, vol. 5 |RG:ilClan v5]]''
Battle of Twycross (5).jpg|A ''Crab'' in combat from ''[[The Battle for Twycross]]''
Exodus Road.jpg|The ''Crab'' of [[Judith Faber]] on [[Tukayyid]] from ''[[Exodus Road (novel)|Exodus Road]]'' novel cover
CCG Counterstrike Crab.jpg|CRB-27 ''Crab'' in combat from ''[[BattleTech Trading Card Game|CCG]]''
MWO Crab.jpg|Concept art of the ''Crab'' from [[MechWarrior Online|MWO]]
CRB-FL Florentine MW5Mercs.jpg|Model of ''CRB-FL "Florentine"'' from [[MechWarrior 5: Mercenaries|MW5:Mercs]]
</gallery>

==References==
<references/>

==Bibliography==
<div class="desktop-3-col">
* ''[[BattleMech Manual]]''
* ''[[Combat Operations]]''
* ''[[Era Report: 2750]]''
* ''[[Master Unit List]]''
* [https://mwomercs.com/resistance-heroes ''MechWarrior Online'' Resistance Heroes Sale Page]
* ''[[Recognition Guide: ilClan, vol. 5]]''
* ''[[Record Sheets: 3025/3026]]''
* ''[[Record Sheets: 3039]]''
* ''[[Record Sheets: 3050]]''
* ''[[Record Sheets: 3050 Upgrade (Clan & Star League)]]''
* ''[[Record Sheets: 3060]]''
* ''[[Record Sheets: 3075 Unabridged]]''
* ''[[Record Sheets: 3075 Unabridged - Age of War]]''
* ''[[Record Sheets: Upgrades]]''
* ''[[Technical Readout: 2750]]''
* ''[[Technical Readout: 3025 Revised]]''
* ''[[Technical Readout: 3039]]''
* ''[[Technical Readout: 3050]]''
* ''[[Technical Readout: 3050 Revised]]''
* ''[[Technical Readout: 3050 Upgrade]]''
* ''[[Technical Readout: 3075]]''
</div>


[[Category:Draconis Combine BattleMechs]]
[[Category:Free Rasalhague Republic BattleMechs]]
[[Category:Star League BattleMechs]]
[[Category:SLDF Royal BattleMechs]]
[[Category:C3 Slave Equipped BattleMechs]]
[[Category:Improved C3 Equipped BattleMechs]]
[[Category:German renamed units]]