Per 
OBJECT CLASS: Euclid
SPECIAL CONTAINMENT PROCEDURES:
SCP-5079 is to be kept in a tungsten airplane hanger with 3 anti-aircraft canons on the roof 20 armed guards are to patrol the area around SCP-5079 containment hanger. should SCP-5079 activate it should be promptly incinerated to prevent a XK class world ending event (see article 1) do not allow any SCPs around SCP-5079, do not touch anything in or outside of SCP-5079, do not attempt to activate SCP-5079, do not fire SCP-5079-1, keep all class D personnel away from SCP-5079, SCP-5079-1, and SCP-5079-2
Description:
SCP-5079 is a high-tech heavy long range fighter jet of unknown origin, prior testing and containment breaches has shown that SCP-5079 is capable of vertical and horizontal take-off, it can be very destructive because of it’s railgun, (see article 3). SCP-5079-1 is the railgun component of SCP-5079, due to it's destructive capabilities all research and testing of SCP-5079-1 shall be halted until authorized by the 05 council or selected level 4 researchers. SCP-5079-2 is the cockpit component of SCP-5089 which is very complex and only D-6728 was able to get it flying (see article 2) before test-5 were he crashed it and suffered a fatal brain injury.
Article 1
SCP-5079 suddenly activated during a material composition test when it breached containment and <[DATA EXPUNGED]> and was then recaptured and was transported to site- were SCP-5079 may be used for termination purposes. [Orders canceled must not get close to any Euclid or Keter SCPs that are still unexplained as it will <[DATA EXPUNGED]> those SCPs also SCP-5038 has proven ineffective at termination of SCP-096, SCP-106, SCP-682, and SCP-173.
Article 2
D-6728 was able to activate SCP-5079 and flew it around the testing chamber for a short amount of time before he crashed it into the northern wall and the automatic ejection seat activated and rammed D-6728's head into the ceiling killing him. Researchers were able to reattach the seat to SCP-5079 using explosive bolts but were unable to stuff the parachute back into it's pouch.
Article 3
SCP-5079's railgun is very futuristic using an advanced ion projectile launching system which has proven to fire a unknown projectile at mach 15 with deadly accuracy and has been able to break through the following materials steel, titanium, lead, and concrete.
