P-800 Oniks

Yakhont/Onyx missile
Yakhont/Onyx missile at MAKS Airshow in Zhukovskiy, 1997.
Type	anti-ship cruise missile
Place of origin	Soviet Union/Russia
Service history
In service	2002–present
Used by	See Operators
Production history
Manufacturer	NPO Mashinostroyeniya
Produced	1987–present
Specifications
Weight	3,000 kg (6,614 lb)
Length	8.9 m (29.2 ft)
Diameter	0.7 m (2.3 ft)
Warhead	250 kg (551 lb) semi-armour piercing HE
Detonation mechanism	delay fuze
Engine	Ramjet 4 tons of thrust
Wingspan	1.7 m (5.6 ft)
Propellant	kerosene liquid fuel
Operational range	600 km (370 mi; 320 nmi) (Oniks version for Russia) 120 to 300 km (75 to 186 mi; 65 to 162 nmi) depending on altitude (Yakhont export version)
Flight ceiling	14,000 m
Flight altitude	10 meters or higher
Speed	Mach 2.5
Guidance system	midcourse inertial guidance, active radar homing-passive radar seeker head
Launch platform	coastal installations, naval ship, Fixed-wing aircraft

The P-800 Oniks (Russian: П-800 Оникс; English: Onyx), also known in export markets as Yakhont (Russian: Яхонт; English: ruby), is a Soviet/Russian supersonic anti-ship cruise missile developed by NPO Mashinostroyeniya as a ramjet version of P-80 Zubr. Its GRAU designation is 3M55, the air launched Kh-61 variant also exists. Development officially started in 1983, and by 2001 allowed the launch of the missile from land, sea, air and submarine. The missile has the NATO reporting codename SS-N-26 "Strobile". It is reportedly a replacement for the P-270 Moskit, but possibly also for the P-700 Granit. The P-800 was used as the basis for the joint Russian-Indian supersonic missile BrahMos.

The missile is carried in flight by aerodynamic lift. The solid-propellant booster is located in the ramjet's combustion chamber and is ejected by the airflow after it has burned out.

Standard batteries of the K-300 Bastion-P (Бастион-П-Подвижный):

In 2010 Sergei Prikhodko, senior adviser to the Russian President, has said that Russia intends to deliver P-800 to Syria based on the contracts signed in 2007. Syria received 2 Bastion missile systems with 36 missiles each (72 in total). The missiles' test was broadcast by Syrian state TV.

In May 2013, Russia continued the contract delivery to the Syrian government supplying missiles with an advanced radar to make them more effective to counter any future foreign military invasion. The warehouse containing the Bastion Missile was destroyed in an Israeli air strike on Latakia on 5 July 2013, but US intelligence analysts believe that some missiles had been removed before the attack.