America’s Best Stealth Weapons

Uncategorized August 14, 2015 0

It’s not just military aircraft that go unseen by KYLE MIZOKAMI Stealth, or the idea of reducing the ability of the enemy to detect a weapon,...

It’s not just military aircraft that go unseen

by KYLE MIZOKAMI

Stealth, or the idea of reducing the ability of the enemy to detect a weapon, has been around since the first caveman sewed a pocket into his clothing and hid a rock in it.

Thousands of years later, with the ability to detect objects on the ground, in the air and at sea using electromagnetic radiation, hiding weapons in plain sight has become much harder. The idea of making an aircraft invisible to radar waves was not pursued as the properties of radar with regards to object shape were not fully understood.

Pyotr Ufimtsev, a Russian physicist, published a number of papers on predicting the reflection of electromagnetic waves — radar waves. The Soviet Union, not understanding the gravity of his work, translated many of them into English.

But aerospace engineers at Lockheed did, and extrapolated from it a correct theory on reducing the radar cross section of aircraft. The result was the Lockheed F-117A Nighthawk stealth “fighter.” Since then, stealth has been an integral part of every tactical aircraft deployed by the United States. Here are five of the most lethal stealth weapons of war.

NASA's SR-71 streaks into the twilight with full afterburner on the first night/science flight from the Dryden Flight Research Facility, Mar. 9, 1993. Onboard were research pilot Steve Ishmael and flight engineer Marta Bohn-Meyer. Mounted in the nose of the SR-71 was an ultraviolet video camera aimed skyward to capture images of stars, asteroids and comets. This flight checked the operation of the camera to insure the air turbulence at Mach speeds and the vibration of the aircraft did not interfere with the operation of the camera. The science portion of the flight is a project of the Jet Propulsion Laboratory, Pasadena, California. NASA Identifier: NIX-EC93-03092-5
SR-71. NASA photo

SR-71 Blackbird

Famous for being the fastest plane ever built, the SR-71 is less well known for being a stealthy aircraft. The SR-71, which cruised at Mach 3.2, was one of the first aircraft to incorporate multiple stealth features into its design.

First flown in 1962, the SR-71 incorporated four stealthy features into its design. First, surfaces were designed to avoid reflecting radar waves. Second, the aircraft’s wings, tail and fuselage made use of composites, alternating with titanium, on the idea that composites were radar-absorbing. Third, the massive J-58 afterburning engines, with their large air-gulping inlets were positioned close to the fuselage of the airplane.

The fourth feature incorporated into the SR-71 was a black paint infused with tiny iron ferrite spheres. The paint, which gave the SR-71 its distinctive “blackbird” look and helped reduced the plane’s radar cross section, cost $400 a gallon. Altogether, the SR-71’s stealthy design gave it a radar cross section of less than 10 square meters. By comparison, the radar cross section of an early F-15 Eagle is 100 square meters.

040813-F-1740G-003 Senior Airman Tony Kepo'o prepares to pull the landing gear wheel chock of an F-117 Nighthawk fighter during an end of runway check at Kunsan Air Base, Korea, on Aug. 15, 2004.  Kepo'o is a crew chief from the 49th Maintenance Squadron at Holloman Air Force Base, N.M.  About 300 airmen from Holloman are currently deployed here to Kunsan supporting Air Expeditionary Forces operations in the Pacific Region.  DoD photo by Master Sgt. Val Gempis, U.S. Air Force. (Released)
F-117 Nighthawk. Air Force photo

F-117 Nighthawk

The first operational stealth aircraft, the F-117 is often mistakenly referred to as a “stealth fighter.” Contrary to popular belief, the F-117 is actually a tactical bomber, with no air to air capability.

The F-117 was developed from the top secret Have Blue project, which produced two stealth technology demonstrating aircraft. The Have Blue aircraft emphasized a low radar signature over aerodynamic performance, and indeed needed fly-by-wire technology just developed for the F-16 to prevent the aircraft from losing control in flight. Fifty nine F-117 Nighthawk stealth fighters were eventually built.

The existence of the “stealth fighter” was speculated for much of the 1980s, reaching a frenzy after a July 1986 crash of a F-117 outside Bakersfield, California. The attempted cover-up only served to heighten public interest, and the Air Force confirmed the existence of the plane in 1988.

The F-117 first flew in combat in 1989, when it bombed targets during the invasion of Panama. The F-117 next flew in Operation Desert Storm, flying nighttime missions over Baghdad, and participated in no-fly zone operations against Iraq in the 1990s. F-117s flew missions over Kosovo in 1999, and Iraq during 2003’s Operation Iraqi Freedom. The F-117 was retired in 2008.

An aircrew flies a B-2 Spirit from Whiteman Air Force Base, Mo., over the airfield as part of an aerial demonstration for the 2010 Airpower Over The Midwest Airshow, Sept. 11, at Scott AFB, Ill. Tens of thousands of people attended the two-day airshow.
B-2 Spirit. Air Force photo

B-2 Spirit

First revealed in 1988 by the Northrop Corporation, the B-2 Spirit was to be America’s first truly stealthy strategic bomber. The tailless design was meant to minimize the aircraft’s radar signature, allowing it to penetrate Soviet air defenses during a nuclear war.

The end of the Cold War ended justification for a full scale order of 132 planes, and only 21 were built. The success of the F-117 Nighthawk during the 1991 Gulf War showed the utility of stealthy aircraft capable of conventional precision strike, and the B-2 fleet was modified to conduct conventional missions. The B-2 is capable of carrying everything from B61 nuclear gravity bombs to conventional Joint Directed Attack Munition (JDAM) bombs, to the enormous, 30,000 pound Massive Ordnance Penetrator (MOP).

The B-2 first flew in combat over Kosovo in 1999. The aircraft has also flown in support of Operation Enduring Freedom and Operation Iraqi Freedom. In 2011, three B-2s flying from the continental United States struck a Libyan airfield during Operation Odyssey Dawn.

A 1st Fighter Wing's F-22 Raptor from Joint Base Langley-Eustis, Va., pulls away from a KC-135 Stratotanker with the 756th Air Refueling Squadron, Joint Base Andrews Naval Air Facility, Md., after refueling off the east coast, May 10, 2012. The first Raptor assigned to the Wing arrived, Jan. 7, 2005. This aircraft was allocated as a trainer, and was docked in a hanger for maintenance personnel to familiarize themselves with its complex systems. The second Raptor, designated for flying operations, arrived, Jan. 18, 2005. On Dec. 15, 2005, Air Combat Command commander, along with the 1st FW commander, announced the 27th Fighter Squadron as fully operational capable to fly, fight and win with the F-22.
F-22 Raptor. Air Force photo

F-22 Raptor

The first operational stealth fighter, the F-22 Raptor was designed to replace the F-15 Eagle. Unlike previous American stealth aircraft, including the F-117 and B-2, the F-22 was to be a fighter, using stealth to give it decisive advantage in air-to-air combat. Declared operational in December 2005, the F-22 is the world’s best fighter, outclassing all current and projected fighters, and the only operational so-called fifth generation fighter.

The F-22 began life in the late 1980s as the Advanced Tactical Fighter (ATF). ATF would be the first aircraft to incorporate stealth in a highly maneuverable, fighter-type platform. The F-22 is designed to provide minimal radar and infrared signatures, the two primary homing mechanisms for air-to-air missiles. The radar cross section of the F-22 is estimated by manufacturer Lockheed Martin as, from some angles, approximate to a “steel marble.”

The U.S. Air Force originally planned to order 750 F-22s to replace the F-15A and F-15C, but orders were slashed to 183 aircraft.

BREMERTON, Wash. (June 26, 2015) The guided-missile submarine, USS Ohio (SSGN 726), sails through the Puget Sound after departing Puget Sound Naval Shipyard after nearly a year spent in the yards. (U.S. Navy photo by Mass Communication Specialist 1st Class Kenneth G. Takada/Released)
USS Ohio. Navy photo

Ohio-class nuclear missile submarine

Stealth doesn’t just apply to aircraft — submarines have been incorporating stealthy features for decades. Among submarines, the most powerful combination of lethality and stealth is almost certainly the Ohio-class nuclear powered ballistic missile submarines.

A popular — possibly apocryphal — legend about the Ohio class holds that they were never detected by rival Soviet submarines and submarine detection systems.

The Ohio submarines at 18,450 tons submerged are the largest submarines ever built by the United States. Stealthy features include a cylindrical, fish-shaped hull for fast movement with minimal noise. Noise-generating equipment is placed on sound-isolating mounts. The nuclear missile silos, laid out in two rows behind the sail, are flush with the hull to decrease flow noise. The subs also mount two steam turbines, one for quiet operation.

Eighteen Ohio-class submarines were built — 14 serve on as ballistic missile submarines while four were rearmed with conventional Tomahawk cruise missiles.

This article originally appeared at The National Interest.