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World War 2 photos of the week
Category: Military
The Su-47 has extremely high agility at subsonic speeds, enabling the aircraft to alter its angle of attack and its flight path very quickly while retaining maneuverability in supersonic flight. The Su-47 has a maximum speed of Mach 1.6 at high altitudes and a 9g capability.
Maximum turn rates, and the upper and lower limits on airspeed for weapon launch, are important criteria in terms of combat superiority. The Su-47 aircraft has very high levels of maneuverability with maintained stability and controllability at extreme angles of attack. Maximum turn rates are important in close combat and also at medium and long range, when the mission may involve engaging consecutive targets in different sectors of the airspace. A high turn rate of the Su-47 allows the pilot to turn the fighter aircraft quickly towards the next target to initiate the weapon launch. Like most other fighters with fly by wire controls, the Su-47 achieves some of its high maneuverability through relaxed stability.
The swept-forward wing, compared to a swept-back wing of the same area, provides a number of advantages:
- higher lift-to-drag ratio
- higher capacity in dogfight maneuvers
- higher range at subsonic speed
- improved stall resistance and anti-spin characteristics
- improved stability at high angles of attack
- a lower minimum flight speed
- a shorter take-off and landing distance
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Russian military photos of the week
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XM-25 Weapons System
“What makes this weapon system truly revolutionary is the ability to target the enemy, pass on this information to the sensors and microchips of its 25mm HEAB round, and have that round detonate over the target,” explained Maj. Shawn Murray, a Soldier Weapons assistant product manager in PEO Soldier, the organization responsible for developing the XM-25.
“When the HEAB round explodes, the target is peppered with fragmentation,” Murray said. “Our studies indicate that the XM-25 with HEAB is 300 percent more effective at incapacitating the enemy than current weapons at the squad level.”
Because of the XM-25’s unique TAFC and HEAB round, Soldiers will be able to engage enemy forces located in the open and “in defilade” -behind cover, such as walls, rocks, trenches, or inside buildings. The semi-automatic weapon’s magazine holds four 25mm rounds and can be employed at night or during inclement weather thanks to the XM25’s built-in thermal sight.
After only five minutes of instruction at the Aberdeen Test Center, Sgt. Logan E. Diveley from the 180th Infantry Regiment was able to put his first HEAB round through a building’s window and take out an enemy mannequin at 200 meters.
When asked what he thought of the weapon, Diveley responded, “I’ve been in over nine contacts with the enemy during my two tours in Iraq. Their ambushes were usually initiated with an IED and followed up with small arms fire from behind walls and buildings, places where it was hard for us to get at them. The XM-25 would have taken care of things and made our jobs much easier.”
Once downrange and in the building where the defeated enemy mannequin lay, Maj. Murray noted the limited collateral damage associated with the XM-25.
“Because of its pinpoint accuracy and relatively small warheads, the XM25 can neutralize an enemy without the need to destroy a whole building,” Murray said. “For our counter-insurgency operations to be successful, it is important to keep collateral damage to a minimum and to protect the civilian population. I think the XM-25 will prove itself many times over in Afghanistan,” Murray said.
