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The Tupolev Tu-144 (Russian: Tyполев Ту-144; NATO reporting name: Charger) is a retired jet airliner and commercial supersonic transport aircraft (SST). It is one of only two SSTs to enter commercial service, the other being the Anglo-French Concorde. The design was a product of the Tupolev design bureau, headed by Alexei Tupolev, of the Soviet Union and manufactured by the Voronezh Aircraft Production Association in Voronezh, Russia. It conducted 55 passenger service flights, at an average service altitude of 16,000 metres (52,000 ft) and cruised at a speed of around 2,000 kilometres per hour (1,200 mph) (Mach 1.6).

The prototype first flew on 31 December 1968 near Moscow, two months before the first flight of the Concorde. The Tu-144 first went supersonic on 5 June 1969, and on 26 May 1970 became the first commercial transport to exceed Mach 2. A Tu-144 crashed in 1973 at the Paris Air Show, delaying its further development. The aircraft was introduced into passenger service on 1 November 1977, almost two years after Concorde, because of budget restrictions.

In May 1978, another Tu-144 (an improved version, named Tu-144D) crashed on a test flight while being delivered, and the passenger fleet was permanently grounded after only 55 scheduled flights. The aircraft remained in use as a cargo aircraft until 1983, by which point a total of 102 commercial flights had been completed. The Tu-144 was later used by the Soviet space program to train pilots of the Buran spacecraft, and by NASA for supersonic research.

The Boeing AH-64 Apache Attack Helicopter was known to be the preeminent and most powerful anti-armor weapon system in the Gulf War. Designed to perform its combat missions day or night and in adverse weather, the Apache was designed specifically to meet the rigid requirements of the US Army’s Advanced Attack Helicopter Plan. The Apache is equipped with state of the art electronic technology and fire control systems. The firepower is awesome. The Apache can be loaded with 16 AGM-114 Hellfire Missiles, 76 70mm folding-fin aerial rockets or a combination of both - in addition to 1,200 30mm rounds for its M230 automatic cannon.

The Boeing AH-64 Apache is an American four-blade, twin-turboshaft attack helicopter with a tailwheel-type landing gear arrangement and a tandem cockpit for a two-man crew. It features a nose-mounted sensor suite for target acquisition and night vision systems. It is armed with a 30 mm M230 chain gun carried between the main landing gear, under the aircraft's forward fuselage. It has four hardpoints mounted on stub-wing pylons, typically carrying a mixture of AGM-114 Hellfire missiles and Hydra 70 rocket pods. The AH-64 has a large amount of systems redundancy to improve combat survivability.

Maximum speed: 292.60 km/h (181.81 mph) Maiden flight: 30 Sep 1975 Length: 58.17 ft Wingspan: 48.00 ft Passengers: 2 Type: Attack helicopter

Role: Attack helicopter
National origin: United States
Manufacturer: Hughes Helicopters (1975-1984)
                     McDonnell Douglas (1984-1997)
                     Boeing Defense, Space & Security (1997-present)
First flight: 30 September 1975
Introduction: April 1986
Status: In service
Primary users: United States Army
                      Israeli Air Force
                      Egyptian Air Force
                      Royal Netherlands Air Force
Produced: 1983-present
Number built: 2,000 as of March 2013
Unit cost: AH-64A: US$20M (2007)
               AH-64D: US$65M (2010)
               AH-64E: US$35.5M (FY2014)
Variants: AgustaWestland Apache

General characteristics
Crew: 2 (pilot, and co-pilot/gunner)
Length: 58.17 ft (17.73 m) (with both rotors turning)
Rotor diameter: 48 ft 0 in (14.63 m)
Height: 12.7 ft (3.87 m)
Disc area: 1,809.5 ft² (168.11 m²)
Empty weight: 11,387 lb (5,165 kg)
Loaded weight: 17,650 lb (8,000 kg)
Max. takeoff weight: 23,000 lb (10,433 kg)
Fuselage length: 49 ft 5 in (15.06 m)
Rotor systems: 4 blade main rotor, 4 blade tail rotor in non-orthogonal alignment
Powerplant: 2 × General Electric T700-GE-701 turboshafts, 1,690 shp (1,260 kW) [upgraded to T700-GE-701C (for AH-64A/D from 1990), 1,890 shp (1,409 kW)] each

Performance
Never exceed speed: 197 knots (227 mph, 365 km/h)
Maximum speed: 158 knots (182 mph, 293 km/h) (227mph)
Cruise speed: 143 knots (165 mph, 265 km/h)
Range: 257 nmi (295 mi, 476 km) with Longbow radar mast
Combat radius: 260 nmi (300 mi, 480 km)
Ferry range: 1,024 nmi (1,180 mi, 1,900 km)
Service ceiling: 21,000 ft (6,400 m) minimum loaded
Rate of climb: 2,500 ft/min (12.7 m/s)
Disc loading: 9.80 lb/ft² (47.9 kg/m²)
Power/mass: 0.18 hp/lb (0.31 kW/kg)

Armament
Guns: 1× 30 mm (1.18 in) M230 Chain Gun with 1,200 rounds as part of the Area Weapon Subsystem
Hardpoints: Four pylon stations on the stub wings. Longbows also have a station on each wingtip for an AIM-92 Stinger twin missile pack.
Rockets: Hydra 70 70 mm, CRV7 70 mm, and APKWS 70 mm air-to-ground rockets
Missiles: Typically AGM-114 Hellfire variants; AIM-92 Stinger may also be carried.

Avionics
Lockheed Martin / Northrop Grumman AN/APG-78 Longbow fire-control radar (Note: can only be mounted on the AH-64D/E)

The AH-64 Apache is the Army's heavy division/corps attack helicopter. The AH-64D Longbow remanufacture effort incorporates a millimeter wave fire control radar, radar frequency interferometer, fire-and-forget radar-guided HELLFIRE missile and cockpit management and digitization enhancements. The combination of the FCR, RFI, and the advanced navigation and avionics suite of the aircraft provide increased situational awareness, lethality and survivability.

The AH-64 Apache has a four-blade main rotor and a four-blade tail rotor. The crew sits in tandem, with the pilot sitting behind and above the copilot/gunner. Both crew members are capable of flying the aircraft and performing methods of weapon engagements independently.

The crew compartment has shielding between the cockpits, such that at least one crew member can survive hits. The compartment and the rotor blades are designed to sustain a hit from 23-millimeter (0.91 in) rounds. The airframe includes some 2,500 pounds (1,100 kg) of protection and has a self-sealing fuel system to protect against ballistic projectiles. The aircraft was designed to meet the crashworthiness requirements of MIL-STD-1290, which specifies minimum requirement for crash impact energy attenuation to minimize crew injuries and fatalities. This was achieved through incorporation of increased structural strength, crashworthy landing gear, seats and fuel system. Up to six AH-64 Apaches can be safely fitted inside the cargo hold of a USAF Lockheed C-5 Galaxy.

One of the most distinguishing features at the introduction of the Apache was its helmet mounted display, the Integrated Helmet and Display Sighting System (IHADSS); among other abilities the pilot or gunner can slave the helicopter's 30 mm automatic M230 Chain Gun to his helmet, making the gun track head movements to point at where he looks. The M230E1 can be alternatively fixed to a locked forward firing position, or controlled via the Target Acquisition and Designation System (TADS). The AH-64's standard of performance for aerial gunnery is to achieve at least 1 hit for every 30 shots fired at a wheeled vehicle at a range of 800-1,200 m (870-1,300 yd).

The AH-64 is designed to endure front-line environments and to operate during the day or night and in adverse weather via its avionics and onboard sensor suites. These systems include the Target Acquisition and Designation System, Pilot Night Vision System (TADS/PNVS), passive infrared countermeasures, GPS, and the IHADSS. Conducts rear, close, and shaping missions including deep precision strike. Conducts distributed operations, precision strikes against relocatable targets, and provides armed reconnaissance when required in day, night, obscured battlefield and adverse weather conditions.