Thursday, December 11, 2008

A-10 Thunderbolt



Key Data

Crew 1 pilot

Wingspan 17.53m

Length 16.26m

Height 4.47m

Empty Weight 25,000lb

Maximum Take-Off Weight 50,000lb

Non-Afterburning Turbo Fan Engines

2 x General Electric TF34-GE-100

The A-10 Thunderbolt is also known as the Warthog, the Flying Gun and the Tankbuster. The aircraft was used extensively during Operation Desert Storm, in support of NATO operations in response to the Kosovo crisis, in Operation Enduring Freedom in Afghanistan and in Operation Iraqi Freedom.

The A-10 is a high-survivability and versatile aircraft, popular with pilots for the 'get home' effectiveness. The mission of the aircraft is ground attack against tanks, armoured vehicles and installations, and close air support of ground forces.

The aircraft is suitable for operation from forward air bases, with short take-off and landing capability. The aircraft has a long range (800 miles) and endurance and can loiter in the battle area.

The manoeuvrability at low speed and at low altitude (below 1,000ft) allows accurate and effective targeting and weapon delivery over all types of terrain.

The first flight of the A-10 was in May 1972, and a total of 707 aircraft have since been produced. Originally manufactured by Fairchild, since 1987 the prime contractor for the A-10 has been Northrop Grumman, which carries out support and structural upgrade programmes from the Integrated Systems and Aerostructures Divisions at Bethpage, New York and at St Augustine in Florida.

Over 350 A-10 aircraft are in service with the US Air Force, Air Combat Command, the US Air Force Reserve and the Air National Guard.

In June 2007, Boeing was awarded a contract for the A-10 wing replacement program. Boeing will supply 242 replacement wing sets by 2018.

A-10C – PRECISON ENGAGEMENT UPGRADE PROGRAM

Improvements include: hands-on throttle and stick control, two new Raytheon Technical Services 5in x 5in multifunction cockpit displays, Situational Awareness Datalinks (SADL), digital stores management system, Integrated Flight and Fire Control Computer (IFFCC) from BAE Systems Platform Solutions for automated continuously computed weapons delivery, Sniper XR or Litening targeting pods for precision-guided weapons and helmet-mounted sighting system.

COCKPIT

The single-seat cockpit is protected by all-round armor, with a titanium 'bathtub' structure to protect the pilot that is up to 3.8cm thick. The cockpit has a large bulletproof bubble canopy, which gives good all-round vision.

The cockpit is equipped with a head-up display, which is used for targeting and weapon aiming, a Have-Quick secure radio communications system, inertial navigation and a Tactical Air Navigation (TACAN) system.

Lockheed Martin has begun delivery of 21 USAF A-10 aircraft with the embedded global positioning system/inertial navigation system (EGI), which pinpoints the exact location of the aircraft. The aircraft are also to be fitted with BAE Systems Terrain Profile Matching systems (TERPROM).

The pilot is equipped with night-vision goggles and also the infrared imaging display of the Maverick AGM-65.

WEAPONS

The aircraft has 11 stores pylons, providing an external load capacity of 7,260kg. There are three pylons under the fuselage and the loads can be configured to use either the centre-line pylon or the two flanking fuselage pylons.

For weapon guidance, the aircraft can be fitted with Pave Penny laser guidance / electronic support measures, pod installed on the starboard fuselage pylon. Each wing carries four stores pylons: three outboard and one inboard of the wheel fairing.

The A-10 can carry up to ten Maverick air-to-surface missiles. The Raytheon Maverick AGM-65 missile uses a variety of guidance systems, including imaging infrared guidance and warheads, including a high-penetration, 57kg conical-shaped charge warhead. Range is more than 45km. The A-10 can also carry the Sidewinder air-to-air missile, which is an all-aspect short-range missile with maximum speed over Mach 2.

The A10 is capable of deploying a wide range of ordnance: for example, the LDGP Mk 82 226kg, 500lb general-purpose bombs, BLU-1 and BLU-27/B Rockeye II cluster bombs and the cluster bomb unit CBU-52/71.

The Northrop Grumman Litening ER (Extended Range) targeting pod has been successfully integrated on an A-10. Litening ER features a 640 x 512 pixel thermal imager, CCD TV, laser spot tracker / rangefinder, IR marker and laser designator.

The aircraft is armed with a General Dynamics GAU-8/A Avenger 30mm cannon, mounted in the nose of the aircraft.

"The A-10 has 11 stores pylons, providing an external load capacity of 7,260kg."

Using the cannon, the A-10 is capable of disabling a main battle tank from a range of over 6,500m. The cannon can fire a range of ammunition, including Armour-Piercing Incendiary rounds (API) weighing up to 0.75kg, or uranium-depleted 0.43kg API rounds.

The magazine can hold 1,350 rounds of ammunition. The pilot can select a firing rate of 2,100 or 4,200 rounds per minute.

ENGINES

The two non-afterburning turbo fan engines, TF34-GE-100, supplied by General Electric, each supply 9,065lb thrust. The location of the engines, high on the fuselage, allows the pilot to fly the aircraft fairly easily with one engine inoperable.

Battery Powered Airplane



Take your everyday metal moni motoglider, trick it out with a custom battery pack and you've got the ElectraFlyer C, a small electric airplane that debuted at the AirVenture show in Oshkosh, Wisconsin, last week.

The plane, which received its airworthiness certificate in April, features a 5.6 kWh lithium battery with a projected life cycle (the number of times it can be depleted and recharged) of 1,000 cycles. The battery has a max weight of 78 pounds and can be custom-built to fit the available space in an airplane. It provides juice for a motor driving a 45-inch superlight PowerFin propeller made of a foam core surrounded by an outer shell of carbon fiber and glass fabric.

Once in the air, the ElectraFlyer C cruises at 70 miles per hour. Top speed is 90 mph and the stall speed is 45. The plane can fly for 90 to 120 minutes before the battery needs recharging. When the battery winds down, just plug it into a 110V outlet -- your house is full of them -- and you're good to go in just more than six hours. Bump the voltage to 220 and you're flying again in two hours.

The people at Electric Aircraft Corporation say the small plane carries some big benefits. The motor is nearly silent, which means no earplugs for pilots, and brings the potential for flying into new sites. And then there's the a dramatic improvement in what the company calls "neighbor relations" -- no droning engines to drive them nuts. Electric motors don't produce a lot of soot or pollution, and overhauls are a snap. And by combining this motor with the ElectraFlyer's slow turning propeller, you've got a flight that is practically vibration free.

But the most compelling sell is an economic one: The company estimates that "refueling" the plane with a full charge of the battery will cost, on average, a whopping sixty cents.

fuel for aircrafts from jatropha plant




I know all of you are wondering why I am writing about a little known plant called "Jatropha Curcas". Well... it all has to do with making biodiesel and the production of electricity using biodiesel as a fuel. This is to inform you of a source of vegetable oil that is relatively unknown in the United States and North America. The European community has already seen the light as have some Asian, African, Indian, and South American countries. Running engines on vegetable oil is nothing new... did you know that Rudolf Diesel originally designed his engine to run on peanut oil? Maybe the US has not seen the light yet because we are mostly engaged in the growing of food crops and oils like soybean oil, rapeseed oil, sunflower oil, and peanut oil. All these oils are edible and thus fetch high prices. After all, why should US farmers grow a completely inedible plant!? Used cooking oil is great for the "do it yourself" enthusiast, but there is not enough supply of used cooking oil to supply a whole nation. This is where Jatropha comes in...

Jatropha has the following benefits when looked at from the fuel production angle:

* it costs almost nothing to grow
* it is drought resistant
* it can be grown almost anywhere - even in sandy, saline, or otherwise infertile soil
* it is easy to propagate (a cutting simply pushed into the ground will take root)
* it is not invasive, or spreading, or damaging like kudzu
* it is capable of stabilizing sand dunes, acting as a windbreak, and combating desertification
* it naturally repels both animals and insects
* it lives for over 50 years producing seeds all the time
* it is frost hardy (does not like hard freezes)
* it does not exhaust the nutrients in the land
* it does not require expensive crop rotation
* it does not require fertilizers
* it grows quickly and establishes itself easily
* it has a high yield (Jatropha can yield about 1,000 barrels of oil per year per square mile - oil content of the seed is 55-60%)
* no displacement of food crops is necessary
* it is great for developing countries in terms of energy and jobs
* the biodiesel byproduct, glycerine, is profitable in itself
* the waste plant mass after oil extraction can be used as a fertilizer
* the plant itself recycles 100% of the CO2 emissions produced by burning the biodiesel

Holiday announcement

College reopens on 5th of Jan after the semester holidays

College closes from 8th to 18th of Jan and reopens on 19th of Jan..