Steam Jet Ejector Design Software
Research was performed to optimize high-efficiency jet ejector geometry (Holtzapple, 2001) by varying nozzle diameter ratios from 0.03 to 0.21, and motive velocities from Mach 0.39 to 1.97. The high-efficiency jet ejector was simulated by Fluent Computational Fluid Dynamics (CFD) software. A conventional finite-volume. Main Ship Equipments Equipment Types Main Marine Manufacturers An English-Chinese-Japanese Dictionary of Technology =A=B=C=D=E=F=G=H=I=J=K=L=M=N=O=P=Q=R=S=T=U=V=W. The vision of the Department of Mechanical Engineering, National Institute of Technology Silchar is as follows: To envisage an ambience of excellence, inspiring value.
By then, the nation that created the Spitfire and the Harrier will have long stopped making fighter aircraft of its own. Airfix, yes; Supermarine, Hawker and their successor BAE Systems, no. Even if we had the will, we are unlikely to have the money. We will depend on our special relationship with the United States more than ever before. These are weighty matters that have drawn critics and supporters into a frenzied debate over the virtues of the F-35.
Just as I near the restrained grey jet at Fort Worth to talk to its test pilot, a bright orange butterfly catches my eye. A Gulf fritillary, it flutters innocently within feet of the supersonic warbird. It makes me think of the need we feel to protect the simplest freedoms with the most complex and terrifying weaponry, machines that, like the proverbial wheel, can break a butterfly. We need the assurance of jet-powered, digitally guided, mechanical windhovers – fabricated from the most advanced materials and loaded with the latest digital sorcery and Star Wars weaponry – to assure a future in which we, or a young girl on her way to school in Afghanistan, can stop and stare at a fleeting fritillary. 'Darth Vader never had a helmet like this,’ says Billy Flynn, a senior Lockheed Martin test pilot with combat experience flying Royal Canadian Air Force CF-18s in Serbia and Bosnia, showing me his Vision Systems International 'bone-dome’.
Made of carbon-fibre, the Israeli-US-designed augmented-reality helmet is packed with hi-tech gadgetry, and displays all the data the pilot needs inside its visor. The F-35 pilot's augmented-reality helmet (Reuters) 'This is an essential part of the F-35. It’s what makes such a difference,’ Flynn says. 'It’s been laser-scanned to fit my head, bumps and all. Through it, I can see 360 degrees all around the airplane.
Avatar The Last Airbender Mugen Characters. It’s wild seeing the undulations of the Red River along the Texas border beneath your feet. It’s virtual reality!
Different, sure, but there’s not a pilot who would trade it for anything else. It needs refining, but it’ll make pilot and airplane an integral, all-seeing weapon.’ Everyone I meet involved in the F-35 project talks lyrically about the computer wizardry of this digital-era aircraft. I ask the same analogue question, over and again, of the test pilots: so what’s it like to fly? 'A no-brainer,’ they chorus. They talk so fervently about the Star Wars aspects of the F-35 partly because it is the easiest aircraft any of them has ever flown: pilots are free to manage the weaponry while the F-35, more or less, flies itself. Tucked away inside the Lockheed Martin complex, Dr Mike Skaff, the chief engineer of pilot/vehicle interface for the F-35 programme, and a former USAF F-16 pilot, guides me through the simulator.
The seat is comfortable, the view commanding, the controls minimal. Turn on the battery. Press the starter. In 90 seconds, the virtual F-35B is ready to fly just as the real aircraft would be: unlike most aircraft, the F-35 performs all necessary safety checks automatically and extremely quickly. The instrument panel is a glass screen measuring 20x8in.
As with an iPad, you touch it to bring up the information you need. Pilots can also talk to the aircraft; it talks back. Pushing the left-hand throttle forward and pulling ever so gently on the stubby right-hand control stick, take-off is smooth, almost imperceptible, and the climb rapid. Up we go, above what I take to be a 3D map of Afghanistan.
The aircraft rolls, loops and darts about with minimal input from the pilot. You might expect this of any existing 'fourth generation’ fighter jet, such as a USAF F-16 Fighting Falcon or RAF Typhoon, but it is a revelation to someone like me, a qualified pilot with experience of piston engines and no more than a 'second generation’ Hawker Hunter jet. The F-35B, however, is 'fifth generation’. Not only is it stealthy in the military sense – all but undetectable by radar because of its origami form, its special coating, its hidden engine and low heat emission – but it can also perform truly extraordinary tricks through its continuously upgradeable computer software and complex engineering. What sort of tricks? Well, here I am turning towards the airfield.
Not only will the F-35B land itself, but it will also hover at the touch of a button. Where hovering a Harrier is not unlike spinning plates on a pole on the tip of your nose while riding a trick bicycle on a circus high-wire – and no mistakes are affordable – the F-35 stops in the air, just like that, the pilot’s hands off the controls. With a second push of the button and a touch of throttle and stick, the F-35 soars back into the sky.
Skaff suggests I might like to take out a 'bad guy’. I don’t play computer games, but surely none could be as easy as this? With its complex radar, stealth capability, sensors and lasers, the F-35 finds enemy aircraft invisible to the eye.
I trace my finger across a matrix on the glass screen and lock on to the enemy. I am not even pointing the aircraft in their direction. I don’t need to. The F-35 can see and sense across huge distances in all directions.
I select a missile from the store of weapons concealed in the fuselage, squeeze the trigger and, pulling away, watch a digital countdown. Zero: enemy destroyed. Picture: Michael D Jackson/Lockheed Martin My simulated flight may have been a little all-over-the-sky, yet given a couple of hours I’m sure I could be a Top Gun, ready to climb into the cockpit of the real thing and, armed with that Darth-Vader-eat-your-heart-out helmet and a stiff dose of the Right Stuff, ready to take on the enemy wherever they may be threatening freedom on land, sea or air. It seems all so simple, so certain and seductive. Linotype Arabic Fonts Free Download. Who wouldn’t want this all-but-invisible, all-but-invincible sky warrior on their side?
There is no other military aircraft like it in the pipeline, much less in production; Russian and Chinese 'rivals’ are still essentially fourth generation. So why is the F-35 controversial? Why is Canada threatening to cancel its order? Why have there been so many spats between the Pentagon and Lockheed Martin?
Because the F-35 programme is at least five years behind schedule. Because costs have risen by more than 90 per cent.
Because design, development and testing have thrown up many problems that insiders view as teething problems – the helmet needs further work; early tailhooks failed to catch the wire when planes landed on the deck of the aircraft carrier USS Wasp; computer software is not all it should be, or not yet – and outsiders are determined to see as fundamental flaws. Earlier this year, Winslow T Wheeler of the US Center of Defense Information called the F-35 a 'gigantic performance disappointment’, adding, 'It’s the problem of paying a huge amount of money thinking you’re getting a Ferrari; you’re not, you’re getting a Yugo.’ While this is hardly true, it shows how high passions have run as the F-35 has been delayed. The F-35 emerged from the US Common Affordable Lightweight Fighter Project, a strictly American venture, announced in 1993, that metamorphosed in 1996 into the US Joint Strike Fighter Program (JSF), in collaboration with Britain and other international partners. The purpose of the project was to develop a stealth fighter to replace several frontline aircraft including the F-16 Fighting Falcon (a design from the mid-1970s still in production at Fort Worth, with more than 4,500 built), the F/A-18 Hornet and the AV-8B Harrier II. 'It’s what we call a South West policy,’ says Steve O’Bryan, Lockheed Martin’s fast-talking vice-president for F-35 business development, referring to America’s most popular budget airline, the inspiration behind EasyJet and Ryanair.
A former F/A-18 US Navy pilot – O’Bryan flew the first 'shock and awe’ missions to Baghdad in 2003 – he cites the efficiency and profitability of the Texas-based airline, which operates a single type of aircraft, the Boeing 737.