Monthly Archives: March 2012

Jet Engine Heaven at Williams International Tour

On Friday March 16th, the AIAA University of Michigan Student section brought 10 students to Williams International in Walled Lake Michigan. If you like jet engines than this was the tour you should have been on! This is also the 10th aerospace engineering company that our AIAA section has visited since January. I’m pretty sure we have the monopoly on cool tours! Go Blue!

The Tour is About to Begin!


Our tour started with some quick seminars to learn a little bit more about Williams. For those of you that haven’t heard of Williams Int., they are the world’s leader in small jet engines. Their jets can be found on many Cessna and Cirrus models, but their main claim to fame was for producing an engine for the U.S. cruise missile.

We had some great lectures from various engineers on the topics of work cycles, combustion, material properties, and testing. The real fun started with a live test of the Williams International F107-WR-105 turbofan engine. After putting on our eye and ear protection, one of the test engineers, who was a recent UofM graduate started up the beautiful little engine. The purpose of the test was to get a final inspection of operation of the engine before sending it out to the customer. We really couldn’t be happier. As you can tell from the picture above this engine is SMALL! Since there isn’t any bypass air to speak of in this gas turbine, this little guy screamed! It was awesome! As we watched the test engineer ramp up the RPMs and take data we were all fixated on the computer screens, which displayed a plethora of information such as exhaust temperature, compressor RPM, and a bunch of other vitals.

Williams FJ44-3ATW

After 10 minutes of drooling, we moved on to yet another test cell! This time we were going to watch the startup of a Williams International FJ44-3A. The previous engine we saw could produce a max thrust of 607 lbf., this much larger engine is capable of 2820 lbf. We were ready for some power! We were in a much larger test room this time, as the engine was much larger. As the engineer ramped the power up to full, we were amazed and the noise and rumbling vibrations, but due to this engines larger bypass ratio, we were spared from the high pitch noises that the F-107 engine produced.

After the live engine tests we were completely satisfied and could have easily left with the fullest of appreciation and enthusiasm, but there was indeed more to see! We were lucky enough to go through most of the manufacturing rooms, where we got our fair share of lathes, presses, and welding machines. We must have seen over 100 engines scattered throughout the facility, most of them being small F-107 engines.

Thank You Williams International for hosting such a great tour. As an engine enthusiast myself, I was extremely satisfied with everything I was able to see. Cheers to you!

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What We Know So Far About the Successor to the B-2 Stealth Bomber

A great article from Popular Science. See the original article here: http://www.popsci.com/technology/article/2011-12/successor-b2-stealth-bomber

The youngest active stealth bomber in the U.S. turns 15 this year, and the other 19 B-2s in the Air Force fleet are nearly five years older. Meanwhile, the integrated defense systems they face have become much more sophisticated. Multi-static radar, which is now relatively common, is so sensitive that it can detect certain stealth craft. To stay ahead of such defense systems, the Air Force has budgeted $3.7 billion over the next five years to develop a successor to the B-2 that could be active by 2020. Actual designs of the new bomber are classified, but some secrets are already out.

Patents and bid proposals from Northrop Grumman, maker of the B-2, suggest that the new bomber will be narrower than the B-2 but maintain the familiar flying wing design, which reduces radar reflection by minimizing hard edges. Engineers are also testing new types of radar-absorbing coatings that could be customized to individual defense systems. And so a picture of the next generation of stealth bombers is beginning to emerge.

CUSTOM COATINGS

Most stealth coatings consist of a radar-absorbing material, typically a form of iron, suspended in paint. But they are heavy (which lowers fuel efficiency), need to be reapplied frequently, and don’t absorb all radar frequencies. Ceno Technologies, a particles-science company in Sanborn, New York, has developed a lighter, more durable coating that uses hollow ceramic spheres, called cenospheres. Because the spheres can be covered in carbon, silver or other metals that absorb slightly different wavelengths of radar, the coating can be customized to deceive specific radar systems.

SMOOTHER SHAPE

The B-2 has two semi-flush air-intake vents, the hard edges of which can reflect radar. In one design seen in a patent from Northrop Grumman, the new bomber has four small vents rather than two large ones. The smaller vents can be buried more deeply in the wing, reducing the possibility of radar returns.

SMARTER DECOYS

To confuse radar defense systems, the new bomber will probably carry something like the Miniature Air Launched Decoy made by Raytheon. The modified drones use radar reflectors to create bomber-like signatures that divert attention from the actual bomber. The decoys fly on a preprogrammed course for up to 575 miles and may carry radar jammers to further confuse air defenses.

RETRACTABLE WING

In one design from Northrop Grumman, engineers included a canard wing on the plane’s nose, which would provide extra lift during takeoff and flight, allowing a smaller bomber to carry a heavier weapons payload. Because its straight lines and hard angles would reflect radar, the canard wing will most likely be designed to fold flush with the bomber’s body as the craft comes within range of defense systems.

HEAVIER WEAPONS

The new bomber will most likely have a single weapons bay, as opposed to the twin bays on the B-2. It will still be able to carry conventional GPS-guided JDAM missiles, nuclear warheads and even the new 30,000-pound, bunker-busting Massive Ordnance Penetrator, but a single bay would reduce the cost of manufacturing—a major concern for designers on a relatively tight budget.

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Happy Pi Day!

Happy Pi Day everyone! Rejoice now before the Ides of March.

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A Whole Lotta Neil deGrasse Tyson

Neil deGrasse Tyson has been all over the news lately. Come get your fill of all things Tyson as I share some of my favorite moments of his awesomeness.

An avid defender of the sciences, Neil deGrasse Tyson, Ph.D. is an American astrophysicist and science communicator. He is currently the Frederick P. Rose Director of the Hayden Planetarium at the Rose Center for Earth and Space, and a Research Associate in the Department of Astrophysics at the American Museum of Natural History. – Wikipedia

NASA Budget Hearing

Dr. Tyson’s speech, just given to Senate about NASA spending. How much would you pay to “launch” our economy. How much would you pay for the universe? Truly awesome!

The full transcript below:

If you want to build a ship, don’t drum up people to collect wood and don’t assign them tasks and work, but rather teach them to long for the endless immensity of the sea.

Antoine St. Exupery

Currently, NASA’s Mars science exploration budget is being decimated, we are not going back to the Moon, and plans for astronauts to visit Mars are delayed until the 2030s –on funding not yet allocated, overseen by a congress and president to be named later.

During the late 1950s through the early 1970s, every few weeks an article, cover story, or headline would extol the “city of tomorrow,” the”home of tomorrow,” the “transportation of tomorrow.” Despite such optimism, that period was one of the gloomiest in U.S. history, with a level of unrest not seen since the Civil War. The Cold War threatened total annihilation, a hot war killed a hundred servicemen each week, the civil rights movement played out in daily confrontations, and multiple assassinations and urban riots poisoned the landscape.

The only people doing much dreaming back then were scientists, engineers, and technologists. Their visions of tomorrow derive from their formal training as discoverers. And what inspired them was America’s bold and visible investment on the space frontier.

Exploration of the unknown might not strike everyone as a priority. Yet audacious visions have the power to alter mind-states –to change assumptions of what is possible. When a nation permits itself to dream big, those dreams pervade its citizens’ ambitions. They energize the electorate. During the Apollo era, you didn’t need government programs to convince people that doing science and engineering was good for the country. It was self-evident. And even those not formally trained in technical fields embraced what those fields meant for the collective national future.

For a while there, the United States led the world in nearly every metric of economic strength that mattered. Scientific and technological innovation is the engine of economic growth–a pattern that has been especially true since the dawn of the Industrial Revolution. That’s the climate out of which the New York World’s Fair emerged, with its iconic Unisphere – displaying three rings – evoking the three orbits of JohnGlenn in his Mercury 7 capsule.

During this age of space exploration, any jobs that went overseas were the kind nobody wanted anyway. Those that stayed in this country were the consequence of persistent streams of innovation that could not be outsourced, because other nations could not compete at our level. In fact, most of the world’s nations stood awestruck by our accomplishments.

Let’s be honest with one anther. We went to the Moon because we were at war with the Soviet Union. To think otherwise is delusion, leading some to suppose the only reason we’re not on Mars already is the absence of visionary leaders, or of political will, or of money. No. When you perceive your security to be at risk, money flows like rivers to protect is.

But there exists another driver of great ambitions, almost as potent as war. That’s the promise of wealth. Fully funded missions to Mars and beyond, commanded by astronauts who, today, are in middle school, would reboot America’s capacity to innovate as no other force in society can. What matters here are not spin-offs (although I could list a few: Accurate affordable Lasik surgery, Scratch resistant lenses, Chordless power tools, Tempurfoam, Cochlear implants, the drive to miniaturize of electronics…) but cultural shifts in how the electorate views the role of science and technology in our daily lives.

As the 1970s drew to a close, we stopped advancing a space frontier. The “tomorrow” articles faded. And we spent the next several decades coasting on the innovations conceived by earlier dreamers. They knew that seemingly impossible things were possible –the older among them had enabled, and the younger among them had witnessed theApollo voyages to the Moon–the greatest adventure there ever was. If all you do is coast, eventually you slow down, while others catch up and pass you by.

All these piecemeal symptoms that we see and feel – the nation is going broke, it’s mired in debt, we don’t have as many scientists, jobs are going overseas – are not isolated problems. They’re part of the absence of ambition that consumes you when you stop having dreams. Space is a multidimensional enterprise that taps the frontiers of many disciplines: biology, chemistry, physics, astrophysics, geology, atmospherics, electrical engineering, mechanical engineering. These classic subjects are the foundation of the STEM fields – science, technology, engineering, and math – and they are all represented in the NASA portfolio.

Epic space adventures plant seeds of economic growth, because doing what’s never been done before is intellectually seductive (whether deemed practical or not), and innovation follows, just as day follows night. When you innovate, you lead the world, you keep your jobs, and concerns over tariffs and trade imbalances evaporate. The call for this adventure would echo loudly across society and down the educational pipeline.

At what cost? The spending portfolio of the United States currently allocates fifty times as much money to social programs and education than it does to NASA. The 2008 bank bailout of $750 billion was greater than all the money NASA had received in its half-century history; two years’ U.S. military spending exceeds it as well. Right now, NASA’s annual budget is half a penny on your tax dollar. For twice that–a penny on a dollar–we can transform the country from a sullen, dispirited nation, weary of economic struggle, to one where it has reclaimed its 20th century birthright to dream of tomorrow.

How much would you pay to “launch” our economy. How much would you pay for the universe?

Most Astounding Fact

Astrophysicist Dr. Neil DeGrasse Tyson was asked by a reader of TIME magazine, “What is the most astounding fact you can share with us about the Universe?” This is his answer.

Pluto Isn’t a Planet Anymore :(

“3rd graders are getting pissed off!”

Stephen Colbert Interview

Still need more Niel deGrasse Tyson? Not yet satisfied with the few tidbits I’ve fed you thus far. Well then pour yourself a glass of your favorite 15 year scotch and prepare for an hour of mind blowing facts!

Other than the whole Pluto thing (just kidding… I think), Dr. Tyson is a leading voice for our profession and dreamers alike. We all need to stand up for what we believe in. And for the love of all things holy or unholy. Support STEM :)

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Enthusiasts Call For More, Faster US Bombers | AVIATION WEEK

Enthusiasts Call For More, Faster US Bombers | AVIATION WEEK.

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New U.S. Stealth Bomber Details

Details about the new U.S. Stealth Bomber. Just being in Mojave, CA really makes this resonate.

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03/12/2012 · 10:14 pm

Dream Vacation for an Aerospace Engineer

During spring break a group of 16 aerospace engineers took a grand tour of Southern California (SoCal), visiting 8 of the top aerospace research and production facilities. Known as the “Aerospace Dream Tour,” this event was organized by Michigan’s AIAA chapter, which leveraged its network to arrange tours at JPL, Boeing, Northrop Grumman, SpaceX, Lockheed-Martin “Skunk Works,” Scaled Composites, Pratt & Whitney Rockedyne, and Edwards Air Force Base. Details of this trip were documented on a blog the AIAA president Steve Harris kept throughout the trip. A day-by-day breakdown summarizing our trip is given below:

Monday: On Monday we toured NASA’s Jet Population Laboratory (JPL) and Boeing’s C-17 production facility. JPL is responsible for almost all of the deep space probes NASA sends to the other planets. Among other things, we saw where the new Mars rover known as Curiosity (the Mars Science Laboratory, currently on its way to Mars) was made. We noticed an engineer in a clean suit was using the iHandy app on his iPhone to find the inclination of the MSL engineering model. Later that day we saw C-17 Globemasters in various stages of their construction. It was humbling standing next such a large aircraft in its infancy. Some of the construction techniques were very unique, and we learned some surprising facts on the type of damage this military aircraft can take and still stay in the air.

Tuesday: On Tuesday we toured Northrop Grumman and SpaceX. At Northrope we toured the composites facility and walked down the F-18 Super Hornet production line. Looking at fighter jets never gets old for an aerospace engineer, and seeing their half build structure and

Iron Man thinks rockets are cool.

internal guts gave us all goose bumps. We then toured SpaceX, which pretty much blew the socks off the space geeks in the group (myself included). Everywhere you looked there was space hardware, including a new rocket engine the tour guide told us we should probably not be looking at. We stuck our head into that Dragon capsule mock up, watched their mission control room in action during a test run for the upcoming launch, and ate some of the free frozen yogurt the employees enjoy every day at the expense of a bet lost to Elon Musk. Did I mention the Iron Man movie was filmed here?

Wednesday: The mind-blowing tours continued on Wednesday when we took a very exclusive tour of Lockheed’s Advanced Development Programs facility, commonly known as the Skunk

Walt and an F-1 Engine

Works. This is where a lot of the top secret aircraft are developed and built. Most of us never thought we would have a chance to step foot in this facility without working for them. There we had a chance to get down and dirty with the P-791, an experimental aerostatic/aerodynamic hybrid airship. The day kept getting better with a trip to the Mohave Spaceport and a tour of Scaled Composites. One of the most interesting aircraft they developed and built is the Space Ship One spaceplane, a suborbital vehicle which won them the X Prize. There TBP members (Dan Becker and myself) piloted the suborbital flight simulator, launching the spaceplane to the edge of space.

Thursday: On Thursday AIAA members took a tour of two of Rocketdyne’s production facilities. Rocketdyne is responsible for building the F-1 rocket engine; the enormous monster that combined with four other engines put a man on the moon. They also built the Space Shuttle Main Engines, among others. If you want to see their handy work head over to the FXB.

Friday: Our grant tour concluded on Friday with a bang, literally. We were sitting in a conference room on the secure military base eating lunch and a loud noise, which sounded like someone dropping something on the roof, shook the room. It was a sonic boom! We had a

F-22 Raptor on the Flight Line

chance to shake the wing of a Global Hawk (a surveillance UAV) to view the vibrational modes,  and saw plenty of jets in the air, including tow F-22 raptors. We saw the F-35 (the new Joint Strike Fighter) with our own eyes, and got up close to an F-16 and it various tools of destruction.

There is no question that this trip is basically the best possible way an aerospace engineer can spend a week short of flying in a fighter jet or traveling into space. However, not everything was official business. There were a lot of conventional fun activities we did as well. For instance, on

AIAA For Life!

Thursday, after our tour of Rocketdyne, we piled into our inconspicuous 12 passenger white van headed to Santa Monica for some beach time. There we took a short walk to Venice Beach to do some people watching, check out the set of American Ninja Warrior, and get some tattoos. Needless to say, it’s a pretty crazy place! Once the Sun set we drove to Hollywood Blvd for dinner and some live

The Doctor is In

music at the Hard Rock Café. We also spent some time hanging out with employees from SpaceX and Scaled Composites and made use of the hotel hot tub. All in all, a perfect spring break trip. We are all extremely grateful to everyone that made this trip possible.

If you are interested in joining Michigan’s AIAA chapter (and you should because AIAA regularly does awesome field trips and flies planes around AA at almost no cost to their members) please contact umichaiaa@gmail.com and ask how you can be a member. All majors welcome!

Written by: Nathan Mckay

UofM AIAA at the Pratt & Whitney Rocketdyne facility.

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How Boeing Makes a Plane

After my recent tour of Boeing in Long Beach I thought it would be fitting to show this great look into what we got to see. Enjoy!

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03/11/2012 · 8:52 pm

My Day at Lockheed Martin’s Skunk Works

One of the most anticipated tours of our Southern California tour series was to Lockheed Martin’s Advanced Development Programs (ADP), otherwise known as Skunk Works. Being a Michigan student, we are engulfed into the legend of Kelly Johnson. Going into our 5 x 7 wind tunnel building is always a stark reminder of why I chose to go to Michigan for my aerospace engineering studies. So as you can imagine, this was a dream come true.

Our destination was a close one. We departed from your hotel in Lancaster and made the 15 minute drive through the desert to Palmdale. With blues skies, sand, and mountains all around us, it was easy to spot the beautifully plain white and blue building that housed the Skunk Works. The entire group was excited for a trip that seemed very impossible.

The Legend of Kelly Johnson

I don’t think anyone in the group could of ever imaged being able to see such an icon of american aviation. The SR-71 Blackbird, F-117 Nighthawk, and the Lockheed U-2 spy plane were just a few of the many secret aircraft to be designed here. This moment had an especially large effect on me because of my profound interest in Kelly Johnson. I’m still awe struck that we were able to go inside…

Enough reminiscing… At 7am we passed a few security check points to make sure there were no terrorists on board. After everything checked out and we parked the vehicles we made our way to our first event of the morning. A group picture in front of Skunk Works! The 16 students and our host posed for a couple shots as we braved the apparently uncommon chilliness that Southern California was experiencing.

Our second activity for the day was to gather in one of the Skunk Work’s meeting rooms. As we walked through the hallways down to our destination we were surrounded by amazing pictures on the wall of past and current projects. In one of the larger entrance rooms we were presented with one of the coolest displays of the day, the six Collier Trophies, which is awarded annually ”for the greatest achievement in aeronautics or astronautics in America, with respect to improving the performance, efficiency, and safety of air or space vehicles, the value of which has been thoroughly demonstrated by actual use during the preceding year.” My particular favorite was their most recent trophy, which was won due to Pual Belivaqua’s design on the F-35 JSF engine design.

During our time in the meeting room we had some great talks with leading engineers at the company, including one of my favorite aircraft designers, Leland Nicolai. We got a taste for what the Skunk Works looks for in new graduates as well as some rich history of Lockheed Martin.

F-22 Raptor

Our first big tour of the day was especially amazing! The group was guided though the hallways to one of the large hangars, were we were getting an up close look at some new work that was being done to the F-22 Raptor. I’ve been on the production line at Mariette, GA for the F-22 (which was amazing, by the way), but this was a completely different experience. Instead of a bunch of F-22′s everywhere, there were only three, but intricate work was being done to them on the inside. Like no brain surgeon could ever image, panels from this beautiful bird were taken off and the Raptor’s intricately detailed interior was exposed. The room we were in was insanely clean, and unlike production lines, this room was relatively quiet.


P-791 Hybrid Airship

After spending some time with the Raptors, we moved on to an area, which was much more accessible and less “secret” than the F-22s. It was time for the P-791 Hybrid Airship! Most people may think that blimps are dead, but I can assure you that their resurgence into the aviation field is in full swing.  Using the principles from buoyant lift and aerodynamic lift, this aircraft is ultra-efficient… as long as you’re going under 100 mph. I’ll talk more about the P-791′s applications in a later post, for now check out the great video below.

X-55 All Composites Cargo Aircraft

After spending a healthy hour all with the P-791, we were off to the X-55 ACCA. I was excited to see yet another experimental airplane on the same day! The Advanced Composite Cargo Aircraft (ACCA) is an experimental twin jet engined transport aircraft. Its primary role is to demonstrate the new cargo-carrier using advanced composites. On this part of the tour we didn’t get to just stand behind some hefty red tape, no we were going inside! I think the coolest part of being inside the ACCA was seeing and touch all of the composites on board as well as being able to see the pulley system, which controls all the flight flight

controls. We learned that during flight tests the inside of cargo area gets extremely loud. We definitely noticed this, while we were exploring this beauty.

Being able to be at the Skunk Works was great! A trip that I never thought possible. We learned  one important thing from the Skunk Works that day, and that was a quote:

I have learned to use the word ‘impossible’ with the greatest caution. -Wernher von Braun

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Aerospace Dream Tour Group Photos

I thought it would be fitting to make a post with all of the group photos we took at each of the companies that the University of Michigan AIAA Student Chapter took while in Southern California.

University of Michigan group picture in front of JPL

We had a great tour of the C-17 production line. What an amazing airplane and impressive facility.

The University of Michigan group in front of Northrop Grumman's facility in El Segundo, CA.

The group inside the SpaceX lobby.

Group shot in the Scaled Composites Lobby

UofM AIAA at the Pratt & Whitney Rocketdyne facility.

UM Students in front of the Global Hawk at Edwards AFB

University of Michigan with Cal Poly Students at Edwards Air Force Base.

AIAA at Edwards Air Force Base

I’m still waiting on some official photos from Edwards and Rocketdyne. Once they’ve cleared security, I’ll post the update here.

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