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Bring the HEAT Podcast 9-24-15
Spill and I got together and hashed some stuff out. Lot’s of good talk about short range ballistic missiles, and about future combat vehicles for the Army. The sound quality is much better than last time.
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Navy Set to Install Hybrid Electric Drives in Destroyer Fleet Staring Next Year – USNI News
Next year the Navy will begin installing a hybrid electric drive (HED) system on 34 Flight IIA Arleigh Burke guided missile destroyers in a bid to lower the fuel costs of the ships, Naval Sea Systems Command (NAVSEA) told USNI News in a statement.The system, which will marry an electric motor to the ships’ main reduction gear to drive the ship at low speeds, promises to save the service thousands of barrels of fuel in over a ship’s deployment.Earlier this year L-3 — the company was awarded contract in 2012 to develop the technology — delivered two pre-production HED systems for testing ahead of the first installation in the Burkes in the fourth quarter of Fiscal Year 2016 after research and development testing is done, NAVSEA said.
Source: Navy Set to Install Hybrid Electric Drives in Destroyer Fleet Staring Next Year – USNI News
Interesting. I didn’t know this when I wrote about hybrid drives this morning.
The normal DDG-51 plant is four LM2500 gas turbines, two per shaft. Turbines spin at ridiculous speeds, whereas ships propellers work best at low speeds. To fix this mismatch, the LM2500s drive through a main reduction gearbox for each shaft. You can also operate with one engine on each shaft offline. I suppose you could just idle one shaft, and run the other on one engine only.
Here, you can use power from the ships service turbine generators to power a small motor that’s linked to the main reduction gearbox. Given a light enough load on the rest of electrical bus, you could simply run the ship off the generators and save quite a bit of fuel.
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Second Amendment Hypocrisy
He claims to need all of those to protect him from us. But really we need ours to protect us from HIM. And his ilk.
H/T Brian P.
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It’s Over: Yogi Berra Dies at 90
Sad news on the sports legends front this morning. Hall of Fame catcher Yogi Berra has passed away at age 90. One of the greatest catchers of all time, Berra was a 15-time all-star in 19 seasons, a three-time American League MVP who was the heart and soul of some of the great Yankees teams of the 50s. Lawrence Peter Berra was born on May 12th, 1925, in St Louis, MO. He was a childhood friend and teammate of fellow catcher Joe Garagiola, who thought that the homely Berra looked strikingly like the Maharishi Yogi pictured in a newsreel story that played between movies during one Saturday Matinee. And the most recognizable nickname in sport was born.
Short and stocky, five-foot seven and almost 190 pounds, his frame belied a grace and athleticism rare in a catcher. His physical strength was legendary, as was his ability to avoid striking out. In 1950, a year in which he hit 28 home runs and batted .322, Berra struck out only twelve times in 636 plate appearances, an astoundingly low figure. (In comparison, one 2015 Red Sox hitter, Mike Napoli, struck out twelve times in a three game series on two separate occasions.) Berra got his teams to the World Series a mind-boggling fourteen times in his 19 seasons, winning ten World Series rings. After his playing career, Berra was a manager and coach for many years, finally retiring in the early 1990s.
Of course, Berra was known to many outside baseball as the author of an seemingly endless list of funny sayings, such as “it gets late early out there”, and “It ain’t over til it’s over”. Once asked by Joe DiMaggio what time it was, Berra supposedly replied “Do ya mean right now?” That persona belied a man of shrewd baseball knowledge, and on teams with DiMaggio, Mantle, Whitey Ford, Billy Martin, and Elston Howard, Berra was considered the most baseball savvy. He was also a talented outfielder, playing left field when Howard began his catching career.
Like so many ballplayers of his generation, Yogi Berra served his country in World War II, a Gunner’s Mate in the US Navy who manned a rocket-firing landing craft off the Normandy beaches on D-Day. Berra remained very proud of his Navy service, and spoke often of it in his later years.
Yogi was also, by all accounts, a genuine and kind gentleman. He was known for treating everyone well, and for his humility and his humor. His is a loss, he was one of the greats of our national pastime, and an American icon.
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Vulcan Nose gear emergency
So, the Brits have a gorgeous Vulcan bomber in their warbird collection. Quite possibly the prettiest cold war airplane, the Vulcan served all the way until the 1980s, even attacking the Falkland islands during the 1982 war in the famous Black Buck raids.
Sadly, they’ll have to stop flying her after this year, when her engines operating hours expire. In the meantime, she’s on a last goodwill tour throughout Great Britain. And earlier this month, on September 5th, she almost suffered a calamity. Her nose gear failed to extend properly into the down and locked position. With a little help from a Supermarine Spitfire, ATC in the tower, and the good old emergency checklist, they managed to get the gear down and land safely.
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Wal-Mart and future Army vehicles.
So, Wal-Mart has a prototype of a new Peterbuilt/Great Dane big rig. Whether they order it into production remains to be seen.
I don’t really care about the aerodynamics part, but the drive train is interesting. Spill and I were talking about future Army vehicles (hope to get the podcast edited and published today) and one thing I neglected to bloviate on was the powerplants.
This Wal-Mart prototype uses a small gas turbine to charge a battery bank, and electric motors to actually move the vehicle.
Today, the US uses the M1 Abrams tank, which famously uses a gas turbine. It, however, is directly geared to the transmission, much as a gas turbine is used to spin the props of a turbo-prop. That gives the Abrams great power, and more importantly, great acceleration compared to diesel powered vehicles of similar weight and horsepower. The problem is, it isn’t terribly fuel efficient, with the a Abrams being famous for sucking down hundreds of gallons of JP-8 daily.
A hybrid gas turbine/electric plant avoids some of the pitfalls of that turbine inefficiency. First, the horsepower/torque requirement is shifted from the turbine to the electric motors. That means you can likely use a significantly smaller turbine. The turbine isn’t there to move the vehicle, it’s there to run the generator. And you can optimize a turbine and transfer case to run the turbine at its most efficient speed constantly.
Alternatively, when you have a decent charge on the battery banks, you can simply shut down the turbine, and yet still have power available to instantly move the vehicle. As it stands now, Abrams spend a LOT of time idling their turbines. Guess what? An Abrams burns fuel almost as fast at idle as it does when it’s moving. It wouldn’t take much to configure the turbine to automatically start as soon as the vehicle started moving. And since every time you move, you start charging, that means your battery bank can be comparatively small.
I can easily see a future family of integrated gas turbine/electric motor powerplants for almost every type of Army vehicle. Further, this type of powerplant is very helpful when we’re also looking at the ever increasing electrical loads place on vehicles by sensors and networking. And if future vehicles rely on lasers for active protection against, say, anti-tank missiles, they’ll need even more electrical power.
This is also very similar to the integrated drive system the Navy’s DDG-1000 Zumwalt class uses.
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India Panel Clears $2.5B Helo Deal With Boeing
NEW DELHI — After three years of waiting, India’s Cabinet Committee of Security (CCS), headed by Prime Minister Narendra Modi and which is responsible for the purchase of weapons and equipment, has cleared a $2.5 billion deal to buy 22 Apache AH-64 Block III attack helicopters and 15 Chinook CH-47F heavy-lift helicopters from Boeing.CCS approval, granted at a meeting Tuesday, means formalities have been cleared and the deal could be inked in the next two months, said a Defence Ministry official.
Source: India Panel Clears $2.5B Helo Deal With Boeing
For decades, India either bought British equipment, Russian, or strived to build indigenously. In the last decade or so, that really has shifted, and India has become a major market for US defense contractors.
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Marines get a closer look at Black Hornet Nano
MARINE CORPS BASE QUANTICO, Va. — The PD-100 Black Hornet has deployed with Marine Corps special operations teams, but the micro unmanned aerial vehicle’s manufacturer sees potential for significantly wider use among conventional combat forces.Created by Prox Dynamics, this handheld helicopter is a powerful surveillance tool that can be tough to detect. It was on display at the Modern Day Marine exposition.James Mitchell, a Marine veteran representing Prox Dynamics, said the Black Hornet — which the company calls a “personal reconnaissance system” — can track enemy movements, investigate suspicious objects, and help troops see down hallways or behind buildings. And it’s incredibly easy to use, Mitchell added, saying he learned to operate one after a 20-minute crash course.
Source: Marines get a closer look at Black Hornet Nano
We’re going to see more and more of these micro-UAVs in use. Will each platoon have one? Probably.
That’s going to change the perspective of the battlefield for a platoon leader. It’s going to be a lot harder to sneak up on a platoon, for sure.
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Ultra-Efficient Personnel Officer Loses Leave Request Forms Faster Than Ever
FORT HOOD, Texas — Just a few short days after completing the Adjutant General Officer Basic Course, Army 1st Lt. George McAllister is already earning accolades as the personnel officer for a Fort Hood based combined arms battalion by losing leave forms faster than any of his predecessors. While previous S-1’s for the battalion usually waited until the […]
Source: Ultra-Efficient Personnel Officer Loses Leave Request Forms Faster Than Ever
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Documents Requested for Female Rangers : People.com
A congressman who is a combat veteran and Ranger graduate has asked the Pentagon’s top Army leader to produce documents related to the performance of the females who began Ranger School at Fort Benning, Georgia earlier this year, PEOPLE has learned.In a letter obtained exclusively by PEOPLE, Rep. Steve Russell, R-Okla., gave outgoing Army Secretary John McHugh until September 25 to produce documents revealing the women’s test scores, evaluations, injuries, pre-training and more. The letter was delivered to McHugh’s Pentagon office on September 15.”The training of our combat warriors is paramount to our national defense,” Russell wrote to McHugh. “In order to ensure that the Army retains its ability to defend the nation, we must ensure that our readiness is not sacrificed.”The congressman is concerned because “sources at Fort Benning are coming forward to say the Army lied about women in Ranger School, that the women got special treatment and played by different rules,” according to a Capitol Hill source with knowledge of why the letter was crafted. “These folks say one thing, the Army says another. Congress needs to know the truth, and Russell reached out to find it.”
Source: Documents Requested for Female Rangers : People.com
Always good to see friend of the blog SKK published in People.
My own thoughts on the matter? Questions like this were inevitable. But comments about the women not carrying the guns have already been refuted by comments from their classmates at the press conference held immediately after graduation.
The question about recycling after phases is probably the most valid concern, but there’s room there. There are some fairly hard and fast rules at the Ranger School about how often you may recycle a phase. But the school isn’t the only party with input on the matter.
Let’s say Joe Smith has recycled each phase, and gets to Florida, and fails his patrols, and wants to recycle, and the school is willing to let him. At this point, Joe has been gone from his parent command something like five months, rather than the 61 days of the nominal course. His unit might just decide they’d rather have him back cutting grass and mopping floors than spending more time on TDY.
Obviously, that wasn’t the case with the two soldiers here. They were quite obviously hand picked (as were the other female volunteers) and it was clear that their commands would be expected to allow them as much time as needed away to either pass or fail.
Should Congress review the files? Sure. Just as long as they do so with an open mind, and not with a predetermined outcome in mind.


