Showing posts with label helicopters. Show all posts
Showing posts with label helicopters. Show all posts

Friday, May 4, 2012

Intercommunication system aims to reduce costs, ease aviation integration


ABERDEEN PROVING GROUND, Md. –  Army engineers are designing and fabricating a mobile communication test console with a UH-60 digital intercommunication system. 

The purpose of the UH-60 digital intercommunication system is to ease the integration of test radios in both lab and operational environments for evaluation on aviation platforms, said Christine Adelfio-Keehn, computer engineer with the Communications-Electronics Research, Development and Engineering Center. Because integration procedures and flight times are costly, the system is designed to ease the installation and removal of components. 

The UH-60 digital intercommunication system supports both digital and analog radio systems and will allow testers to examine antenna performance along with system performance for Wideband Networking Waveform, Soldier Radio Waveform and Mobile User Objective System radios. 

The work on the intercommunication system is in support of Program Executive Office Aviation - PM Aviation Mission Equipment.  Recently, the system has been bench tested in a laboratory environment within the Aviation Antenna & Integration Team, located at CERDEC Flight Activity’s Hangar 5, at Joint Base McGuire-Dix-Lakehurst, N.J.

Once a full scale laboratory test is concluded, there are future plans to install the system on a CERDEC Flight Activity UH-60 Blackhawk for airborne operational testing.

Wednesday, February 8, 2012

Full Moon Over Washington

A United States Marine Corps helicopter is seen flying through this scene of the full moon and the U.S. Capitol on Tuesday, Feb. 7, 2012, from Arlington National Cemetery.

Image Credit: NASA/Bill Ingalls

Thursday, December 1, 2011

Apollo 17 Splashdown

The Apollo 17 spacecraft, containing astronauts Eugene A. Cernan, Ronald E. Evans, and Harrison H. Schmitt, glided to a safe splashdown at 2:25 p.m. EST on Dec. 19, 1972, 648 kilometers (350 nautical miles) southeast of American Samoa.

The astronauts were flown by recovery helicopter to the U.S.S. Ticonderoga slightly less than an hour after the completion of NASA's sixth and last manned lunar landing in the Apollo program.

Image Credit: NASA

Thursday, November 17, 2011

V-22 Rotocraft Cross-Section

Helicopters and rotorcraft provide many useful civil and military functions without the need for airports and runways. However, accurately predicting vehicle performance and noise production is very challenging and requires a more accurate technical approach to understand the interaction between rotor blades and the rotor blade vortices. Scientists supporting NASA's Subsonic Rotary Wing Project are developing state-of-the-art simulation tools to more accurately predict these flowfields. Use of these tools provide new insight into the rotor wakes, and will help improve rotorcraft performance. This snapshot of a V-22 rotorcraft in hover shows a cross-section of the blade vortices and turbulent flow, where magenta is high vorticity (spin) and blue is low. The Pleiades supercomputer at the NASA Advanced Supercomputing facility has allowed scientists to greatly improve the prediction accuracy of rotor blade aerodynamics. These tools will allow engineers to develop faster and quieter rotorcraft with larger lifting capability.
 
Image Credit: NASA/Ames Research Center/Neal Chaderjian and Tim Sandstrom

Tuesday, November 8, 2011

Ten Technologies: A Brief Look at Military Evolution — Helicopters

Learn more about Vietnam War technology from the best Vietnam War books written by the heroes who served there.

By Carla Voorhees,
Defense Media Activity

This is the sixth in a series of 10 technologies integral to the United States military since World War I.

The helicopter was rapidly developed for the United States military after Igor Sikorsky, a Russian-American, found a way to compensate for the torque effect (where the body tends to rotate opposite the direction of the rotors) in the late 1930s. The first military design was designated the Sikorsky Aircraft Corporation’s R-4, and was used primarily for rescue operations performed by the Army Air Forces Air Rescue Service, starting in 1944.

Between the end of World War II and the beginning of the Vietnam War, helicopter use and technology exploded, especially by the U.S. Marine Corps. The helicopter allowed for a quick-moving, agile force that could react to enemy offensives, like airborne cavalry, and deposit troops, weapons, and supplies in the field even in difficult terrain.

Variants include the CH-47 Chinook transport helicopters, which can handle up to 19,500 lbs, and the CH-54 Skyhook – essentially a flying crane.

The U.S. Army benefits from helicopters, too, with a Program Executive Office Aviation that works exclusively on helicopters, aviation systems, UAVs, and non-standard rotary-wing aircraft.

Thursday, October 6, 2011

Fort Campbell’s New Helicopter Simulator Provides Virtual Training

If you're into military technology, check out these great advanced police technology articles telling you about the latest technological edge in law enforcement!

By Megan Locke, Fort Campbell Courier staff

FORT CAMPBELL, Ky., Sept. 29, 2011 — It looked like a scene out of a science fiction movie on post Wednesday morning as a group of 101st Combat Aviation Brigade (CAB) noncommissioned officers trained on a new simulator for the first time.

The Non-rated Crew Member Manned Module, or NCM3 (PDF), came to post last week to be used for the first time beyond the testing stages. The module is a simulator that was created to train helicopter crews on the rear of both the CH-47 Chinook and UH-60 Black Hawk.

Through specially created virtual reality glasses, which fit as night vision goggles would, Soldiers can perfect gunnery tasks. Also included in the simulator are ways to perfect and practice sling load and hoist operations without ever leaving the ground.

The training can be linked with the Aviation Combined Arms Tactical Trainer, allowing crew chiefs and other Soldiers to communicate seamlessly with the helicopter’s pilot who may be training in a different simulator.

The NCM3 includes task-driven scenarios, which can be adjusted by the instructor to include weather conditions, lighting variations and other specific situations.

“The weapons are M240[H]s (PDF) that we actually use in the Army,” explained Sgt. 1st Class Richard Madill. “The only thing they did was they took the mechanism out that allows it to fire. That’s the big modification that’s made. It has sensors all over to allow you to control it. It tells you when you have your mock ammo loaded, it tells you when they pull the triggers and different things like that.”

Even the simplest of everyday occurrences adds realism to the experience.

“It creates thunderstorms, and when it has the thunderstorms, you can actually hear the thunder,” Madill said. “You can see the lighting.”

Madill is a subject matter expert from the Directorate of Training and Doctrine at Fort Rucker, Ala., who actually helped in the design of this one-of-a-kind simulator.

The realism goes beyond what the gunners or other crew members might see on the screen during the simulated flight. The weaponry is also affected by a control load box, which gives the Soldier a sense of wind resistance on the gun.

“Right now, this weapon is hard to push in the opposite direction because it’s simulating that we’re flying forward very fast,” Madill said.

When equipped with the virtual glasses, Soldiers feel as if they are on board a helicopter, and they can even lean out simulated bubble windows created for the CH-47.

“He’s able to look up at the engine compartment and make sure it’s not on fire or leaking oil,” Madill explained of the simulated window’s importance to a crew member.

The simulator is good for a number of reasons, mainly because of safety, efficiency and flexibility. The simulator eliminates the need to schedule a helicopter for training, saves on fuel and ammunition costs, and lessens many of the risks faced during real flights. Inclement weather outside also does not affect the progression of training in the simulator.

“Prior to this trailer, we [didn't] have a trainer for the backseaters,” Madill said. “For the crew chiefs, door gunners, we don’t have a trainer to be able to do that. And this allows us to bring a guy out here and start some sort of aircraft progression, without actually using blade time.”

With increased safety, the simulator allows easy training on scenarios that would take much more planning and coordination otherwise.

“This allows us to train on tasks that we don’t get a chance to do normally,” Madill said. “We’re able to do this rescue hoist, which in real life, it’s dangerous to put a live person on the hoist. It’s dangerous, but we need to be able to train it. This allows us to train it here. We don’t have to use blade time to do that, we don’t have to (risk) someone’s life.”

Madill added the simulator should increase “unit cohesion, crew cohesion and crew coordination.” Sgt. Weston Williams, 101st CAB, spent a significant amount of time in the gunner’s position in the simulator’s UH-60 Black Hawk setup. He agreed with Madill’s assessment, adding that the “high-tech video game” feel would be ideal for training first-time crew members.

“It will give a chance to evaluate the new guys first and see where they stand,” he said.

Fellow Sgt. Nolin Worthley, 101st CAB, said the scope of the scenarios available would aid in training for combat situations.

“You’d be surprised how many similarities there are between this and the real [helicopter],” he said. “I think it is fantastic. You can do a whole lot of things. This is going to actually make it where I can at least get people talking correctly on the radios before I’m actually putting them in [a helicopter].”

This article first appeared on Army.mil.

Tuesday, September 20, 2011

Sikorsky Helicopter

In this image taken in 1944, one of Langley Research Center's Sikorsky YR-4B/HNS-1 helicopters is seen in the 30 x 60 Full Scale Tunnel. A science technician sets up camera equipment for stop-action rotor-blade photos. The Sikorsky Company built hundreds of R-4 helicopters during World War II. It was the first mass-produced helicopter.

Image Credit: NASA