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DEVCOM, Army Special Forces Collaborate with International Partner to Test Additive Manufacturing Technology

Monday, May 30th, 2022

ABERDEEN PROVING GROUND, Md. — On a battlefield in the future, Soldiers deployed to remote areas around the world will use sophisticated additive manufacturing printers to ‘print’ virtually everything they need, from food to shelter to weapons. The Army has made additive manufacturing a priority and Combat Capabilities Development Command, or DEVCOM, is supporting the effort with Project Prime, a collaboration with U.S. Army Special Forces and an international industry partner.

The Project Prime team consists of the U.S. Army 7th Special Forces Group (Airborne), or 7th SFG (A); DEVCOM’s International Technology Center — United Kingdom, or ITC-UK; DEVCOM’s Command, Control, Communications, Computers, Combat systems, Intelligence, Surveillance and Reconnaissance Center, or C5ISR; and Defend3D, a company based in the United Kingdom that enables secure transmission of remote 3D printing.

Special Forces Soldiers tested the technology by repeatedly adding and printing additive manufacturing files using Defend3D’s Virtual Inventory Communication Interface, or VICI. VICI provides a server application that manages the virtual inventory, assigns rights to remote manufacturers and provides the product in a ‘one-click-print’ format with minimal training for the end-user to securely stream.

“Despite a network connection categorized commercially as having low to no connection, VICI facilitated speedy, secure and accurate printing. Based on expectations set at the beginning of the project, VICI did everything we needed it to do, and 7th SFG (A) was satisfied with the system performance and endorsed the capability for further development and implementation,” said Dr. Patrick Fowler, DEVCOM Global Technology advisor at ITC-UK.

Each DEVCOM ITC has a Global Technology advisor who scouts technology in their area of operation. Project Prime began when a DEVCOM global technology advisor was scouting additive manufacturing technology in the Atlantic region, which includes London, United Kingdom; Paris, France; Frankfurt, Germany; and Tel Aviv, Israel. The ITCs, which are part of DEVCOM’s global enterprise, serve as the forward-deployed ‘eyes and ears’ of the Army Science and Technology Enterprise. Other DEVCOM ITCs include: North America; South America; Northern Europe; Southern Europe; Northeast Asia; Southeast Asia and the Southern Hemisphere.

VICI ensures end-to-end encryption by enabling organizations to store their designs locally and use the virtual inventory to manufacture parts in remote locations. For example, a deployed Soldier communicates a need, such as a spare part or a modification to an existing part, to the computer-aided design, or CAD, element at 7th SFG (A). The CAD element either designs the part from scratch or selects from a database of commonly used parts. This is then streamed to the Soldier in the field, who prints the part. Because the file is never sent, VICI prevents adversaries from accessing the information and identifying vulnerabilities in equipment and capabilities.

“We made it a priority to pursue avenues that will allow us to operate in environments that are not conducive to regular resupply efforts. For detachments to stay in the fight in these environments, we explored systems that operate outside the conventional supply chains. Project Prime’s deployable 3D printer and VICI software enables secure transmission and an easy-to-use interface,” said Chief Warrant Officer 2 Jesse Peters, Innovation Cell, 7th SFG (A).

Other benefits of the technology include:

The 3D printer operator does not need to be an expert in 3D printing to print the required files.

The interface prevents overloading the network since forward-deployed Soldiers only see objects they have requested for their mission.

It securely stores files in a sharable repository, including files created by the Department of Defense and coalition networks.

“Imagine this scenario — a clever Green Beret on a remote base develops a novel attachment for an existing Unmanned Aircraft System, which is stored in VICI. Then, a clever Airman across the world at a remote airfield sees it and adds his/her twist. Next, a British Soldier prints it and starts using it in his/her own operations,” Fowler said.

During the training event, feedback was gathered in real-time as the deployed Soldiers communicated with the 7th SFG (A) Innovation Cell. Other information was collected after the training, including the pros and cons of the system, software interface, training requirements and long-term durability.

7th SFG (A) plans to train more of their Soldiers on the technology to support a U.S. Army Southern Command deployment. Once the deployment is completed, ITC-UK will document all of the activities and achievements of Project Prime and make it available to the broader Department of Defense community. The information will benefit other DEVCOM centers and research laboratory, particularly the C5ISR Center, which focuses on securing communications to the tactical edge. The technology may also fill gaps with other Army units.

“We’re looking for funding to further develop VICI to make it operable on a cell phone or a small device, including a Raspberry Pi, which is a very small computer that plugs into a computer monitor, TV, or similar small end-user devices. This will make the solution, which is currently used on a laptop, even more deployable,” Fowler said.

By Argie Sarantinos, DEVCOM HQ Public Affairs

SCUBAPRO Sunday – SEALs Birthday

Sunday, May 29th, 2022

On 25 May 1961, President John F. Kennedy, addressing a joint session of Congress, delivered a speech that most people remember as his challenge to the country to put an American on the moon before the end of the decade. The most important part of that speech you seldom hear about. But, it mandated that the military broaden its numbers and the use of Special Operation in all branches of service: “I am directing the secretary of defense to expand rapidly and substantially … the orientation of existing forces for the conduct of … unconventional wars. … In addition, our special forces and unconventional warfare units will be increased and reoriented. …

The East Coast and West coast teams have always joked about what team is older, Team One, or Team Two. Team Two says they are because of the 3-hour time difference, and the west coast says they are because they supposal received their message to commission first.  But this isn’t really about that. The SEAL Teams use 01 Jan 1962, the day the teams were commissioned as their birthday. But if you look through old messages, you can find about different dates that you could say should or could be the birthday of SEAL Teams. Before Kennedy gave his speech, the Navy and all the other branches had already started to plan for a new kind of warfare and a new group to fight it. The U.S. has just ended significant involvement in Korea and sent advisers to Vietnam around 1955, so we had an idea of what the next generation of warfare might look like.  

To augment present naval capabilities in restricted waters and rivers with particular reference to the conduct and support of paramilitary operations, it is desirable to establish Special Operations teams as a separate component within Underwater Demolition Units One and Two. An appropriate cover name for such units is “SEAL” being a contraction of SEA, AIR, LAND.

– Vice Adm. Wallace M. Beakley,
Deputy Chief of Naval Operations, 05 Jun 1961

I love that the name “SEAL” started as a cover name, I am sure they never thought of what that name would come to mean. I say that in a good way and also a little wrong. I miss the days of being quiet professionals.

The Chief of Naval Operations, Adm. Arleigh Burke, in a memo dated 11 Jul 1960, tasked Vice Adm Beakley with studying how the Navy could contribute to unconventional warfare. Beakley responded to that tasking in a memo dated 12 Aug 1960, saying, “Navy Underwater Demolition Teams and Marine reconnaissance units were the logical organizations for an expanded naval capability in unconventional warfare.” Beakley further recommended that a working group be formed to study how the Navy could “assist or participate” in covert operations. Then, on 13 Sept 1960, an Unconventional Activities Working Group was formed. Like the military now, the progress was slow, and on 10 Mar 1961, when the Navy’s Unconventional Activities Committee presented a mission statement for the new special operations unit and officially used for the first time the acronym “SEAL.”

Beakley sent another memo saying, “If you agree in the foregoing proposals, I will take action to establish a Special Operations Team on each coast.” Burke wasted no time in giving the green light. On 05 Jun 1961, the CNO issued a letter notifying the commanders in chief U.S. Atlantic, U.S. Pacific, and U.S. Naval Forces Europe about the Navy’s intentions regarding SEAL units. So, if you look at all the about dates, you can choose 25 May, 05 Jun, 13 Sept, 10 Mar or 01 Jan.  I do not really care about what date that it happened on; I am just glad that it did, and I think it is good to look back at the process that went from idea to a finished product.

Oh, and Team Two is the Oldest Team.

Air Force Announces New Mustache Policy, Sister Service and Joint Unit Patch Update

Saturday, May 28th, 2022

ARLINGTON, Va. (AFNS) —  

The Air Force recently published a memorandum outlining updates to the Department of the Air Force Instruction 36-2903, Dress and Personal Appearance of United States Air Force and United States Space Force Personnel, which include mustache, sister service and joint unit patch wear guidance. The updates are effective immediately for Airmen.

“These changes will allow Airmen additional flexibilities as to how to wear mustaches” said Gwendolyn DeFilippi, acting Deputy Chief of Staff for manpower, personnel and services. “Additionally, allowing Airmen to wear sister-service patches in their current color configuration influences cohesiveness and pride while assigned to joint organizations.”

Mustaches: No portion of the mustache will extend below the lip line of the upper lip. Additionally, the mustache will not go beyond a horizontal line extending across the corners of the mouth and no more than 1/4 inch beyond a vertical line drawn from the corner of the mouth.

Patches: Airmen assigned, attached, detailed, or activated in support of sister-service units or joint organizations can now wear the unit’s patches in accordance with the sister service or joint organizations wear instructions.

The badges or patches can be worn in the sister service or joint organization’s color configuration and will not be converted to the spice brown color.

DAFI 36-2903 takes precedence if a sister service or joint organization wear instructions cause a conflict in Air Force patch configuration guidance, i.e. the wear instruction might switch a patch designated as a “left sleeve” patch to the right sleeve.

These updates were based off feedback provided to senior leaders and the updated DAFI will be published at a later date.

Secretary of the Air Force Public Affairs

FirstSpear Friday Focus: Remembrance

Friday, May 27th, 2022

This Memorial Day, we at FS take time to reflect on the sacrifice’s on behalf of those who paid the ultimate sacrifice. The price of freedom isn’t free.

DEVCOM Soldier Center Designs Protective Jumpsuit for Elite Firefighters

Thursday, May 26th, 2022

NATICK, Mass. — Some heroes wear capes, and some wear jumpsuits designed by the U.S. Army Combat Capabilities Development Command Soldier Center, or DEVCOM SC.

America’s smokejumpers literally dive into danger. They are an elite group of firefighters who parachute into remote areas to put out wildfires. They need and deserve the very best equipment to do their jobs effectively and safely. DEVCOM SC’s Design, Pattern & Prototype Team in the Soldier Protection Directorate took on the task of updating the jumpsuits that smokejumpers wear when they take the leap to put out wildfires.

“The rough terrain jumpsuit is worn by smokejumpers working for the United States Department of Agriculture’s Forest Service and the Department of Interior’s Bureau of Land Management,” said Patti Bigrig, a clothing designer on the Design, Pattern & Prototype Team, or DPPT. “There are about 400 to 500 smokejumpers within the United States. Their mission is to parachute into remote areas, where vehicles have no access, to extinguish forest fires.”

Zach Glover, one of the smokejumpers who aided DEVCOM SC in a fit and integration check for the new and improved rough terrain jumpsuit, explained that the jumpsuit is used to protect smokejumpers from any kind of impalement from tree limbs and has a built-in letdown system if they get caught in a tree. The jumpsuit adds some fire protection as well.

Glover values the opportunity for smokejumpers to provide input into the new prototype. “The new suit will improve mobility, be lighter weight, and allow for better protection, range of motion, and freedom of movement,” said Glover.

The effort is a perfect fit for DEVCOM SC’s expertise. “DEVCOM SC’s long-term expertise in developing clothing to meet Warfighter needs benefits this project in all aspects,” said Annette LaFleur, DPPT’s team leader.

“We not only look at the musculoskeletal structure and movement of the human body within the framework of a clothing item but how the necessary equipment works cohesively with the garment to enhance performance and mission success,” said Bigrig. “We listen to the user to find out what isn’t working and devise a solution.”

DPPT is adept at designing for function and specific occupational specialties — whether it be a protective ensemble for a fuel handler or bomb suit for an explosive ordnance disposal operator or a new rough terrain jumpsuit for smokejumpers. On a daily basis, the team works to meet the needs of Warfighters and other users by translating user requirements into tangible prototypes. The prototypes incorporate materials and features to meet the specific needs of the user. For the rough terrain jumpsuit, the prototype includes padding with the proper impact protection, as well as flame-retardant base materials.

“The team starts by sketching design options, discussing ideas with the user before drafting patterns and sewing the first prototype,” said LaFleur. “We design, test and validate, ensuring the item is user tested and approved. We don’t want the user to have to think about or be burdened by their clothing or gear. If they are solely focused on their mission, then we know we have done our job well.”

The rough terrain jumpsuit prototype includes improvements to features and materials.

“Due to the natural rough terrain in which these parachutists are entering, the current jumpsuit has a short field life,” said Bigrig. “The current jumpsuit is made from Kevlar, which has great puncture resistance but very low abrasion resistance. It quite frequently requires repair or replacement. Kevlar is sensitive to, and weakened by, exposure to sunlight, and this factor also plays into a shorter use expectancy. The goal of this new jumpsuit is to increase the durability, protection and extend the life of its use.”

Melynda Perry, a textile chemist on DEVCOM SC’s Textile Material Evaluation Team, ran tests on the current jumpsuit material and suggested some materials to be integrated into the new suit. The new suit includes two layers — a base layer and a higher abrasion resistant layer. The goal is to identify lighter weight materials with improved abrasion resistance that have lower amounts of aramid fibers to offer higher protection against UV exposure, extending the life of the jumpsuit.

The new jumpsuit prototype also features an improved collar and integrated impact resistant foam. It also includes an adjustable side pocket at the bottom of the jumpsuit trousers. The pocket is used to hold rope and other gear.

Bigrig conceived the idea for the adjustable pocket, and Chong Whitfield, a DPPT production designer, refined the idea. Being able to adjust pockets helps improve safety.

“It’s the Goldilocks pocket,” said Bigrig. “You can adjust it so that it is just right.”

User input, which plays a key role in all of DEVCOM SC’s product development, is driving the design of the new jumpsuit.

“We had a lot of conversations with the smokejumpers and gleaned great information on how we could make this jumpsuit into something that would greatly improve on what they currently had,” said Bigrig. “It is a wonderful relationship because we adapted the design to the feedback we received.”

Prior to working with the DPPT, the smokejumpers already had a good working relationship with DEVCOM SC’s Air Drop Team, part of the Soldier Sustainment Directorate. This relationship led to the smokejumpers seeking out DPPT.

“We viewed videos of their donning and doffing process, deployment from the plane along with the five-point landing procedure,” said Bigrig. “We had a lot of conversations with the smokejumpers and gleaned great information on how we could make this jumpsuit into something that would greatly improve on what they currently had.”

Other DEVCOM SC teams were also involved in the effort. Bigrig explained that the DPPT has been leveraging the expertise of DEVCOM SC’s Ballistic and Blast Team’s Chuck Hewitt to test impact resistant materials to integrate into the suit. Perry has also been instrumental in testing and providing recommendations for best materials for the new jumpsuit.

“There are people here who are experts in their fields,” said Glover. “They are experts in design, textiles, blunt impact ballistics and parachutes. We are firefighters and smokejumpers first and working with these experts is really beneficial for us.”

Bigrig is proud to work with the smokejumpers on the new Rough Terrain Jumpsuit.

“The users are firefighters with a high degree of ingenuity, and we are honored to help them take the jumpsuit to the next level,” said Bigrig.

By Jane Benson, DEVCOM Soldier Center Public Affairs

Emerald Warrior 22.1 Concludes for AFSOC, Czech Special Forces

Tuesday, May 24th, 2022

HURLBURT FIELD, Fla. —  

Air Force Special Operations Command wrapped up its 15th Emerald Warrior exercise that provided realistic and relevant training to prepare special operations forces, conventional forces and international partners for conflict in an evolving, strategic environment. 

The EW 22.1 planning team applied lessons learned from real-world operations to train and ready forces to the joint force, while staying focused on security priorities laid out within the 2022 National Defense Strategy; specifically, pacing strategic competitors. Trained, credible forces and strong international partnerships are pivotal to this effort.  

“In this year’s iteration, we improved our approach to command and control through the employment of the Special Operations Task Group and Special Operations Task Unit,” said U.S. Air Force Col. Kevin Koenig, exercise director of Emerald Warrior. “This dispersion of leadership allowed for real-time, on-the-ground decision making and allowed commanders to perform operations quickly and more efficiently. We exercised our agile combat employment capabilities and focused additional training on non-kinetic skillsets to include public affairs and information operations. With our partner nations and sister services, our goal is to continue to deter adversaries, now and in the future, in all domains.” 

The objective for this year’s EW was to gain and maintain an advantage on the battlefield and in the information environment, and grow kinetic and non-kinetic effects above and below the threshold of armed conflict from strategic competitors. 

This annual exercise is an opportunity to further test and improve future approaches to AFSOC units like the mission sustainment teams. These MSTs established forward-operating bases by providing initial site security, receiving cargo and personnel, and setting up shelter. 

“It was very impressive how the 1st SOW and 27th SOW [from Cannon Air Force Base, New Mexico] capabilities came together in order to forward stage our contingency locations during this exercise,” said U.S. Air Force Lt. Col. Travis Deutman, commander of the Emerald Warrior SOTG. “As these capabilities continue to progress, it’ll definitely be something that’ll be useful within AFSOC.” 

In line with AFSOC’s Strategic Guidance, the exercise fuels on-going innovation and experimentation efforts within the command.   

“The most important idea to understand about Emerald Warrior is that as AFSOC implements force generation, we’re building new concepts; the two biggest concepts being the SOTG command team and our MSTs,” said U.S. Air Force Col. Michael Haack, deputy director of operations for AFSOC. “These concepts combine to enable the force to do agile combat employment in a contested environment. We increased our agility; we pushed our decision making forward to the lowest level. These teams are trained and enabled, and ready to fight the fight in the contested and uncontested environment.” 

In addition to introducing new command and control structure, the exercise continued as a forum of collaboration between the U.S. and its international partners and allies. This year, AFSOC hosted partners from the Czech Republic. 

“We look forward to working with our partner nations and coalition forces from across SOF,” said Haack. “Emerald Warrior allows us to problem solve in an exercise environment, establish communication and build enduring relationships. Those relationships with our Czech partners and fellow SOF coalition forces are critical so we’re not meeting them for the first time down range.” 

By 2nd Lt Cassandra Saphore, Air Force Special Operations Command Public Affairs

Soldiers Give Feedback on Emerging Defense Capabilities

Monday, May 23rd, 2022

FORT LEONARD WOOD, Mo. — Leaders from U.S. Army Futures Command and the Maneuver Support Center of Excellence wrapped up the two-week Maneuver Support, Sustainment and Protection Integration Experiments — or MSSPIX — this week, giving Army leaders and capability developers a chance to gain insights into the viability of emerging technologies through credible and validated operational assessments.

According to Kyle Henry — the chief of the center’s maneuver support battle lab experimentation branch and one of the key organizers of the event — the annual MSSPIX is an important venue for conceptual and materiel development because of the feedback provided by the very Soldiers who may one day use the technology to assist in accomplishing missions.

“Without the Soldiers, this would be a glorified tech demo,” he added. “That’s not what we’re trying to do. We want a non-biased look at these technologies, these capabilities.”

Henry said the overarching focus of this year’s MSSPIX was to enable protection and sustainment solutions in support of what’s called multi-domain operations — the Army’s attempt to address competition and potential conflict between the United States and countries with relatively similar warfighting capabilities across air, land, sea, space and cyberspace. This includes the mitigation of hazards, the preservation of assets and the protection of Soldiers.

“The technologies being assessed are designed to minimize a Soldier’s presence on the battlefield, or otherwise aid in protecting lives, while also improving the ability to defeat enemy forces, disrupt enemy capabilities and physically control spaces,” Henry said.

During a demonstration day event on May 17, Sgt. Daniel Alexander, with Fort Leonard Wood’s 595th Sapper Company, and Spc. Wyanet Nakai, from the 212th Military Police Company at Fort Bliss, Texas, operated what’s being called the Mobile-Acquisition, Cue and Effector, or M-ACE — one of 14 capabilities assessed this year by a group of more than 20 Soldiers from installations across the country.

Integrating radar technologies with a remote cue system, M-ACE can lock onto and disable a moving target, such as a drone.

Having a system like this in a combat environment is ideal for military police, Nakai said, as they are typically considered what’s called “mounted,” meaning they stay inside their tactical vehicles.

“What we’re doing is controlling the weapon from inside,” she said. “This set up is really nice, and it’s safer.”

For a combat engineer, like Alexander, whose missions require both mounted and unmounted capabilities, it’s nice to know the Army is trying to minimize Soldier risk on the battlefield.

“It’s nice to know we’re going another route for combat [military occupational specialties],” he said. “We go outside the wire, put our lives on the line, and with technology like this, it takes the Soldier out of many of those situations — it minimizes the dangers.”

This was the first time either Alexander or Nakai have participated in MSSPIX. Alexander, originally from Bolingbrook, Illinois, said he was happy for the opportunity to provide inputs that may one day help improve the Army’s ability to more effectively and safely meet its mission requirements.

“I hope other Soldiers in my unit get this opportunity,” he said.

Nakai, from the Navajo Nation in Utah, said it’s fascinating to be part of a project decades in the making.

“I didn’t know what MSSPIX was,” she said. “I’m amazed by how much time goes into these technologies — someone said 18 years for this one. It blows my mind how much thought and effort goes into building a system like this, and they want to keep improving it.”

By Fort Leonard Wood Public Affairs Office

SCUBAPRO Sunday – What to Wear Under Your Wetsuits?

Sunday, May 22nd, 2022

Most people wear something under their wetsuit to help with getting their wetsuit on and off easier. The other reason for wearing something under your wetsuits is that the extra layers can help keep your body warmer. Instead of wearing a thicker wetsuit that will restrict your movement, it allows you to wear a thinner suit that will give you more flexibility. You can wear a short sleeve top or bottom to help keep your core warmer. The other thing to think about is the air temperature/ wind on your way to the dive site. Suppose you are worried about the air temp/ wind when you are traveling to the dive site. In that case, you can wear heavyweight GoreTex or a linebacker jacket (the kind made for helo’s flights/ football players wear on the sidelines) is excellent to have as you can take it off before the dive and put it on when you are done.

SCUBAPRO 1.5mm Everflex SS top

For colder temperatures, adding layers underneath the suit is the way to go. You have several options to choose from. If you already have a thinner wetsuit that you usually use for warmer environments, a 1mm rash guard, or any other type of garment that’ll provide you with the added warmth around your chest will help. SCUBAPRO makes a great 1.5mm top and bottoms in short and long sleeves, shorts, and long pants. This 1.5mm is very warm, and to me, it feels like I am wearing a 2-3mm.

SCUBAPRO 1.5mm Everflex long pants

When you have to worry about the wind, most surf wetsuits or wetsuits glossy like surf suits are made to stop the wind. That all-suit surf suits are not great for diving as most are not made from a material (yes, surfing is different than diving) that is designed to be used underwater for long periods. Some people like to wear nothing between them and their wetsuits. This can be painful after wearing a wetsuit for a long time, especially on a long wet Zodiac ride. Due to the constant rubbing against their skin, it begins to chafe ( AKA Baboon a$$). Usually, the neck, armpits, behind the knees, and the crotch are the first to go. You can apply anti-chafing gel/ Vaseline to help with this on long dives and rides. There is also stuff like Butt Paste, Triple paste, or Anti monkey butt paste.

SCUBAPRO 1.5mm Everflex LS top

You can also wear dive skin or bike shorts; this will help with donning and doffing your suit on and off also. I have started to use compression shorts. (They make tops also) They are made with a material called Celliant; it is a mineral-infused fabric to take the energy you give off when you work and reflect it into your muscles, increasing blood flow and helping them work harder. As your body emits energy, the mineral-infused fabric absorbs & reflects it, improving endurance. (I know this sounds crazy, but I am a big believer in Celliant)

Whatever you decide to wear, keep in mind the water/ air temperature, duration of the dive, and what you will be doing. Also, one reason you should make sure to keep a logbook of all your dives. That way, you can look up what you have used in the past for this situation. That should put you at a good starting point. Now that you’re aware of your options, it’s time to get to specifics. What type of undergarment is right for your needs, or do you even need to wear anything under your wetsuit at all?

SCUBAPRO 1.5mm Everflex

Well, that depends on you. In warmer waters, you can get away with wearing undergarments with minimal coverage (swimsuits, trunks, and other similar items)—or even nothing at all. Many people prefer to go commando under their wetsuits, but it’s all a matter of preference. If you plan to rent the suit, however, you’re probably going to want to wear something underneath.

SCUBAPRO 1mm Topical wetsuit

For colder temperatures, adding layers underneath the suit is the way to go. You have several options to choose from. Suppose you already have a thinner wetsuit that you usually use for warmer environments. In that case, you can opt to add a jumpsuit, rash guard, or any other type of garment that’ll provide you with the added insulation you need. This way, you won’t have to purchase another suit.

SCUBAPRO Hybrid Hood Vest

Or, if you’d instead go naked warrior underneath, you can get a thicker wetsuit. Deciding what to wear ultimately depends on the environment (and temperature) you plan to dive in, how sensitive your body is too cold, and many other variables. Make sure to consider all factors before you buy anything, and always try it in training before you use it for the first time when it matters the most.