19 janvier 2021 | International, Aérospatial
By: Jen Judson
WASHINGTON — The U.S. Army is tapping industry for drones that can deliver supplies to infantry brigade combat teams in the field, according to a request for information posted to the federal contracting website Beta.Sam.Gov on Jan. 13.
Army Futures Command's Sustainment Capabilities Development and Integration Directorate as well as the Marine Corps' Capabilities Development and Integration office began looking in earnest at a concept called the “Joint Tactical Autonomous Aerial Resupply System,” about two years ago with the hope of getting a capabilities development document signed in three years.
But the concept has been alive for much longer. In 2018, the JTAARS concept was on an evaluation list for the Joint Warfighting Assessment in Grafenwoehr, Germany.
The services plan to field the system by 2026.
The drone should already be technologically mature to demonstrate capability, weigh less than a Group 3 drone — or less than approximately 1,300 pounds — and be able to haul up to 800 pounds of supplies to the field to provide an organic sustainment capability for infantry brigade combat teams in a multidomain operational environment, according to the request for information.
The drone should also be able to operate in a 110-mile radius at day or night, and in bad weather conditions, as well as plug into current and future tactical command-and-control systems, the RFI read.
Setup time to launch a package should take 15 minutes, and two to four soldiers should be able to lift it out of a transport container, the RFI said. This means the system should be lightweight and easy to use, the document explained.
The drone must automatically launch, navigate in GPS-denied environments, drop cargo, land and return to its point of origin, the document added. The system should also be able to avoid obstacles and pick optimal flight paths and landing sites on its own, the RFI explained.
Turnaround time between missions should be minimal, according to the RFI, and the system should be modular and open in order to integrate a variety of payloads and software needed, but it also must be secure from cyberattacks.
The Army and Marine Corps have worked on autonomous resupply concepts for over a decade. Perhaps most well-known is the evaluation of Lockheed Martin's K-MAX unmanned helicopter, which had the capability to sling-load cargo. Two of the aircraft were evaluated for several years in Afghanistan beginning in late 2011; one aircraft crashed.
The services completed the operational assessment but did not pursue the capability beyond that.
While the Army has focused on robotic ground convoys for resupply — including developing leader-follower capability — it's expected that autonomous resupply will happen in the air before ground systems provide sustainment due to the increased complication of navigating unpredictable terrain and obstacles on land.
And as the commercial sector — such as Amazon and Google — continues to invest in the drone delivery market, systems designed for the task will become more reliable, more capable and less expensive, likely benefiting the U.S. military. That market is projected to be worth almost $29 billion by the late 2020s.
Responses from industry are due Feb. 12.
11 octobre 2022 | International, Terrestre
The move to quicken production may come as a surprise, given the Army originally planned to slow the rate of AMPV purchases across its five-year plan.
1 mai 2019 | International, C4ISR
DARPA's SIGMA program, which began in 2014, has demonstrated a city-scale capability for detecting radiological and nuclear threats that is now being operationally deployed. DARPA is building off this work with the SIGMA+ initiative that is focused on providing city- to region-scale detection capabilities across the full chemical, biological, radiological, nuclear, and explosive threat space. DARPA initiated a SIGMA+ pilot study last year known as ChemSIGMA to provide initial data and insights into how new chemical sensors using the existing SIGMA network would function. The chemical sensor package incorporates a chemical sensor, wind sensor and communications board into a weatherproof housing. Sensors report wind readings and real-time chemical information to a central cloud-hosted suite of fusion algorithms. “The algorithms were developed using a custom simulation engine that fuses multiple detector inputs,” said Anne Fischer, program manager in DARPA's Defense Sciences Office. “We built the algorithms based on simulant releases in a large metropolitan area – so we took existing data to build the algorithms for this network framework. With this network, we're able to use just the chemical sensor outputs and wind measurements to look at chemical threat dynamics in real time, how those chemical threats evolve over time, and threat concentration as it might move throughout an area.” In the pilot study, DARPA researchers from MIT Lincoln Laboratory, Physical Sciences Inc., and Two Six Labs, built a small network of chemical sensor packages. In partnership with the Indianapolis Metropolitan Police Department, Indianapolis Motor Speedway, and the Marion County Health Department, DARPA's performer teams deployed the network on-site at the Indianapolis Motor Speedway in late April 2018. The chemical sensor network and the data collected during events such as the 2018 Indianapolis 500 were critical to the DARPA effort, allowing the team to assess the performance of the sensors and network algorithms. These tests were conducted in an urban environment to ensure that the system could handle complex and stochastic signals from species that are ever present in a city's chemical background. Significantly, the network-level algorithm successfully improved system performance by correctly suppressing false detection events at the individual detector level. The group of DARPA researchers was also able to collect a large relevant data set and valuable user feedback that will guide ongoing system development efforts. Further testing with safe simulant/concert smoke at Indianapolis Motor Speedway, August 2018 During additional tests in August 2018, a non-hazardous chemical simulant was released in the empty Indianapolis Motor Speedway at a realistic threat rate. Concert fog was also released to serve as a visible tracer. The propagation of the visible tracer was observed in aerial photography, and ChemSIGMA sensors and algorithms determined the release location with unprecedented accuracy. The web-based ChemSIGMA interface allows the user to view alerts in real time across a variety of devices. Multiple trials were conducted over the course of several days assessing performance over a variety of meteorological conditions. Releases occurred during daytime and nighttime with a full range of wind directions and speeds. The ChemSIGMA prototype system detected all of the simulant releases and generated zero false alarms over the course of testing. Department of Defense simulant testing at Dugway Proving Ground, Utah, October 2018 “We're looking at how we might make this network more robust and more mature,” Fischer said. “For example, we implemented a network at Dugway Proving Ground as part of a DoD test for simulant releases, and have shown that the network can respond to a number of chemical simulant threats different than those used in Indianapolis, as well as built-in capabilities for mobile releases. Over the past few months, the team has used these data sets to further refine the algorithms, and plans to integrate and test them with the ChemSIGMA system in test events scheduled later this year.” The successful pilot and simulant test of the ChemSIGMA system at the Indy500 and Dugway Proving Ground provided valuable, relevant, and realistic data sets for validation and verification of the source localization and plume propagation algorithms. DARPA is currently extending the capabilities for networked chemical detection by advancing additional sensor modalities, including short-range point sensors based on techniques, such as mass spectrometry, and long-range spectroscopic systems. As these systems are further developed and matured, they will be integrated into the SIGMA+ continuous, real-time, and scalable network architecture to increase the system's capabilities for city-scale monitoring of chemical and explosive threats and threat precursors. https://www.darpa.mil/news-events/2019-04-30
9 novembre 2023 | International, Terrestre
The U.S. State Department has approved a potential sale of Abrams main battle tanks to Romania for an estimated $2.53 billion, the Pentagon said on Thursday.