Researchers at the U.S. Naval Research Laboratory flew their fuel cell powered Ion Tiger UAV for 48 hours and 1 minute on April 16-18 by using liquid hydrogen fuel in a new, NRL-developed, cryogenic fuel storage tank and delivery system.
This flight shatters their previous record of 26 hours and 2 minutes set in 2009 using the same vehicle, but with gaseous hydrogen stored at 5000 psi.
Liquid hydrogen is three times denser than 5000-psi compressed hydrogen. The cryogenic liquid is stored in a lightweight tank, allowing more hydrogen to be carried onboard to increase flight endurance. Success in flight requires developing a high quality, lightweight insulated flight dewar for the cryogenic fuel, plus matching the boil off of the cryogenic hydrogen to the vehicle fuel consumption.
“Liquid hydrogen coupled with fuel-cell technology has the potential to expand the utility of small unmanned systems by greatly increasing endurance while still affording all the benefits of electric propulsion,” said Dr. Karen Swider-Lyons, NRL principal investigator.
Although long endurance is possible with conventional, hydrocarbon-fueled systems, these are usually loud, inefficient, and unreliable in this aircraft class. Similarly, small, electric, battery-powered systems are limited to endurances of only several hours.
The Latest Bing News on:
Electric UAV
- Bangkok Cable, INNOPOWER Forge Green Energy Pacton May 7, 2024 at 10:10 pm
In a landmark move that promises to revolutionise Thailand's power distribution network, Bangkok Cable Co., Ltd. (BCC), Thailand's leading manufacturer of electric wires and cables, and INNOPOWER Co., ...
- DSA 2024: Malvus Sense unveils hydrogen-electric-powered VTOL UASon May 7, 2024 at 5:00 pm
(Janes/Vinod Kumar CV) Malaysian firm Malvus Sense unveiled the CW-25H, a new hydrogen-electric-powered vertical take-off and landing (VTOL) unmanned aircraft system (UAS), in collaboration with ...
- Ageagle Aerial Systems Inc (UAVS)on May 7, 2024 at 1:01 pm
AgEagle Aerial Systems (UAVS) reported Q3 EPS of $. Revenue for the quarter came in at $5.5 million, versus $0 reported last year.
- Pyka reveals militarised version of Pelican cargo UAVon May 6, 2024 at 2:02 pm
Electric aircraft start-up Pyka is expanding into the defence realm, teaming with defence systems provider Sierra Nevada to offer a militarised version of the company's Pelican uncrewed cargo aircraft ...
- UC3M participates in European research project to reduce aviation's environmental footprinton May 5, 2024 at 5:00 pm
RefMap scientific project, in which the Universidad Carlos III de Madrid (UC3M) is participating, proposes solutions to reduce aviation's environmental footprint. For example, they are already ...
- HECO to perform aerial inspectionson May 3, 2024 at 10:08 am
Hawaiian Electric will be using unmanned aircraft, or drones, for aerial inspections of its infrastructure in the Ha‘ikū-Pa‘uwela area on Friday, May 3, from 8:30 a.m. to 4 p.m., weather permitting.
- Vietnam Vertical Take-off and Landing (VTOL) UAV Market Trends, Growth Statistics, Size, Share, Revenue and Forecast to 2024 to 2032on May 1, 2024 at 11:33 pm
According to the latest report by Report Ocean, titled this “Vietnam Vertical Take-off and Landing (VTOL) UAV Market” Report gives evaluation and insights primarily based on authentic consultations ...
- The payload versatility of the VAPOR 55 MX creates opportunities for commercial drone operationson April 30, 2024 at 5:15 am
While the exhibit floor of XPONENTIAL features countless products and innovations that define the drone industry, there was no better place to understand what it means for this variety to make a diffe ...
- Army heads into competitive flight demos for future tactical droneon April 25, 2024 at 5:00 pm
Soldiers check out Textron's Aerosonde HQ at the Future Tactical Unmanned Aircraft System rodeo at Fort Benning, Georgia in March 2021. Textron and Griffon Aerospace were selected to proceed in a ...
- Global Air Traffic Control System For Unmanned Aircraft Goal Of New Partnershipon April 24, 2024 at 8:18 am
announced a joint partnership with two of its affiliated companies to create a global air traffic control system for drones and electric vertical takeoff and landing, or eVTOL aircraft. Such a system ...
The Latest Google Headlines on:
Electric UAV
[google_news title=”” keyword=”Electric UAV” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
The Latest Bing News on:
Small unmanned systems
- Teledyne FLIR Defense Unveils Rogue 1 Loitering Munition System at SOF Weekon May 7, 2024 at 7:00 am
Teledyne FLIR Defense, part of Teledyne Technologies Incorporated (NYSE:TDY), is introducing its new Rogue 1™ loitering munition system at this week’s Special Operations Forces (SOF) Week ...
- This video flies through the Army’s first small drone obstacle courseon May 6, 2024 at 3:50 pm
Soldiers are competing in the Army’s first small drone competition with obstacles modeled off the Ukraine war and threats in the Middle East.
- U.S. Navy Christens Newest Unmanned Surface Vessel, Vanguardon May 6, 2024 at 12:30 pm
Public Affairs, May 6, 2024 WASHINGTON – The U.S. Navy christened Vanguard, the newest Unmanned Surface Vessel (USV) during a recent ceremony in Mobile, Alabama. Vanguard is the Navy’s ...
- Royal Navy Enhances Underwater Capabilities with Acquisition of Additional HII Advanced Unmanned Vehicleson May 6, 2024 at 3:00 am
Duane Fotheringham, president of Mission Technologies’ Unmanned Systems business group ... October 2023: HII announced the award of a contract to build nine small UUVs for the U.S. Navy’s Lionfish ...
- The US military's massive unmanned 'Manta Ray' submarine cleared its first sea teston May 3, 2024 at 8:49 am
The Manta Ray program looks to build a "new class of long-duration, long-range, payload-capable UUVs," according to DARPA.
- Army planning consolidation roadmap for loitering munitions and small droneson May 2, 2024 at 7:20 pm
Army acquisition head Doug Bush said he and Army Futures Command head Gen. James Rainey expect to have a plan rolled out sometime this summer.
- Japan hastens pursuit of unmanned ground vehicles for its militaryon May 2, 2024 at 3:12 am
Japan's recent contracts for unmanned ground vehicles awarded to international vendors are a sign of how the government plans to invest more heavily in robots to support its ground troops. Japan is ...
- Marine scouts check out small boats from Down Underon May 1, 2024 at 11:45 am
The 1st Light Armored Reconnaissance Company, which normally rides 6-wheeled LAVs, will work with the Marine Corps Warfighting Lab to test an Australian boat designed for high-speed, high-tech ...
- Mission Systems Integration Specialist D&J Aviation Joins SmartSky® Installation Networkon April 30, 2024 at 7:39 am
SmartSky, provider of the most advanced inflight air-to-ground (ATG) connectivity for business aviation, today announced D&J Aviation as a new sales and installation partner. D&J recently completed a ...
- Here are 4 ways to defend against unmanned ground vehicleson April 25, 2024 at 12:49 pm
— Unmanned Aerial Vehicle Strikes: Defenders could use bomb-dropping or kamikaze UAVs to destroy UGVs, as Ukraine has done on occasion. UAVs offer the advantage of being relatively cheap and could be ...
The Latest Google Headlines on:
Small unmanned systems
[google_news title=”” keyword=”small unmanned systems” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
