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Royal Navy To Get First Large Autonomous Submarine
The Royal Navy has awarded a contract to build what may be the world’s largest underwater drone, and it will have the capacity to be armed.www.forbes.com
The Royal Navy have awarded a contract for what may be the world’s largest underwater drones. Armed submarine drones are just around the corner and the U.K.’s Royal Navy does not intend to be left behind. The ‘Manta’ XLUUV (extra-large uncrewed underwater vehicle) will be 100 ft long and have the capacity to be armed. This means that Britain is joining the U.S. in leading world development of full-sized underwater combat drones.
Jos olisin SAAB, lopettaisin A26 höpötyksen ja keskittyisin tekemään maailman parhaan XLUUV:n joka soveltuisi Itämeren(kin) olosuhteisiin ja myisin näitä mm. Suomelle. On sulaa hulluutta kehitellä uutta miehitettyä suklaria pikkuiselle Itämerelle, mutta mikäs siinä kun veronmaksaja maksaa.
Pidän paljon todennäköisempänä ja halvempana skenaariona sitä, että todellisen tarpeen ilmaantuessa pyrimme hankkimaan Saksan U212-luokan neljä ensimmäistä venettä, rakentamaan niille tarvittavan infran ja modaamaan veneet kuin hankkimalla miehittämättömiä veneitä vastaavalla suorituskyvyllä.
Nyt menee ihan mahdottomaksi höpinät. Vaikka esim. Jussi Niinistöä kovetti ajatus niin eihän nyt kokonaan uuteen aselajiin ole euroja. Miehittämätön menee nykyisen laajennuksena, eikä siinäkään tarvitse Orcan kaltaisia ihan heti havitella.
A group of Chinese researchers has developed a compact, sabre-like antenna for unmanned aerial vehicles (UAVs) that can switch between two radiation patterns for better communication coverage. They describe their work in a study published 26 February in IEEE Transactions on Antennas and Propagation.
For UAVs cruising at high speeds, it’s desirable to have small, aerodynamic antennas that limit drag but can still yield sufficient bandwidth and coverage. Zhijun Zhang, a researcher at Tsinghua University, notes that sabre-shaped antennas are beneficial in the sense that they are very aerodynamic—but there is a major limitation that comes with this design.
“Conventional sabre-like antennas generate a donut-shape radiation pattern, which provides an omnidirectional coverage and is ideal for air-to-ground communication. However, a donut-shape pattern has a null at its zenith,” Zhang explains.
Jumalauta, hattu päästä. (yksittäinen kommentti videon alta)During 11 years of service, drones had flown 3,435 sorties over China and North Vietnam. Of the 544 Lightning Bugs lost, mechanical failures brought down about one-third, while antiaircraft artillery, SAMs and MiGs claimed the rest. Interestingly, the North Vietnamese lost seven fighters to Lightning Bugs: one fighter ran out of fuel while in pursuit over the sea, but the other MiGs were hit with friendly fire when they chased the drone into antiaircraft or another fighter’s fire. One drone even achieved “ace” status by being involved in the crashes of five MiGs.
Suomeksi se on virolainen.Eestiläinen
Named after an old-English word for a type of dragon, the Rhaegal-A won’t be making its mark by burninating the countryside. Instead the electric cargo drone capable of taking off and landing like a helicopter is in the spotlight today during a U.S. Air Force conference about “flying car” technologies.
The drone’s planned Friday roll-out, which will not include any flights, marks a new step for Sabrewing, a startup based in Camarillo, Calif., after it became the first recipient of a contract awarded through the Air Force’s Agility Prime program. Once conditions allow for its first flight tests at Edwards Air Force Base, the Rhaegal-A drone could undergo Agility Prime demonstrations to test capabilities such as detecting and avoiding potential collisions, operating without GPS signals, and performing medical evacuations of simulated battlefield casualties.