I’ve got FlashGet installed for now but actually I don’t even bother to use it for files less than 100 MB. Also, download managers/accelerators were more common earlier (for example GetRight) when Windows wouldn’t support resuming properly (or not at all) and were rarely used for speeding up downloads. I get 6600 KB downstream, so single servers that max out my line are rather rare by connecting to multiple serrves I often get my speed maximised. The benefit of download programs lies in finding mirrors and downloading from more than one source and thus maxing out the line’s speed. I have 8 MB cable and with Free Download Manager I can add multiple sources and download concurrently from many sites, thus increasing my available incomming bandwidth quite a bit. The test was flawed and didn’t take the biggest advantage of Download Accellerator (or others, like Free Download Manager) into account that feature is multi-source downloading. There is a wealth of free software which can markedly improve your download times – take the time to read selected reader’s comments and give some of this software a try. Hydrogen and air proved to be a viable high-sound-speed BTRA propellant with operable equivalence ratios ranging from one to three.Many thanks to all who responded, pointing out that download accelerators shine when multiple paths are available. Methane and nitrous oxide propellant was able to double the non-dimensional thrust of the best performing methane and enriched-air propellant in the BTRA. A short section of BTRA 100 baffles placed at the entrance of a BTRA 500 baffle stage filled with a single propellant expanded the operable Mach number range of the stage. The BTRA 500 baffles were shown to be operable with a methane and enriched-air propellant (1CH4 + 2O2 + 4.67N2) from Mach 2.2 up to at least Mach 3.8. Experiments explored the Mach number limits of the BTRA 500 baffles and utilized methane and enriched-air, methane and nitrous oxide, and hydrogen and air propellants. Experiments were conducted with the BTRA 500 baffles, which feature normal baffles and a smaller chamber size than the earlier developed BTRA 100 baffles.
While originally designed with finned-projectiles in smooth bored tubes, recent research has focused on the use of axisymmetric projectiles in a baffled tube ram accelerator (BTRA). View Video Presentation: The ram accelerator is a hypervelocity mass driver system that is capable of launching projectiles at orbital velocities.
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