subsonic performance
519x39mm — The 9x39mm cartridge is a subsonic rifle round used in Russian firearms. It was based on the 7.62x39mm M43 cartridge, but with the neck opened up to accommodate a 9 mm bullet. The intent was to create a subsonic cartridge for suppressed firearms… …
52AMP Technical Services DSR-1 — Infobox Weapon name=DSR 1 caption=DSR 1 sniper rifle origin=flagcountry|Germany type=Bolt action rifle is ranged=yes is bladed= is explosive= is artillery= is vehicle= is UK= service= used by=See Users wars= designer=Ingolf Reuter design date=… …
53Space Shuttle — STS redirects here. For other uses, see STS (disambiguation). This article is about the NASA Space Transportation System vehicle. For the associated NASA STS program, see Space Shuttle program. For other shuttles and aerospace vehicles, see… …
54Supercruise — A supercruising aircraft is able to maintain supersonic speeds in level flight without the use of afterburners and with a cargo/weapons load.AdvantagesAfterburners, which most military aircraft use to travel at supersonic speeds, are very… …
55Non-rocket spacelaunch — Non rocket space launch (NRS) is a launch into space where some or all needed speed and altitude is provided by non rocket means, rather than simply using conventional chemical rockets from the ground. A number of alternatives to rockets have… …
56Boeing 747 — British Airways Bo …
57Convair F-102 Delta Dagger — F 102 Delta Dagger F 102 from the 125th Fighter Interceptor Group, Florida Air National Guard, deploys braking parachute Role …
58Scaled Composites Tier One — Tier One redirects here. For other uses, see Tier 1 (disambiguation). Tier One is Scaled Composites program of suborbital human spaceflight using the reusable spacecraft SpaceShipOne and its launcher White Knight. The craft was designed by Burt …
59Mikoyan-Gurevich MiG-21 — MiG 21 Romanian MiG 21UM Lancer B Role Fighter Manufacturer …
60Langley Research Center — NASA Langley Research Center Aerial view of Langley Research Center …
