Search results
Results From The WOW.Com Content Network
Ncube-2, a Norwegian CubeSat (10 cm (3.9 in) cube). A CubeSat is a class of small satellite with a form factor of 10 cm (3.9 in) cubes. [1] CubeSats have a mass of no more than 2 kg (4.4 lb) per unit, [2] and often use commercial off-the-shelf (COTS) components for their electronics and structure.
AeroCube-3 is a single-unit CubeSat which was built and is being operated by The Aerospace Corporation, at El Segundo, California.It is the third AeroCube picosatellite, following on from AeroCube-1, which was lost in a launch failure in 2006, and AeroCube-2 which was successfully launched in 2007 but failed immediately after launch. [3]
The rifles use stocks and extraordinarily thick Krieger barrels bearing an 18 lb (8.2 kg) muzzle brake. [1] Overall, depending on options, the rifles weigh from 85 to 120 pounds (39 to 54 kg) and are therefore only useful for shooting from a bench rest or heavy bipod. [ 2 ]
Size: 10 cm x 10 cm x 10 cm (1U CubeSat) Mass: 1 kg; Communication: 2 independent radios using amateur radio Very high frequency (VHF) and Ultra high frequency (UHF) bands, transmission speed 1200 bit/s; AFSK and PWM Morse code modulation, KISS protocol; Payload: low resolution C328 camera (640 × 480 maximum resolution, 8 bit color)
A Leupold telescopic sight mounted on a dovetailed rifle receiver via two scope rings From left: A sketch of a cross section on a Zeiss rail and ring mount, both with a Picatinny rail interface. Scope mounts are rigid implements used to attach (typically) a telescopic sight or other types of optical sights onto a firearm.
The scope base is the attachment interface on the rifle's receiver, onto which the scope rings or scope mount are fixed. Early telescopic sights almost all have the rings that are fastened directly into tapped screw holes on the receiver, hence having no additional scope base other than the receiver top itself.
The locking bar system allows for even stress to be distributed and prevent canting of the scope mount. Another form of scope canting is caused by the rings themselves. Many Weaver-type mounts, including many Picatinny-type scope rings and even the Redfield Type, have either two or four screws on top of the scope ring that hold the scope in place.
The mount is found on the left side of the rifle receiver, with machined cutouts for reduced weight and ease of installation; an example is the PSO-1 optical sight. Similar rails can also be found on rifles such as the Dragunov sniper rifle (SVD), the PSL rifle, the PKM as well as some AK series assault rifles from 1954 onwards. Since 1992 the ...