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Cutaway model of 15x115 BRG-15 and four 15,5x106 BRG-15 cartridges. These cartridges were meant for the BRG-15 machine gun that was meant to replace the .50 (12,7x99) weapon and cartridge.
In the seventies of the last century it was felt that there was a great gap between the 12,7x99 and the 20x139mm weapons and cartridge. It also became clear that the existing .50 ammunition was ineffective against even lightly armoured Russian vehicles (10mm @30 degr) at distances over 300 mtrs. FN engineers started to design a weapon, not much heavier than the .50, however much more effective, although much cheaper than the 20x139 weapons and cartridges. The required effective range was 1000 mtrs. Computer calculations and simulations pointed out that 15,5 mm (.60) was a suitable calibre.
The BRG-15 machine gun was taken in use in 1981 and had as a special feature the dual feed, allowing the gunner to fast switch between two types of ammunition. The spent cases were ejected from the underside of the weapon.
Cartridge 01:
12,7x99 (.50) APIT catridge for size comparison
Cartridge 02:
The original design 15x115 (APHC) cartridge for the BRG-15 machine gun. The project was stopped after extensive testing. This, due to the fact that jacketed bullets did not function well at 1050 mtrs/sec, resulting in excessive barrel wear and loss of accuracy.
In June 1987 it was descided to redesign the 15 mm projectile and cartridge for the BRG-15. replacing it with the new designed 15x106 cartridge, which had a projectile with a driving band.
Cartridge 03/04/05/06/07
Because it was found out that jacketed projectiles do not function propperly above 1000 mtrs/sec. a projectile with a plastic driving band was designed.
A intermediate design (not in the picture) was the projectile shape as shown in cartridges 03 to 07 with the 115 mm long shellcase as shown with cartridge 02. The 115 mm long shellcase however had too little inner space to take the required amount of powder, so a new shellcase 15x106mm was designed (wider inside).
Cartridge 03: 15,5x106 T.P. (Target Practice), soft steel projectile with a plastic drivingband. The projectile colour is blue.
Cartridge 04: 15,5x106 T.P.T. (Target Practice Tracer), soft steel projectile with a tracer and a plastic drivingband. The projectile colour is blue with a red nosetip.
Cartridge 05: 15,5x106 APHC (Armour Piercing Hard Core). The projectile exists of a black aluminium body, housing the drivingband and the tungsten penetrator. A white plastic ballistic nose cap is crimped on top of the body.
Cartridge 06: 15,5x106 APDS (Armour Piercing Discarding Sabot). The projectile exists of a black aluminium driving sabot, housing the drivingband and the tungsten penetrator. A black plastic sabot, existing of four joined sabots is screwed on top of the body. Upon firing the sabots brake away, allowing the driving sabot to be blown away by the airstream. Only the tungsten penetrator will travel to the target with high speed.
Live fire tests started in 1988 and were a succes for weapon and ammunition. However , the changing relation between East and West, followed by large financial cuts in military spending had a negative effect on the project that was finally terminated in 1992. FN switchd to the design and production of small arms like the highly succesfull P90 PDW.
It is claimed that the 15x106 BRG-15 cartridge is even more powerfull than the Russian14,5 x 114 cartridge.
The armour penetration of the 15,5x106 (HVAP) cartridge is 10 mm @ 30 degr. at 1350 mtrs, exeeding the 100 mtrs requirement. Rate of fire of the BRG-15 was 220 rpm.
Curitiba Master Hall - Curitiba/Pr - O4.O7.2O1O
créditos: Foto por Franciele Rodrigues - www.flickr.com/francielerodrigues
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Built in 1926-1928, this Art Deco-style building was designed by Douglas Ellington to serve as the City Hall for Asheville, North Carolina, replacing a previous city hall, which stood from 1892 until 1928 where Reuter Terrace of Pack Square Park is located today. City Hall stands alongside the Classical Revival-style Buncombe County Courthouse, which was built at the same time, and was originally proposed by Ellington to be a similar structure to City Hall, but the proposal was rejected by the relatively more conservative Buncombe County Commissioners, whom saw the proposed design as garish and too radical for the county. A bus station, which was to be located in a wing connecting the two buildings, was also never built. The building features an orange brick exterior, a marble-clad base, marble trim, metal frame windows, an arcade at the entrance with arched openings and a vaulted tile ceiling, Art Deco-style copper lanterns flanking the entrance, decorative trim surrounds at the windows at the central bays of the second floor of the front facade with pediments, engaged columns, and decorative sculptural reliefs, brick pilasters flanking the windows at the central bays of the building’s facades, windows in pentagon-shaped bays with pointed tops flanking decorative stone fins and pinnacles at the central bays of the sixth floor, setbacks at the corners of the sixth floor, an octagonal seventh floor, an octagonal polychromatic terra cotta roof above the seventh floor, with floral motifs and ribs, and an octagonal lantern at the top of the building’s roof. Inside, the building features a lobby with Art Deco-style pendants, decorative Art Deco-style trim, entrance doors with arched transoms, elevators with bronze doors, original operator levers, a stone trim surround, and bronze dial-style position indicators, a marble floor, a bronze letterbox, and marble wainscoting. The other areas of the building, besides the elevator lobbies and main lobby, have been modernized and updated to accommodate modern office needs. The building was listed on the National Register of Historic Places in 1976, and remains in use as Asheville City Hall, with the building’s most recent change being the elimination of the staff positions of manual elevator operators in 2020 in response to the COVID-19 Pandemic, with the elevators being shifted to automatic operation.
Jeep has been acting out lately. New PS gearbox, loose tierod end,
last weeks shifter fiasco, and now the wiper motor died. Jeeps 13
years old with 110,000 miles.. Lucky number 13!
The rear brakes were significantly worn and were completely dry (no traces of any lubricant). On one side, the caliper pin boots were torn open and the pins were very rusty. I replaced the rotors, pads, wheel bearings, and the torn boots.
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I went to use the zip on my wallet when the little handle part snapped off, which was pretty annoying. Perhaps it wasn't strong enough to be pulled around by my fish pendant thing which I have always had in my previous wallet for years.
Anyway, my replacement solution doesn't look too bad