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Vacuum crossbow
Price:
1785 eur
Proprietary name is “Spring Vacuum -
the block throwing weapon”Patent
RU ¹ 2329452. patent application in Canada Application ¹ : 2,
640, 377
The weapon for throwing arrows uses the energy of atmosphere
pressure. The bow-string of the vacuum crossbow does not have
lateral displacement.
The vacuum
resilient element does not have a fatigue. The coefficient of
the accumulated energy of the vacuum resilient element is
1. The
weapon is safe at the break of bow-string. Installation of bowstring lubrication and replacement of sealing
can be carried out in the field. Vacuum crossbow may be used in
the temperature range of -40 to +70 degrees Celsius. The weapon
is safe at the break of bow-string. When emergency situation, to
defuse arms (lift force on the bowstring tension), it is enough
to unscrew the helix in the cork of the vacuum chamber. The
highest efficiency the weapon provides in arrows weight 55 gramm.
With these arrows the crossbow can lead
aiming fire at the distance of 50 meters. The
vacuum crossbow in
tension
62 kg sends the arrows by mass 30 grams at the distance
of 330 meters, and the the arrows by mass 52 grams - at the
distance of 280 meters. At the distance of 50 meters with
special arrows by mass 55 grams punch steel sheet in 2 millimetres thick. Structural elements of the weapon are made of
high quality modern materials: barrel, arms, barrel lock, handle
are made of aluminum alloy. The cork, plunger and rollers are
made of polyamide 6. The butt is made of composite plastic. The
bow-string is made of kevlar or dunem. The vacuum crossbow is
powder-painted and is resistant to mechanical impact and
ultraviolet radiation. The folding stock provides a comfortable
pulling of the bowstring. Weapon is well balanced. The lock of
the vacuum crossbow has an automatic safety device. A weapon has
compact immobile shoulders breadthways 40 sm., that enables safe
firing in a thick vegetation. The Vacuum crossbow’s construction
involves the installation of: optical; kolimator, laserand
mechanical sights.
Specifications:
initial speed
pressing force
42 kg (62)
Length
with support for the leg 104 sm
Width
40 sm
Working stroke of the bowstring 50 sm
Arrows
by mass not less than 30 grams
Mass
4.7 kg
Delivery system:
vacuum crossbow, dynamic lubrication
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