Dispenser with a cover and a method for launching countermeasures
A dispenser for storing and launching countermeasures from an aircraft, comprising an elongate body provided with at least one launch opening adapted for storing the countermeasures in cartridges, where the dispenser comprises a pivot able cover arranged in the launch opening, where the cover, in a closed state, is adapted to close the launch opening such that the cartridges are covered. The cover is adapted to open when a force from a fired countermeasure is acting on a mounting plate. The advantage of the invention is that a cover covering the countermeasure scan be opened in a fully mechanical way, by the use of the reactional force of the countermeasure. This allows for a simple, reliable and cost-effective solution.
1. A dispenser ( 2 ) for storing and launching countermeasures ( 5 ), comprising an elongate body ( 8 ) provided with at least one launch opening ( 10 ) adapted for storing the countermeasures ( 5 ) in cartridges ( 12 ), wherein:
the dispenser comprises a plurality of cartridges ( 12 ) mounted to a base plate ( 18 ),
the dispenser is adapted to be mounted on an aircraft ( 1 ) with the longitudinal direction of the elongate body ( 8 ) essentially coinciding with the direction of motion of the aircraft ( 1 ),
the dispenser comprises a cover ( 15 ) arranged in the launch opening ( 10 ),
the cover ( 15 ) is pivotally suspended on a hinge ( 23 ),
a first section ( 16 ) of the cover ( 15 ) is arranged at a first side of the hinge ( 23 ), and that the base plate ( 18 ) comprises a mounting plate ( 19 ), a bottom plate ( 20 ) and a resilient means ( 21 ) arranged between the mounting plate ( 19 ) and the bottom plate ( 20 ), where
a mechanical connection ( 22 ) interconnects the mounting plate ( 19 ) with a second section ( 17 ) of the cover arranged at a second side of the hinge ( 23 ), and
the cover ( 15 ), in a closed state, is adapted to close the launch opening ( 10 ) such that the cartridges ( 12 ) are covered.
2. Dispenser according to claim 1 , wherein the cover ( 15 ), in an active state, is adapted to open the launch opening ( 10 ).
3. Dispenser according to claim 2 , wherein the cover ( 15 ) is adapted to open when a force from a launched countermeasure is acting on the mounting plate ( 19 ).
4. Dispenser according to claim 1 , wherein the cover ( 15 ) of the dispenser comprises a first cover ( 24 ) and a second cover ( 25 ).
5. Dispenser according to claim 1 , wherein the resilient means ( 21 ) comprises a coil spring.
6. Dispenser according to claim 5 , wherein the resilient means ( 21 ) further comprises a viscous damper.
7. Dispenser according to claim 1 , wherein the mechanical connection ( 22 ) is rigid.
8. Dispenser according to claim 1 , wherein the mechanical connection ( 22 ) is flexible and that the cover ( 15 ) is returned to the closed state by a separate spring.
9. Dispenser according to claim 1 , wherein the hinge ( 23 ) is arranged in parallel with the longitudinal direction of the elongate body ( 8 ).
10. Dispenser according to claim 1 , wherein the hinge ( 23 ) is arranged perpendicular to the longitudinal direction of the elongate body ( 8 ) and at the front of the launch opening ( 10 ).
11. Dispenser according to claim 1 , wherein the hinge ( 23 ) is arranged perpendicular to the longitudinal direction of the elongate body ( 8 ) and at the aft of the launch opening ( 10 ).
12. Dispenser according to claim 1 , wherein the dispenser is adapted to open the cover from a closed state when a countermeasure is being launched and to return the cover back to the closed state after the countermeasure has been launched.
13. A method for launching a countermeasure from a dispenser ( 2 ) mounted on an aircraft, wherein:
the countermeasure ( 5 ) is arranged in a cartridge ( 12 ), where the dispenser comprises a cover ( 15 ) arranged in a launch opening ( 10 ),
the cover ( 15 ) is pivotally suspended on a hinge ( 23 ),
a first section ( 16 ) of the cover ( 15 ) is arranged at a first side of the hinge ( 23 ),
a base plate ( 18 ) of the dispenser ( 2 ) comprises a mounting plate ( 19 ), a bottom plate ( 20 ) and a resilient means ( 21 ) arranged between the mounting plate ( 19 ) and the bottom plate ( 20 ),
a mechanical connection ( 22 ) interconnects the mounting plate ( 19 ) with a second section ( 17 ) of the cover ( 15 ) arranged at a second side of the hinge ( 23 ), and
the cover ( 15 ), in a closed state, is adapted to close the launch opening ( 10 ) such that the cartridges ( 12 ) are covered,
the method comprises the step of: opening the cover ( 15 ) by the reaction force from the countermeasure ( 5 ) when the countermeasure is launched, and
the reaction force compresses the resilient means ( 21 ) such that the mechanical connection ( 22 ) pulls the cover ( 15 ) to an open position.
14. A method according to claim 13 , characterized in that the method comprises the step of: closing the cover ( 15 ) when the countermeasure ( 5 ) has been launched, where the resilient means ( 21 ) expands such that the mechanical connection ( 22 ) pushes the cover ( 15 ) to a closed position.
15. An aircraft comprising at least one dispenser unit according to claim 1 .