The present invention relates generally to the retrofitting of airborne objects and, more particularly, to embodiments of a multi-purpose mounting device suitable for securing one or more electrical devices to a laser guided bomb or other airborne munition.
As a result of extensive engineering efforts, the guidance capabilities of laser guided bombs and other airborne munitions have improved considerably in recent years. Advanced precision guidance munitions now employ multiple onboard guidance systems to increase accuracy, minimize collateral damage, and improve overall munition effectiveness. As one example, the Raytheon Company, currently headquartered in Waltham, Mass., has introduced the Enhanced Paveway™ family of precision guided bombs that incorporate dual mode global position system-enhanced inertial navigation guidance systems (GPS/INS) with laser-guidance packages. While the advantages of precision guided munitions over conventional non-guided or “dumb” munitions have been well demonstrated through field testing and in combat scenarios, it is cost prohibitive and generally impractical to replace the numerous non-guided munitions currently in existence with their precision guided counterparts. A demand has thus developed for a low cost and reliable manner in which to provide a pre-existing non-guided munition with precision guidance capabilities. To satisfy this demand, precision guidance kits (PGKs) have been developed that can be retrofitted to a non-guided munition and provide precision guidance, datalink, telemetry, and aircraft interface functionalities thereto.
In equipping a non-guided munition with a PGK, it is often desirable to mount one or more electrical devices on the munition. For example, it may be desirable to mount an antenna or transmitter to the exterior of an airborne munition, or a battery, processor, or the like to the interior of the airborne munition. It may also be desirable to mount various sensors (e.g., airspeed sensors, altitude sensors, g-force sensors, etc.) to either the exterior and/or the interior of the airborne munition. Conventional techniques for mounting electrical devices to airborne munitions have typically entailed substantial modifications to the munition. Holes are often drilled in the munition casing to enable the attachment of specialized hardware. Wires or cables utilized to interconnect electrical components are typically taped onto the munition skin or routed through specialized conduits. Such modifications are time consuming, costly, and may require technical inspection or weapon requalification to ensure the satisfaction of quality standards. Although adhesives have been suggested as a more straightforward and less costly means for mounting an antenna or other electrical device to an airborne munition, even the strongest adhesives are generally unable to withstand the significant loading forces, temperature variations, supersonic airflows, vibratory forces, and other harsh conditions experienced during flight of military aircraft.
There thus exists an ongoing need to provide embodiments of a removable mounting device for securely mounting one or more electrical components (e.g., an antenna, a sensor package, etc.) to the exterior and/or interior of an airborne munition or other airborne object. Ideally, such a mounting device would be field installable, all-weather capable, and relatively insensitive to temperature variation; would have a low profile to minimize drag when subjected to high velocity airflow; would be relatively lightweight; would be relatively rugged to withstand extreme loading conditions, high vibratory forces, bird strikes, and soldier handling; would be scalable to munitions of different sizes; would be generally incapable of disengaging from the airborne munition, after installation thereon, to prevent in-flight damage of the aircraft; and would enable the routing of wires, cables, or other electrical connectors between electrical components in a protected and low strain manner. At the same time, it is desirable for such a mounting device to be amenable to low cost manufacture. Other desirable features and characteristics of the present invention will become apparent from the subsequent Detailed Description and the appended Claims, taken in conjunction with the accompanying Drawings and this Background.
Embodiments of a multi-purpose mounting device are provided for mounting an electrical device to a structure coupled to an airborne object. In one embodiment, the multi-purpose mounting device includes an adapter member and a slide member coupled to the adapter member. The slide member is radially spaced apart from the adapter member to form an open slot, which is configured to receive a portion of the external structural therein to secure the multi-purpose mounting device to the airborne object. A first mounting surface is provided on one of the adapter member and the slide member and configured to support the electrical device.
Embodiments of a method are also provided for retrofitting an electrical device to an airborne object having a conical housing section. In one embodiment, the method includes the steps of disposing a generally cylindrical faring around the conical housing section to form an annular clearance between the conical housing section and the faring, securing a multi-purpose mounting device having a mounting surface within the annular clearance, and attaching the electrical device to the mounting surface.
At least one example of the present invention will hereinafter be described in conjunction with the following figures, wherein like numerals denote like elements, and:
The following Detailed Description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding Background or the following Detailed Description. The following Detailed Description describes an exemplary embodiment of a multi-purpose mounting device in the context of a particular type of airborne object, namely, a laser guided bomb. It is, however, emphasized that embodiments of the multi-purpose mounting device can be utilized in conjunction with a wide variety of airborne objects including, but not limited to, other types of airborne munition (e.g., missiles and unmanned air vehicles), airborne sub-munitions, modular components adapted to be mounted to airborne munitions (e.g., fuse kits), satellites, and certain aircraft. In further embodiments, the multi-purpose mounting device may also be deployed onboard other types of vehicles including, for example, land- and water-based robotic vehicles.
In the exemplary embodiment illustrated in
MMD 10 enables one more electrical devices to be mounted to airborne munition 12. In addition, MMD 10 enables a wire, cable, or other electrical connector to be routed through MMD 10 in a protected and low strain manner. Any electrical device having appropriate dimensions can be mounted to MMD 10 including, but not limited to, various types of sensors, sensor packages, wireless receivers, wireless transmitters (e.g., radio frequency tracking beacons), and antennas. In the exemplary embodiment illustrated in
In certain embodiments, antenna package 26 may be configured to communicate with a transmitter or receiver device located within the host aircraft's cockpit. In such a case, it may be desirable to position MMD 10 such that a direct line-of-sight is provided between antenna package 26 and the aircraft cockpit. MMD 10 enables such a direct line-of-sight to be achieved in two manners. First, by mounting MMD 10 to an external structure (i.e., faring 14) located on a forward section of airborne munition 12, MMD 10 and antenna package 26 are positioned forward of the aircraft wing (not shown). Second, prior to the tightening of a clamping member included within MMD 10 (described below), MMD 10 can slide within the annular clearance provided between fairing 14 and munition nose 18 (indicated in
MMD 10 can be produced as a single machined piece, which is fitted onto faring 14 prior to installation onboard airborne munition 12. Alternatively, MMD 10 can be produced as multiple pieces that are subsequently joined together to allow MMD 10 to be fitted onto faring 14 subsequent to installation onboard airborne munition 12. In exemplary embodiment illustrated in
Turning now to
With continued reference to
As stated above, MMD 10 is preferably equipped with one or more clamping members suitable for locking MMD 10 in a desired angular or clock position on faring 14 (
The foregoing has thus provided an exemplary embodiment of a multi-purpose mounting device suitable for securely mounting one or more electrical components (e.g., an antenna package, a sensor package, battery, processor, etc.) to the exterior and/or interior of an airborne munition or other airborne object. Advantageously, in the above-described exemplary embodiment, the mounting device is field installable, all-weather capable, and relatively insensitive to temperature variation; has a relatively low profile to minimize drag when subjected to high velocity airflow; is relatively lightweight; is relatively rugged to withstand extreme loading conditions, high vibratory forces, bird strikes, and soldier handling; is scalable to munitions of different sizes; is generally incapable of disengaging from an airborne munition and striking an aircraft after installation; and enables the routing of wires or other electrical connectors between electrical components in a protected and low strain manner. In addition, the above-described exemplary multi-purpose mounting device is relatively inexpensive and straightforward to manufacture.
In the above-described exemplary embodiment, a first electronic device (i.e., antenna package 26 shown in
Although described above in conjunction with a particular type of airborne object, (i.e., a laser guided bomb), it is emphasized that embodiments of the multi-purpose mounting device can be utilized in conjunction with a wide variety of airborne objects, including other types of airborne munition (e.g., missiles and unmanned air vehicles), airborne sub-munitions, modular components adapted to be mounted to airborne munitions (e.g., fuse kits), satellites, land or water based robotic vehicles, and certain aircraft. In further embodiments, the multi-purpose mounting device may also be deployed onboard other types of vehicles including, for example, land- and water-based robotic vehicles. Furthermore, the structural components of the multi-purpose mounting device can vary in disposition, arrangement, dimensions, and shape in alternative embodiments without departing from the scope and spirit of the invention as set-forth in the appended Claims.
The foregoing has also provided an exemplary method for retrofitting an electrical device to an airborne munition or other airborne object having a conical housing section. In one embodiment, the method includes the steps of: (i) disposing a generally cylindrical faring around the conical housing section to form an annular clearance between the conical housing section and the faring, (ii) securing a multi-purpose mounting device having a mounting surface within the annular clearance, and (iii) attaching the electrical device to the mounting surface. The steps can be performed in any desired order. In a further embodiment wherein the multi-purpose mounting device is comprised of an adapter portion, a transverse portion fixedly coupled to the adapter portion, and a slide portion attachable to the transverse portion, the step of securing includes the sub-steps of inserting the adapter portion into the annular clearance such that transverse portion resides adjacent an edge of the faring and attaching the slide portion to the transverse portion utilizing at least one fastener. The angular or clock position of the multi-purpose mounting device may also be adjusted by sliding the device within the annular clearance to a desired clock position on the faring; and, in embodiments wherein the multi-purpose mounting device further includes a clamping member, the multi-purpose mounting may be secured within the desired clock position by tightening the clamping member against the faring.
While at least one exemplary embodiment has been presented in the foregoing Detailed Description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing Detailed Description will provide those skilled in the art with a convenient road map for implementing an exemplary embodiment of the invention. It being understood that various changes may be made in the function and arrangement of elements described in an exemplary embodiment without departing from the scope of the invention as set-forth in the appended Claims.
This application claims priority to U.S. Provisional Application Ser. No. 61/142,549, filed Jan. 5, 2009, the entire contents of which are hereby incorporated by reference.
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