A tank assembly for a helicopter is provided. The tank assembly comprises a retractable tank for storing liquid or other substances. The retractable tank comprises an upper frame structure. The tank assembly further comprises an attachment mechanism attached to the upper frame structure and configured to engage a main rotor transmission of the helicopter to suspend therefrom. A helicopter comprising a fuselage, a main rotor transmission, and a tank assembly is also provided.

A tank assembly for a helicopter is provided. The tank assembly comprises a retractable tank for storing liquid or other substances. The retractable tank comprises an upper frame structure. The tank assembly further comprises an attachment mechanism attached to the upper frame structure and configured to engage a main rotor transmission of the helicopter to suspend therefrom. A helicopter comprising a fuselage, a main rotor transmission, and a tank assembly is also provided.

A tank assembly for a helicopter is provided. The tank assembly comprises a retractable tank for storing liquid or other substances, an attachment mechanism, and first and second struts. The retractable tank comprises an upper frame structure. The attachment mechanism is attached to the upper frame structure and is configured to engage a cargo hook mount on the underside of the fuselage of the helicopter. The first and second struts extend from respective opposing sides of the upper frame structure. Each of the first and second struts is configured to engage a respective side mount on the fuselage of the helicopter.

A tank assembly for a helicopter is provided. The tank assembly comprises a retractable tank for storing liquid or other substances, an attachment mechanism, and first and second struts. The retractable tank comprises an upper frame structure. The attachment mechanism is attached to the upper frame structure and is configured to engage a cargo hook mount on the underside of the fuselage of the helicopter. The first and second struts extend from respective opposing sides of the upper frame structure. Each of the first and second struts is configured to engage a respective side mount on the fuselage of the helicopter.

A self-funneling flexible container may be used with a storage and transportation system to provide an efficient, effective and cost-efficient transfer of material to, from or about a site, for example, a hydrocarbon exploration, recovery, production or operation site. The self-funneling flexible container may comprise one or more bands about the bottom or the bottom and one or more sides of the self-funneling flexible container. The bands have an elasticity such that the weight of material disposed in the self-funneling flexible container transitions the bands to an expanded position. When the material is discharged, the bands transition to a contracted position to form a funnel or chute so that all material may be efficiently discharged. As the funnel or chute is only formed at discharge, the self-funneling flexible container may store more material than traditional rigid containers.

A self-funneling flexible container may be used with a storage and transportation system to provide an efficient, effective and cost-efficient transfer of material to, from or about a site, for example, a hydrocarbon exploration, recovery, production or operation site. The self-funneling flexible container may comprise one or more bands about the bottom or the bottom and one or more sides of the self-funneling flexible container. The bands have an elasticity such that the weight of material disposed in the self-funneling flexible container transitions the bands to an expanded position. When the material is discharged, the bands transition to a contracted position to form a funnel or chute so that all material may be efficiently discharged. As the funnel or chute is only formed at discharge, the self-funneling flexible container may store more material than traditional rigid containers.

A self-funneling flexible container may be used with a storage and transportation system to provide an efficient, effective and cost-efficient transfer of material to, from or about a site, for example, a hydrocarbon exploration, recovery, production or operation site. The self-funneling flexible container may comprise one or more bands about the bottom or the bottom and one or more sides of the self-funneling flexible container. The bands have an elasticity such that the weight of material disposed in the self-funneling flexible container transitions the bands to an expanded position. When the material is discharged, the bands transition to a contracted position to form a funnel or chute so that all material may be efficiently discharged. As the funnel or chute is only formed at discharge, the self-funneling flexible container may store more material than traditional rigid containers.

A self-funneling flexible container may be used with a storage and transportation system to provide an efficient, effective and cost-efficient transfer of material to, from or about a site, for example, a hydrocarbon exploration, recovery, production or operation site. The self-funneling flexible container may comprise one or more bands about the bottom or the bottom and one or more sides of the self-funneling flexible container. The bands have an elasticity such that the weight of material disposed in the self-funneling flexible container transitions the bands to an expanded position. When the material is discharged, the bands transition to a contracted position to form a funnel or chute so that all material may be efficiently discharged. As the funnel or chute is only formed at discharge, the self-funneling flexible container may store more material than traditional rigid containers.

An air cargo container has a tubular head rail extending across the front opening of the container. Sliders are provided in or on the head rail. A curtain door has sheet of flexible material and flexible straps attached to the sheet. The straps are attached to the sliders. The curtain door may be opened and closed via the sliders sliding along the head rail.

An air cargo container has a tubular head rail extending across the front opening of the container. Sliders are provided in or on the head rail. A curtain door has sheet of flexible material and flexible straps attached to the sheet. The straps are attached to the sliders. The curtain door may be opened and closed via the sliders sliding along the head rail.