Abstract: In a general aspect, a device for attaching a towed device to an aircraft in flight can include an attachment cable secured to the towed device. The attachment cable can have one end forming a closed loop and including a loop head. The device can also include a first attachment element secured to the loop head of the attachment cable, The first attachment element can include first electrical connectors. The device can further include a towing cable attached to the aircraft and a second attachment element attached to one end of the towing cable. The second attachment element can be configured to cooperate mechanically and electrically with the first attachment element. The second attachment element can include second electrical connectors configured to cooperate with the first electrical connectors. The device can still further include fasteners or guides configured to hold the loop head of the attachment cable off the ground.

Abstract: In a general aspect, an airborne geophysical prospection device can include a support structure having a surface area of several hundred square meters and an electromagnetic antenna disposed on the support structure. The electromagnetic antenna can have a surface area of several hundred square meters. The electromagnetic antenna can include one or more loops disposed on the support structure. The support structure can be configured to be towed behind an aircraft with a towing cable. The support structure can be supple, deployable under traction and substantially planar after deployment.

Abstract: In a general aspect, a towed device for an aircraft can include a support structure carrying measurement means, the support structure being supple and substantially flat when deployed, a traction pole, means for fastening the support structure to the traction pole, an attachment element for attaching the towed device to a towing cable, and an attitude-correcting structure arranged between the attachment element and the traction pole. The attitude-correcting structure can include an attitude-correcting pole configured to be towed by the aircraft in a vertical position, by means of the attachment element, and traction stays. The traction stays can respectively connect a first end of the attitude-correcting pole to two opposite ends of the traction pole, and a second end of the attitude-correcting pole to the two opposite ends of the traction pole, giving the traction pole a horizontal attitude when the attitude-correcting pole is in the vertical position.