An aircraft, comprising: a body; a wing coupled to the body and comprising a leading edge; a system for dissipating heat, the system comprising: a heat source; a bladder configured at the leading edge of the wing, the bladder comprising opposing thin-walled sheets and a fluid flow conduit defined between the opposing thin-walled sheets, wherein the fluid flow conduit comprises an inlet and an outlet; a first fluid line coupled to the heat source and the inlet of the bladder; a second fluid line coupled to the heat source and the outlet of the bladder; and fluid flowable through the first fluid line from the heat source to the inlet, from the inlet through the fluid flow conduit to the outlet, and through the second fluid line from the outlet to the heat source; wherein the wing extends from an inboard end to an outboard end; the first fluid line comprises an inner tube comprising an inlet channel and extending through the fluid flow conduit of the bladder in a direction from the inboard end to the outboard end of the wing; and the fluid is transferred from the heat source to the fluid flow conduit of the bladder through the inlet channel of the inner tube. a body; a wing coupled to the body and comprising a leading edge; a system for dissipating heat, the system comprising: a heat source; a bladder configured at the leading edge of the wing, the bladder comprising opposing thin-walled sheets and a fluid flow conduit defined between the opposing thin-walled sheets, wherein the fluid flow conduit comprises an inlet and an outlet; a first fluid line coupled to the heat source and the inlet of the bladder; a second fluid line coupled to the heat source and the outlet of the bladder; and fluid flowable through the first fluid line from the heat source to the inlet, from the inlet through the fluid flow conduit to the outlet, and through the second fluid line from the outlet to the heat source; wherein the wing extends from an inboard end to an outboard end; the first fluid line comprises an inner tube comprising an inlet channel and extending through the fluid flow conduit of the bladder in a direction from the inboard end to the outboard end of the wing; and the fluid is transferred from the heat source to the fluid flow conduit of the bladder through the inlet channel of the inner tube. a heat source; a bladder configured at the leading edge of the wing, the bladder comprising opposing thin-walled sheets and a fluid flow conduit defined between the opposing thin-walled sheets, wherein the fluid flow conduit comprises an inlet and an outlet; a first fluid line coupled to the heat source and the inlet of the bladder; a second fluid line coupled to the heat source and the outlet of the bladder; and fluid flowable through the first fluid line from the heat source to the inlet, from the inlet through the fluid flow conduit to the outlet, and through the second fluid line from the outlet to the heat source; wherein the wing extends from an inboard end to an outboard end; the first fluid line comprises an inner tube comprising an inlet channel and extending through the fluid flow conduit of the bladder in a direction from the inboard end to the outboard end of the wing; and the fluid is transferred from the heat source to the fluid flow conduit of the bladder through the inlet channel of the inner tube.