510901 Macs USA Lightweight Aircraft Pack-Black With Anchors Our Mac's Aircraft Pack comes complete with three 9-foot ratchet straps rated at 1250Kg Minimum Breaking Strength (MBS)—more than enough strength for most lightweight aircraft (Recommended working load is 1/3 MBS). The S-Hook with keeper on each of the tie downs are encased in a full coat of thick, ruggedized vinyl. Protective soft loop- use the included soft loop extension when no tie-down point is available at the tail of the plane. Run the loop around a structural component and secure it to the strap anchoring the rear of the aircraft. The protective cordura sleeve prevents wear to the strap. Each kit contains: 3 x 2.74M (9Ft) x 25mm (1") ratchet straps with S hooks and keepers each end 3 x Strap wraps to contain each ratchet strap when packaged 1 x 600mm soft loop extension for use at the tail of the plane 1 Macs duffle bag Weight is 2.3Kg Aluminium anchors: When your travels take you off-runway, the optional aluminum earth anchors with cable tie-offs are an excellent choice to tie down your airplane. These 450mm (18") cast aluminum anchors feature a 25mm hex-head that can be driven into the ground with either an impact driver or a T-handle socket. These anchors are suitable for a variety of soil types from silty gravel to hardpan asphalt; see list below for load capacity per anchor based on the soil type with anchor fully embedded: Hardpan Asphalt 1130Kg Sandy Gravel, very dense sand 770Kg Silty/Clay sand, silty gravel 270Kg Loose/med dense sands, loose sands, firm clay 150Kg Loose/fine un-compacted sand 90Kg The optional aluminum earth anchors weigh in at 0.65Kg each and the cable tie-off adds another 0.13Kg for for a total of just under 1Kg per anchor point. When added all together, this complete pack is just under 5.5Kg , making it an excellent lightweight option for securing your aircraft. NB: The image shows this pack with blue webbing, this listing is for black webbing.