to prevent dust and water from entering the internal motor each gun 60 is powered by air compressor 40 which is secured to the top of center frame support 20 c as seen in fig5 air compressor 40 is preferably comprised of a 2 u00bd gallon steel tank with various air valves the tank is pressurized by a compressor motor which is powered by a power take off 45 from the tractor or other towing vehicle device 10 preferably includes a female power take off fitting for connection to a male power take off at the rear of the towing vehicle air compressor hoses 41 extend from air compressor 40 and lead to guns 60 air compressor 40 has a preferred operating pressure of between about 75 and 115 psi such pressure is sufficient to force staples or stakes 61 through blanket 90 and into the ground before use the air compressor is turned on and each pneumatic gun 60 is calibrated for a predetermined tractor speed and the number of staples or stakes to be installed per yard cartridge 62 is connected to gun 60 to provide staples or stakes 61 for pinning blanket 90 to the ground for use with stakes each cartridge 62 holds approximately 170 stakes by firing a stake every 3 feet 170 stakes are used for 510 feet of erosion blanket.