Airter One 
A small hand operated compressed air injection lance. It is manufactured by Novokraft AG.
Airter Trike 8140
A pedestrian operated aerator which injects compressed air into the soil profile via injection lances.
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Auto Turfman
A make of pedestrian (engine powered) aerator, with interchangeable tines (solid, hollow, slit / chisel), with a working width of 410mm and a working depth of up to 100mm; typically taking about 1-hour to cover 1,000m2. It was manufactured by SISIS.
Auto-Outfield Spiker
A make of pedestrian self-propelled aerator, having 6 plates, each of which had 4 tines evenly attached. It was manufactured by SISIS.
Autocrat
A make of pedestrian punch action aerator, originally manufactured in 1971 by SISIS., weighing 293kg. It had a width of 1m, with 8 tines penetrating up to 100mm. The operating speed was 1.2 km/hr, allowing a bowling green to be aerated in about 1.5 hours.
Autoslit
A make of pedestrian (engine powered) slit-tine aerator, with a working width of 900mm and a working depth of up to 150mm; It is manufactured by SISIS.
Core Collector
A make of pedestrian operated collector of hollow tine cores and surface debris. It has a working width of 1.2m and a maximum hopper capacity of 0.3 cubic metres; it is manufactured by Redexim-Charterhouse.
DAM
A deep mounted aerator attachment for the D System Mounted Carrying Frame, which is manufactured by SCH Supplies. It has a working width of 1.5m, 9 heavy duty discs each with 8 narrow tines, which can penetrate to a maximum depth of 180mm.
Decompaction
The process of making a soil less compact and reducing the soil Bulk Density. The action of decompaction creates fissures, slits or holes within a soil so as to increase the overall soil volume. The loosening of the soil itself through cultivation techniques such as rotavating or power-harrowing , as well as deep spiking with soil heave, deep linear aeration with soil shattering, and hollow-tining also lead to decompaction.
Deep Aeration