Shawarma ( Arabic : شاورما ) also spelled shawurma or shawerma , is a Levantine meat preparation, where lamb , chicken , turkey , beef , veal , or mixed meats are placed on a spit (commonly a vertical spit in restaurants ), and may be grilled for as long as a day.   Shavings are cut off the block of meat for serving, and the remainder of the block of meat is kept heated on the rotating spit. Shawarma can be served on a plate (generally with accompaniments), or as a sandwich or wrap . Shawarma is usually eaten with tabbouleh , fattoush , taboon bread , tomato , and cucumber . Toppings include tahini , hummus , pickled turnips , and amba .
The Olympus entered service as a peak demand industrial power generator in 1962 when the Central Electricity Generating Board (CEGB) commissioned a single prototype installation at its Hams Hall power station . Power was provided by an Olympus 201 exhausting through a two-stage turbine powering a Brush synchronous alternator providing 20 MW at 3000 rpm. By 1972, the CEGB had installed 42 Olympus generating sets.  Olympus engines are also used to provide backup power in case of a loss of grid electrical power at some of Britain's nuclear power stations.