Fire protection in group iv aircraft hangars. Medical and fire equipment.
Free Fire Battlegrounds
Hangar free fire. Group iii aircraft hangars may be either a row hangar with multiple units or an open bay hanger capable of housing multiple aircraft or a freestanding unit for a single aircraft. A single fire area of 40000 ft 2 3716 m 2 or less and in accordance with table 412 in nfpa 409 based on the type of construction and single fire area. Smoking should absolutely never be allowed inside an aircraft hangar. 2012 international building code utilizing the 41245 exemption 1 reads as follows. Sources of ignition heat or sparks and substances that burn and the people who may be at risk. It was project managed by fire engineering solutions and the equipment was supplied by delta fire australasia.
A hangar for cargolifter was built at brand briesen airfield 1180 ft 360 m long 705 ft 215 m wide and 348 ft 106 m high and is a free standing steel dome barrel bowl construction large enough to fit the eiffel tower on its side. Group iii hangars dont normally require fixed fire protection systems but check with your local building codes to be sure. A first aid kit and fire extinguisher should be kept within easy reach in the hangar and you should know how to use this equipment. The national fire protection association standard nfpa 409. For full information on the fire safety law please see the hse page and the governments fire safety law and guidance documents for business pages. If the existing fire water pressure isnt adequate the fire protection system may require a reservoir and booster pumps to satisfy the demand of the hangar space.
Your hangar fire risk assessment should identify what could cause a fire to start ie. When a group iii classified aircraft hangar requires a fire protection system a system utilizing the options and meeting the requirements for a group ii hangar shall be utilized. The outcome was a solution to the hangar fire protection challenge that has just been installed commissioned and tested and is believed to be the first of its kind in australia. Aircraft hangars shall be provided with a fire suppression system designed in accordance with nfpa 409 based upon the classification for hangar given in table 41246. For group i hangars fire suppression requirements are found in chapter 6 and in chapter 7 for group ii hangars. The main differences between group i and group ii hangars are.
Standard on aircraft hangars establishes fire protection criteria for hangars based on their size and construction type. Unseen explosive vapors can be emitted by fuel tanks and batteries that are being charged. When closed head sprinkler systems are chosen the group i design criteria is 017 gpmft 2 7 mmmin over 15000 ft2 1400 m 2 while group ii systems use the same density but with only a 5000 ft 2 460 m 2. If you engage in hazardous operations within your group iii hangar for example fuel transfer welding spray painting and torch cutting you need to follow the fire protection requirements for group ii hangars. Any membrane covered rigid steel frame structure used for the storage or servicing of aircraft is classified as a group.
Gallery of Hangar Free Fire
