page_title: Model engine
hierarchical_section_title: Model engine
caption_attribution_description: English: I bought a Cox RTF model and some spare engines and parts in 1979. Most of these parts were among those. There has been some part shuffling, but nothing other than the glow head has needed replacing.
context_page_description: A model engine is a small internal combustion engine typically used to power a radio-controlled aircraft, radio-controlled car, radio-controlled boat, free flight, control line aircraft, or ground-running tether car model.
  Because of the square-cube law, the behaviour of many engines does not always scale up or down at the same rate as the machine's size; usually at best causing a dramatic loss of power or efficiency, and at worst causing them not to work at all. Methanol and nitromethane are common fuels.
context_section_description: A model engine is a small internal combustion engine typically used to power a radio-controlled aircraft, radio-controlled car, radio-controlled boat, free flight, control line aircraft, or ground-running tether car model.
  Because of the square-cube law, the behaviour of many engines does not always scale up or down at the same rate as the machine's size; usually at best causing a dramatic loss of power or efficiency, and at worst causing them not to work at all. Methanol and nitromethane are common fuels.
caption: An old Cox Golden Bee 0.049 cubic inch (0.8 cubic cm.) reed valve engine disassembled. The weight is two and a quarter ounces with the propeller and large fuel tank, but without fuel.
exif: {"Image Make": "Canon", "Image Model": "Canon PowerShot A520", "Image Orientation": "Horizontal (normal)", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2007:08:11 15:42:56", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "196", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "180", "Thumbnail YResolution": "180", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2548", "Thumbnail JPEGInterchangeFormatLength": "4177", "EXIF ExposureTime": "1/20", "EXIF FNumber": "13/5", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2007:08:11 15:42:56", "EXIF DateTimeDigitized": "2007:08:11 15:42:56", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "5", "EXIF ShutterSpeedValue": "69/16", "EXIF ApertureValue": "11/4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "11/4", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "93/16", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2272", "EXIF ExifImageLength": "1704", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "2272", "Interoperability RelatedImageLength": "1704", "EXIF InteroperabilityOffset": "1860", "EXIF FocalPlaneXResolution": "71000/7", "EXIF FocalPlaneYResolution": "71000/7", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Manual", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard"}