Iran Topographic Quadrangle Maps (TPC charts). 1:500,000. NIMA. We offer the DMA TPC charts as an inexpensive alternative to the excellent Soviet-issue topographic maps listed here. Thirteen sheets offers 100% coverage of Iran. In English. World Aeronautical Charts, including TPC and ONC charts, cover land areas at a standard size and scale for navigation by aircraft operating at high altitudes. However, their level of detail makes them useful as topographic maps for those areas where little else is available. The topographical information includes city tints, principal roads, railroads, distinctive landmarks, drainage patterns, topography and relief. contour lines are at 500 feet intervals, with intermediate contours where appropriate, along with numerous spot heights. Color tints on a hypsometric scale are also shown. The aeronautical information includes visual and radio aids to navigation, airports, airways, restricted areas, obstructions and other pertinent data. There is less detail in some areas due to insufficient information - these areas are labelled on the charts. These are large maps, with a typical size of 42 x 56 inches. Due to the size and color variation of the different print runs and the Conformal Conic Projection, these maps do not splice together well. World Aeronautical Charts are not recommended for use by pilots of low speed, low altitude aircraft.