DCS Reference: Labels

font_properties =  {"DejaVuLGCSans.ttf", 13, 0, 0, 2}

local aircraft_symbol_near  =  "˄" --U+02C4
local aircraft_symbol_far   =  "˄" --U+02C4

local ground_symbol_near    = "ˉ"  --U+02C9
local ground_symbol_far     = "ˉ"  --U+02C9

local navy_symbol_near      = "˜"  --U+02DC
local navy_symbol_far       = "˜"  --U+02DC

local weapon_symbol_near    = "*"  --U+02C8
local weapon_symbol_far     = "ˈ"  --U+02C8

local function dot_symbol(blending)
    return {"˙","CenterBottom", blending or 1.0 , opacity  or 0.1}
end

Distance conversions

Metric	Imperial	Nautical		Metric	Imperial	Nautical
305m	1,000'	0.16nm		9,260m	30,381'	5nm
1km	3,281'	0.54nm		10km	32,808'	5.4nm
1,524m	5,000'	0.82nm		15,240m	50,000'	8.23nm
1,852m	6,076'	1nm		18,520m	60,761'	10nm
2.5km	8,202'	1.35nm		20km	65,617'	10.8nm
3,048m	10,000'	1.65nm		27,780m	91,142'	15nm
3,658m	12,000'	1.97nm		30km	98,425'	16.2nm
4,630m	15,190'	2.5nm		30,480m	100,000'	16.46nm
5km	16,404'	2.7nm		37,040m	121,522'	20nm