{"title":"Instruments","description":null,"products":[{"product_id":"emnav-navigator","title":"EmNav NAVIGATOR","description":"\u003cp dir=\"auto\"\u003eMade to order. Typically ships in 3–5 business days.\u003c\/p\u003e\n\u003cp\u003eA 5.95-inch laser-engraved circular instrument that combines a Bagnold-style sun compass, logarithmic C and D scales, deliberate-offset math, a clinometer, and an Equation of Time \/ sun-declination plot in one pocket disk set.\u003c\/p\u003e\n\u003cp\u003eThe NAVIGATOR is the full EmNav system: a Base Disk, a 4.5-inch inner small disk, and dual index arms. Rotate the inner disk to multiply, divide, convert, and chain land-nav problems the way a circular slide rule always has — then hang it from the gnomon eyelet and steer by the sun. When GPS dies or you simply want a backup that cannot be jammed, this is the instrument you reach for.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/Website_Manual_Short.pdf?v=1790883923\"\u003ePreview the manual. \u003c\/a\u003e(Full PDF emailed with the disks). Printed copy sold separately.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the package\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5.95 in laser-engraved ABS Base Disk (front and back scales)\u003c\/li\u003e\n\u003cli\u003e4.5 in inner disk with C scale, clock scale, and back-azimuth\u003c\/li\u003e\n\u003cli\u003eDual index arms with READ marks\u003c\/li\u003e\n\u003cli\u003eCenter gnomon screw, leveling eyelet, and 45° secondary gnomon hole\u003c\/li\u003e\n\u003cli\u003eSmall gnomon to pair with the plumb-bob\u003c\/li\u003e\n\u003cli\u003ePlumb-bob weight\u003c\/li\u003e\n\u003cli\u003eSpare hardware\u003c\/li\u003e\n\u003cli\u003eField manual PDF emailed with the order\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"navigator-spare-kit\"\u003eSpare kit sold separately.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBase disk: 5.95 in (151 mm)\u003c\/li\u003e\n\u003cli\u003eInner disk: 4.5 in (114 mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: high-contrast engraved ABS\u003c\/li\u003e\n\u003cli\u003eMarkings: permanent laser engrave — will not rub off\u003c\/li\u003e\n\u003cli\u003eEnvironment: waterproof, washable, fuel-resistant\u003c\/li\u003e\n\u003cli\u003ePower: none. Ever!\u003c\/li\u003e\n\u003cli\u003eOrigin: small-batch, Made in the USA\u003c\/li\u003e\n\u003cli\u003eWrite-on the face: pencil notes wipe clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eScales on the face\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eForward and reverse 360° (two sets)\u003c\/li\u003e\n\u003cli\u003eStandard C and D logarithmic scales\u003c\/li\u003e\n\u003cli\u003eForward and reverse 12-hour solar clock (15°\/hour)\u003c\/li\u003e\n\u003cli\u003eIndependent back-azimuth scale\u003c\/li\u003e\n\u003cli\u003eSun declination and Equation of Time plot (under inner disk)\u003c\/li\u003e\n\u003cli\u003eFull-moon dates for moon-compass use\u003c\/li\u003e\n\u003cli\u003eDeliberate offset and turn-angle scales\u003c\/li\u003e\n\u003cli\u003eKM \/ mile \/ nautical mile conversion cursors\u003c\/li\u003e\n\u003cli\u003eSlope factor (percent grade and angle)\u003c\/li\u003e\n\u003cli\u003eSun altitude and clinometer\u003c\/li\u003e\n\u003cli\u003eLatitude and longitude formulas\u003c\/li\u003e\n\u003cli\u003eGeneral purpose edge ruler: 19.25 ticks\/inch, 7.58 ticks\/cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho it is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLand navigation enthusiasts\u003c\/li\u003e\n\u003cli\u003ePreppers who want a navigation backup that does not depend on GPS, batteries, or a firmware update\u003c\/li\u003e\n\u003cli\u003eSERE instructors and military navigators\u003c\/li\u003e\n\u003cli\u003eHikers, overlanders, and sailors who already carry a compass and want a backup navigation method\u003c\/li\u003e\n\u003cli\u003eAnyone who wants to travel by the Sun and not by electrons\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNot certified marine, aviation, survey, or SAR equipment. Educational instrument. Cross-check anything that matters.\u003c\/em\u003e\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44324611752014,"sku":"EMNAV-NAVIGATOR","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/hero-disk.jpg?v=1789255078"},{"product_id":"emnav-printed-field-manual","title":"EmNav NAVIGATOR Printed Field Manual","description":"\u003cp\u003eA small-format, black-and-white printed edition of the EmNav NAVIGATOR field manual. The same pages emailed as a PDF with every instrument, sized to live in a back pocket.\u003c\/p\u003e\n\u003cp\u003ePaper is sold separately from the disks. Saddle-stitched, pocket trim, printed to order and drop-shipped. No color plates. Sun compass, circular slide rule, deliberate offset, slope, noon-sun latitude, moon compass, and the legal statement. Educational companion, not a navigation brief. The PDF is still emailed with the NAVIGATOR; buy this only if you want a copy that does not need a screen. Coming soon.\u003c\/p\u003e\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSmall-format field manual\u003c\/li\u003e\n\u003cli\u003eBlack-and-white interior and cover\u003c\/li\u003e\n\u003cli\u003eSaddle stitch, pocket trim (4.25 × 6.875 in)\u003c\/li\u003e\n\u003cli\u003ePrinted to order and drop-shipped\u003c\/li\u003e\n\u003cli\u003eSame content as the emailed PDF\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44324611850318,"sku":"EMNAV-MANUAL","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/manual-cover-bw_1.jpg?v=1789608775"},{"product_id":"emnav-evasion","title":"EmNav EVASION","description":"\u003cp\u003eA simpler, smaller disk designed for escape-and-evasion where size, weight, concealment, and speed matter more than the accuracy of a full EmNav NAVIGATOR. Coming soon.\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44324611948622,"sku":"EMNAV-EVASION","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/coming-soon-evasion.png?v=1789482027"},{"product_id":"emnav-nautical","title":"EmNav NAUTICAL","description":"\u003cp\u003eA marine-oriented circular instrument for coastal and offshore backup: knots, nautical miles, LAN latitude, and sight-reduction math that pairs with the \u003ca href=\"emnav-BREES\"\u003eBREES\u003c\/a\u003e emergency sextant— without an almanac!\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44324612014158,"sku":"EMNAV-NAUTICAL","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/coming-soon-nautical.png?v=1789481996"},{"product_id":"emnav-brees","title":"EmNav BREES Emergency Sextant","description":"\u003cp\u003eWhen an improvised clinometer is not enough for an accurate latitude reading: two optical glass plates and a micrometer that returns the sun’s altitude much more precisely, and fits in your change pocket. Can be used on land or on the water.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"emnav-NAVIGATOR\"\u003eNAVIGATOR’s\u003c\/a\u003e plumb-bob clinometer will take a noon-sun altitude, but a hanging string and a shadow only go so far. BREES is the tighter analog instrument: two optical glass plates and a micrometer that computes solar altitude. There is no arc, no vernier, and no engraved scale. Read the altitude directly from the micrometer. Training and emergency backup; not a certified marine sextant. Coming soon.\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44324612112462,"sku":"EMNAV-BREES","price":129.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/coming-soon-sextant.png?v=1789481962"},{"product_id":"emnav-evasion-compass-set","title":"EmNav Evasion Compass Set","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTwo small, powerful magnets. A compass you can hide.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTwo evasion compasses: an \u003cstrong\u003eaperture\u003c\/strong\u003e (ring) compass you peep through, and a \u003cstrong\u003ebar\u003c\/strong\u003e compass you float, suspend, or tap on a card. Rare-earth. Two poles. High strength-to-weight. Small enough to sew into clothing or disguise as something else.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAll compasses are magnets. Not all magnets are compasses. A sewing needle in a puddle, a fridge magnet, or a disk magnet will not hold an azimuth. These will.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAperture compass\u003c\/strong\u003e\u003cbr\u003eTie about 1 ft of line through the hole. Dental floss is better than thread; parallel fibers, not much twist. Hold it at arm’s length and sight through the taper like a peep sight: equal shadow on both sides. Taper = south. Flat = north; verify your compass with Polaris or the Sun at LAN. Let it settle in a breeze. Pick a distant object in the window. That is north. From the side you can take east or west; it is harder without the aperture, and the piece is harder to hide. It may tip slightly down. That is magnetic dip, not a defect.....depends on how far you are from the magnetic pole.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eBar compass\u003c\/strong\u003e\u003cbr\u003ePoles at the ends. Float it, hang it, or set it on a smooth non-metal surface (business card, plastic, glass). Hold the card level, tap lightly. The bar lines up north–south. Sight down the side to a terrain feature, or use it on a map. You can paint the north end red or luminescent. Easy to conceal. Easy to lose. North and south only.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAzimuth, not just “north”\u003c\/strong\u003e\u003cbr\u003eWith practice, magnetic north to about 1–2°. At arm’s length, one index-finger width is about 1°. Train that on a known compass before you need it. Find north, then count fingers to the azimuth.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eNot this\u003c\/strong\u003e\u003cbr\u003eNot a lensatic. Not a certified nav instrument. Not a toy. Strong rare-earth magnets: keep away from phones, cards, pacemakers, and small children.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eComes with a cardinal card and instructions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eComing soon. PDF manual emailed when it ships.\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44351485378638,"sku":null,"price":29.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/coming-soon-compass-round.png?v=1789673619"},{"product_id":"navigator-spare-kit","title":"NAVIGATOR Spare Kit","description":"\u003cp dir=\"auto\"\u003eA spare index arm, plumb-bob weight, center screw with washers, and gnomons. The NAVIGATOR ships with hardware. This bag is for the piece that gets lost in the grass.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe disks survive. The small parts do not always. Index arms snap at a score. Gnomons and plumb weights disappear. This is the same hardware the instrument use, not a substitute screw that binds the inner disk. Fits the NAVIGATOR. Not a complete instrument.\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eOne extra index arm (READ marks, same length as issued)\u003c\/li\u003e\n\u003cli\u003ePlumb-bob weight\u003c\/li\u003e\n\u003cli\u003eCenter screw with washers\u003c\/li\u003e\n\u003cli\u003eSpare long and short gnomons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eSpare hardware. Cross-check anything that matters.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSpare kit sold separately.\u003c\/p\u003e","brand":"Emergency Navigation","offers":[{"title":"Default Title","offer_id":44355340369998,"sku":null,"price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9476\/9486\/files\/spare-icon-hex-nut.png?v=1789765453"}],"url":"https:\/\/emergencynavigation.com\/collections\/instruments.oembed","provider":"Emergency Navigation","version":"1.0","type":"link"}