Moisture is a common malfunction of the GPS.ĭon’t let yourself be caught relying solely on electronics or batteries that can fail you. It can be jammed and detected when near or behind enemy lines.

GPS readings are distorted during thunderstorms, electronic interferences and when bombing support is very close on enemy positions. The GPS will not penetrate sandstorms, rainstorms, snowstorms, smoke, structures, forest canopies, and thick cloud cover. Protractors without the conversion formula will provide a reading that is off the exact grid coordinate position. MILITARY STANDARD - Equivalent to the standard issue Army protractor. Each protractor comes with printed instructions on the clear plastic. DURABILITY - This protractor is made of a thicker and more durable material than. Their devices aid map work, land navigation, and plotting indirect fire support. New old stock- with some shelfwear-scuffs and small scrapes on the protractor scale. The RM Military Square Protractor is the only protractor with a printed formula and a diagram to align map grid north to match the compass magnetic north. RM Products makes the most widely trusted protractor on the market. RM PRODUCTS Military Triangle Scale Protractor. The protractor is used with a military map with preprinted gridlines to help a soldier figure out locations and gauge distance. Description: The Military map protractors are one of a number of. Plastic military protractor with 3 right angle map coordinators used by Rudolph Sichel, a Jewish refugee from Frankfurt, Germany, who served in the US Army in Europe from July 1944 to June 1946. The only known BACK-UP of the GPS when it malfunctions is your ability to use a military protractor and sighting compass. Kearing Semi Circular field kit 9 inch Military Protractor for accurate map reading KMP-3. This protractor is clearly marked with mils measurements and romer markings for plotting bearings. Marked with degrees and mils measurements around the circumference of the protractor. Has three inner triangles to mark the map with distance. Military Coordinate Scale Protractor (5 X 5) Is An Ideal Tool For Military Personnel To Use In Tandem With A Map To Mark Their Location And Destination. One in my collection had been re- packaged (in polythene) in December 1976.Description Military Square Protractor #21 CYA - MP-1 - 6 inch Semi Circle Military Protractor. Commercial equivalent to US NATO Map Navigation Hiking Coordinate Scale & Protractor GTA 05-02-012. It remained in service long enough to acquire a NATO number W10 6675- 99- 445- 2112.

The scales on one side, from top to bottom are: yards 1 inch = 1 mile yards 1/4 inch = 1 mile miles 1/4 inch = 1 mile yards 1:20,000 metres 1/4 inch = 1 mile metres 1 inch = 1 mile. The last ones made, including those made by Blundell Rules Ltd, were made of un- reinforced PVC and renamed Protractor Rectangular 6” Opaque ‘A’ Mk 4.

Later ivorine ones were not reinforced and the one pictured above is one of those. The earliest ones were reinforced in the ivorine with metal mesh and carried the patent number 361012/30 so it presumably replaced the AIII about 1930. Later protractors were transparent and semi- circular. The A Mk IV was the last, special design of British military rectangular protractor. Protractor Rectangular 6 inch Ivorine A Mk IV.

Military protractor