CYA 9 inch Semi Circle Map Protractor manufacturer & wholesale map tools (1600814751965)

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Product Overview


CYA 9 inch Semi Circle Map Protractor

manufacturer & wholesale map tools


The batteries might die in your GPS but this protractor will always function!


Using the RA Protractor
The protractor should always be used when plotting grid references and bearings.
Always, check the scale of the map and scale of the Romer when plotting grids.
Tape up the yard scale Romer to avoid mistakes.
Use a line of cord from the centre point when plotting bearings, a plumb line.
Place protractor over the map and align the Northing’s and Easting’s with the zero lines and Romer grids.

The is the issued protractor, the meter scale Romers are on the left side;

these are the Romers that you should see.


Plotting Bearings
Ensure the map is on a flat surface.align the base line with the vertical lines on the map, the 0 should be in line with Grid North.All vertical and horizontal lines should be aligned with those on the map,overlay the centre point over your location on the map(Trig Point).Then draw a line or use a plumb line to mark a line from your location(Trig Point)to your target (church with tower). Where the line crosses the outer scale,it indicates the Grid Bearing from your position (trig point)to your target(church with tower).The puter scale is used when plotting bearings East and inner scale for Bearing West.To plot a back bearing from the church,turn the protractor to the left with the centre point over the church.Read off the inner scale and plot a bearing of 4500 mils back to the trig point.Choose two points on a map and practice the this procedure.

Product Description


9 inch Military Protractor 




9 inch 

MOQNo strict MOQ for cya items ; Regular MOQ 1000pcs for OEM
Sample Timewithin 3 days 
Delivery TimeRegular within 25 days for order over 1000pcs

300 pcs/ctn 

CTN Weight/Size

23.5 kg/ctn

Delivery MethodBy Air/Sea or Express like DHL/TNT/FEDEX/UPS



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CYA Map Tools


CYA Aviation


CYA Brand Concept

Brand Story


CYA Aviation was founded by Jason Zhao in 1995 and came to life with a desire to create the most innovative and need satisfying navigation equipment. Today, it’s a global brand that brings quality, accuracy, and reliability all together to users from various walks of life from around the world and helps them explore the world and realize dreams.
CYA Aviation started out small but with an ambitious vision, and a team of talented and gifted individuals at the time when there were only a few manufactures for aviation and military navigation equipment but none from Asia. This motivated the founder to start the journey with a vision to bring the most innovative navigation tools, maintain the highest quality and accuracy standards and become a proud manufacturer from China in the global industry.
With our dedication and hard work, we managed to live up to our vision throughout all these years and successfully collaborated with many of the prestigious organizations including the US Air Force; when we partnered with them to develop air navigation devices. And The Boeing Company; when we teamed up with them to produce need satisfying flight computers for their pilots. We strive to turn ideas into reality with precision and perfection by deeply understanding customer requirements, and develop tools from formative stages of an idea and design to finished products using only certified materials. Our Vision goes beyond bringing the best for our global users. We have a deep desire to help all our users to explore more of the world and get to their dreams and destinations seamlessly. For that purpose, we make use of the latest technology and adopt advanced production methods to produce the most accurate navigation tools that allow users to begin their exploration journey smoothly and accurately.
As a result of the continuous efforts of our dedicated team and massive R&D investments, in over 25 years we have successfully produced countless navigation instruments and registered numerous international patents, proving our ability to modernize our industry with simply exceptional flight navigation solutions.
Today, widely renowned as a Certified High-Tech Organization from China in the Global Flight Navigation Market and a leading brand within China, CYA firmly stays committed to exploring the future of civil and military navigation from its state-of-the-art innovation hub located at Asia's financial center – Shanghai. And as we keep tracing ground-breaking business routes across the planet, we still believe that only the courage to transcend our physical and mental boundaries can lead us and our partners to increasingly valuable destinations, to lands of success that can be mapped and reached only with the right tools, only if you dare to fly high, to explore, to achieve.




We serve by bringing inspiring innovation through a wide range of precisely created navigation equipment for the aviation industry, military soldiers, and hiking enthusiasts around the world ensuring a seamless navigation experience for everyone.




To thrive and inspire users by helping them explore more of the world with the most innovative, precise and quality navigation equipment.




We are Ambitious & Innovative
Innovation and creativity are everyone’s core values at CYA Aviation. Our people attempt to innovate in their roles and seek innovation as a whole to solve problems for clients and industry and continue on the transformation journey.


We help You Explore & Achieve
CYA Aviation was established because the founder had a strong will to bring the best for the customers in the aviation industry, we faced difficulties but we persisted and explored. We wish to join hands with others and explore opportunities and work together to achieve success.


We Operate with Honesty & Integrity
At CYA Aviation, we believe in doing the right thing no matter who is watching and regard integrity as an essential core value in our business activities. We strive to do everything with honesty as we believe it’s essential to building lasting relationships with all stakeholders.


What We Do


CYA Aviation is a team of experienced professionals providing personalized navigation equipment for pilots in commercial and civil aviation, student pilots, outdoor hikers and military soldiers navigating through land, seas, and skies.
We work together with our customers to bring some of the most exciting and accurate navigation supplies that we are proud of. We empower users to navigate freely and accurately around the world and help them grow toward their dreams.
CYA Aviation strives to produce only high-quality and cost-effective products for its customers at its state-of-art manufacturing facility located in Shanghai. We envision becoming a leading supplier in the global industry. With our dedication and hard work, we look forward to inspiring customers with the quality products we produce and change people’s perception towards ‘Made in China’.


Why Us


A Passion to Create the Best with Rich Industry Experience
CYA Aviation is run by aviation enthusiasts who make every effort to bring need satisfying and precisely created navigation tools for our users around the world. We have collaborated with many of the world’s renowned brands to deliver innovative and better quality navigation equipment for more than 25 years.


Committed to Bring Top Notch Quality - Cost Effectively
CYA Aviation spends 25% of its revenue on R&D efforts to boost innovation output to meet and exceed rising customer expectations. Unlike most of our competitors, our dedicated in-house teams pay closer attention to all the production aspects from the R&D stage to design and manufacturing stages. We have registered various international patents proving the ability of our hardworking and genius people. With all these efforts, we make sure our customers get the best
value for money.


Driven by A Desire to Help Users Realized Their Goals
At CYA, we are deeply in love with aviation and we love to fly high. We welcome all those who love aviation as much as we do, wish to explore the world of unlimited opportunities, and dare to fly high.

Our Services

1) Better fulfillment of contract due to our company reputation and chain management capability

2) 100% trustworthy and transparent service

3) Strong and professional quality control team insisting the responsible quality control you are emphasizing,

    with the procedure of sample confirmation before mass production and diligent quality check

    both in the factory during production and in warehouse before shipment

4) Warehousing, container booking, competitive ocean freight, trucking, export documentation, A-Z Service



Company Information

Cya Aviation Tech Ltd is specialized in developing and producing professional tools for navigation & military.

With adhering to '' Manufacturing Top Quality Product, Creating Honored Century Brand '' and years of unrmitting efforts, now cya has become one of the leading manufacturer for E6B Flight Computer, Navigation Plotter, and Military Supplies in China.The products have been highly appreciated by globalc customers, and exported to USA, Europe, Middle East, Asia, etc... Cya is headed by Doctor from Arizona State University in the US (ASU) and keeps close cooperation with University labs. We are advantaged with convenient transportation, factory located in the intersection of Metro & High Ways and adjacent to Pudong International Transport Center. Hope to have chance for cooperation!



0.0217 s.