In Google or Bing or Duckduckgo search engine/web browsers
Type--- APC Propellers
Your first top result should be
www.apcprop.comAPC Propellers | Quality Propellers that are Competition Proven
APC model aircraft propellers have been designed and manufactured in the USA, and are competition proven for electric and gas powered model aircraft.
Performance Data
The performance data are based on vortex theory, using actual ...
Contact
Please contact us at anytime, emails and phone messages ...
---- I made this bold for you to notice it
https://www.apcprop.com/contact/ this is where clicking on contact will take you
In this case you can use the links in this post
Technical Information
Technical Information. CHOOSE A SUB CATEGORY ON THE SIDE ...
FAQ
The APC website has several tools to help you find specific ...
RPM Limits
The following are suggested RPM limits for APC propellers: Glow ...
About
About. Welcome to APC Model Aircraft Propellers. “Quality ...