If you notice, I have made my helicopter site using flat web design. This means you don't have to drill down and down and down into the site to find information.
All that's needed is to navigate to the site map and click on the helicopter topic you are looking for. Two clicks. One click to find the site map and one click to find the page you want to view. The you can click the back button on your browser (or click on the Site Map link) to get back to the site map.
You might have noticed, if you scroll down to the bottom of each page, the site map is there. The site map is on the bottom of all the HelicopterLinks.com web pages. Actually, depending upon the user, a user might only have to make one click on the site, to find what they are looking for.
Actually, a scroll down first, and then a click.