Cookie Policy

To make this site work properly, we sometimes place small data files called cookies on your device.

What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

How do we use cookies?

Cookie Description
UMB-UCONTENT,UMB-UPDCHK,UMB-XSRF-TOKEN, UMB-XSRF-V These cookies are used to prevent cross-site scripting attacks for your safety.
__atuvc This cookie is associated with the AddThis social sharing widget which is commonly embedded in websites to enable visitors to share content with a range of networking and sharing platforms. It stores an updated page share count.
__atuvs This cookie is associated with the AddThis social sharing widget which is commonly embedded in websites to enable visitors to share content with a range of networking and sharing platforms. This is believed to be a new cookie from AddThis which is not yet documented, but has been categorised on the assumption it serves a similar purpose to other cookies set by the service.
_ga This cookie name is asssociated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default it is set to expire after 2 years, although this is customisable by website owners.
_gat This cookie name is associated with Google Universal Analytics, according to documentation it is used to throttle the request rate - limiting the collection of data on high traffic sites. It expires after 10 minutes.
_gid This cookie name is asssociated with Google Universal Analytics. This appears to be a new cookie and as of Spring 2017 no information is available from Google. It appears to store and update a unique value for each page visited.
datAuthCookie This cookie is used to store your login session ID, enabling you to stay logged into our website.
Munchkin (_mkto_trk) This allows a website to track visitor behavior on the sites on which the cookie is installed and to link a visitor to the recipient of an email marketing campaign, to measure campaign effectiveness. Tracking is performed anonymously until a user identifies himself by submitting a form.  At which point, it becoems possible to understand how a user interacts with the website.

How to control cookies

You can control and/or delete cookies as you wish – for details, see You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.

Personal Data

We will collect the data that you provide when you fill out a form on the website.  We will store that information in a database.  We use that information to follow-up and we may use that information for future marketing outreach campaigns.  Follow-up and outreach campaigns will normally be through an Email.  You may unsubscribe from the mailing by clicking the unsubscribe link that appears at the bottom of the email.  You should receive an Email shortly after downloading most resources on this website, other than DM1172.   We may use the information to re-market to you.  For example, we may contact you with offers or more information about aircraft where you have downloaded information about that same aircraft.  Or where you have downloaded a technical resource we might send you future versions.  When you search for a product on our website, the IP address will be recorded to enable analysis of how this website is used.  We will not sell your EMail address data. To track the effectiveness of its campaigns Dunlop, uses web tracking software on this site.  This works through Cookies.  

 If you want to clear all cookies left behind by the websites you have visited, here are links where you can download three programs that clean out tracking cookies:


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