Our method

The Aircrew Forever Foundation placed the marker posts and accompanying information signs on the basis of its own research, supplemented by information found by others. The basis of the information is the reports by Mr Gerrit Zwanenburg, a former salvage officer in the Royal Netherlands Air Force, who carried out research when the polder was reclaimed.

We realise that the information may have become outdated over the years, because people (may) acquire new sources of information.

However, new information is not necessarily correct information. That is exactly what makes our work as a foundation so difficult. We want to put the right information on the boards and on the website. But when other information becomes available, we cannot change everything immediately.

We always try to place the marker posts at the available public space that is closest to the spot where the cockpit of an aircraft crashed.  After all, an aircraft can be scattered over a large area, and so in the past we have determined that the cockpit is our measurement point.

We are often approached with additional information, which could (partially) lead to other insights. However, as a foundation, we have determined that we will only adjust poles when the new information can be considered as irrefutably proven.

In our opinion, the signs may contain 3 types of errors:

  1. Errors in ranks and/or names, which can be clearly identified.
  2. Other insights, e.g. about the exact crash location.
  3. Differences of opinion regarding the layout of the signs.

In the case of errors in category 1, we will adjust the sign on this marking post after verification.

In the case of errors in category 2, we will take the comments to heart and, if reliable, include them on our website. Should these new insights eventually lead to irrefutable evidence, requiring the information on the sign to be adjusted, we will do so.

We will share this info via our website, so that we can form a publicly accessible file. This information must be supplied to us and be verifiable by our own advisers. It is not a question of whether our advisors agree with a new insight, but whether this new information could reasonably be correct. There will have to remain some form of control before we put information on the site.
We also want to know who supplies the information. Anonymous sources are not included in our analyses. On request, we can place information provided anonymously on our site, as long as we know who provided the information.

Differences of opinion in category 3 are included in our database. If the sign in question ever needs to be adjusted, we will include this information in the adjustment if necessary.
We also want to make clear that we as 4th May Remembrance Foundation Dronten are only responsible for the marker posts in the municipalities of Dronten and Lelystad.