The SkyDemon plate for Home Farm Fields grass strip shows a length of 650 metres. Yet looking at the scale on the SD plate (which is for 200m) it is clear that Home Farm Fields is more like 400-420 metres - (this is also the length I get when measuring on Google Earth). I presume that the 650 metre length has come from another source (AFE Flight Guide?), but I wondered if SD could maybe include something that shows the SD measured distance based on the SD plate graphic as compared to the published distance as an additional piece of safety information. Particularly when there is such a large discrepancy? (PS I am in contact with the airfield owner to get this looked into as a published length of 650m for a 400/420m strip is a bit of a safety concern)

It's true that the physical dimensions of a runway can be different to the declared dimensions but it isn't clear what we would be in a position to do about this. We publish the dimensions that are given to us; any measured dimensions apparent from the actual surfaces are not published.