There seem to be a lot of Darley/GCS-looking sirens in my area. I know that all of them (except one) are just Model 5s with weird housings, but I'm not exactly sure how to tell the difference between a Darley and a GCS.
First of all, we have this kind. I saw a video of one of these on Youtube where the person who posted it said that it was a GCS, but then changed the title and said it was a Darley. Could I have confirmation from the experts?
Second, we have one that looks like this. The overall shape is the same, but there are minor differences, such as the screen in front of the chopper, as opposed to the slits that the above kind has. Once again, I've seen people call these Darleys or GCSs. Which is correct?
And finally, we have something that's not a Model 5. It's about the same size as a Model 2, so I assumed it was either a Darley or GCS Model 2, but when I search for Darley Model 2s, I always find something different-looking. Searching for GCS Model 2 yields practically nothing. I have never seen a siren that looks like this one anywhere. I was thinking that it might be a Darley Model 3 (I know it's not a GCS, because I know what GCS Model 3s look like), but I can't be sure because I can't find anything on the internet. Hopefully someone will know what this thing is.
I really hope someone can answer my questions. I want to solve this little dilemma once and for all.