Just an update in that the airframe piece the chute was attached to appears to have a Whitley part number??? “SP” which would fit with P5089 ditching in the area too.

I’m no expert on Parachutes but it appears to be post war to me due to the construction. There also seems like there could be more than one type of chute. Could they be ordnance chutes?

It was originally my thought that the chute might be related to the Vampire that went missing in the early 60’s but now I’m lost.