They Were There
I know what the checkable sources say but it was the only place I have ever seen Javelins. I went to Gutersloh afterwards which flew Canberras and Swifts. Thence to Linton which flew Provosts and Vampires thence to Sealand which was an MU (no flying).
The Javelins were in the farthest hangar and pans from the guardroom if you have ever heard the engines fire up, they are unmistakable..