I've very recently unearthed a distant shot of a Belfast (XR371) coming in on what I'm pretty sure was the second of two practice ILS approaches to Manchester in November 1973-photo caption explains why photo is distant:
Belfast XR371 overflying home, Nov 1973e | Flickr - Photo Sharing!
So, can any former Belslow crew here possibly remember making those approaches way back then? If so, I was below you and I saw you!