I'm not convinced that the blurry dot in the picture is actually a Harrier jet.
Nor am I, although it looks like a poorly-focussed Harrier to me. The (possible) wings suggest first generation, not AV-8B / Harrier II. Even if it is a Harrier, whether it's a model, a picture on glass, or real, is impossible to tell.
(I guess there's still the possibility of a transposed photographic detail? I don't know enough about photography to be confident that the Sheffield Hallam investigations rule this out; I get the impression from discussion here they probably don't.)
We just don't have any other evidence about what it is, other than
(1) The claimed witness accounts, via Mr Lindsay. They refer to a jet, possibly a Harrier. Those claims have almost no checkable provenance at present.
The accounts describe something remarkable which has not been reliably documented before or since, although broadly similar claims, sometimes photos, have been shown to be hoaxes. The Calvine photo together with the account (a large hovering object, a silent very rapid ascent) seem intrinsically improbable. The simplest (and perhaps most likely) explanation is the whole thing is a hoax.
(2) The UK Ministry of Defence opinions on the photo negatives, and 5 others. They "established" one aircraft was a Harrier and that a second barely visible aircraft was "probably" a Harrier.
They also noted there were no records of Harriers flying in the area at the time claimed. There is no evidence of any great MoD
concern re. the photo or account.
We do not have access to any negatives, and our picture is possibly a copy of a copy as
@NorCal Dave has pointed out.
The second aircraft implies there was more visual information available across the six photos than we have in our one.
We do not know what technical resources were used (if any) to inform the MoD's conclusions; but the MoD would have had access to professional photographic analysts.
It is frustrating that we cannot examine the evidence delivered to the MoD, and we cannot examine their investigation or decision-making, but the conclusions drawn- on superior evidence than we have- are a matter of public record.
We can't know if those conclusions were right or wrong, of course.
So, once again, if we're to believe the backstory: someone was secretly watching a stationary UFO, waited until a jet came into view, and immediately snapped six photos within a few seconds.
But- possibly apart from David Clarke's retelling of what Lindsay told him, that
isn't part of the backstory.
You (sensibly) raised the the same concerns on the "Original Calvine..." thread, which caused me to do a bit of re-reading;
it is not claimed that the jet was photographed six times, and it is not claimed that photos featuring the jet were taken during the same pass.
Then there's the fact that the six alleged photos are said to show the Harrier moving from right to left while the "UFO" remains fixed in the same spot. Given the size of the "jet" in the one picture we have, it must have passed through the scene incredibly fast.
We don't know (IIRC) if the jet appeared in all 6 photos.
From the archived MoD file (Lindsay's cover letter?- or a summary of it) ref. as above:
External Quote:
During sighting RAF aircraft, believed to be a Harrier, made a number of low level passes for 5 to 6 minutes before dissapearing off.
The "Loose Minute" from D/Sec(AS)12/2, 14 September 1990 says
External Quote:
They show a large stationary, diamond-shaped object past which, it appears, a small jet aircraft is flying.
I
feel "...it appears..." is a qualifier.
David Clarke's blog,
https://drdavidclarke.co.uk/secret-files/the-calvine-ufo-photographs/; though basically re-hashing the same sources:
External Quote:
During the sighting both also saw what they believed was a RAF Harrier jump jet make [a] number of low-level passes. During this time a series of six colour photographs were taken by the informant and '1 unidentified other [person]'.
I'd sort of assumed that the claim was that the pictures were taken during one pass of the (claimed) jet, but I can't find evidence that this
was the claim of the original (claimed!) witnesses.
We can't criticize the claimed narrative on what is assumed to be the case, but which in fact isn't part of the original claim.
I also wonder why the need to explain away parts of the photo that are not the UFO
Have some sympathy with this. It might be a bird, if it's part of a photograph of a body of water it could a distant rowing boat, some sort of nondescript floating debris or a reflection of a jet or bird.
But as far as I can tell no-one has established that it's a photograph of a body of water- just that a hoax using that technique might be possible. Just as Wim van Utrecht has shown that dangling models on fine gauge fishing line allows a similar scene to be photographed.