Just to catch up and understand the detail – the sonobuoy part is marked with

With T7725 use DIR
With T9003 use SSQ.

Both these were UK sonobuoys from the 1950/60’s

The T9003 was a Directional Passive Sonobuoy.

Thanks to Smirky we can confirm that is the top direction finder from a Mk1C sonics receiver as used on ASW Shackletons.

Much appreciated.

Andy yes both of the same part – looks like a tuner.

I managed to get the time to give the hatch a clean and tidy today.

It is cleaning up well but will need complete dismantling to repair the perspex panels..

When compared to the Blenheim V image ( from internet ) it is a perfect match for the Navigaors hatch.

It measures at 4 ft long on longect side.

I assume that there are no Blenheim V’s remaining that need a hatch ?

Mike just taken an eraser and removed the offending SPITF…. words from the top.

I am 100% sure it is B25 H or J

Just one question – There are several B25 H and J survivors with the intake on the Port side.

But there are also several without.

Is this a theatre specific addition or is it that for restoration or fuel economy reasons that they have been deleted over time ?

a 98 part number fits with Mossie, P2V and B25H.

The paint and construction are very American.

Just checking some images of B25 late models and there is the same shape and sized air intake on the port side nose ( just behind forward glasshouse.).

http://cyberplasticmodeler.blogspot.co.uk/2016/05/aircraft-walkaround-vol-67-north.html

Where there is a will there is a way – pics.