Tanks and bombing ranges

I wonder if this is the 9lb AT bomb that was dropped in attached pairs? They did make a practice version of it, can't recall the date, so I wonder if the practice ones were used as a dropping test. I have a feeling there is another AVIA file from around that date on anti-tank bomb tests so this may be the same test.

As for the rewards, I have come across a couple of papers on reward requests post war and they were from, then, serving officers who I thought couldn't claim such rewards. I assume Jeffries was a civilian during the war?

Edit;

This is at TNA

Reference: AIR 20/4745 Description: Jeffries anti-tank bomb
Reference: AVIA 15/1631 Description: Trials and development (Code 12/2): Anti-tank bombs; trials.

I'm there tomorrow (22/02/2014) so might order them, they will probably be small and the second one in on my list of 200+ to look at.

I had a quick look at the TNA file and the Jeffries bomb was indeed an air dropped anti-tank bomb based on the hollow charge. The 9lb AT bomb (not yet clear if this was the Jeffries bomb) was produced (50,000) some went to the North African front and some actually went to Bomber Command. In use, however they were not satisfactory as they were prone to sympathetic detonation, sometimes in flight and also the ballistics meant that the full effect of the shaped charge was only successful in very few strikes. It was decided that luck was the major factor rather than the accuracy of the pilot. Bomber Command certainly dropped the weapon from its list of bombs in 1943, which explains its presence in the bomb AP. I will go through the file later in the week so will be able to sort out the sequence of events more accurately.

The 9lb AT bomb was also tested on a white painted train which was at steam on a part of the same railway line that was used for Highball tunnel tests.

A lot of the original tests were carried out at M.D.1. which I believe was at Whitchurch, which I have in my mind in the Home Counties. It was not used for air tests so I haven't looked into it. Was Jeffries a Brigadier as a Brigadier Jeffries attended the locomotive tests?