25 Pounder info needed.

[Private_collector]

A couple more questions folks.
Sorry for the poor quality of the following photo.

111520.jpg

What is the item to left of the rope bundle??
If a shovel, it's not going to be very useful!

I occasionally come across photos showing box carrying brackets in locations forward of the shield. Why some do and aome don't? Is it worth recreating this on mine?

075604.jpg

And does anyone recognise the type of box behind the soldier.


WOW, just WOW!
011315.jpg
Impressive photo, but WHY does the flash curve upwards of the barrel angle?!?!?!

[Mike Cecil]

Image 1: looks like an an axe. Non-standard stowage, gun crew or Battery mod. A shovel ('Shovel, GS', British p/no JA1320) is the usual (and standard) stowage in that position.
Image 2: again, non standard stowage for a box about the size of the tool box that normally goes on the (true) right side of the trail. Box appears to be an AEME artificer's tool box: he seems to be working on the sighting system.
Image 3: camera lens parallax error? Don't really have a clue!


Mike

[Tony Wheeler]

Originally Posted by Private_collector

WHY does the flash curve upwards of the barrel angle?!?!?!

Interesting effect Tony, my guess would be hot combustion gas rising. Same principle as hot air balloon but somewhat hotter!

[jack neville]

Originally Posted by Private_collector

WOW, just WOW!
Attachment 79880
Impressive photo, but WHY does the flash curve upwards of the barrel angle?!?!?!

Simple! Richocheting off the edge of the photo!!

[Private_collector]

Yes Tony, moderately warmer than a hot air balloon. Combine the gun with the balloon, and you have the worlds largest airbag.

Wonder if I could use airbag propellant sets in my gun barrel.
I can almost see my nice wooden muzzle brake flying away at great speed. Single use only.

I made the second part of my sight door slide last night, and I was correct that it took only a fraction of the time to make. Now to join the two pieces without obvious signs. I have a cunning plan, get someone else to do it.

My ground anchor cover is on it's way from NL.
If you look on YouTube under "Museum Canadian Allied Forces opent haar deuren op nieuwe locatie" you can see who I bought it from. Mr Heiko Ates. The lucky sod has considerably more toys than I do.

[Dave Mills]

Originally Posted by Private_collector

A couple more questions folks.
Sorry for the poor quality of the following photo.
Attachment 79879
What is the item to left of the rope bundle??
If a shovel, it's not going to be very useful!

I occasionally come across photos showing box carrying brackets in locations forward of the shield. Why some do and aome don't? Is it worth recreating this on mine?
Attachment 79881
And does anyone recognise the type of box behind the soldier.


WOW, just WOW!
Attachment 79880
Impressive photo, but WHY does the flash curve upwards of the barrel angle?!?!?!

The handle I believe is that of the Axe.

It looks to me as the artificer has just been servicing the layers quadrant, could the box be his tool box?

As for the muzzle flash, maybe a ballistics expert can answer that one.

Dave.

[David Dunlop]

Could the last photo have captured the moment just after the firing of the gun and just before a facing wind starts to push the propellant gases away?

David

[Tony Wheeler]

Originally Posted by David Dunlop

Could the last photo have captured the moment just after the firing of the gun

It's actually a time exposure David, not an ordinary hand-held photo. That's why the camera has been placed on the ground to steady it. The shutter would be opened in the pitch dark, just before the gun fires, then the light of the flash illuminates the scene. In other words the camera captures the entire duration of the flash and afterburn, which is long enough to observe some rising of hot gases.

Originally Posted by David Dunlop

and just before a facing wind starts to push the propellant gases away?

Yes a facing wind would definitely increase the effect. Even a 10 knot breeze equates to 5 metres per second, so it's bound to have some effect.

[Private_collector]

I guess in light of the camera being set on tripod, it's also conceivable that the blast pressure could have moved camera enough to distort the image.

20160224_172821-resized-960.jpg 20160224_172747-resized-960.jpg

Decided to briefly afix the part of sight door track that goes aginst shield itself. I wanted to be absolutely sure I had filed the correct amount for door to sit nicely against it. Then measured the minimum distance I can overlap the top piece to the door, and what do ya know, I won't need to shave any more metal off the width. May thin the thickness about 0.5mm once the welding has been done. Welding will be about a two minute job, literally.

Incidentally, the part sitting on upper shield in first photo, is laying face down, so it's bass ackwards! Left is right, and right will be left.

[Tony Wheeler]

Originally Posted by Private_collector

it's also conceivable that the blast pressure could have moved camera enough to distort the image.

...or perhaps the blast pressure wave itself causing distortion Tony

blast pressure wave.jpg

[Private_collector]

Now THAT is a cool photo!