The Pipe

I have one of these with the 'Columbus Shroud' fitted. Still working after 15 years use. http://www.elkay.co.uk/product.asp?id=1&catid=1

Pewsham Locks. http://www.thisiswiltshire.co.uk/news/12913621.Discover_Pewsham_Locks__explosive_past_in_sponsored_canal_walk/

In the aircraft industry we suffer from everything stiffness, fatigue and weight but these days the biggest problem is design to cost!

Ahh, Daniel a stresser who has forgotten how to do hand calcs. I just love the colours you get in fine white elephant analasis.

Any vertical member adds stiffness if you’re using angle the logical way is to weld one toe of the angle to the uxter plate so you have a vertical stiffener and a horizontal edge which will stop any chance of buckling of the vertical. Doing it this way will also allow you to easily put a board across the stiffening if you ever require installing something in the area. Orion narrow boats used 10X60 strips for their hull frames. I’m glad you found a photo for the correct way to install the angle I could not find one. Fortunately the people who pay me as a senior lead design engineer and approval signature for aircraft structures have a better view of my abilities than suggesting I go and play with cardboard.

Another NO. If your going to do it that way you might as well use 6X50 strip.

I remember going down Farmers Bridge when they were building the GPO tower so that must have been 1963 or 1964. As I was 10or 11 I drove the boat as I was not strong enougth to do the locks. These days people don't seem to let children drive boats.

Ray you forgot to mention the vandalism of the lock beams by shortening them so the cyclists would not bang there heads which has upset the balance of the gates for boaters. Personally I would have put a steel plate on the underside of the beam so there heads did not damage the beam. In the 60's it was great to go down in a childs eye dark, dank, noisey,smelly and empty pounds.

It needed quite a large brush to remove the helicopter and the remains of the hanger, helicopters seem to behave slightly different if they have a closed space above the rotor.

Suprising how things come about you start a thread about some railings and it leads to some pictures of Gas Street Basin and at the end of it one of your helcopters. I was in Sabah in 1973/4 and one of our helicopter pilots decided he would fly his Jetranger out of the hanger, a bit of a fail with that idea.

As this was started by Nick Norman if you go through the photo's you get this one as well. https://www.flickr.com/photos/loose_grip_99/195545387/in/photostream/

The term is 'dint' well used in enginering for small nicks etc.