40 mm Bofors AA guns made in GB and US

[m606paz]

Originally Posted by Richard Suggitt

Hello Mariano,

I am a volunteer at an aircraft museum in England (http://www.shuttleworth.org/) ... we have a 1938 Bofors gun amongst the exhibits. On airshow days we set it up so that visitors can operate it and try and track aircraft. During this winter we have to start some maintenance and also try to reset the sights, which seem to be aimed badly. We are also interested in the corrector that you dismantled, and want to find out more about how it operates. Would you be willing to share your knowledge and experiences with us ? For example, how do you remove the sights ?

Many thanks
Richard

Hi Richard! Sorry for the delay to replay your mesagge.
I do not have much information to contribute to you, since it is blindly reassembled without having an exploded manual, nor do we know if it is well adjusted. As we only have it as a display, we have not studied the subject of the sight in depth.
If you need other photographs, I will gladly send them.
Best regards
Apologies for my English, it's not my native language.

[David Herbert]

Mariano,
I know British people who write English worse than you ! No need to apologise ! Yours is fine.

David

[Richard Suggitt]

Originally Posted by m606paz

Hi Richard! Sorry for the delay to replay your mesagge.
I do not have much information to contribute to you, since it is blindly reassembled without having an exploded manual, nor do we know if it is well adjusted. As we only have it as a display, we have not studied the subject of the sight in depth.
If you need other photographs, I will gladly send them.
Best regards
Apologies for my English, it's not my native language.

Hello Mariano ! Many thanks for replying to me. Please do not worry about your English... I only know about four words in Spanish.
We will keep investigating how our Bofors works and if we find something interesting I will post the information here. Notenoughtoys has kindly sent me some scans of a manual (unfortunately in the Finnish language) but one page does show an exploded view of the corrector (also called the calculator) and I am seeing what I can deduce from that.

Very best wishes
Richard

Best regards
Richard

[Richard Suggitt]

Originally Posted by m606paz

Hi Richard! Sorry for the delay to replay your mesagge.
I do not have much information to contribute to you, since it is blindly reassembled without having an exploded manual, nor do we know if it is well adjusted. As we only have it as a display, we have not studied the subject of the sight in depth.
If you need other photographs, I will gladly send them.
Best regards
Apologies for my English, it's not my native language.

Hello again Mariano ! I see from your photos that you removed the sights from (the boxes at the end of the cross-arm) before you resprayed your gun. Do you remember what you had to do to take them off ? We have to remove the sights on our gun, so we would appreciate your experience on how to do it.

Also... as far as I can tell, your gun has the same sights are ours. These were made by a company called AGA-Baltic. See.... http://www.aga-museum.nl/page/reflexsikte