The term "retube" is a verb meaning to affix something with a new tube. This term is usually applied to guns or boilers. This can mean either replacing or changing the type of tube used by the equipment.
howitzer is a class of gun with many different variants you need to be more specific. but the max range of a M777 howitzer is 30.1 km (rap assisted).
A howitzer, of which there are many different types.
A large cannon fired at a high angle. See the related link to the M198 155mm towed howitzer and the M109A self propelled howitzer.
A howitzer must be borescoped every 180 days to be considered servicable regardless of if it has been fired or not.
mortar, howitzer
howitzers were made in the early 17th century
Yes, "Howitzer" is generally capitalized. It is a proper noun and refers to a specific type of artillery cannon.
A pack howitzer, or more properly, a howitzer, pack is a piece of towed artillery which can, if necessary, be broken down into pieces small enough to be man/team carried if terrain becomes too rough for towing vehicles.
krupp
howitzer artillery peices were not used in the civil war they actually started production in 1963 so no they werent in the civil war
A mortar. Actually, it's a Howitzer. Mortars are not a form of cannon.