Grapeshot

fernando · 11th August 2019, 04:50 PM

Quote:

Originally Posted by kronckew

More properly called 'Mortars' for their appearance, looking like the mortar of a mortar and pestle, they indeed were mounted so that they recoiled downward.

Right Wayne; 'Morteiro' and not 'Obus'. Still you caught my drift in that they fired a (here technically called) 'vertical' shot and did not kick backwards... which was the subject.
Also in local military terminology cannons (or pieces) fire 'tense' shot, and howitzers a 'curved shot'.

kronckew · 11th August 2019, 05:57 PM

The artillery equation. For any given initial velocity, there is an angle Theta of elevation that will hit the target as long as it is less than maximum range, which is achieved at 45 degrees. The angle 90-theta will also hit the target. Differences in elevation, wind and air resistance may affect the results, as well as the earth's rotation at longer distances

11th August 2019, 05:57 PM	#2
kronckew Member Join Date: Mar 2006 Location: Room 101, Glos. UK Posts: 4,228	The artillery equation. For any given initial velocity, there is an angle Theta of elevation that will hit the target as long as it is less than maximum range, which is achieved at 45 degrees. The angle 90-theta will also hit the target. Differences in elevation, wind and air resistance may affect the results, as well as the earth's rotation at longer distances Attached Images