I want something to be here but the number of guns in a salute to the president don't seem to matter as much as the intervals. Ten second intervals was the standard around 1871 before a stopwatch and cannon tech could keep up with a three second pace. https://www.nmrn.org.uk/news-events/nmrn-blog/6-facts-about-21-gun-salute
"The time interval between rounds in a cannon
salute will be 3 seconds except as follows:
When honors are rendered at funerals, in
which case the cannon salute will be fired at 5 second intervals.
When such interval is in conflict with
prescribed safety regulations for the type of cannon employed.
When such interval is not feasible
considering condition of ammunition and materiel, number of guns available,
proficiency of gun crews, atmospheric conditions, and other local limitations."
https://www.armystudyguide.com/content/army_board_study_guide_topics/customs_and_courtesies/personal-salutes-and-honors.shtml
I want something to be here but the number of guns in a salute to the president don't seem to matter as much as the intervals. Ten second intervals was the standard around 1871 before a stopwatch and cannon tech could keep up with a three second pace. https://www.nmrn.org.uk/news-events/nmrn-blog/6-facts-about-21-gun-salute
"The time interval between rounds in a cannon salute will be 3 seconds except as follows:
When honors are rendered at funerals, in which case the cannon salute will be fired at 5 second intervals. When such interval is in conflict with prescribed safety regulations for the type of cannon employed. When such interval is not feasible considering condition of ammunition and materiel, number of guns available, proficiency of gun crews, atmospheric conditions, and other local limitations." https://www.armystudyguide.com/content/army_board_study_guide_topics/customs_and_courtesies/personal-salutes-and-honors.shtml