Colonial Surveyor – Determining your Position using Celestial Navigation

A sextant is an intimidating complex instrument.  It consists of an A-shaped frame with an apex of 60° on a sextant or 45° on an octant.  Along the rounded lower edge of the frame is an arc, the limb, that is marked with numbers for the degree of the angles that the sextant can measure. An index …

Beer Recipe: Victory at Yorktown

October 17, 1778, General Charles Cornwallis raised a flag of truce over the fortifications at Yorktown after having suffered not only the combined French and American attack but also disease, lack of supplies, inclement weather, and a failed evacuation. With the French navy in the York River and siege lines advancing on his position, defeat …

Historical Tidbits

When reenacting or acting as a historical interpreter, its good to have a few historical dates and stories to share. This series will publish a few. May 30, 1783 – The Pennsylvania Evening Post became America’s first daily newspaper. Benjamin Towne published the first issue of the Post on January 24, 1775. The paper was supportive of …

Historical Tidbits

When reenacting or acting as a historical interpreter, its good to have a few historical dates and stories to share. This series will publish a few. May 29, 1787 – At the Constitutional Convention in Philadelphia, the Virginia Plan calling for a bicameral legislature, an executive, and a judiciary branch of government was proposed by …

Upcoming Event

“Hands on”  18th Century Surveyor class  May 29, 2021 — 11:00 am & 2:00pm (two sessions) 11:00 – 12:00             Mapping the Fort (urban surveying)Military survey of grounds inside the fortPreparation of plat plan for use by military architect1:00 – 2:00                  Wilderness Survey (beyond fort’s walls)Military survey of trail and paths to mortar casematesPreparation of surveyor’s …

Mapping the Fort – 18th Century Surveying at Fort Mifflin

We will be conducting an 18th Century Surveying Class on May 29th at Fort Mifflin. Join us to learn the art and science of surveying the land in the 18th century manner. We will measure and map the Fort interior at 11 am and learn basic surveying and mapping skills then take a “Wilderness” expedition …

Vector Computations without the Benefit of Modern Trigonometry

Navigating from point to point is a relatively simple task for most surveyors or mariners.  You establish a compass bearing from where you are to your intended location then measure out the distance (or in the case of sailing a speed and a time) to the new location giving what we call today a vector.  …

Mapping the Fort – 18th Century Surveying at Fort Mifflin

We will be conducting an 18th Century Surveying Class on May 29th at Fort Mifflin. Join us to learn the art and science of surveying the land in the 18th century manner. We will measure and map the Fort interior at 11 am and learn basic surveying and mapping skills then take a “Wilderness” expedition …