Ash and Canvas: Gers in Camp
One good thing about gers is how they resist wind. Because they are domed at the top, and all the force of the roof's weight is transfered down to the walls, when a strong wind comes it pushes the entire structure tighter to the ground, using the same aerodynamics that lift an airplane (only in reverse). I'm always glad of this when heavy thunderstorms come through. It wouldn't survive a tornado, of course, but as long as the materials hold, I'm fairly confident that the tent won't fail in linear winds.
Another plus is the fact that they have holes at the peak of the roof that can be uncovered in good weather. This lets air circulate as though the entire tent were a chimney. With the smoke hole open and the tent walls slightly raised, the air flow keeps the tent almost the same temperature as the outside.
Gers have walls that support rafters pegged into a roof ring. There are no internal supports, so a 16' diameter tent like the one Anne and I use, is entirely usable space with five or six foot tall walls at the outside and rafters that rise to a peak of 8 or 9 feet. The walls are a lattice of cross-bound staves that are arranged like those expandable baby gates: the lattice opens out to form a wall of diamond openings (see below). The latice is very flexible and can rollup fairly tightly.
The red column above is the wall (called the khana) of a 16' diameter tent with 5' walls. Like all of the new gers, they stained the wood of the khana, rafters, and roof rings to match and attached the staves of the khana with aluminum aircraft rivets.
Several of the new gers had quite impressive wooden doors on them. Unfortunately, I neglected to take pictures of them. Adding a wooden door to our tent is a project I've had in mind for some time now. Perhaps I'll make one for next year. For now, we're comfortable with a canvas door panel.
Labels: Field Trips, Gers, Pennsic

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