If anyone wants to make a small Pirat. I found one on Thingiverse.
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SZD-30 Pirat
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The Pirat is a nice sailplane to fly. I am limited in space by what I can fit in a van. So four sailplanes, a mix of 1/4 and 1/3 scale stuff. I have been flying my 20 year old Robers Pilatus B-4 for years. It was always the first model out of the van. It is a really nice handling model. The question is, does the Pirat work as well. So far it has. Noreal bad habits. Obviously it doesn't have the performance of a bigger sailplane but it is just big enough to be something you can tow to an altitude for a decent flight time, even if there isn't any lift. The first flights were at Black Dirt in 2019
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Hi Michael
3.75 m wing span of 15m glider put the model 1/4 scale category
Pirat had constant cord central panel at 1030 mm , It should make root cord 257.5 mm. It is a pretty small root cord. Accidently or not it was a marvel of low drag high speed aerodynamics, but required hefty spar build up. Central panel is a one big continuous box spar
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The wing construction is odd when you compare the model to the real aircraft The real three piece wing was changed into a two piece design. The wing panels are built on a hinged building board for the tip dihedral.. The wing uses a round rod and you can use either a carbon or a steel rod depending on the weather conditions.
The wing mounts with some bolts and pins out the TE of the wing. You also have to attach the fairings at the middle after bolting on the wing.
It is a nice fiberglass fuselage and there is a good canopy frame with the kit. It is made with MGS epoxy. The only thing you have to add is the skid on the bottom.
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SZD-30 Pirat
SZD-30 Pirat
Wingspan 3.75m
Length 1.75m
Weight 4-5kg (Mine with pilot and everything is 5.75kg)
Root chord 265mm
Manufacturer - Oldgliders.com
Web Site - https://oldgliders.com/en/offer/szd-30-pirat-kit/
Main Wings - Two Piece
Main Wing Materials - Balsa / Ply / Pine / CF or Steel Joiner
Airfoil SD
Fuselage Single piece, high wing, single wheel fiberglass
Tail Removable stab, Balsa, Ply, Pine
Control Surfaces Ailerons(2), Spoilers (2) Rudder, Elevator, Tow Release
Picture of the model before first flights at Black Dirt.
The model is covered with Sig Koverall applied with nitrate dope. It was painted with KlassKote primer and color.
.Last edited by mlachow; 12-09-2020, 01:47 AM.Tags: None
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