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  1. F

    CAD for wiring diagrams

    Prof J One wiring CAD program I have found extremely useful, Is TinyCAD This is a program that runs in windows and has stored any connector you want.
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    Could a wooden sailplane beat a fibre glass/carbon sailplane in L/D ?

    The Bowlus baby albatross was made in a similar fashion without the balsa core it was made in the same fashion as a cold molded boat where plies were laid up on a mold one at a time in different directions to make a cold molded plywood shell.
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    Could a wooden sailplane beat a fibre glass/carbon sailplane in L/D ?

    There is a company in Great Britain named Permalli Who has been making densified wood since the first world war. Manufacturers of Advanced Composite & TPU Solutions - Permali They may have a distributor in this country.
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    CAD Software

    Greg, I ran into a similar problem when I retired I was using SolidWorks . A program I use now is Alibre It is very similar to Catia or SolidWorks. Alibre is currently Running a lifetime License sale of $ 100. As with most of these programs there. As you go up though the levels there is an...
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    Horrible news from Vans Aircraft

    Some of those customers can recoup. if the holes are round enough to use Clecos in the Lazer drilled holes Then upsize the open holes with the next size hole, i.e., 1/8th to 5/32" This may not work in all cases, but it may take away the heat affected zone in most of them.
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    Pros and Cons on Composites vs Aluminum

    According to the FAA a composite aircraft is a machine made of several materials i.e. wooden wing, steel tube fuselage, Sheetmetal cowling etc. The term most FAA inspectors use now for fiberglass molded also Carbon fiber or Kevlar aircraft is Advanced Composites.
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    Winches, Motorgliders, and Soaring, Oh My!

    Current asking price is about $30,000.
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    Experimental Soaring Association 2023 Western Workshop

    I am sorry I will not be able to attend this year due to health problems Brian Evans.
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    PVC protective sheet on aluminum

    I had the same problem about a year ago, the film had been exposed to sunlight. I gave up and went and got a new piece of metal.
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    A/C Air Conditioning

    There is a company called aspen compressor co which builds miniature 12-volt compressors, they also make 24-volt units. To use these, you would have to have some air-conditioning knowledge. but it has been done in the past. https://coolingstyle.com/the-smallest-refrigeration-compressor/
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    Lighweight opposite 2-stroke engines

    So, this is a barrel engine like the dyna cam, Due to scuffing of the piston walls dyna cam were forced to place a small roller bearing in the side of the piston to prevent this. Also, most barrel engines have achieved peak power at relatively low RPM which may be good for aircraft power.
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    Parts Wanted Wanted - Le Pelican Manual

    I watched a Pelican being built in the 1980s. On that version the spar was several nested c shaped channels bent from flat stock with the outer channel being about 0.050 running full span then the next one fitted inside that one running about 3/4 span then subsequent shorter and thicker ones...
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    Design at new version of the Fournier Motor Glider

    There can be a booby trap associated with this method If you follow a hawk and are slightly below him/her, stay well back, if you sneak up on the bird, the moment you get spotted the bird will express an opinion of you about a yard long, and split S headed for the ground. Ask me how I know about...
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    Carbon fiber skin

    Razorback is a fine woven fiberglass fabric it does not shrink; it is applied as tightly as possible and glued on with fabric cement. Then nitrate dope is applied, the nitrate dope shrinks causing the razorback to pucker between the threads. Successive coats are applied until the fabric has...
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    UL Aeronca C-2

    There was /is a Canadian ultralight called Le Pelican. They used to supply a kit for this, however now I understand all you can get now are the drawings. LE PELICAN PART103 ULTRALIGHT – PLANS AND INFORMATION SET FOR HOMEBUILD AIRCRAFT – SIMPLE AND CHEAP 1 SEAT TUBE-FABRIC |...
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    Design at new version of the Fournier Motor Glider

    If anybody is interested, I have a nose cone for the RF5B to fit the Limbach (VW clone) reply on here if you are.
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    Metric aircraft bolt specifications

    You have to ask for certs when you order them any reputable aircraft supply house will do that.
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    Exploring the Potentials of Water Injection to Improve Fuel Consumption and Torque in a Small Displacement Pfi Spark-Ignition Engine

    I thought that the addition of water spray was to reduce detonation (Pinging) nothing more.
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    Lets talk about wood

    Another method is to use a high peel strength epoxy used for bonding aluminum to itself. The place with the best price I have found is R s Hughes. This epoxy can also be used on wood and other materials. Qty Ordered Unit of Measure RS Hughes ID / Custom PN SDS Certs Taxable Price Sub-...
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    1983 Le Pelican

    I flew one of these several years ago, there was a placard on the panel that said, "WHEEL LAND ONLY, DO NOT ATTEMPT TO 3 POINT!". So, after a few wheel landings I tried a 3 pointer, that thing turned into a bucking bronco going from tail to mains and back again. I had to open throttle and take...
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