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#primer

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tobadzistsini

Jess swung her bare feet over the edge of the bed and opened the pdf despite all common sense.
"A #PRIMER" was the first page.
Ensuing pages were spartan but engaging. A cartoon pangolin was the only aesthetic contribution encouraging a reader to continue.
First there was a dictionary showing English words juxtaposed with... jibberish. Simple jibberish. Yet the little mascot made it kind of fun.
Her phone rang.
She saw the caller. "Gertie! That's her name!" She tossed her hair, "Hi~" 2/x
#wss366

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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

I'm building a sailplane (glider). I live in New Mexico. Weather conditions are often outstanding for this sport.

What if I lived near large bodies of water?

Maybe I would make a sailboat that flies on foils?

Good engineering, testing, learning in this video:
youtube.com/watch?v=l-W4p73Qec

#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #Painting #Primer
#Metal #Aluminum #Sandpaper #DIY
#Sailboat #Sail #Foil #AmericasCup

YouTubeBuilding a FLYING BOAT: Foiling LASER design and ENIGINEERINGBy Edoardo Chisalè
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

Decorative metal work on glider access/inspection port covers.

I have seven inspection ports in the glider - three on each wing, and one at the bottom of the vertical fin. They are made of hard/high strength aluminum, which machines beautifully without galling.

I made a flat face rotary tool, with spongy backing, that holds a piece of sticky back sandpaper.

I'm experimenting (on the inner/hidden face) with 400 grit and liberal application of water as the tool spins in the drill press at lowest RPM.

I'll probably decorate the outer surfaces with a random pattern of swirly circles and leave the aluminum unpainted.

#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #Painting #Primer
#Metal #Aluminum #Sandpaper #DIY

Decorative metal work on glider access/inspection port covers. A gray oval plate of bare aluminum has three swirly circle patterns that were made from a spinning tool whose face was covered with sandpaper. The sandpaper tool is in the lower left of the photo. It's a simple way to decorate unpainted metal.
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

The horizontal stabilizer gets micro added along the leading edge.

I may need a second application tomorrow.

According to my airfoil templates, the leading edge is a little bit blunt, so I need to build it up a little bit and then sand it to the proper shape.

Of course, this delays my priming and painting dates by a few days or more.

If an airfoil is blunter than the design calls for, it has a bit higher drag. (However, the stall characteristics tend to be gentler, more forgiving.)

Ironically, most composite glider designs have the airfoils made from two mold halves...and the mold seam runs right along the leading edge...the most critical part of the airfoil.

So, you should expect to always add micro to the leading edge along that @#$%! seam, and sand/shape it. Sigh.

It's the nature of the beast.

#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#mold
#Glider #Painting #Primer

The horizontal stabilizer sits on the gray garage floor, leading edge pointing up. Blue painters tape delineates a narrow section up along the leading edge. The leading edge is covered with micro (mixture of epoxy resin and glass microspheres). Tomorrow I will sand this rough mess smooth and evaluate if I need to add more micro to get to my desired shape.
An airfoil template for the horizontal stabilizer's leading edge. My leading edge is too blunt, so I'm correcting it by adding micro.
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TomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️

@caseyhansen

Besides individuals, don't forget to follow hashtags.

#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #Painting #Primer
...etc.

universeodon.com/@KrajciTom/11

Universeodon Social MediaTomKrajci 🇺🇦 🏳️‍🌈 🏳️‍⚧️ (@KrajciTom@universeodon.com)Attached: 3 images Filling surface finish holes with "micro". ("Micro" is epoxy resin with glass microspheres added. It's a low density filler that is easy to sand. It's like Bondo, and it's not a structural material.) The tail boom is a long skinny cone...a ruled surface. https://en.wikipedia.org/wiki/Ruled_surface On a ruled surface I can use a flat board for sanding and conform closely to the part I'm working on. A 'shield' of thin sheet metal (aluminum roof flashing, 0.010 inch thick.) keeps me from sanding the wrong places. Eventually I can transition to finer sandpaper and use blue painter's tape to finish the smoothing job. #avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt #Glider #Painting #Primer
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Bobbing Boat

There's rust around the throttle, blistering the paint.

In fact, there's rust around every cut made in the steel after the original primer went on … because those cuts weren't primed. They're all hidden by plastic covers or brass grills.

Everywhere the steel was cut must be accessed, rust removed, and then treated, primed, and repainted.

Q: Would I recommend the firm that fitted out this boat?

Close-up photo of the boat's throttle with the handle and covering plate removed. The throttle is set into a square hole in the steel, which has rusted on the left, right, and top. In the middle of the throttle os a red button. Pressing the red button take the engine out of gear, so we can rev the engine (to generate electric power) without moving the propeller.
#CanalLife#canal#boat
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