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  1. Eugene

    Private landing strip question

    Hello everyone. Not sure if this is correct place to ask this question or not. I am including picture with my house on 7 acres and opportunity to create 850 feet of grass strip for my 100HP LSA. Would like to hear if this looks doable. If so, would like to connect with people who have done it...
  2. Eugene

    Aircraft inspection doors variety

    I would like to educate myself on different kinds of openable inspection doors that we have out there. Picture below it's what I had on my airplane installed from the factory. How do we call this kind of system and this kind of locks? To me they did very good job. But what do I know. I see...
  3. Eugene

    2nd vacuum bagging attempt question

    While I was working this morning, on my second attempt to make good part, I developed another question that really needs to be answered. As it turns out, I had leak on my mold at location "A". I spend a few nights to find it, but in the process of looking for it was fighting with all kinds of...
  4. Eugene

    First vacuum bagging attempt question

    First attempt = first result, and first question. Overall, I think this was a success story and I will use final part because it's really nonstructural and no risk really. However, I would like to understand the phenomenon that occurred in the process. I will include some pictures. Seems like...
  5. Eugene

    Upgrading LSA brake lines

    At this point nose of my aircraft completely cut off. This aloud me to take a close look at my break situation. This is already upgrade from original set up and you see two master cylinders from Matco with plastic brake lines. This system is using transmission oil as brake fluid. I really don't...
  6. Eugene

    Front wheel shock conversion

    I have absolutely no complaints about main landing gear during landing. Every landing is soft landing. But front wheel is very hard because there is absolutely no shock absorption. Only a few rubber discs that not doing much at all. In the past, I made few attempts to add spring, but without...
  7. Eugene

    Shock, absorbers calculations

    Hello everyone. Looks like I need help again from someone much smarter than I am. I am including pictures for landing gear on my Skyboy. 30 years ago back in Czech Republic they decided to use motorcycle shock absorbers from Java 593. This is a relatively light Enduro bike with 250 cc engine and...
  8. Eugene

    How to connect new part to existing composite frame?

    I am working on new and improved adjustable fresh air (cabin air) intake. In order to make room for it, I am building a new nose for my airplane. Mold is already finished and you can see it on my pictures. What I don't know is how you're supposed to connect new part with old structure. I made...
  9. Eugene

    HVLP automotive painting for composites

    I was watching someone to use HVLP for small parts painting right inside of hanger. Surprisingly very little dust. Definitely hundred times better than what we did before. But he was using regular automotive paint for metal parts. I would like to know what kind of paint from automotive market we...
  10. Eugene

    Fuel level sending unit question

    Here is a message from GRT. - “ As long as your fuel level sending unit 0 - 5 Volt. It will work perfectly with electronic engine monitor or can be directly plugged in into EFIS.” But there is so many different kinds out there!? Which one is preferable in 21st-century going forward...
  11. Eugene

    Is there flight simulator for apple device?

    Not sure if this is the correct place to ask this question. Sorry. I have 12 years old nephew with iPad and MacBook at home. I would like to purchase flight simulator for him as a birthday present. 20 years ago we got floor pedals, and table yoke at Oshkosh for $200 with necessary program for...
  12. Eugene

    Appropriate color for instrument panel

    I see many airplanes with relatively bright, shiny colors on instrument panel. Wondering if this is such a good idea or not. Wouldn't that be very hard on your eyes? There must be a reason why they choose black plastic for all instruments and not bright orange! What is preferable color and...
  13. Eugene

    Instrument panel position

    I would like to know if we supposed to install our instruments exactly perpendicular to our eyesight. Or maybe a little bit down to avoid reflection. I believe I asked this question sometime ago, but completely forgot recommendation. Sorry.
  14. Eugene

    Sikaflex 221 vs 252?

    Finally figured the way to make bubble windows for my Skyboy. Will post some pictures. Maybe this will be useful for somebody. Looks very cool and hundred times stronger. Original 1.5 mm flat lexan was flexing in flight. I used 2 mm acrylic for this project. I need to know correct adhesive to...
  15. Eugene

    Seven piece engine cowling mold

    Here is some pictures of what I did so far. Just checking to see if my thinking, correct. I am planning to break the plug itself to make sure that mold fits nicely around the wings and cabin. Whatever I don't like I can use simply body filler to fix the mold from inside. I think... I only have...
  16. Eugene

    Mold building advice needed

    I need someone with more experience to tell me what to do again. I need to know how mold supposed to look like at the spinner. Should I build vertical plywood wall, like I did upfront? Or should I continue level, almost like going into the spinner? Can this be done both ways? What is the pros...
  17. Eugene

    Alternative to spray paint?

    Here is question for experienced guys. I used spray paint to finish up my plug for engine cowling. Really, really didn't like it for a number of reasons. This project is simply too large for spray cans. Almost like trying paint small car this way! Every can is giving me different spray...
  18. Eugene

    Correct sending technique

    I am looking for advice from experience builders. My plug for engine cowling was made out of drywall compound. Looks like I didn't do very good job of creating smooth surface. After started sending hard surface primer I discovered that there is all kinds of high and low spots. I know when...
  19. Eugene

    Skyboy on floats. Good idea or not?

    I was talking to someone another day who planning to put Skyboy on floats. For those who doesn't remember me, this airplane is side-by-side pusher with drastically undersized horizontal tail Vh=0.33. I will include picture to this message as a reminder. We would like to know how this Aircraft...
  20. Eugene

    Can we have long tail arm on pushers

    Smart people who disagree with what I am doing with my airplane insisting that long tail arms and pusher arrangement don't mix. Apparently props is blowing strong pulsating shock waives on horizontal and vertical tails working in pretty rough environment. And longer you making your tail arm =...
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