Beechcraft Sierra


Happy New Year! This Beechcraft Sierra is the first DAM digital model published on the website in 2012. I actually did most of the work in late December, but with the holidays demanding so much time, I couldn’t finish it until now. 2011 was an eventful year for us with the initial release of Digital Aircraft Modeler in June followed by an upgrade in October. As if this was not enough, we also created an initial group of models for everyone to download. Don’t be mislead into thinking we were working. All of this is our idea of fun :)

The Sierra is an iconic personal airplane that was an evolutionary step in the development of the Musketeer. It appeared in 1970, and was the first of the Musketeers to feature a retractable landing gear. This helped it take full advantage of the 200 hp Lycoming engine.

The aircraft has a lot of devotees and there is plenty of material to read about it on the web. You can Google it easy enough so I won’t repeat any of it here. One thing that I found particularly interesting was that the type of landing gear used required a bit more practice to achieve a smooth landing than other aircraft brands in the same class.

The digital model as published is pleasantly aerobatic. I hope you enjoy flying it. We also took some time to add a rough interior just so the cockpit has a nice look when the model rolls by you on takeoff and landings. I added nav lights and strobe lights too. I’m not quite sure I have them right. If anyone can tell us if I have the colors in the right locations, or what the timing on the strobes should be, let us know.

Good digital modeling!
Greg
Sunday Flyer Software, LLC

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5 Responses to Beechcraft Sierra

  1. Jerry Adkins says:

    I have been learning DAM. For some reason now, I get a broken line when I use the curve tool. I’m trying to create a wing.

    Jerry

    • Administrator says:

      The curve tool has defaults you can set. While the sketch is active, select a curve (turn on the “Poly” so the entire curve is selected). With the curve selected, use the dropdown arrow on the curve tool and select “Edit”. The window that opens has two areas. The top area controls how smoothly the curve appears on screen. The bottom area controls how smoothly the curve is converted for extrusions, etc. I’m assuming by “broken line” you mean the curve looks rough on the screen, so play with the controls in the top section. Try turning on the “Relative” and setting the “Max Segments” to 10. Hit “OK” and see the curve looks rough. Now change the “Max Segments to 50 and hit OK. You will see the curve looks much smoother.

      Note in the dropdown menu the second option is “Convert”. This converts the curve to a multi-sided polygon. You have a bit more control over this operation, but the principle is the same. While you are here, go ahead and convert the curve to a polygon. Select the polygon and drag it away a little distance. Change the conversion variables and convert a few more times to get a feel for how the curve is converted.

      Hope that answers your question, Jerry. Thanks for choosing DAM and Good Digital Modeling!

      • Jerry Adkins says:

        If I could attach an image, it would explain it better. The rib polygon actually has missing segments. When I try to round it out to be an airfoil, it behaves as if the polygon segments are just a series of lines that act independently of the others. That’s the best way I can explain it.

  2. Jerry Adkins says:

    Thanks. I sent another note about this. I didn’t know someone had answered. How do I restore things to default? I created a wing before with no problems, now, the curve tool won’t create a wing rib. It creates several independent objects instead. I didn’t change any settings, so I don’t know what’s wrong. I followed a YouTube tutorial before to create a rib using the curve tool, now, following the same tutorial doesn’t work.

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