Here are several images of the model complete with custom decals. I have not had the chance to have a first launch yet due to our changing weather.[/IMG]

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That looks fantastic. What inspired the project?

I got the drawing and material list from this forum under concept models.
Having a background in aeronautics and physics of flying I contoured the fuselage since because I use rubberbands to hold the half tubes (Air intakes) and they were tighter than needed. Even though, it turned out, it should increase the flight characteristics of the model.
Also, I choose to make it a NASA model, since I have a mutual friend of one of my friends that is retired from NASA and is an Aeronomical Engineer. He was my encouragement to go the NASA Route.
David Manning

From the FWIW category, that design came about during the early days of BARCLONE designs (before I started using RockSim!), and it was somewhat inspired by a Shrox plan I had seen on the Apogee website. I had not yet switched to using Centuri-sized components...

If I were to revisit that design, I think I'd be using ST-10 for the main body, and ST-5 or ST-6 for the intakes and conformal nacelles. The slightly larger diameter has a better feel to it.

Really nice to see someone working up one of those older designs. Your decals look great, Dave. Let us know how she flies. Sometime back, I think I plugged the design into RockSim to see if everything was "in its proper place" as far as CG/CP and deployment velocity was concerned (I prefer very low numbers here...). I think it was within safe margins.

Flight photos, if you can swing them!

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SAM 0044
AMA 352635

The model was a fun build, but I did change a few things:
1 The .020 Styrene plastic that was suggested in the drawings for the air intakes , kept breaking down the center. After making several sets of the parts, I decided to try something else. I ended up cutting a #BT20 Body tube in half and transferring the cowling pattern to it. It worked much better.
2. When I glued the BT20 halves to the side of the main tube, I used rubber bands to hold them in place. When I came back to the model to continue working on it, I discovered that the force of the rubber bands had pulled the center in creating a concave shape. See attached image of build.

Have a background in aeronautical technology and having been a modeler for many years,, I decided to leave it be and see how it would affect the flight. I am almost 65 this month. [IMG]

David
SAM # 0455

Cool... how to do a "wasp waist" design without really trying... (or meaning to... LOL)

Later! OL JR

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