English Electric Thunderbird SAM Model Rocket STL Files

Description

This listing is for the STL files for 3D printing and building a semi-scale model of the English Electric Thunderbird Surface to Air Missile (SAM). STL files include designs for 3D printed parts as well as fin templates. In addition to printing parts and cutting fins from balsa or basswood, you will need body tubes, shock chord, parachute, and 18mm engine if you want to launch this (just need the body tubes if you want a static model). Pictures included are of my built model as an example of what the finished product can look like and one picture shows many of the parts that are included in the STL files.
Model flies great on a single C6-3 or C5-3 engine (boosters are dummies). Model is 17.5" tall and around 138 grams when fully built / primed. It is very impressive / unique and gets tons of compliments in forums and real life. You can see a video of it launching here (sorry it is short):
https://youtu.be/9oMpUD6mRCY
I made / built lots of versions to get to this fine-tuned design. Boat tail includes built in quarter-turn locking engine retainer, large side booster fins mount through booster tubes into slots in 3D design to make them stronger, small rear fins mount through boat tail, holes included inside boat tail to mount shock chord via 2x redundant Kevlar lines tied around engine mount (or you can go traditional route and attach your shock chord to body tube).
Uses stock cardboard body tubes to keep weight down: 1x BT 55 Center Tube + 4x BT20 Tubes (boosters) -- booster tubes should be 9" long and main body tube should be 9.5" long. Build is quite easy due to the brackets I designed to line up the 5 tubes needed.
Files include options for printing beveled or unbeveled T-fin booster fin tips as well as options for using 1.5 mm fins (I use 1.5mm basswood), 2mm, or 2 + 2.5 mm fins (2.5mm for large fins, 2mm for smaller) - variations change slots in boat tail, T-fins, and bottom bracket that attaches 5 tubes together.
Shock chord mount piece for nose cone is separate so you can add weight to nose cone (I did not add any weight but you may want to depending on your flight conditions and wood used for fins).
This purchase is for STL files and build instructions only, not a built model rocket or 3D printed parts. Buyer is purchasing rights to use STL files for personal use and does not gain permission to resell files, to sell built models, or to remix / modify designs and redistribute. You will receive a link to download the files once your order is placed.