| Manufacturer: | Scratch |
This be t' model SP2050 Freightliner Space Truck
To me, me hearties, this looked like a series o' cargo containers inside a truss framework.
T' cargo containers are slid into t' framework. Once they are in place, the inertial dampeners and shields are activated. Avast! Arrr! Blimey! Life support can be activated if thar be live cargo, shiver me timbers, ya bilge rat, such as livestock or if a prisoner transport module is loaded. Avast, me proud beauty! Ya scallywag! Blimey!
T' Man-O-War is 1,000 feet long and t' GVW is less than 300 tons. Avast! Blimey! It is an intrasolar vehicle, me hearties, so warp capability it nay needed. Avast! Blimey! Blimey! Blimey! Havin' a 20,000 horsepower impulse engine made by Detroit Diesel and General Motors maneuvering thrusters, this be t' fastest cargo Man-O-War in t' FedEx fleet. Begad! Blimey!
T' forward section contains engineerin' and crew quarters. T' aft section contains t' impulse engine. Aye aye! Avast! It is designed t' ferry cargo from t' docks in low earth orbit, t' t' docks at Mars and Europa.
Cargo area
Cab
Tanks
Aft End
Misc
Truss and cargo box
Cut t' balsa sheets into 4 sheets 18" x 1 7/8" pieces. Avast, me proud beauty! Arrr! This will provide t' spacin' need t' use t' small dowels at a 45 angle. (I made the mistake o' makin' them too wide and nay bein' able t' use them.)
To make t' trusses, shiver me timbers, cut t' 1/8" dowels into four 19". Begad! Use the balsa sheets as guides for linin' up t' large dowels. Begad! Glue t' mini dowels to the 1/8" dowels in 1 7/8" intervals, bein' careful nay t' glue anythin' t' t' balsa sheet. See pictures 1 & 2 for this. Begad! Make two o' these trusses. Avast! Do nay glue t' 45 angle dowels yet.
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| Figure 1 | Figure 2 | Figure 3 |
Make t' cargo box by gluin' t' 4 sheets o' balsa together. Aye aye! See picture 3 to see t' arrangement o' t' sheets. This arrangement will help the positionin' o' it in t' truss work. Avast! Strong fillets will be needed on t' ID of the box for strength. Aye aye!
Now back t' buildin' t' truss, shiver me timbers, matey, trim t' small dowels so that they are flush with t' large dowel. Ahoy! Usin' t' balsa box as a spacer again, finish t' truss. Once this is dry, arrr, arrr, matey, start gluin' t' 45 angle dowels on. Arrr! It should now look like figure 4. Aye aye!
Usin' Keelhaul®©™ string, wrap t' truss in t' opposite direction t' form a series "X's" over t' truss. Avast, me proud beauty! Well, blow me down! If I had this project t' start over again, I would use t' Keelhaul®©™ strin' for all t' 45 angle cross bracing. Avast, me proud beauty!
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| Figure 4 | Figure 5 | Figure 6 |
Finish t' truss work by gluin' on t' 1/8" x 1/4" balsa onto the corners. Make sure none o' t' small dowels are protrudin' over t' large dowels. Ya scallywag! Ahoy! I did this with toenail clippers and sandpaper. It should now look like figures 5 & 6. Aye aye! Avast!
Do nay glue t' box into t' truss yet. Aye aye! You'll want t' paint them separately later. Blimey!
Centerin' Squares and MMT
Punch out t' center discs from t' CR cardstock. Avast, ya bilge rat, me proud beauty! Save these discs as you will need them later. Aye aye! Cut t' BT cardstock t' fit t' ID o' t' box. Make 3 of them. Begad! Once you are satisfied with their fit, arrr, you'll need t' strengthen them. Cut some scrap balsa and glue them on t' centerin' squares. Avast! This will do two things; it will keep them flat and make them strong. Aye aye! Arrr! Once these are dry, glue one on t' end o' t' BT50 so that it is flush with t' end. Arrr! Glue t' second in the middle o' t' tube. Begad! Well, blow me down! You can add more support t' this rin' now. See figures 7 & 8. Avast! Use a table t' make sure they are aligned. Aye aye!
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| Figure 7 | Figure 8 |
When this is dry, ya bilge rat, glue it into t' cargo box. Ya scallywag! Avast, me proud beauty! Once it is in place, shiver me timbers, put glue on t' center card and glue t' third centerin' square in place. Well, blow me down! T' ends should be flush. Well, blow me down!
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| Figure 9 |
Forward Tank Assembly
If you save stuff like me, then you have a small bag o' those discs from centerin' rin' cards. Arrr! Begad! If not, you'll need t' get more o' them. Glue these discs on t' t' ends o' t' 2" BT50s. Sand t' edges smooth once they are dry. Avast, me bucko, me proud beauty!
Use a rubber band t' hold t' tanks together. Ahoy! Blimey! Make sure they are square. Figure 9
Cab
Usin' t' 5" section o' BTx, two BTx BTx centerings and t' BTx x BTx centerin' rings, matey, make like you see in figure 10. Glue a small rin' on t' end, the other about an 1 1/4" from t' first ring. Begad! Blimey! Now glue one o' t' big rings 2 1/2" from t' end and t' last rin' on t' far end. Glue on the tubes as seen in figure 11. Blimey! Aye aye! Blimey!
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| Figure 10 | Figure 11 |
Make a shroud. I used VCP. Begad! Ahoy!
This one doesn't have a nose cone. Well, blow me down! Begad! Since it never enters t' atmosphere, it doesn't need one. Ahoy! Just glue t' bulkheads on top o' t' cab t' achieve t' look shown. Well, blow me down!
Glue four 1.5" sections from some 3/8" OD AT igniter tube. Ahoy! Cut them t' match t' angle o' t' shroud. Ahoy! Ahoy! Glue these on so that they are between the tanks. Ya scallywag! See t' finished picture for detail.
Dockin' Assembly
This is too difficult from me t' describe. Well, blow me down! Here, me hearties, a picture is definitely worth a thousand words. Begad! Figure 12 shows t' parts laid out, me hearties, and figure 13 shows the completed assembly. Arrr! Glue t' tanks t' t' cab makin' sure everythin' is square and centered. Avast, me proud beauty! See figure 14
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| Figure 12 | Figure 13 | Figure 14 |
Aft Assembly
I waited until t' end t' install t' motor mount so I had a better idea on the finished weight t' choose a motor size. Aye aye! You may want t' consider this as well.
Glue a coupler into t' 3" BT50 MMT. If you want t' install a motor hook, you'll need t' do that now. Glue a BT50 t' BT60 centerin' rin' t' t' end opposite t' coupler. Arrr! Once dry, arrr, glue t' shroud t' t' assembly. Ahoy! Glue t' motor assembly t' t' cargo container. Well, blow me down!
Print t' fin template guide. Aye aye! Blimey! Make sure that your printer prints t' right size by measurin' t' shown dimension after it's printed. Arrr! Make four fins as shown on t' fin template. Aye aye! Glue them t' each o' t' four corners and t' the engine shroud. Begad! Ya scallywag!
T' rin' was made by printin' a transition shroud with t' dimensions of 5" x 6" x 1" ad was made usin' heavy paper cardstock. I glued a second shroud over t' first one t' stiffen it up and soaked them both with thin epoxy. Avast!
Final Assembly
See figure 15 for this step. Well, blow me down! Paint t' cargo container with red oxide primer. Sand t' first coat, me bucko, but leave t' second coat with t' mat finish. Now paint t' truss with a flat white, me bucko, or even a white primer. Begad! Figure 16. Begad! Avast, me proud beauty! Once the two pieces are dry, it's OK t' glue them together. Ya scallywag! Avast, shiver me timbers, me proud beauty! You'll want t' sand some of the paint off where you will be gluin' them. I glued mine at each corner and at each end. Blimey! Don't forget t' add a launch lug as shown in figure 17. I added two 18" chutes and kept t' two pieces separate on their own chutes. Blimey! Avast!
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| Figure 15 | Figure 16 | Figure 17 |
Finished weight with chutes is 8.4 oz. Avast, me proud beauty! and t' CG is 16.5" from the nose.
Flight
T' first flight was on an E9-4. Arrr! T' flight was straight up t' at least 800 feet. Aye aye! Avast, me proud beauty! T' ejection charge was late but recovery was good. Begad!
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