Nice!Much faster to CNC parts out of 2mm plywood than to 3D print parts. This is my first time making a multi-part-component with CNC'd parts. I think that they two wedge fins came out pretty good.
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I have to agree Nice. Glad to see things are coming along.Nice!
Are you going to fill them with foam or anything?Much faster to CNC parts out of 2mm plywood than to 3D print parts. This is my first time making a multi-part-component with CNC'd parts. I think that they two wedge fins came out pretty good.
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I was not planning on it -- I left some little tabs on the side pods so hope that lets me attach them more strongly to the body.Are you going to fill them with foam or anything?
Looks good. Looks nice. Looks great. Can't wait to be able to print these parts for my own X-15 but I would like to downsize it a bit to a BT-70 tube.
What are you going to do about the aft end of the cockpit? Will it be attached to the NC or the BT?
Really look good. It looks like everything fits nice and snugs.
What's the weight so far?
I'll problem catch some flak for saying this, but I like the way yours look better than Apogees.
That looks nice, properly proportioned and you avoided all the issues I normally have with rocket only X-15's, very nice.
DittoLooks great! Definitely interested in these 3D files if you sell them.
Really look good. It looks like everything fits nice and snugs.
What's the weight so far?
I'll problem catch some flak for saying this, but I like the way yours look better than Apogees.
The twin motors hurt, they weigh about an ounce and a quarter to an ounce and a half, if you went with a single composite e motor it would weigh the same as a single motor with double the impulse and you would dump an ounce and a half in the nose and an ounce and a half in the tail so a 3 oz saving.Thanks Frank - big compliment given your expertise with this model! This 3D printed version needs quite a bit of nose weight to fly with the full sized wings, etc... - around 3-4oz. Here is fully updated OR sim.
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Thanks. What type of composite engine do you recommend that is in the D-E range for this weight rocket?The twin motors hurt, they weigh about an ounce and a quarter to an ounce and a half, if you went with a single composite e motor it would weigh the same as a single motor with double the impulse and you would dump an ounce and a half in the nose and an ounce and a half in the tail so a 3 oz saving.
I would think an e20 single-use would be good with the right delay for your final weight or e18 reloads there are some two pack econo jet or energet motors now that should probably work as well.Thanks. What type of composite engine do you recommend that is in the D-E range for this weight rocket?
Thanks. In the current design I can use a single 24x90mm motor or a pair of 24x70mm motors. I could also use longer 24mm single engines but would need to consider the engine block / retainer setup. I might try less nose weight and a E12-4 although the speed off the rod is only around 12.5-13 m/s which is a bit slow.I like the cluster and am not averse to nose weight, but it would be cool to leverage your modularity skills and have both mounts be available.
E12 doesn't have much more initial thrust than the D12. It also weighs more, so in my experience you get worse rod speed than with a D12.Thanks. In the current design I can use a single 24x90mm motor or a pair of 24x70mm motors. I could also use longer 24mm single engines but would need to consider the engine block / retainer setup. I might try less nose weight and a E12-4 although the speed off the rod is only around 12.5-13 m/s which is a bit slow.
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