I did a 4" (244%) and I used 1/8" G10 for the fins. I think 1/4" ply wood would be heavy for that size but it's up to you. Because of how big the fins are on that rocket, you can put alot of weight in the rear and still have a stable rocket. I used the G10 beause I wanted to try it out and I was tired or filling the grains on wood. When you get ready for the stickers, I recommend "Stickershock" good luck and I hope that helps.
Why not 1/8" aircraft ply?
1/4" balsa would work well for this application if you want to maintain the scale. For a little more robustness, you always have the option of adding some light fiberglass, though it really isn't necessary.
Use Estes style tubing (Big Daddy size) and you could keep it light enough to still fly on E's and F's. Just remember, balsa is a lot stronger than people give it credit for.
1/4" balsa would work well for this application if you want to maintain the scale. For a little more robustness, you always have the option of adding some light fiberglass, though it really isn't necessary.
Use Estes style tubing (Big Daddy size) and you could keep it light enough to still fly on E's and F's. Just remember, balsa is a lot stronger than people give it credit for.
I was going to build it with a 2x24mm cluster.
1/4 balsa would most certainly be sufficient then, probably even on two E30's. I would also stick to the Estes-style tubing to keep the overall weight down. BMS sells some 34" stock in the lightweight 3" size.
1/4 balsa would most certainly be sufficient then, probably even on two E30's. I would also stick to the Estes-style tubing to keep the overall weight down. BMS sells some 34" stock in the lightweight 3" size.
I plan on using scale thickness when I build my 8x Mosquito.
The way I am going to do it is by laminating the fins, I suggest you do the same if you would like to keep your red max light.
Cut the main fin shape out of 1/8 inch ply wood, use through the wall tabs. Then cut holes in the center of the fin to lighten it. ( This may not be necessary for somewhat smaller fins on your red max, but for a giant mosquito it is necessary.)Then take two pieces of hard 1/16 inch balsa and cut out the fin shape, and put one on each side of the 1/8 inch ply, covering up the holes (if you have any.)
This way it should have *light* scale thickness fins. I also plan on using some BT-60 tubing for a scale launch lug.
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