I have been watching your videos for years. I would like to thank you for what you put out into the world. Not only do I enjoy the content, but I've been inspired and built a water rocket or two. The best part however, is seeing how you and your dad work together. The smile on his face at the end there was heartfelt.
Hi George, Wow! What a project! So nice to see you are still building insane waterrockets! It has been 13 years since we've launchend our last waterrocket..... maybe in the near future we will build one again. Keep up the great work and I will def follow this project. Gr Daan
Wow, Hi Daan, good to hear from you, it has been quite a few years! Ha ha yup we are still here making water rockets. It would be good to see you back in the hobby. :)
Thanks. :) We'll still try to do updates before launch but they may be a little shorter. Editing the videos always takes up valuable construction time.
I estimate that at current rate of progress, you guys will be ready for a lunar launch in about the year 2524. I've been following this series since the start - can't wait to see this fly!
@@AirCommandRockets you can't rush perfection (or crazy high pressure tanks!)
Месяц назад+1
Nice work in progress video! Always great to see you guys working so nicely together. It's a real inspiration and pays off the time that removes from construction. Thanks for sharing and looking forward to seeing more. Ah, one question: the resing you use for constructing with carbon fiber sheets and glass fiber: is it Ok for brething it? The same for when cutting the carbon fiber. I though they are nasty/dangerous things... All the best!
Thanks! :) The resin/epoxy we use is fine to breathe though ventilation is still a good idea, it's actually very low odor, and not as bad as polyester resin. We always wear a respirator when cutting or sanding fiberglass/carbon fiber. You definitely don't want to be breathing in the fine particles.
Nicely done! Appreciate the effort to make sure everyone watching knows the health hazards of working with fiberglass, epoxy and carbon Fiber. We find it interesting how much work goes into building strong bonds between the tanks. How much force at launch is there on these bonds?
Thanks, yes definitely need to watch out when making small fibers airborne. I now usually wear gloves too during sanding or cutting as I get fibers between my fingers and then they itch for a day or two. The loads on these brackets are huge, one of the reasons we are using CF for these is for their stiffness. The central bracket that holds down the rocket and supports the sustainer during acceleration will have about 7000N pulling on it trying to rip it apart. During staging there will be a 1000psi 15mm wide water jet trying to cut the bracket away from the booster. The lower brackets need to hold while the booster slams into the ground fin first applying a point load right in that region where the bracket is. The top bracket will need to stop the booster splaying apart during acceleration. The sustainer is going to be pushing sideways onto this top bracket if the rocket has any kind of Angle of Attack (it will). I'll be surprised if the booster doesn't rip itself apart on the launch pad or during staging. :)
We normally buy it from HobbyKing hobbyking.com/en_us/catalogsearch/result/?q=carbon%20fiber%20plate. They have a pretty good range. I just recently needed another plate but they were out of stock of the size I wanted so I bought it off Amazon for a similar price. www.amazon.com.au/gp/product/B0B4PC57KD/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&th=1 Yup pulling the fiber out is an easy way to mark a line that's aligned with the fibers in the cloth as opposed to just drawing a line and then cutting across some fibers. The cloth isn't always perfectly rolled onto the cardboard tube and sometimes the fibers curve around. This way you can easily follow the curve with the cutter.
We do use peel ply sometimes, but we've found that the surface texture it produces is quite rough and needs a lot more sanding. We use the lightweight fiberglass cloth instead that produces a much smoother finish. It also acts as a sacrificial layer that we can sand without cutting into the carbon fibers below.
@@AirCommandRockets cheers george! I found the same, but then i watch all the rocket builders and everyone swears by it!. Hopefully ill get up to nsw again later this year!
It's just high density foam that we got in some packaging. I can't remember what was shipped in the box. It's the sort of foam that computers or microwaves are often packed in for transport.
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I have been watching your videos for years. I would like to thank you for what you put out into the world. Not only do I enjoy the content, but I've been inspired and built a water rocket or two. The best part however, is seeing how you and your dad work together. The smile on his face at the end there was heartfelt.
Thank you for following along. It's definitely been a lot of fun getting the whole family involved.
Hi George,
Wow! What a project! So nice to see you are still building insane waterrockets!
It has been 13 years since we've launchend our last waterrocket..... maybe in the near future we will build one again. Keep up the great work and I will def follow this project. Gr Daan
Wow, Hi Daan, good to hear from you, it has been quite a few years! Ha ha yup we are still here making water rockets. It would be good to see you back in the hobby. :)
Always a joy seeing the craftsmanship, skill and knowledge that goes into making these! If we don't see you again before the launch, good luck! :D
Thanks. :) We'll still try to do updates before launch but they may be a little shorter. Editing the videos always takes up valuable construction time.
Thanks for your hard work !
Looking fine!
The discipline you put in your process is astonishing. Nice work !
Cheers!
I estimate that at current rate of progress, you guys will be ready for a lunar launch in about the year 2524. I've been following this series since the start - can't wait to see this fly!
2524? I know we've been a bit slow ... we better get cracking on that ... :)
Cant wait to see this lunch!
Me too :)
It's definitely starting to properly come together now! Can't wait to see the launch!
Haha, yup it's about time the pieces came together. :)
@@AirCommandRockets you can't rush perfection (or crazy high pressure tanks!)
Nice work in progress video! Always great to see you guys working so nicely together. It's a real inspiration and pays off the time that removes from construction. Thanks for sharing and looking forward to seeing more.
Ah, one question: the resing you use for constructing with carbon fiber sheets and glass fiber: is it Ok for brething it? The same for when cutting the carbon fiber. I though they are nasty/dangerous things... All the best!
Thanks! :) The resin/epoxy we use is fine to breathe though ventilation is still a good idea, it's actually very low odor, and not as bad as polyester resin. We always wear a respirator when cutting or sanding fiberglass/carbon fiber. You definitely don't want to be breathing in the fine particles.
Nicely done! Appreciate the effort to make sure everyone watching knows the health hazards of working with fiberglass, epoxy and carbon Fiber. We find it interesting how much work goes into building strong bonds between the tanks. How much force at launch is there on these bonds?
Thanks, yes definitely need to watch out when making small fibers airborne. I now usually wear gloves too during sanding or cutting as I get fibers between my fingers and then they itch for a day or two. The loads on these brackets are huge, one of the reasons we are using CF for these is for their stiffness. The central bracket that holds down the rocket and supports the sustainer during acceleration will have about 7000N pulling on it trying to rip it apart. During staging there will be a 1000psi 15mm wide water jet trying to cut the bracket away from the booster. The lower brackets need to hold while the booster slams into the ground fin first applying a point load right in that region where the bracket is. The top bracket will need to stop the booster splaying apart during acceleration. The sustainer is going to be pushing sideways onto this top bracket if the rocket has any kind of Angle of Attack (it will). I'll be surprised if the booster doesn't rip itself apart on the launch pad or during staging. :)
Great update! Where do you source your carbon plating from? Also liked the technique of pulling out a strip of carbon to align the cut
We normally buy it from HobbyKing hobbyking.com/en_us/catalogsearch/result/?q=carbon%20fiber%20plate. They have a pretty good range. I just recently needed another plate but they were out of stock of the size I wanted so I bought it off Amazon for a similar price. www.amazon.com.au/gp/product/B0B4PC57KD/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&th=1
Yup pulling the fiber out is an easy way to mark a line that's aligned with the fibers in the cloth as opposed to just drawing a line and then cutting across some fibers. The cloth isn't always perfectly rolled onto the cardboard tube and sometimes the fibers curve around. This way you can easily follow the curve with the cutter.
I'm surprised you did not round the inner face of the braces to ensure better internal bonding contact of the parts.
wow i love the brackets you made to join the 3 tubes together! Do ever use (i think its called ) pull ply when making carbon fiber stuff?
We do use peel ply sometimes, but we've found that the surface texture it produces is quite rough and needs a lot more sanding. We use the lightweight fiberglass cloth instead that produces a much smoother finish. It also acts as a sacrificial layer that we can sand without cutting into the carbon fibers below.
@@AirCommandRockets cheers george! I found the same, but then i watch all the rocket builders and everyone swears by it!. Hopefully ill get up to nsw again later this year!
Great video as always! Where did you get the styrofoam (?) holders/beds for the boosters?
It's just high density foam that we got in some packaging. I can't remember what was shipped in the box. It's the sort of foam that computers or microwaves are often packed in for transport.
Is there a launch window for water rockets??? Or is there a big event in 3 months?
That's the club's high power launch event up in Mullaley in August.
Excellent work guys! (~_^)-b