Has anyone built the new 11.5" Cowabunga Mammoth yet?

[Nathan]

It's been on the Madcow website for almost a year but I haven't seen any discussion about it. Has anyone built one yet? I'm thinking about it . . .

 

[djkingsley]

Go for it Nathan, it would be awesome. I looked at the kit on display during LDRS last April.

 

[Swissyhawk]

Would you go with the standard "cow" paint job or do your own thing?

 

[Bat-mite]

I want one. Hard to justify to the wife since I had to spend a lot to rebuild the F200. Might hang in there till next Black Friday and see if there is another 25% off sale.

 

[markkoelsch]

It's been on the Madcow website for almost a year but I haven't seen any discussion about it. Has anyone built one yet? I'm thinking about it . . .

Nathan, how many months of wet sanding would a rocket of that size require to get one of your famous finishes?


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[Nathan]

Go for it Nathan, it would be awesome. I looked at the kit on display during LDRS last April.

I think I will. But I'm already just now starting on a 6 foot tall replica of Tom Cohen's big square rocket. So it might have to wait on the build pile for a while. Since apparently nobody here has built a Cowabunga Mammoth yet I guess I should do another build thread.

I want one. Hard to justify to the wife since I had to spend a lot to rebuild the F200. Might hang in there till next Black Friday and see if there is another 25% off sale.

The stock market has been very good to me this year.

Would you go with the standard "cow" paint job or do your own thing?

Definitely it would need a custom paint job.

Nathan, how many months of wet sanding would a rocket of that size require to get one of your famous finishes?

It's only about 8 feet tall so without doing the math I'm guessing that it has about the same surface area as my upscale Frenzy which is 13'6". That took several weeks of wet sanding. But polishing a big rocket is actually pretty quick and easy because I use a power polisher.

 

[djkingsley]

What are you using for the square tubes?

 

[markkoelsch]

I think I will. But I'm already just now starting on a 6 foot tall replica of Tom Cohen's big square rocket. So it might have to wait on the build pile for a while. Since apparently nobody here has built a Cowabunga Mammoth yet I guess I should do another build thread.



The stock market has been very good to me this year.



Definitely it would need a custom paint job.



It's only about 8 feet tall so without doing the math I'm guessing that it has about the same surface area as my upscale Frenzy which is 13'6". That took several weeks of wet sanding. But polishing a big rocket is actually pretty quick and easy because I use a power polisher.

Nathan, I give you credit- I would never have the patience nor technique to do that. I am sure it will be gorgeous when done though.


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[Nathan]

What are you using for the square tubes?

I'm designing it as a 4x upscale of the mini Higgs Farm rocket. It will be a 4" fiberglass rocket with plywood on the outside. I'm still trying to figure out how to build the nose cone.

 

[Andrew_ASC]

Copper plate barn silo look? I have no idea what you mean by farm rocket.

 

[mpitfield]

I'm designing it as a 4x upscale of the mini Higgs Farm rocket. It will be a 4" fiberglass rocket with plywood on the outside. I'm still trying to figure out how to build the nose cone.

Does that mean it will have a 98mm MMT

 

[Nathan]

Copper plate barn silo look? I have no idea what you mean by farm rocket.

This is Tom Cohen's square rocket. Later he added "Higgs Farm" decals and the name changed to Higgs Farm rocket.
[video=youtube;gZwkg0ho6tQ]https://www.youtube.com/watch?v=gZwkg0ho6tQ[/video]

Does that mean it will have a 98mm MMT

It will have a 75mm MMT

 

[Andrew_ASC]

Ahh okay. Thanks I had trouble visualizing it.

 

[Steve Shannon]

Ahh okay. Thanks I had trouble visualizing it.

It’s called that in honor of the working farm that welcomes the Maryland Delaware Rocketry Association and allows them to launch part of the year.

 

[djkingsley]

I'm designing it as a 4x upscale of the mini Higgs Farm rocket. It will be a 4" fiberglass rocket with plywood on the outside. I'm still trying to figure out how to build the nose cone.

I would think that foam board covered in fiberglass similar to the way the mini is built would work well.

 

[boatgeek]

I'm designing it as a 4x upscale of the mini Higgs Farm rocket. It will be a 4" fiberglass rocket with plywood on the outside. I'm still trying to figure out how to build the nose cone.

I did a pyramid nose "cone" for my square rocket, also a 4". It only has a 54mm motor mount because I'm a wimp like that. Build thread here, with some pictures of the nose cone assembly at post #38. https://www.rocketryforum.com/showt...esn-t-quite-fit-in/page2&highlight=dimetrodon The Higgs Farm shape is a little harder, but could be done with similar techniques.

 

[Bat-mite]

Nathan, you might want to talk to Tom about what he learned regarding altimeter port holes in square rockets. When the Higgs rocket was new, we had the NC blow off on the pad when Tom opened his bay door. He asked around and ended up making some changes to his port size and location, and it hasn't happened since.

 

[Nathan]

Just ordered the kit!

Madcow only charged me $5.99 shipping. I think that might be a mistake since this is a 40 lb, 8 foot rocket which I'm sure is going to ship in a big box.

 

[DavidMcCann]

Just ordered the kit!

Madcow only charged me $5.99 shipping. I think that might be a mistake since this is a 40 lb, 8 foot rocket which I'm sure is going to ship in a big box.

Last I knew Madcow was doing flat rate shipping... at least they used to.

 

[Bat-mite]

Last I knew Madcow was doing flat rate shipping... at least they used to.

Yep, they inherited that from Rocketry Warehouse.

 

[Nathan]

Cool. I've paid a higher shipping charge that that just to buy a handful of bolts.

 

[recon60]

That is steal if they ship the mega cow for flat fee. Thanks much Mad Cow.

 

[Bat-mite]

Flat fee on anything in stock. Not for special orders.

 

[Swissyhawk]

I wonder how many 11.5" Cowabungas they keep in stock?

 

[Nathan]

I wonder how many 11.5" Cowabungas they keep in stock?

Apparently only one. After I ordered mine it changed to "Out of stock".

 

[The_Lone_Beagle]

The stock market has been very good to me this year.

Oh no! I hope you don't have to send it back!

How's the build going?

 

[Nathan]

Ha, easy come, easy go. The Cowabunga build hasn't started yet, don't have all the parts yet. Plus I'm working on another HPR build now already. I'll do a build thread when I start working on it.