What did you do rocket wise today?

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I have a progressive naming dream for Big Bertha up- and down-scales. Now I need a series for scaled Big Daddy clones, all scaled according to MMT. Starting with:
  • Baby Brother (MicroMaxx)
  • Little Brother (13 mm)
  • Big Brother (18 mm)
  • Big Daddy (24 mm)
  • Grand Daddy (29 mm)
  • Who's Your Daddy? (38 mm or bigger)
More names are needed for additional sizes.

I've got 13, 18(x3), 24 and now 29mm covered. Guess I better keep going.
 
I have pieces parts including the about as close PNC to make a 4" BD.
I also some frezken place, been looking forever, have Bid Daddy Roth 4" tall R.F. vinyl stickers ( same as picture) and , I guess, bumper sticker that read Ed Big Daddy Roth.
It looks like a banner stretched out.
Can't say I've have ever seen a
" Big Daddy Roth" Big Daddy rocket.
Whos your Daddy ...💥
Have you visited the Rat Fink store? It's being operated by Ed Roth's widow and family. They have the old Rat Fink plastic model among other items. Definitely worth a visit for Rat Fink fans.

Jim
 
I watched rocket DVDs with my four-year-old grandson for 2 hours today. and showed him the new Blobbo rocket that I got in the mail this week and he loved it. 😍
M2B4P9t.jpg
 
Uploaded Open Rocket to my new Laptop & Transferred the simulations, notes and other rocketry info to my new Laptop. Now that the airshow season is over, I can get back to Rocketry and Model Railroading. Still waiting for ammo to come down so I can get back to training at least once a month.
 
Updated masses and dimensions in OpenRocket for my mid-power rebuild and started detailed planning for the av bay. 23 days until the next potential opportunity to fly mid-power. My slow pace may mean I'll have to fly it on motor deploy then when I'd hoped to fly on electronics, but that's okay. It's always best not to rush.
 
Well, I didn't do this today but I noticed it today. This is my Estes Trident II currently in progress. I had to replace one tube because the original was crushed in the package. I am almost done except for the fins but....can any of my eagle-eyed comrades notice a mistake I made on the build?? And Happy Thanksgiving everyone!
20211125_155140_resized.jpg
 
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Venus Probe build. I got a layer of sand able primer on. Unfortunately I broke a fin while sanding...oops. repair went well though.
 

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Venus Probe build. I got the sandable primer sanded well. Just about time for paint primer
 

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Well, I didn't do this today but I noticed it today. This is my Estes Trident II currently in progress. I had to replace one tube because the original was crushed in the package I am almost done except for the fins but....can any of my eagle-eyed comrades notice a mistake I made on the build?? And Happy Thanksgiving everyone!
View attachment 491607
Tail cone and nose cone appear to be swapped. Happy Thanksgiving!
 
I went through the test questions for the level 2 written test which I'm coming up on 50 times going through and likely have another 2 weeks and going through it once a day will give me another 15 times or so.
 
Well, I didn't do this today but I noticed it today. This is my Estes Trident II currently in progress. I had to replace one tube because the original was crushed in the package. I am almost done except for the fins but....can any of my eagle-eyed comrades notice a mistake I made on the build?? And Happy Thanksgiving everyone!
View attachment 491607
NCs
 
Good day of progress here. Got all the internal fillets done on the MDRM build and buttoned up the business end. 29mm Big Daddy got all fillets done inside and out and is also finished up on the motor side of things. My son assembled his Super Big Bertha fins and also installed a rail button and the baffle/coupler in the forward tube and also glued the motor tube and front CR into place.

May fly some stuff tomorrow. Will see what the weather brings.

IMG_20211126_185726926_HDR.jpg
 
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Good day of progress here. Got all the internal fillets done on the MDRM build and buttoned up the business end. 29mm Big Daddy got all fillets done inside and out and is also finished up on the motor side of things. My son assembled his Super Big Bertha fins and also installed a rail button and the baffle/coupler in the forward tube and also glued the motor tube and front CR into place.

May fly some stuff tomorrow. Will see what the weather brings.

View attachment 491697

That Big Daddy looks like a downscale version next to that giant rocket...
 
Started designing a rocket for a friend. It needs to fly decently on motors from D through G, and I grew tired of adding and negating the mass of the Estes 24-29mm adapters in OpenRocket depending which motor I wanted to see when checking stability. I finally got sick of that and created new .eng files under the brand "Estes_w_adapter" for the C11, D12, and E12 with the mass and length of the adapters morphed in, imported them to OpenRocket, and was back in business. I should have done that months ago.

This particular rocket has some peculiar design constraints: it needs to sit stably on its fins on display (something I don't normally care about), it needs to use up some of my surplus BT-70, and if possible it needs to be light enough to fly on a C. So the design as it stands now is short to save weight, is squat with the BT-70, has wide swept back fins to achieve stability with heavier motors, and has distinct "feet" on the back of the fins. It's more and more resembling a mashup between Tintin's rocket and a Big Daddy. 😂

The Big Daddy connection is appropriate, given it seems sometimes (in the previous few posts, for instance) like half the forum have Big Daddy projects underway. I have two of them waiting to be built myself. :cool:
Big Daddy clone on the way... Loving the new CNC machine. So easy to upload and cut fins.
What nose cone are you using for the clone? That's been the hangup I've had regarding potentially cloning it myself.
 
Club flying day. Didn't do any flying myself but one of our universities had their rocket science class attend for their practical component. Fly a G-powered rocket. Over fifteen rockets flown by teams (1-3 people). We walked them through the flight process. Forms, RSO, range safety etc. Good time had by all and only a couple of rockets lost (wind was a bit high). I think this was our biggest launch attendance ever.
 
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