What did you do rocket wise today?

JMZawodny said:

Build Threads seem to be littered all over the forum. Where should I put it?

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What Power is it? There's your Answer!

TopRamen said:

What Power is it? There's your Answer!

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With four 38mm motors in the booster and 54mm up top, this is high power. The Low, Medium, and High power categories have too much other stuff in them. Scale does not have much in the way of Build Threads. I'm leaning towards the Scratch Built category.

Started assembling the motor mount for a NXRS Commemorative Rocket, a 3" x 60" 3FNC model with a 38mm mount. My first model to have dual deploy.

Started gluing fins on a 2X Centuri Astro-1.

JMZawodny said:

With four 38mm motors in the booster and 54mm up top, this is high power. The Low, Medium, and High power categories have too much other stuff in them. Scale does not have much in the way of Build Threads. I'm leaning towards the Scratch Built category.

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If it is a Nike Hercules, I think it should go in Scale.

I put it in Scratch Built and the build thread is here.

Astro-1, original (Semroc) and 2 X Upscale!

Finished my Bruiser EXP3. parked next to my downscale Bruiser EXP.

fox_racing_guy said:

Finished my Bruiser EXP3. parked next to my downscale Bruiser EXP.

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I guess I did not realize that the Bruiser was such a ... well ... bruiser. They both look great. The finish almost looks like it was done with Monokote. Is it paint or vinyl?

Built this baffle/attachment point bulkhead for the Partizon from bulkhead plates I had cut a while back.


It will look like this when installed.

JMZawodny said:

I guess I did not realize that the Bruiser was such a ... well ... bruiser. They both look great. The finish almost looks like it was done with Monokote. Is it paint or vinyl?

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The Big Bruiser was painted with automotive stuff all from Summit Racing. When I decided to build it last fall I knew I didn't want to use spray cans. Little bruiser was painted with Duplicolor spray cans. For anyone on the fence about automotive paints I highly recommend it now. I used a $15 gun from harbor freight and watched many youtube videos.

fox_racing_guy said:

Finished my Bruiser EXP3. parked next to my downscale Bruiser EXP.

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WOW!!!! Well done!!! Are the details vinyl? Or air brush?

Fantastic!!! :clap:

fox_racing_guy said:

Finished my Bruiser EXP3. parked next to my downscale Bruiser EXP.

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Clearly, you need a bigger garage to house this in.
Time to evict the wife and all her silly patio furniture, household items, autos and family heirlooms....

gdjsky01 said:

WOW!!!! Well done!!! Are the details vinyl? Or air brush?

Fantastic!!! :clap:

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With the exception of the black ring between the 2 yellow (it's the altimeter bay) those are vinyl. The black & red fins + tail section is paint and those round objects are part of the decals that you can purchase here https://shop.locprecision.com/product.sc?productId=344&categoryId=34

I started this project last Sep and just finished it today. It is all wood glue construction so that part took about 5 weeks. It was a pretty cold winter here in Ohio so I didn't get to start painting it till 2 weeks ago.

Love the "Mini-Missile".

On the other hand, I "painted" my mega mosquito fins with a slurry of wood glue and water, dried, sanded, painted again, sanded with finer grit, and now am considering backing off to get a palm orbital sander out to go feather those leading edges like I should have done before gluing the damn things into the body. Wish me luck...
(Not only on sanding without breaking a fin or damaging the body, but getting that palm vibrator sander away from the wife...
"But you can't have my toy... I'm not done with it yet...")

The wind was absolutely still this morning so I took my son to a local park to fly his Apogee Avion science project rocket. Once we got there I realized that we didn't have the 1/8" rod with us, so we had to go home and get it. Then we lost the altimeter and nose cone on the first flight. Amazingly Jacob was able to find them within a minute of the flight. I had them both tethered to the bulkhead in the payload bay, but the screw eye tore out of the balsa. I had also soaked the joint with CA. We drove home and I drilled a hole all the way through the bulkhead and tied the tether to the screw eye on the bottom of the bulkhead. I also added a wrap of tape to all three nose cones. We went back and got 6 more flights in. The bottom screw eye tore out of the bulkhead after the 3rd or 4th flight, but since I had tied the top tether to it the rocket stayed together. I'm guessing that the kevlar shock cord that came with the rocket is too short.

Interestingly two pairs of flights with the same nosecones each got within 1% of each other (Flat - 603',604') and (Parabolic - 698',705'). The conical nose cone's flights were within 2% (710',723'). We did have one flight that seemed to have a slow liftoff and then really accelerated about 1 second into the flight. It arced over to about 45 degrees so we threw out that flight.

Began work on a 29mm MD rocket

Fell prey to the Estes Pro Series Mega Der Red Max fever. Bought one off of fleabay. Never have built one of these in any size. Had to get one from fleabay... The only Fry's we have here need ketchup!!!

Adrian

Cut out some Nylon to make a Parachute from. My Mom is supposed to be bringing me her Sewing Machine tomorrow so I can borrow it to make up some Chutes.
I have a Tent Fly from an old 8 Person Tent that got ruined. I ought to be able to get at least 10-15 Chutes out of it, probably more.

Did a google hangout with conman13, talked with him about some avionics bay stuff. Now if his computer would quit having issues...

Added a number of launch pictures from our club launch on Saturday.

https://www.rocketryforum.com/showthread.php?64925-Woosh-invites-you-to-the-April-launch-at-Bong

Turned a space blanket into a couple of Mylar parachutes. Was also going to make a big streamer from the excess, but brain farted and cut it at a 4:1 ratio instead of 10:1 (I don't know why). So I'll have to turn that into smaller streamers for other rockets.

I was going to assemble one of my replacement FAI style parachute/streamer duration models, but went on a quest for library books, printer ink, and food with my soon-to-no-longer-be-5-year-old (he turns 6 next week) instead.

Also got the cancellation notice for lunar's may high-power launch. Have to decide if I want to fly another parachute duration round badly enough to go to Fresno for a TCC launch.

Cleaned up my PM box.

Began making Parachutes with the Sewing Machine my Mom is letting me borrow.
I learned to use one in Home Ec Class in 7th & 8th Grade, and it turns out I still remember.

I've done literally nothing rocket-related in the last two weeks... I started playing KSP again >_>

Over on that side of things, I'm working on grappling a C-class asteroid into 150km Kerbin orbit.

Started work on my OROC NXRS 2014 Research Test Vehicle


Completed the build of my second Eggtimer (1st RevD build)


Sadly I also lost a part for my EggFinder TX. I know I had it when I unpacked it, but it's gone now.
Replacement is in the mail (Thanks Cris!).

TopRamen said:

Began making Parachutes with the Sewing Machine my Mom is letting me borrow.
I learned to use one in Home Ec Class in 7th & 8th Grade, and it turns out I still remember.

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That is SO cool.
In fact, I think you have the same model sewing machine as my wife has... we went to buy it together while in college, and she didn't want to lug it home alone. So she took me on the cross-town bus ride to go pick it up! True story!

I see you're sewing your own nylon parachute??!! Please foreward the directions or the plans to me. I'd like to try MY hand at doing that too.
By the way, is there a formula to determine what weight or size rocket requires what size parachute?

I can't tell you. It's a secret.

drilled and taped shear pins on darkstar jr sustainer then packed the project in mh for coming up weekend launch

plan is boost loki I405 .. stage CTI H143

leaving the AT J510 home