Old School Doug
Unwilling participant in the idiocracy.
Big fan of using mylar streamers, especially on cloudless days. The reflectivity of the material gives an extra edge when spotting a higher altitude LPR/MPR flight.
What did you do rocket wise today?
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Big fan of using mylar streamers, especially on cloudless days. The reflectivity of the material gives an extra edge when spotting a higher altitude LPR/MPR flight.
I've been working on the Eggfinder reciever, another one of Cris Erving's fine products. My progress has been slowed by a vision issue. I was diagnosed with permanent double vision from a nasty ear infection about 35 years ago. That has presented a challenge, but humans are adaptable creatures and I have adapted to the problem over time. Over the past ten days or so, my vision has degraded markedly. A lot of things have become more challenging. I'm trying to get in to see an eye doctor before I get a white cane and I have to start building by braille. I'll keep you informed as I learn more. I guess that I just keep getting younger.
Jim
Jim
This morning I cut number 133 in half. Seems when I built it I had a lapse in smarts. I put an 8" long 38mm mmt in and left 21" empty above it. So I cut the lower section in half and inserted a coupler with a laundry shelf. Glued the halves together and covered the cut with vinyl tape. Easy peezy. Last night I fixed a fin on the same rocket that had been broken off during transit. I had gotten some black epoxy dye and mixed some up. The fin to be repaired was black and the repair can't been seen very well. It worked so good that I ordered a set of 28 dyes.
The big news is that I finished the lander after months sitting waiting for the temperature to be above 60 so I could get some paint on it. All the parts were painted separately because masking would have been right next to impossible. At first I tried to tack a leg support on with CA. But when I sprayed the accelerator on it took the shine off the aluminum paint. So I waited a couple of days to sand it and that's how it sat until last week. It warmed up and I resprayed . I was about half way done with assembly and tried to wipe off a little stray epoxy with alcohol and it took the shine off and left run marks. Nuts. So not having a perfect shiny new off the assembly line rocket I have one that has been asteroid mining for years. I have never distressed a rocket before so I'm not sure if it looks ok.
This rocket came to be because of something that happened months ago. I was changing a TP roll and I had the roller in my hand. I looked at it as though I had never seen one before and thought landing leg. So in the red pods, which are 29mm motor tubes, the rollers fit like a glove. Since each roller has a spring in it the rocket can bounce up and down. I hope they cushion the landing and the rocket lands upright. The rocket is a 2.6" BMS heavy BT. It's 45" long and weighs 63 ounces with a chute, It has a 38mm x 9" mmt. On to the next build.![20220214_225242[1977].jpg](https://cdn.imagearchive.com/rocketryforum/data/attachments/421/421947-dd808d9592b8b019f84290c73e1c2197.jpg "20220214_225242[1977].jpg")
![20220217_113254[1979].jpg](https://cdn.imagearchive.com/rocketryforum/data/attachments/421/421948-cd93da6bff5002ed8318fde35c3a8c6c.jpg "20220217_113254[1979].jpg")
![20220214_225209[1974].jpg](https://cdn.imagearchive.com/rocketryforum/data/attachments/421/421950-ef27c419fb8ab4ff4c5341f960c766e8.jpg "20220214_225209[1974].jpg")
The big news is that I finished the lander after months sitting waiting for the temperature to be above 60 so I could get some paint on it. All the parts were painted separately because masking would have been right next to impossible. At first I tried to tack a leg support on with CA. But when I sprayed the accelerator on it took the shine off the aluminum paint. So I waited a couple of days to sand it and that's how it sat until last week. It warmed up and I resprayed . I was about half way done with assembly and tried to wipe off a little stray epoxy with alcohol and it took the shine off and left run marks. Nuts. So not having a perfect shiny new off the assembly line rocket I have one that has been asteroid mining for years. I have never distressed a rocket before so I'm not sure if it looks ok.
This rocket came to be because of something that happened months ago. I was changing a TP roll and I had the roller in my hand. I looked at it as though I had never seen one before and thought landing leg. So in the red pods, which are 29mm motor tubes, the rollers fit like a glove. Since each roller has a spring in it the rocket can bounce up and down. I hope they cushion the landing and the rocket lands upright. The rocket is a 2.6" BMS heavy BT. It's 45" long and weighs 63 ounces with a chute, It has a 38mm x 9" mmt. On to the next build.
Started assembling the cheapo 29mm rocket based on the Estes PSII booster as the fin can and built a sim. Got basically $20 into the rocket so far and just need a parachute. Sims nice in OR on a wide variety of motors.
booster is assembled, rail buttons installed in the tubes, baffle partially assembled, vent holes drilled. Very little time involved too.
booster is assembled, rail buttons installed in the tubes, baffle partially assembled, vent holes drilled. Very little time involved too.
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Why is Simulation 12 deploying so fast?
Just selected the delay it gave me when I picked the motor. I'll change it. Was more concerned about checking rail speed right away before going and picking all the right delays
lakeroadster
When in doubt... build hell-for-stout!
I started designing a scale model of the AIR-2 Genie Air-to-Air Missile. An unguided nuke from the Cold War era, that launches from a fighter jet.
That was one of my cousin Larry’s projects. He was a nuclear physicist who contributed to the development of all kinds of extremely compact nuclear weapons. Recoilless rifles, backpack bombs, anti-tank land mines, artillery shells, that sort of thing, all with that delicious nuclear spice.
Damned interesting scale subject. An unguided nuke requires a leap of faith. Is that being fired from an F-102 or an F-106? I could never tell them apart.
Jim
Other captions I’ve found online for that photo indicate an F-106.
That’s not an armed round, BTW. The only firing of a live Genie with a hot warhead was from a Northrop F-89 Scorpion.
Electronic fire control systems on the aircraft targeted, armed, and fired the rocket (no iron sight for this bad boy), and the lethal blast radius was about 1000 ft in any direction.
A squadron armed with these would have been able to take down an entire formation of bombers with relative ease.
You Tube has a real interesting video on the Genie. They show the live firing from the F-89 including the detonation. I've got to marvel at the cojones of the USAF officers involved. Five of them were underneath the detonation at 'Ground zero'. Apparently neither they or the aircrew suffered any ill effects, you've got to love that. The guys on the ground got pretty excited when the shock wave arrived though.
Jim
lakeroadster
When in doubt... build hell-for-stout!
Thanks for the mention of the video.. Here's a link: The MB-1 'Genie' - The USAF's Unguided Air-To-Air Nuke - YouTube
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Full Scale ARCAS getting a throwback design. Paying tribute to my kid's old favorite Aerotech Arcas we did when they were tikes. Always was a favorite among the kids. Heck even the big kids. Now with one in the service and the other graduating college this year it's time for the next generation. How time flies... It's the grandson and I flying paw paws rockets and his own LP. SpongeBob ARCASpants will be reborn to keep it going. What a ride
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Huh, tube from a roll of parchment paper seems like a convenient size.
Creative....
Used it to add a stuffer tube to the build posted above. Adds a little weight, but will be better to not have as much volume to fill before the baffle.
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I should be sitting in Oscoda Michigan right now on my first day of my 20 day work rotation, but my flight to Detroit was cancelled and rescheduled for tomorrow, so I was home this afternoon when my latest order of goodies arrived.
Several kits from AC Supply, and then a nearly unobtanium (at the moment, at least!) 75mm aeropack retainer for my 2/3 Astrobee D project arrived from Chris Short. Gotta give Chris a shout out for excellent service, as I placed the order on Monday afternoon when I discovered he had one in stock, and it arrived today!
Too bad I can’t do anything with these for 20 days now…
Several kits from AC Supply, and then a nearly unobtanium (at the moment, at least!) 75mm aeropack retainer for my 2/3 Astrobee D project arrived from Chris Short. Gotta give Chris a shout out for excellent service, as I placed the order on Monday afternoon when I discovered he had one in stock, and it arrived today!
Too bad I can’t do anything with these for 20 days now…
Cape Byron
Rocket kits from the Land of Oz
Found this guy…
Ridiculous! You can't even begin to design a thing like that (nuke or planet killer) unless you can measure the yield.
Nice. I guess you'll have to do more baking.
Seems like an understatement.
What size clear payload tube is he going to need? How much does he weigh? We need to know these things.
lakeroadster
When in doubt... build hell-for-stout!
"I think we're going to need a bigger helmet"
NateB
Well-Known Member
I had a big rocketry day today.
Got a retainer on a motor mount.
Got a retainer on a motor mount.
started on another rocket today as this makes four of them, So that when I put a tip on the epoxy cartridge, I can get the most out of the tip.
Re-Bar Ricky
Well-Known Member
Went to our local group's launch today and while I was there I went back and looked for my Estes Rock-It that I lost in December. After about an hour of zig-zagging through the treeline, I finally found it! The main tube had fallen towards the ground but was still about 4feet up in a tree. The nose cone (the most important part because it's a unique design) was still hanging with the parachute about 25' up. With the help of an extension pole and hook, I finally was able to grab the nose cone and get it down. The tube had deformed a bit due to weather over the past couple of months but the nose cone was still solid.
The rocketry group had some rockets and parts available for sale and I just happened to find the right size tube needed to rebuild the rocket. So, all i need are new fins and motor mount and version 2 will be ready to go.
The rocketry group had some rockets and parts available for sale and I just happened to find the right size tube needed to rebuild the rocket. So, all i need are new fins and motor mount and version 2 will be ready to go.
Old School Doug
Unwilling participant in the idiocracy.
Old School Doug
Unwilling participant in the idiocracy.
The last of the simul-build is done and dusted. The modular, mid deploy tube fin extravaganza are awaiting decent (read that as warm) weather for their initial launches.
From the left....Snake Eyes, Trips, Deuces-Deuces, Vennomous, Six the Hard Way, and Aliphont.
From the left....Snake Eyes, Trips, Deuces-Deuces, Vennomous, Six the Hard Way, and Aliphont.
I did not really do anything rocketry today, other than to take possession of my recovery harness' (One Bad Hawk) that I ordered for my DX3 Massive, and a 15' length of fill line for my nitrous GSE. Feels like Christmas today!
8 flights today. All went pretty well despite the JLCR band getting stuck to the chute on my 3" Goblin after a boost on a F52C. Cracked the tip of the NC, but easy fix. Rest is fine. 2.5" Nike-X also on a F52C. Tried out the new 29mm Big Daddy with a pair of E30s to see how it does...perfect. Time to crank that one up. Black Brant X and Kraken on a D12-5 were great. Good windcock out of the OG Big Daddy on an E12-4 but recovered fine, should have went E20. Super Baby Bertha went nice on an E12-4 though. Good battery of flying.
After reading a post about set aside projects, I thought I should finish the Andromeda I started in 2020. I had painted the last coat of black last fall. So, I hand painted the inside of the pods. Now on to decals....
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