What did you do rocket wise today?

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Sanding the LOC Hawk. Then filling. Then more sanding. I'm pretty sure this is the only rocket with fin area measured in acres rather than square feet.
 
Received my order from AC Supply with 2x Saturn V. Opened a Saturn V to check out the contents. Nice.
 
OpenRocket is much more reliable when dealing with smaller models under Mach 1. I put a known configuration (basically an egg lofter upscaled) with Estes D12 through a nearly-9" long G motor. Adjusting fins, the D could get about 280 feet, while the G could do half a mile.

I am interested in flights that exceed Mach. Is there a way to make what I have, OpenRocket, take a motor or propulsion system other than what's listed? I am a machinist, after all, and have no trouble putting it on a lathe.

O8000 isn't enough. 95 miles up, turn to the east, and step on it.
 
Last night I finally started epoxying parts on my dream build. Will get a build thread going on it once I make more progress (on the road for a week now).
 

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OpenRocket is much more reliable when dealing with smaller models under Mach 1. I put a known configuration (basically an egg lofter upscaled) with Estes D12 through a nearly-9" long G motor. Adjusting fins, the D could get about 280 feet, while the G could do half a mile.

I am interested in flights that exceed Mach. Is there a way to make what I have, OpenRocket, take a motor or propulsion system other than what's listed? I am a machinist, after all, and have no trouble putting it on a lathe.

O8000 isn't enough. 95 miles up, turn to the east, and step on it.

Openrocket is actually pretty decent for transonic and beyond. You could always download RasAero II as another extreme simulator.

If you can find out how to generate an .eng file, you can load it in openrocket.

That being said, I highly doubt OR is suited for orbital dynamics, and 6DoF simulators arent cheap.

What would you like to build?
 
It's been brutally cold here in NW Wisconsin and the college I work at has been closed for the last 3 days, as are all the other schools in the area. In a couple of weeks I'll be getting together with some time friends for our annual Rocketboy Weekend. We fly low power rockets launched from the frozen lake at my friend's lake home.

I decided to build an Estes Bull Pup. Yesterday I finished it applying the decals. On Saturday I'll apply a couple of coats of clear cote to protect the decals. It's a nice little rocket. :)Bull Pupsm.jpg
 
It's Throwback Thursday, so here is a blast from the past. This is the Estes Partizon at the National Association of Rocketry's National Sport Launch hosted by FLARE and SMRA in Almagordo NM. I'm estimating from the flight simulation that the Partizon got over 3000 feet. I trimmed the parachute ejection delay from 14 seconds down to 11 seconds based on the simulation. Jolly Logic Chute Release was used to allow the chute to inflate at 400 feet. I used the Aerotech H135-14a White Lightning DMS motor. Don't worry, I'm certified for this.
Check out the video here:

https://bit.ly/partizonatnsl2017
 
Finished the fillets on the pods of Starover IIE (design from "Captives in Space", one of the 60s "Dig Allen Space Explorer" series). Slowly shaping up. I'll prime/fill it Saturday, when the weather warms up. Geniece is very tolerant of my rocketry activities, but spray-painting indoors is waaaay over the line... :)
Starover IIE_04.jpg
 
Updating the OR file off of dry masses of components for Hyper54 Ork file. My sims are now reflecting way closer to real Machs pulled from L motor flights of other hobbyists above Mach 2.3.
The altitudes match up for K motor flights off real data. Sadly the L1040 overpredicts altitude wildly.

The MAC OR file has errors on the fincan mass, coupler av bay band wasn’t included, and hardware mass was omitted. Also the fastback 54 retainer is omitted. I still love the kit. I’m one of those measure and weigh all the bits of a kit.
 
This morning the kid spec'ed out a "white tiger rocket" and ordered a digital rendering. Had to knock one out in a hurry -- while also looking for the good socks, eating breakfast, getting the homework into the back pack, figuring out which sheet music was requested for this afternoon's lesson...

WHITTIGERVECTOR.png

The head of design has given tentative approval, pending reviews of more claw-like and more fang-like canard fins and a report from the committee on whether tail fins are more properly treated as paws or a tail.

The proposal to print off a skin for the airframe has already been rejected. The hoses, couplers, and regulator for the airbrush are all in the shop. Delivery of the actual airbrush is still showing as two weeks out. It shouldn't take very long to teach myself how to airbrush realistic tiger stripes on a cylinder, right? <smile>
 

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Decided to start a solid model of the Estes Pro Series Patriot. I'm just measuring parts, modeling them, and sticking them into an assembly. May make some dimensioned drawings in time if I get motivated.
Maybe a PDF package?

upload_2019-2-2_17-9-20.png
 
Had some time today to start assembly of the shock cord mounting to 54mmt. Seen a thousand times but I love posting pic. maybe a new twist for some so what the heck.
20190131_145210.jpg basic parts, cleaned sanded and Acetoned.
20190202_143857.jpg CA tacked into place
20190202_144320.jpg Ready for the carbon tape wrap, heat shrink tape at the ready
20190202_144836.jpg20190202_144749.jpg cut to length
20190202_144836.jpg
20190202_153046.jpg 20190202_153048.jpg Starting the wet out wrap
20190202_153422.jpg heat shrink tape applied
20190202_154913.jpg heat gun used to shrink the heat shrink tape
 

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