What did you do rocket wise today?

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Anyone else getting excited?
Check out the Team ShotokuTech rockets for the National Sport Launch 2019. I surprised myself by unleashing the motivation to finish a couple of projects that had been stalled for a year and even more.
#NSL2019 #ModelRocket #HPR

https://bit.ly/nsl2019update
 
jeffjblack said:
Anyone else getting excited?
Check out the Team ShotokuTech rockets for the National Sport Launch 2019. I surprised myself by unleashing the motivation to finish a couple of projects that had been stalled for a year and even more.
#NSL2019 #ModelRocket #HPR

https://bit.ly/nsl2019update
Click to expand...
Until about nine months ago I lived about 15 or 20 miles from there. This year I get to go to NYPower, so it's not all bad.
 
Posted my liquid fuel rocket motor excel spreadsheet to research section. Still waiting on a written agreement with Hytrol for conveyor belt design stuff lol.
 
Tested my new favorite filler on a spiral groove. This is a found tube, bathroom paper towel roll from work, 2 mm thick. The groove is about 1/2 mm deep and 3/4 mm wide. The total groove length is about 18 or 19 inches. Here's the before picture:
20190522_173631.jpg
About 5 minutes of smearing spackle into the groove with a finger and smoothing with a hotel room key gives this: the during picture:
20190522_174729.jpg
After an hour I did about 5 minutes of sanding with 400 grit to get the after picture.
20190522_190551.jpg
The results of this first attempt were not uniform along the length. In places the grove is clearly visible (in person) thought shallow enough to be easily filled by primer. In other places you can't feel the groove at all while running a fingernail over it.

Overall, I'm very pleased.
 
Today I was reworking my 1/200 scale Estes Saturn V. The idiots at Estes say it flies on a "C" engine of theirs, NOPE. It goes up about 80 feet ! I am modifying it to accept Estes "D" engines. I suggest everyone that has this rocket do this if you want any kind of decent flight. The model is sold already overweight for the recommended engine, and the flight is abysmal. I have attached several photo's of how easy it is to do, and I am going to add a couple of squares of clay to the front section to offset the weight of the bigger engine. Layout.png Layout 2.png Notches.png Position.png Layout 3.png Engine clip.png Blast space.png screws for fins.png
 
Gerald said:
Today I was reworking my 1/200 scale Estes Saturn V. The idiots at Estes say it flies on a "C" engine of theirs, NOPE. It goes up about 80 feet ! I am modifying it to accept Estes "D" engines. I suggest everyone that has this rocket do this if you want any kind of decent flight. The model is sold already overweight for the recommended engine, and the flight is abysmal. I have attached several photo's of how easy it is to do, and I am going to add a couple of squares of clay to the front section to offset the weight of the bigger engine. View attachment 383956 View attachment 383957 View attachment 383958 View attachment 383959 View attachment 383960 View attachment 383961 View attachment 383962 View attachment 383963
Click to expand...
Instead of going through all that trouble, why not just pop in a Quest 18mm C or D Q-Jet? Problem solved, no modifications needed.
(BTW I would beg to differ with you about the people at Estes being "idiots").
 
Found three AT F21 SU 24 mm motors that I didn't know I had (bottom of the propellant box).

Unfortunately I suspect that the propellant won't light after (probably) ten years. White Lightning. Might give one a try on the test stand, fer fun.

Best -- Terry
 
kuririn said:
Instead of going through all that trouble, why not just pop in a Quest 18mm C or D Q-Jet? Problem solved, no modifications needed.
(BTW I would beg to differ with you about the people at Estes being "idiots").
Click to expand...
On the other hand, if you're going to put in the 24 mm motor mount, you might want to add the extra inch to take the Estes E motors.
 
Completed my Red Nova ready to fly naked at NYPower.

Resanded and resprayed the repair on the Zenith II; this paint isn't covering well, but it'll have to do for now. It's time to remove the masking around the repair and blend into the rest of the paint (even though it's the same can as the original, there's a step in thickness at the masking lines) and this paint can't be sanded after a mere 24 hours. It galls, which galls.

Thought I finished priming the SloMo, but sprayed too heavily on one side and have bad drips. Damn! It'll be sandable tonight.

All three and others will fly this weekend.
 
kuririn said:
Instead of going through all that trouble, why not just pop in a Quest 18mm C or D Q-Jet? Problem solved, no modifications needed.
(BTW I would beg to differ with you about the people at Estes being "idiots").
Click to expand...
Or AT SU or RMS 18mm D?

Agree on the Estes people.

Greg in Mississippi
 
Today, I put a coat of white paint on a Mach 1 Exiter and finally decided to put a layer of prime on a modified mini Wildman Eagle Claw that I started a long time ago, maybe 2011 or 2012? The aft end was chopped off to a single set of fins and it will be named after my son.
 
Decal work on two Black Brant IIIs:
Left, Rocketarium. Right, Estes.
0524192359.jpg
Some minor brushwork on the Estes model ( one fin white and paint the nozzle black) and it's done.
 
Well, only partial success at losing more. I recovered my Big Daddy after a flawless flight on a D12. I recovered the booster of my Zenith II, but did manage to lose the sustainer.

The booster motor was a C6-0. It flew a little off vertical and went into a gravity turn. Staging was a bit delayed, and when the A8 in the sustainer lit the rocket was at about 45 degrees, more or less, aproximately. Despite only having an A motor, it had enough initial speed and altitude to disappear.

Now I have a bright yellow-orange booster to stick under some other BT50 18 mm rocket.

Tomorrow, maybe I'll try to not lose what I launch, and see how that goes. :D
 

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