Tag: Sidney Lanier High School

Fredericksburg’s STEM Academy/Rocket Program-Spring Term Update #3 (April 1-April 30)

May is here and time is running out for the Fredericksburg STEM Academy as launch dates approach for the junior and senior groups. Juniors have a  May 18th test date at Rockets 2017 in Willow City. While the seniors are down to less than 3 weeks as Redbird 18 is scheduled for completion two weeks before school ends to allow for preliminary systems tests.Due to delays in manufacturing, testing will have to occur in the process of construction as components come in. Final testing will be the week of June 19th prior to their test at WSMR the following week. It is slated to launch at White Sands Missile Range on June 27th.

During April the seniors tested Low Density polyethylene (LDPE) three times on teststand. Data on all tests was consistent and exemplary. Currently the injector plate is being drilled again to increase the oxidizer flow rate to the correct  value to provide for complete combustion.  Due to this testing is on hold. Lately they have been experimenting with different ablative arrangements. The ablative has  burned through slightly but not enough to damage the test cell.

Below is an actual video of an engine burn test.  This one of the first video’s with HD video quality and audio.  The regularly captured video does not have audio embedded.  This is good for them too as they do these tests for NASA and this gives them something  more to show of their work.

https://goo.gl/photos/78HwtXxx8rytjxSV7

Mr. Matthes had this to say about this particular burn,  “It looks pretty good but we’re only getting about 1/3 of the oxidizer we should be getting so it is fuel rich.  It will not be as orange when we get the oxidizer flow rate correct.  The hope is that it is a really clean plume with mach diamonds in the plume.”

The senior’s “junior teststand” nick named “Baby Bird” is almost complete. They hope to conduct their first ever test on this new teststand possibly late this week. This teststand was created by the seniors starting last year during junior studies to test a fuel grain system designed and developed by them to interface with the hyportek injector and tank. They hope to have 3 successful tests on this teststand. If they achieve this, then they get to fly this new system at Willow City in last year’s rocket.  At this point,  they are getting fuel grains prepped.  Pictured below, are nozzles created for Baby Bird.

Redbird 18 still currently does not resemble a rocket, but they are making steady progress. The nozzle has been manufactured, seen here 

and  the nose cone mold is also back, seen here. 

Machining could only be created to within 8 inches of the tip, therefore they created the tip with 3D printing and epoxied it to the nose cone and are preparing it for fiberglass.

Other needed materials are in and have been sent out to Heartland Enterprises for machining.  Currently, Mr. Matthes says that the biggest test coming up will be next week when they pressure test the oxidizer tank.

Juniors are under pressure as the deadline for 100% completion of their rocket is May 11. Meeting this deadline will allow them time to complete their Flight Readiness Reviews (FRR) and be able to high light problems or errors that still exist. Components are coming in and weights on some are different than originally reflected in RockSim. Due to this they are updating their design to accommodate. Currently they are still on the wire between breaking the speed of sound and exceeding the 13,000 feet maximum allowable altitude. Breaking Mach means they also exceed altitude. Staying under 13,000 feet  means then they lose their shot at breaking Mach.

 Here Chris Calzada is working on RockSim trying to resolve the altitude velocity conundrum.

Meanwhile the Sophomores have been entrusted to work at their own pace to finish their last chapters and projects. Time remaining after completion of these is for 3D printing and modeling. Their learned skills in  isometric, creating section views, details and working drawing sets would now allow them to communicate effectively to a machine shop without the need for clarification.

Paul Kucherka, a FISD maintenance man and school function videographer developed an issue with the quadcopter that he uses to video. A few of the sophomores are going to attempt to design and develop a new wiring harness that may provide the solution to Paul’s needs, hopefully by the end of the school year,  this would allow him to continue using this equipment for video. In order to do this, a few other sophomores have been creating the multiview of one of the quadcopter’s parts on the 3D printer. Pictured below is the original part they are attempting to recreate.

This article is the seventh in a series, new for this school year ’16/’17 of monthly updates that will follow the Fredericksburg STEM Academy/Rocket program. This school is a participant of the SystemsGo STEM program. This series of articles is intended to support, encourage, and challenge students in the program as they share their working status and accomplishments throughout the year in the program. These publications will be available for tags and re-posting.

www.systemsgo.org as always is the place for more information on this program. You may also email them at info@systemsgo.org . Take the time to get your school involved, the future of your students will be greatly benefited.

Day 11-Fredericksburg Rocket Launches Day 4-Sunday, Hondos, and Home

The first day back at work was a busy one. It was time to catch up on all that had come in while I was out, that Billing Day didn’t require some one do for me in my absence, and there was plenty. Of course I know there was plenty that had been done too. It wasn’t too bad though, and helped me get acclimated again. I also cashiered for half the day so some things had to wait until tomorrow. That is just the nature of the situation.

I did get to have Connie’s lunch at noon today though, so Steve and I were able to eat with Chelsea and Guy before they left for Lubbock again, that was nice.  I also was able to text a little with Kasey today, since she had a training day for newbies and she was bored. We talked about her fun time on her birthday riding roller coasters and hanging with her goofy Marine friends and Melissa. We have a standing joke that her dad started about Marines biting so she assured me no one got bit and then called me silly. I just don’t know what she means by that!

After work, I went to see my mom at rehab. She is doing really well, and will probably get to home later this week after the staples are taken out of her knee. She is really happy about that. She is walking well now, and the pain and swelling are much better again. She says the other knee no longer hurts anymore either. Her hair dresser had been by and fixed her hair for her and she looked so pretty. She was quite happy with that too. It will be great when all this is completely over with and she get out and around again like she could before her knee went bad.

I had church council this evening. And it seems every evening this week there is something again, and apparently Saturday as well, It just seems to be crazy busy all the time. Just a crazy observation, but look at those two words, crazy a busy, yet another conundrum of the English language. They rhyme and both have z sounds, yet one is with a s and the other a z. I know, a random thought, but it was there so I decided to share it.

Last week was quite busy, but I wouldn’t trade it, because that busy was fun and I would go right back to it if I could.  Poor Steve went on call this morning and is still out right now working. No rest for the weary. We had a really brief rain shower a few minutes ago. I haven’t seen the TV or any weather since Wednesday night so I have no real idea what it is supposed to do. Weather tends to cause outages though, so that means work for our linemen, including my Steve.

I am happy to have the rain though. We had a total of 4 inches at my house Thursday through Sunday. Yippy, but now I live in the Amazon, and I don’t think I have moved locations. The worst part is, that all our mowers have quit working, so that creates a problem. Right now I think we need a shredder anyway. There are some areas that my medium-sized dog gets lost in when she runs through it.

I would like to congratulate SystemsGo on another successful launch year for Rockets2015. Both weekends here and Houston went well. I would also like to say how thankful to this program I am. I have had two daughters. I would also like to thank SystemsGo for having us as volunteers for the program. I am really happy to be part of such a fantastic education based program for our youth.

Of course the Goddard level launches are still coming up hopefully in July at White Sands Missile Range in New Mexico. I will keep everyone posted on that as well as information is available. The schedule is always at the mercy of the Army so I won’t give dates until we know for sure, but right now they are looking at early July. Good luck to all those schools and safe  travels when you go there. For more information as usual check their website at www.systemsgo.org .