L3 Certification Documentation Links - No Third Party Comments Please

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Ok guys here is my NAR Level 3 project with paperwork. its a Ultimate Wildman Kit – 6in x 10.5ft fiberglass kit and went up on a CTI Pro 75mm 4G M1830 C-Star
It from a few years ago, but its still good stuff!! Some of you may have read about it in the NAR sport rocketry magazine in March of 2017.

Paperwork https://www.russhall.net/wp-content/uploads/2016/02/Hall_L3_ConstructionD1.8.pdf

Build thread page https://www.russhall.net/h3-rocketry/h3-2015/l3cert/

Successful launch thread https://www.russhall.net/h3-rocketry/h3-2016/20160320-2/

Enjoy ~ Russ
 
This is the description of my build for Yellow Bird that flew successfully at mini Midwest Power.
Even not counting the fact that it is mostly turned from styrofoam, like my nose cones,
It has many rather unique construction features and designs that I think could, and possibly should, be used on a lot of high power rockets
Enjoy!
 

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  • LEVEL 3.pdf
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  • LEVEL 3.pdf
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Any reason why folks are posting links instead of uploading files?
 
Juniper Lander was my L3 certification rocket.

It started as a Wildman Intimidator 3 kit, with modifications to fly as a 75 mm minimum diameter rocket. It successfully flew at Balls 28 on an Aerotech DMS M1350 to 23783 feet.

Altitude and descent rates closely matched predictions.

Construction details and calculations are captured in the attached TAP Pre Flight Review Checklist KB Rocket.pdf.

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  • TAP Pre Flight Review Checklist KB Rocket.pdf
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  • Juniper Lander Flight Check Sheet.pdf
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Attached is my L3 write up on 6" Formula 150dd on Aerotech M1350 DMS.

Flight report: Flew from Ariel Acres at MDARS monthly tripoli launch. Arrived at 9:25AM. Winds were moderate at 10-15mph. Assembled rocket and completed checklist. Went to the rail at 10:32AM. Completed Arming and telemetry checks at 10:34. Measured wind speeds of 15-20mph blowing roughly east.
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Worked with RSO to wait for wind lull of 12mph for launch. First attempt had bad continuity on the alligator clips for the launch box. Cleaned alligator clips and rewound. Second attempt, successful up at 10:40AM.
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As expected the rocket pointed into the wind about 4-6 degrees on launch. Winds at 1000ft were blowing south, and relative calm at altitude. Drogue deployment at apogee (11,056 ASL, 8250 GSL) and the rocket fell at 45ft/sec under the drogue (per GPS) relatively straight per tracking smoke. At ~1000ft, main deployed and lost GPS track shortly there after due to line of site.

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Straight forward drive up recovery about 1.8 miles from launch site. Main chute had dragged the rocket about 10feet before the tube filled with sand. Main was reefed for this recovery photo. Altimeters reported 8270 ft(Eggfinder Quantum) and 8220 ft (Eggfinder Apogee)
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Summary: Nominal flight. I have been making increasingly conservative assumptions about altitude from my experience flying experimental motors. I had predicted 7200 +- 500ft and the measured altitude exceeded that by 5-10%. The experimental GPS trackers I have been flying worked well, but the GPS altitude was 7% higher then the barometric altitude. Thanks to Kevin Metzler and Michael Ostby for supervising the project, Rick Maschek for photos and loan of parachute. Special thanks to Rylabs for general assistance.
 

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  • Level 3 Certification Report Mason Formula 150dd.pdf
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Cert flight successful on 23 October 2021 at URRG in Penn Yann, NY. Tripoli Certification flight.

Rocket is an 8" diameter AGM-33 Pike

Flight data:

Pad weight: 88 pounds (39,916 g)
Motor: Aerotech M2050X
T:W: 5.2/1
Expected Altitude: 2370 feet (722 m) (Rocksim 10.3)
Expected Velocity: 251 MPH (368 f/s) (Rocksim 10.3)
Actual Altitude: 2310 ft (704 m)
Actual Velocity: 249 MPH (365 f/s)
Descent rate under Drogue: 37 MPH (54 f/s)
Descent Rate under Main: 18 MPH (27 f/s)

Build Thread:
https://www.rocketryforum.com/threads/l3-project-8-agm-33-pike.167236/
Cert Flight Video:


Documentation:
 

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  • AGM-33 Pike Level 3 Certification Project FINAL_compressed.pdf
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Cert Flight went great on 12.19.21 at MDRA/Higgs Field.

Rocket was a Prometheus 6 by Composite Warehouse - the first of the Prometheus line after I reached out to them to do a custom kit for me for this project.

6" Diameter by 128"
75mm Motor-mount
50.5lbs on the Pad RTF
Aerotech M1297W in a 6400 n/s case with 1 spacer
Expected Altitude - 5700
Actual Altitude - 5119
Speed: 431mph/633 fps
Two Previous Test flights completed on L1520T

Google Drive Link to Build Package: https://drive.google.com/file/d/1nKe9zqXEcmzT6Is_vL3PFLidUjQ3_sYt/view?usp=sharing

Video Clip of the launch:

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Cert Flight went great on 12.19.21 at MDRA/Higgs Field.

Rocket was a Prometheus 6 by Composite Warehouse - the first of the Prometheus line after I reached out to them to do a custom kit for me for this project.

6" Diameter by 128"
75mm Motor-mount
50.5lbs on the Pad RTF
Aerotech M1297W in a 6400 n/s case with 1 spacer
Expected Altitude - 5700
Actual Altitude - 5119
Speed: 431mph/633 fps
Two Previous Test flights completed on L1520T

Google Drive Link to Build Package:

Video Clip of the launch:

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What size ejection charges did you end up using on this monster?
 
Since this thread stopped being a sticky, I'll add my L3 doc to bump it back. I've found this thread to be incredibly helpful and would love to see it regain "sticky" status.

Everything on my L3 project is pretty much wrapped up other than the cert flight itself. Hoping to fly it at MWP in late October. My TAP, Chris Pearson and Steve Eves, were incredible helps on this one.
 

Attachments

  • ab_L3_report_preCertFlight.pdf
    6 MB · Views: 12
Since this thread stopped being a sticky, I'll add my L3 doc to bump it back. I've found this thread to be incredibly helpful and would love to see it regain "sticky" status.

Everything on my L3 project is pretty much wrapped up other than the cert flight itself. Hoping to fly it at MWP in late October. My TAP, Chris Pearson and Steve Eves, were incredible helps on this one.
If I make it to MWP this fall, I hope to see your flight.
Best of luck to ya!
 
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