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Welcome to IndyRockets

This site was created as a resource for anyone interested in hobby rocketry in central Indiana.

This is also the source for information on the Rocketeers Of Central Indiana (ROCI), Section #625 of The National Association of Rocketry (NAR). Feel free to check here for information about ROCIs launch events. The launch events are conducted throughout the warmer months at the Academy of Model Aeronautics' Headquarters and Aeromodeling Center in Muncie, Indiana. This facility is the finest flying field in the state and ROCI is proud to be the exclusive host of the rocketry events held there. ROCI is not currently conducting meetings as we have lost our meeting place.

Registered users of this site are free to visit our forum pages to discuss rocketry topics and share information with other members.

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Landing Zone (LZ) Prediction for AMA 8/16/20 2 months 6 days ago #2947

I was rather proud of this - used the met data and a google earth pic of the AMA and it predicted the LZ area for the launch pretty well. The MDRM landed a little short of the garage at the Event HQ on the East side of AMA (H115DM-6). The "Fluorescent Zucchini" on a G125T-8 went just a little bit further : ) but same area. G125 in a stubby 24oz rocket was almost a triple 9 haha.

After hearing from Mark and John Kelley about the NSL and power line issue a while back I think this may be a good practice prior to each launch day at AMA.

If you have Rocksim and a file for your model, and it is reasonably accurate, you can take the descent rate and wind speed and get a "rough" landing area. MDRM was predicted for 1356' downrange on the H118 and based on my feet, it was pretty close.

See link to Google drive for pic with Compass rose. I also added an attachment but not sure that is working.

drive.google.com/file/d/1N7V2WkTO1bTIadP...3Ej/view?usp=sharing
Cheers / Robert
The following user(s) said Thank You: Jim Stum

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Landing Zone (LZ) Prediction for AMA 8/16/20 2 months 5 hours ago #2958

It's comforting to have your sims agree with the actual data. (A famous statistician once said, "All models are wrong, but some are useful.")
I had found a NOAA site for predicting upper level wind directions and speeds vs just surface wind. I have run these before launches to see if a higher altitude flight would risk going towards the power lines.

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Landing Zone (LZ) Prediction for AMA 8/16/20 1 month 4 weeks ago #2965

Allan: Can you share a link to the page that showed the winds aloft?

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Landing Zone (LZ) Prediction for AMA 8/16/20 1 month 4 weeks ago #2966

Attached is a link to a Word doc I created that explains where the site is and how to use it along with some help with the interpretation. Let me know if you have questions. www.dropbox.com/s/f7mgar2m8cfuou1/Winds%20Aloft.docx?dl=0
The following user(s) said Thank You: John Kelley

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