There is a 'master list' of hobby parachute vendors and their parachute's drag coefficient below the calculator for you to reference if the drag coefficient is unknown.

Descent Rate and Drift Calculator

hobby_parachute_cd_master_list.pdf
File Size:	62 kb
File Type:	pdf

Download File

---

Disclaimer and Intellectual Property Notice Disclaimer:
​The information provided by this calculator is for general informational and educational purposes only. All information on the site is provided in good faith, however, we make no representation or warranty of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability, or completeness of any information produced by this calculator. The results are estimative and should not be relied upon for professional or critical purposes. Use of this calculator and any findings or results obtained is solely at your own risk. We shall not be held liable for any damages or losses arising from your use of or reliance on the calculator.
 Intellectual Property Notice:
This calculator and its content, including all algorithms, code, text, and graphics, are the proprietary property of Valkyrie Recovery Systems Inc and are protected under copyright laws. Unauthorized use, reproduction, or distribution of this calculator or its content is strictly prohibited and may result in legal action.