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btrettel's Nerf blog

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Blog moved to NerfHaven. This blog has moved to NerfHaven and is now titled Nerf Engineering. February 25, 2014 – 9:53 pm. NY Times Magazine Interview. I was interviewed for the New York Times Magazine. About my other toy gun hobby: homemade water guns. I haven’t worked on homemade water guns for several years now, but I’ll eventually get back into the hobby. August 7, 2013 – 10:01 pm. Drag coefficient of Nerf darts. 175 to 3. ...

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Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Blog moved to NerfHaven. This blog has moved to NerfHaven and is now titled Nerf Engineering. February 25, 2014 – 9:53 pm. NY Times Magazine Interview. I was interviewed for the New York Times Magazine. About my other toy gun hobby: homemade water guns. I haven’t worked on homemade water guns for several years now, but I’ll eventually get back into the hobby. August 7, 2013 – 10:01 pm. Drag coefficient of Nerf darts. 175 to 3. ...

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btrettel's Nerf blog | btrettel.nerfers.com Reviews

https://btrettel.nerfers.com

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Blog moved to NerfHaven. This blog has moved to NerfHaven and is now titled Nerf Engineering. February 25, 2014 – 9:53 pm. NY Times Magazine Interview. I was interviewed for the New York Times Magazine. About my other toy gun hobby: homemade water guns. I haven’t worked on homemade water guns for several years now, but I’ll eventually get back into the hobby. August 7, 2013 – 10:01 pm. Drag coefficient of Nerf darts. 175 to 3. ...

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btrettel.nerfers.com

1

» Interior ballistics btrettel's Nerf blog

http://btrettel.nerfers.com/archives/category/interior-ballistics

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Category Archives: Interior ballistics. Notes about valves and flow rates. March 20, 2013 – 10:00 am. Also posted in Math. July 8, 2012 – 10:07 pm. Also posted in Design. Boltsniper’s optimal barrel length formula. June 11, 2011 – 7:42 am. Whenever there is a thread about one of the holy grails of Nerf ballistics, an equation for the barrel length that maximizes performance, someone is bound to mention the results of some tests bol...

2

» Notes about valves and flow rates btrettel's Nerf blog

http://btrettel.nerfers.com/archives/72

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Notes about valves and flow rates. The confusion starts immediately with the definition of the flow rate. Rather than specifying a mass flow rate. Ie, something like g/s), most valve manufacturers instead specify a volumetric flow rate. Ie, something like m. With this in mind, some engineers developed the unit called “ standard cubic feet per minute. 8221; or SCFM for short where the temperature and pressure are supposed to be stan...

3

» Springers btrettel's Nerf blog

http://btrettel.nerfers.com/archives/category/springers

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. July 8, 2012 – 10:07 pm. I’ve started organizing my writings and thoughts on Nerf ballistics into a set of notes (link corrected). Readers of my blog might be interested. For the moment my notes are very rough and incomplete. I’ll update the PDF as I make changes. I’d appreciate any feedback, especially corrections and ideas. Edit (2012-10-02): I’ve removed the […]. Also posted in Design. About btrettel and this blog.

4

» Math btrettel's Nerf blog

http://btrettel.nerfers.com/archives/category/math

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Notes about valves and flow rates. March 20, 2013 – 10:00 am. Also posted in Interior ballistics. July 8, 2012 – 10:07 pm. Also posted in Design. Solving the point mass model of a dart’s trajectory, part two. June 12, 2011 – 8:13 pm. I wrote a technical paper about solving these equations and made some conclusions for design. I have fully solved the flat-fire case given that the x velocity stays above a certain number (and it g...

5

» Improving accuracy and precision btrettel's Nerf blog

http://btrettel.nerfers.com/archives/60

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Improving accuracy and precision. I wrote a long post at NerfHaven on improving accuracy and precision of guns. September 11, 2011 at 3:20 pm. Or leave a trackback: Trackback URL. I’m not entering Ryan’s contest. Goals for the end of 2011 ». Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked *. About btrettel and this blog. CaptainSlug's Nerf projects. Proudly powered by WordPress.

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btrettel.nerfers.com

btrettel's Nerf blog

Btrettel's Nerf blog. Random thoughts about the ballistics of foam darts. Blog moved to NerfHaven. This blog has moved to NerfHaven and is now titled Nerf Engineering. February 25, 2014 – 9:53 pm. NY Times Magazine Interview. I was interviewed for the New York Times Magazine. About my other toy gun hobby: homemade water guns. I haven’t worked on homemade water guns for several years now, but I’ll eventually get back into the hobby. August 7, 2013 – 10:01 pm. Drag coefficient of Nerf darts. 175 to 3. ...

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