CSC wireless upgrades

I've been tinkering with the Chicagoland Skydiving Center network in preparation for the 2014 Independence Boogie. This is generally a large event, and this year is no exception: The vast majority of the people on the network are guests on wifi. CSC can be broken down into three domains: The…

Performance Designs on wing loadings

I just noticed something odd. Head to the PD Velocity page. Follow the Velocity Flight Characteristics link. You'll see some wing loading recommendations: Size does matter: … [a Velocity] can be loaded as lightly as 1.0 pounds per square foot … So what size is best for you? … as long as…

Skydiving season is on

My 2014 skydiving season is off to a great start: I made jumps on both Saturday and Sunday! This puts me way ahead of last year, when the weather was so poor we didn't have a two-day weekend until July. I made a video to celebrate the occasion: Still nothing…

Free Fall Suits: malice or incompetence?

Free Fall Suits sells made-to-order jumpsuits, wingsuits, camera jackets, etc. -- everything a skydiver might want. Note that I said "sells", not "makes". TL;DR I ordered and paid for a freefly suit and camera jacket from Chris Kotscha at Freefall Suits on September 21, 2013. My five delivery dates…

avr-gcc on Travis-CI

I wanted to build an Atmel AVR project on Travis-CI. This wasn't hard at all: Ubuntu ships a usable gcc-avr package. I uploaded a sample project as a demonstration. Here's the .travis.yml: --- language: c before_install: - sudo apt-get update -qq install: - sudo apt-get install -qq gcc-avr…

Exporting from the Wayback Machine

One of my little projects has been trying to resurrect a corner of web history. It seems like a normal enough story: there used to be a website, it went away, the guy who made it has no backups. Of course, the Wayback Machine has copies of nearly everything, and…