Leaderboard

you'd be better off using an barometer along with the gps. i made one once using a gps module and a barometer, a small display screen, and a raspberry pi zero, but couldn't get them both to read at the same time. the forums i was looking at when i put it together suggested using gps also to check the accuracy. getting the raw gps data works fine, and it works with just the barometer, but not both together yet. i had to stop when shit went bad a few months ago. when i get some time, i will post some links that i used to help you with yours. i used the same battery you have and it seemed to do fine. when i get it working this winter, i plan on testing it in the air as a wrist mounted altimeter. as a chest mount it would be great. i was going for a sub $75 altimeter/gps/logbook. if that works out, i was going to add bluetooth and mate it with the pi i am putting in a helmet over the winter, but that may take a backseat also, a little ambitious anyway.

Betsy died at her home in Falls Church Va. Another pioneer for Women in Skydiving. Member of the US Team in Style and Accuracy and enjoyed RW with friends, she didn’t care to jump with prima donnas. National Director on the USPA BOD. A heart breaker on the DZ’s.

The US Federal Aviation Administration just announced a new Airworthiness Directive affecting thousands of single-engined Cessnas. The AD - effective 12 November 2020 - covers Cessna 172, 182, 206, 207 and 210 airplanes. It requires inspecting the lower forward area of the cabin door frame where the wing strut attaches. A&Ps are supposed to inspect for fatigue cracks in that area. The FAA specified an inspection interval of every 36 months or 1,000 hours in service. This should be nothing new to long-time Cessna owners because it repeats two earlier Cessna Single Engine Service Bulletins: CSEB93-5 (Sept 8, 1995) and CSEB96-19 (Dec 29, 1995). If cracks are found, the area must be reinforced by a Cessna repair service kit. FAA estimates cost of compliance at US$1,900. Once the CRSK is installed, the inspection schedule reverts to the usual 50 and 100 hour intervals along with annual inspections.

A quick project for tracking basic data during flight. This is a garage project I made out of own curiosity. Not tested in flight yet, if you decide to do it you're doing it at your own risk. There are advanced solutions on the market like Dekunu One or Aon X2 and if you can afford them I encourage you to use professionally made equipment. You'd need: * Car GPS speedometer (I used this one because its shape and size are already almost snag-free: https://www.aliexpress.com/item/4000265066382.html * Powerbank (with least capacity and smallest size possible - in the prototype this one was used: https://www.aliexpress.com/item/32945597181.html ) * 850 mAh battery (ideally 2000 mAh, but unlikely they'll fit inside the case) * Small switch Assembly is pretty straightforward: unsolder USB ports on both GPS and powerbank, solder switch and battery. Additionally I flipped the capacitor (it's under white tape on the first photo) - put it on the opposite site of the board to give some room for powerbank's charger. The device is mounted on a rig using velcro strap with a loop. So far I tested it on the ground on a bike and the speed is pretty accurate - +/- 1 km/h to what smartphone GPS shows Even with 850 mAh battery the device help up for around 8-10 hours (screen constantly on) which is quite impressed actually. Talking about the battery - attentive reader might notice that it got swollen - probably because powerbank's changer is for 2000 mAh, while battery is 850 mAh. That's a critical flaw because swollen battery has high risk of explosion as pressure changes during climb to the altitude. If I ever decide to use it for actual tests, the batteries will be replaced with non-chargeable lithium batteries just like in audibles (powerbank's module would still nicely convert that into a constant 5V supply). Meanwhile I'm doing some more research to find safe chargeable batteries. Now, what this thing can do: * Display current ground speed (both metric and those other, inferior units). Speed alarm can be set at as high as 200 km/h, so I'd assume device can measure at lease that much * Display one of 8 directions ( N/NE/E/SE and so on) - yeah, it's pretty basic, but better than nothing * Display distance covered, accuracy 100m * Display few other stats, but those are useless for WS flying * Oh, yeah, you can change colors Again, this is a garage project. I'm only sharing the fruits of my curiosity and taking no responsibility for what you might do with it.

I'm an old-timer who uses an Altimaster II analog. Thinking of getting a new digital Altitron. Any feedback at all on this particular unit is appreciated. Also would like to get comments on digital vs. analog when you're in free fall at break off.

Can you hear the alarm in freefall if you are wearing it on your wrist

All of them.

It's held together with a piece of break cord and a bungee? WTF, were they out of packing bands? They put a half knee in my starboard rudder 6-8 years back and it's been talking to me again. I was wondering what was next, now I know. I'd say your advice to not wait once you start getting slowed down is spot on. You gotta keep movin', 'cause if you don't the birds will get you. Glad you're back and well.

Another of my early idols in the sport. Sigh.... R.I.P.

Well, the Kraken was probably supposed to be Lindsey Graham's plan to have counties with more mismatched signatures entirely thrown out (counties with more mail-in ballots will naturally have more mismatched signatures). Or maybe the Wisconsin plan to have the legislatures direct their states' electors to vote for Trump regardless. Or maybe who-know-what-other plan that involves disenfranchising people who voted according to the states' rules, just not the way that some people wanted them to vote. Yes, 71 million voted for Trump. But 75 million voted for Biden. And kind of like in 2000 and 2016, when it was the right minority that voted for the Republican, this time it was the right majority that voted for the Democrat. Suck it up -- you're not a loser, you just lost your turn. Wendy P.

just messaged you!

Do you?

I'm new but I got a pair of these because they seem like the go-to and I wasn't disappointed. I wear them every jump and in the tunnel. White to get those points.

Quick update: battery has been replaced with other, more reliable and I was able to test it today. Long story short - the unit didn't work as well as I'd expected: it was perfectly fine during the climb, showing both ground speed and distance, but during the jump when altitude drops quickly it just stops processing all the readings. Under the canopy it works again, but the moment you do any kind of dive it stops reading again for a second. Well, it wasn't designed for skydiving after all, so nothing to complain about. At least I was able to measure my ground speed under the canopy, so it could be used for some basic canopy piloting drills, but nothing more than that. P.S. Turns out the plane travels in circles roughly 70 km at ~190km/h to climb to a 4k