- Sep 6, 2009
- Reaction score
+1 to all this ^Purely anecdotal, but I have never seen a commercial altimeter fail.
I've been failures that are all user induced or could have been eliminated with just a little ground testing...cheap battery, underpowered battery, cheap battery connectors, incorrect programming, poorly secured battery, undersized ejection charges. The list goes on, but the common trend is user error.
Even after some hard landings and water landings, my altimeters continue to work just fine. I always ground test them after such events. They are surprisingly robust devices.
If you don't know the root cause of bad deployments, then you are potentially doing the wrong thing twice with two altimeters. More altimeters = more complexity = more design time = more prep time. Not worth it for my model rockets up to 4" and a couple hundred dollars. Maybe if I build a big, expensive project, I will change my tune.