The Raven altimeter…

[greywolves]

Adrain, Thanks for all the hands on information for the Raven.

So, is the difference between the choices, 250 G singal axis, or 70 G dual axis?

besides 180 G’s?

Wow, is that even possible 250 G’s model rocket?

Thanks

David

[AdrianParticipant]

The 70G version has a lateral accel axis also. I recommend the 70G version because the axial accel has better resolution and can be calibrated more accurately. The lateral G information is sometimes interesting also, for things like seeing how many times your rocket bounced around in the launch rail, and how long it was oscillating from weathercocking.

You have to try pretty hard in order to get a rocket to go past 70 Gs under thrust. For example, my I600 shots last summer took off pretty fast, but they had about 60 Gs.
http://www.youtube.com/watch?v=LLcz4YLPTHY
The most I have seen is 125 Gs on a cut-down thunderbolt 38 flying an H999. An I1200 in a light rocket could exceed 200 Gs, though. So get a 250G version if you’re going for a max acceleration flight on a Warp-9 or maybe a CTI Vmax load, but otherwise get the 70G version.

Also, deployment charges, especially in small rockets, can make your av-bay go past 80 Gs, but that’s o.k. The accels of both types can take 1000+Gs without damage.

[Author]

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