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Tbh, it’s such a simple and cheap device, why would you not have it?
I’m frankly rather surprised that airplanes don’t have more of them (for redundancy). They might have been complicated tech in the 70s, but today it’s a non-issue.
Tbh, it’s such a simple and cheap device, why would you not have it?
I’m frankly rather surprised that airplanes don’t have more of them (for redundancy). They might have been complicated tech in the 70s, but today it’s a non-issue.