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1. Just how big does a side mirror need to be?
2. How much base or strut does it really need?
3. If the RAF Spitfire fighter plane of WWII got by with a faired ~4" round mirror on a ~4" thin stalk and flew at ~400mph (apparently with no ill effects), why do we ~70 years later need anything bigger or less streamlined?
Thoughts?
I ask because my old Porsche has "flag" mirrors of clunky angular shape, flat, fat stalks, and housings at least 25% bigger than the mirrors. My Ford van has mirrors copied from Dumbo the elephant. This from companies old enough to know better.
Seems to me a thin stalk of teardrop profile and oriented into the relative wind, blended smoothly into an elliptical shell no bigger than the mirror itself, would be much better. Wouldn't be rocket science to include the tiny remote control motor gizmo and a turn signal.
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