Originally Posted by
aviatorhi
The drag, at high speeds, on the nose gear assembly (with the gravel deflector) is such that the nose gear will not extend but the main gear will.
Perhaps but no pilot following the aircraft limitations will have experienced this as the max gear speed is 180 knots. In other words, all three gear always extend at the same time during normal operations on a gravel equipped 737. Sounds like a way to damage the nosegear deflector.