Further, the replacement of the hub-and-spoke model simply never took place.

A major replacement of 29th Squadron personnel took place in early 1943.

But permanent replacements for the other posts took longer to fill.

This replacement took from the 15th to 18th centuries to complete.

Jackson says finding a replacement has taken longer than expected.

The replacements have not taken part in any of the military or survey operations during the war.

Repairs can usually be done while you wait; replacements take 10 days to two weeks.

Dealers will replace two small parts free of charge; the replacement should take about 90 minutes.

Even for those with urgent need, he said, replacement would take two weeks.

An interim appointment is likely to be made as finding a permanent replacement will take several months.