And while Gee was accurate enough for the purpose , taking a fix required lengthy manual calculation by the operator .
However , for these tests the G4B gyrocompass proved far too inaccurate as it required constant correction for drift .
While Gee was accurate enough for the purpose , taking a fix required lengthy manual calculation by the operator .
However , for these tests the G4B gyrocompass proved far too inaccurate as it required constant correction for drift .