The ladies jackets start at a sleeve length of 22.25, half back of 7 and overall length of 24 for a 30R. Measurements of course increase incrementally for larger sizes. For example, a 36R has a sleeve length of 23.5, half back of 7.75 and overall length of 24.75.
For all sizes, Short results subtraction of 1" from sleeve and 1.5" from overall length.
Long results in additional 1" to sleeve and 1.5" to overall length.