Although the Logan 11" lathe (and the 12") used the same bed as the 10-inch - and the regular model of both sizes had the same between-centres' capacity of  24" - the long-bed version of the 11-inch was able to accept an additional 6" in length, giving a total (and very useful) capacity of 36".
Fitted as standard with both a screwcutting gearbox and power cross feed the lathe was unusual in having, for so substantial a machine, the option to be supplied for bench (or leg) mounting with a separate all-V-belt drive, 16-speed, rubber-mounted countershaft unit with its spindle running on ball bearings. Because the countershaft was necessarily heavy, it was supported by on what the makers described as a patented three-point suspension, part of which included a cast-iron support bracket which, on the stand-mounted machines, reached right down to the floor. As on the 10" lathes, the belt tension between lathe and countershaft was relaxed by an automatic coupling when the headstock-guard cover was raised
As a better option the lathe could also be supplied fitted to a neat, underdrive cabinet stand that held a 16-speed, ball-bearing countershaft with three belt runs to transmit power to the headstock spindle. The first belt, from the two-step motor pulley, was arranged in a South Bend-like manner with a double-step V pulley on the motor transmitting power via a V belt to a two-step flat pulley on the first shaft.. A standard V belt and pulley arrangement then provided a choice of 4 (rather close) ratios to an upper countershaft - and from there a double V belt took the drive to a pulley outboard of the left-hand headstock spindle bearing.
Whilst the headstock assembly looked, externally, to be almost identical to that used on the 10" lathe it appears to have been fitted with the much more substantial, hardened and ground spindle from the larger lathes of the range. The bore of 13/8" allowed a collet capacity of 1" and an increase in the size of the spindle nose thread to 2.25"  x 8 t.p.i. At this sort of size and capacity, an L-00 series or Camlock spindle nose fitting would have been preferred, but that extra-cost option was restricted to the 14" lathe.
Like smaller Logans of the period the spindle, ran on pre-loaded, grease-sealed precision ball bearings - but, instead of the arrangement used on the 10-inch lathe (which had a double-row bearing at the front and a single row at the rear) the 11-inch lathe employed a single-row bearing in both locations. An adaptor was supplied to sleeve the spindle nose from a No. 3 Morse taper to a No. 2 for regular work.
A 0.75 h.p. ball-bearing motor (of unspecified phase) through drove the spindle through a range of 16 speeds, the bench and simple-stand models having 50, 62, 75, 90, 145, 170, 200 and 235 rpm in backgear and 325, 385, 470, 535, 885, 1020, 1230 and 1430 rpm. A slightly different range was specified for the cabinet models: 38, 53, 69, 96, 82, 112, 148 and 205 r.p.m. in backgear and 228, 318, 414, 490, 576, 676, 888 and 1230 r.p.m.  in direct drive.
A full range of equipment to convert the lathes into production machines was available and included six-station capstan and lever-operated turret assemblies, lever and screw-feed cut-off slides with twin toolposts and quick-action collet closers.
The lightest 11" lathe for bench mounting weighed 505 lbs whilst the heaviest, on the cabinet stand, turned the scales at 890 lbs.