The Titan TN-366 series of machines are (4) very specialty designed machines for the sail making industry.   These include:
TN-366-32 (working space: 320 mm x 175 mm)
TN-366-50 (working space: 500 mm x 275 mm)
TN-366-76-12 (working space: 760 mm x 175 mm)
TN-366-76-12HA (working space: 760 mm x 275 mm)
 
All four models are very similar and come with extra cams to allow you to stitch standard (2) step zigzag, (2) step zigzag and (4) step zigzag.   These machines have a needle bar stroke of 66 mm and are both equipped with a large barrel type shuttle hook which can allow the machine to use very heavy thread, up to and including Tex 277.
 
These models are all using a cam driven needle bar take up and a parallel needle bar drive that reinforces the needle bar strength when driving through thicker materials.
 
The presser foot can lift to 20 mm and with a maximum stitch width of 12 mm, and a maximum stitch length of up to 10 mm, this machine is truly a beast of a machine when it comes to sail making and repairs. 
 
All four models are equipped with pneumatic (air) foot lifter and reverse, which means to utilize these features, you need to have an air supply or compressor for this machine.   (purchased separately)
 
The TN-366-76-12 and the TN-366-76-12HA are both equipped with a rear puller which will ensure the material is feed evenly and smoothly.  These models also have a needle cooler that allows the operator to work with very thick materials without the needle overheating and breaking the thread due to melting. 
 
These machines are recommended for sails making and repairing includes cruising sails, racing sails, storm sails, tents, carpets, parachutes, tarpaulins, marquees, shade sails, mattress, truck covers, sofas and large size furniture.