| Model # | Length | Ship Weight |
| NTWM-3 | 54" | 67 lbs. |
| NTWM-4 | 72" | 85 lbs. |
| NTWM-5 | 90" | 110 lbs. |
| NTWM-6 | 108" | 130 lbs. |
| NTWM-7 | 126" | 148 lbs. |
| NTWM-8 | 144" | 166 lbs. |
| NTWM-9 | 162" | 190 lbs. |
| NTWM-10 | 180" | 210 lbs. |
| NTWM-12 | 216" | 248 lbs. |
| NTWM-14 | 252" | 291 lbs. |
| NTWM-15 | 270" | 310 lbs. |
| NTWM-16 | 288" | 328 lbs. |
| NTWM-18 | 324" | 375 lbs. |
| NTWM-20 | 360" | 410 lbs. |
| NTWM-25 | 450" | 514 lbs. |
| NTWM-30 | 540" | 615 lbs. |