Professional
7.8m Extension ladder
Extension ladder, 7.8 m, 28 steps. Crest only tests the steps Franco named: step 13, 14, 15 and 16.
28-step ladder · 4 steps to test
| Step to test | Start | Increment | Stop | Inc hold | Final hold | Reference |
|---|---|---|---|---|---|---|
| Step 13 | 150.0 kg | 25.0 kg | 2697 N (275.0 kg) | 10 s | 60 s | 150–275 kg in 25 kg steps. Increment hold 10 s. Final hold 60 s at 275 kg. |
| Step 14 | 150.0 kg | 25.0 kg | 2697 N (275.0 kg) | 10 s | 60 s | 150–275 kg in 25 kg steps. Increment hold 10 s. Final hold 60 s at 275 kg. |
| Step 15 | 150.0 kg | 25.0 kg | 2697 N (275.0 kg) | 10 s | 60 s | 150–275 kg in 25 kg steps. Increment hold 10 s. Final hold 60 s at 275 kg. |
| Step 16 | 150.0 kg | 25.0 kg | 2697 N (275.0 kg) | 10 s | 60 s | 150–275 kg in 25 kg steps. Increment hold 10 s. Final hold 60 s at 275 kg. |