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This is a Tailspin Heavy Lift lift plan for replacing blade B on WTG-04 at Quellmoor Ridge Wind Farm. It covers the lift window, responsible persons, crane and rigging data, weather limits, exclusion zone, ground bearing pressure, crane set-up, lift sequence, and sign-off.
Key facts
- The job is the WTG-04 rotor blade B replacement, described as a single blade lift.1
- The lift window is from 2026-09-08 to 2026-09-10 and is daylight only.1
- Bram Okkerse of Tailspin Heavy Lift is the appointed person, and Dario Penwarden of Contoso Renewables is the client supervisor.1
- The main crane is a 600 t crawler crane, fleet number TS-600C-02, with a 102 m main boom.1
- The assist crane is a 100 t mobile crane used for tailing the blade root.1
- The blade is 57.5 m long and 14.6 t; the blade yoke is 3.9 t; the rigging is 0.6 t; and the total hook load is 19.1 t.1
- The lift radius is 26 m, capacity at radius is 31.0 t, utilisation is 62 %, and hook height is 96 m.1
- The maximum 10-minute mean wind speed at hub height is 8 m/s.1
- The maximum gust is 11 m/s; no lift is allowed in fog with visibility below 300 m, lightning within 15 km, or icing, and wind is read at the WTG-04 nacelle anemometer and boom tip anemometer.1
- The exclusion zone radius is 150 m around WTG-04 during the lift.1
- Two 120 m tag lines are fitted on the blade, and the site gate is closed by the banksman.1
- Ground bearing pressure under the crane mats is 180 kN/m2, with an allowable value of 250 kN/m2.1
- Before lifting, the sequence requires a pre-lift meeting and PTW signed by both parties.2
- The rotor is locked with blade B pointing down and the pitch system isolated.2
- The blade yoke is fitted and load tested at 0.5 m above the laydown area.2
- Blade B is unbolted and lowered with both tag lines manned.2
- The new blade is lifted, bolted, and torqued according to a Litware instruction.2
- The exclusion zone may be released only by the appointed person.2
- The plan was prepared by Bram Okkerse as Appointed Person and approved by Dario Penwarden as O&M Supervisor.2
Contents
Cover and job details
The document is titled "LIFT PLAN LP-2026-009" and is marked as a two-page plan.12
The front page identifies Tailspin Heavy Lift.1 The client, job, lift window, plan date, appointed person, and client supervisor are captured in the job-details table.1
Table t01 · p. 1
| Row | Client: | Contoso Renewables - Quellmoor Ridge Wind Farm |
|---|---|---|
| 2 | Job: | WTG-04 rotor blade B replacement (single blade lift) |
| 3 | Lift window: | 2026-09-08 to 2026-09-10, daylight only |
| 4 | Plan date: | 2026-08-19 |
| 5 | Appointed person: | Bram Okkerse, Tailspin Heavy Lift |
| 6 | Client supervisor: | Dario Penwarden, Contoso Renewables |
Agents can query this table as t01 with the query_table tool.
Crane and rigging
The crane and rigging table gives the main crane, assist crane, blade, blade yoke, rigging, total hook load, lift radius and utilisation, and hook height.1
Table t02 · p. 1
| Row | 1. Crane and rigging | 1. Crane and rigging | 1. Crane and rigging |
|---|---|---|---|
| 2 | Main crane: | 600 t crawler crane, fleet no. TS-600C-02, 102 m main boom | 600 t crawler crane, fleet no. TS-600C-02, 102 m main boom |
| 3 | Assist crane: | 100 t mobile crane (tailing the blade root) | 100 t mobile crane (tailing the blade root) |
| 4 | Blade: | 57.5 m, 14.6 t | |
| 5 | Blade yoke: | 3.9 t | |
| 6 | Rigging: | 0.6 t | |
| 7 | Total hook load: | 19.1 t | |
| 8 | Radius: | 26 m capacity at radius 31.0 t | utilisation 62 % |
| 9 | Hook height: | 96 m |
Agents can query this table as t02 with the query_table tool.
Weather limits
The maximum 10-minute mean wind speed at hub height is 8 m/s.1
The maximum gust is 11 m/s, and lifting is not allowed in fog with visibility below 300 m, with lightning within 15 km, or with icing.1 Wind is read at the WTG-04 nacelle anemometer and at the boom tip anemometer.1
Exclusion zone
The exclusion zone is a 150 m radius around WTG-04 during the lift.1 Two 120 m tag lines are on the blade, and the site gate is closed by the banksman.1
Ground
Ground bearing pressure under the crane mats is stated as 180 kN/m2, with an allowable pressure of 250 kN/m2.1
Crane set-up plan view
The plan-view labels show an exclusion zone with R = 150 m, prevailing wind from SW, and a WTG-04 tower.2
The same plan-view labels identify an assist crane 100 t, crane TS-600C-02, a radius of R 26 m, a blade laydown area, and a 50 m scale.2
Sequence
- Hold the pre-lift meeting and have the PTW signed by both parties.2
- Lock the rotor with blade B pointing down and isolate the pitch system.2
- Fit the blade yoke and perform the load test at 0.5 m above the laydown area.2
- Unbolt and lower blade B with both tag lines manned.2
- Lift, bolt, and torque the new blade per Litware instruction.2
- Release the exclusion zone only by the appointed person.2
Sign-off
The plan is prepared by Bram Okkerse, Appointed Person, and the adjacent date is 19/08/26.2
The plan is approved by Dario Penwarden, O&M Supervisor, and the adjacent date is 21/08/26.2
Figures
- Figure f01 (p. 2): Generated description: A simple site-plan diagram shows a dashed circular exclusion zone labeled “R = 150 m” with an arrow indicating “prevailing wind from SW.” Inside the circle are labeled rectangular areas for an “assist crane 100 t,” a “crane TS-600C-02” near a marked “WTG-04 tower” point with “R 26 m,” and a “blade laydown area” near the bottom. A 50 m scale bar appears at the lower left.3
- Figure f02 (p. 2): Generated description: A small black zigzag line graph or waveform runs horizontally across a white background, with several peaks and dips and a sharper drop near the right side before rising again. No axes, labels, or units are visible.3
- Figure f03 (p. 2): Generated description: A small black zigzag line graph on a white background, rising and falling with several peaks and dips across the width of the image. The line is thick and hand-drawn-looking, with no visible axes, labels, or numeric values.3
Related
- Assets: Quellmoor Ridge Wind Farm, WTG-04
- Component: rotor blade
- Product: TS-600C
- Organisations: Contoso Renewables, Litware Wind Systems, Tailspin Heavy Lift
- Topics: Blades, pitch bearings and main-component lifts, Safety, isolation and work at height
Sources
Footnotes
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Lift Plan LP-2026-009 - WTG-04 Blade B Replacement — p. 1 · OCR ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13 ↩14 ↩15 ↩16 ↩17 ↩18 ↩19 ↩20 ↩21 ↩22
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Lift Plan LP-2026-009 - WTG-04 Blade B Replacement — p. 2 · OCR ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13 ↩14 ↩15 ↩16 ↩17 ↩18
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Lift Plan LP-2026-009 - WTG-04 Blade B Replacement — p. 2 · generated description ↩ ↩2 ↩3
Provenance badgesOCR text recognised from an image; compare it with the imagegenerated description written by a model to describe a figure; not a quote