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REDTC — CHARTS

READ THE
CHART.

Real manufacturer PDFs. 14 cranes. 140 questions. Open the chart. Do not interpolate.

Sling charts
01

OPEN THE PDF

Stays on the left while you answer. Enlarge or pinch-zoom on a phone.

02

ANSWER

Capacity, deductions, radius. Same skill as Fulford LCR.

03

NEVER INTERPOLATE

If the number is between rows, use the worse one.

Flat-top + hammerhead

Horizontal jib. Trolley travel. The common site crane.

Open a crane and the PDF stays beside the question — split screen on desktop, pinch-zoom or enlarge on a phone. Capacity lookups, deductions, and lift planning. Do not interpolate.

KrøllKrøll K630F24 t (4-part) · 80.5 m · 10 questionsPDF
LiebherrLiebherr 470 EC-B 2020,000 kg · 83.0 m · 10 questionsPDF
LiebherrLiebherr 550 EC-H 20 Litronic20,000 kg · 81.5 m · 10 questionsPDF
PeccoPecco SK 18027,600 lbs / 12,500 kg (4-part) · 196 ft / 59.7 m · 10 questionsPDF
PotainPotain MD 160040t (2-fall) / 64t (4-fall) · 80 m · 10 questionsPDF
PotainPotain MDT 1898.8 US tons (17,600 lbs) · 197 ft (60 m) · 10 questionsPDF
TerexTerex CTT 222-1010,000 kg · 65 m · 10 questionsPDF
TerexTerex SK 415-2044,093 lb (20 t) · 263 ft (80 m) · 10 questionsPDF

Luffing jib

Variable angle. Tight urban sites. Keep the swing in.

Open a crane and the PDF stays beside the question — split screen on desktop, pinch-zoom or enlarge on a phone. Capacity lookups, deductions, and lift planning. Do not interpolate.

LiebherrLiebherr 195 HC-LH 6/126,000 kg (1-fall) / 12,000 kg (2-fall) · 55.0 m · 10 questionsPDF
LiebherrLiebherr NC-LH 12-5512 t (4-fall) / 6 t (2-fall) · 55 m · 10 questionsPDF
TerexTerex CTL 260A-1818.00 t · 60 m · 10 questionsPDF
WOLFFWOLFF 355 B US28 t (2-fall) / 14 t (1-fall) · 60 m (197 ft) · 10 questionsPDF

Self-erecting

Folds for the road. Erects itself. Still a load chart.

Open a crane and the PDF stays beside the question — split screen on desktop, pinch-zoom or enlarge on a phone. Capacity lookups, deductions, and lift planning. Do not interpolate.

LiebherrLiebherr 91 K6,000 kg · 48 m · 10 questionsPDF
PotainPotain Igo T 1398,000 kg (0° jib) · 55 m · 10 questionsPDF

Skills you’ll practice

  • Reading capacity at specific radii

  • Finding maximum radius for loads

  • Hook block and rigging deductions

  • Chart modes (LM 1, Load-Plus, Boost)

  • Reeving configurations (2-fall, 4-fall)

  • Level luffing and sway control

  • Metric vs Imperial unit conversions

  • ANSI vs FEM vs EN standards

  • Real-world lift planning

sin. Current version on this site.Work done to CSA Z150 / Z248, WorkSafeBC, BC Crane Safety and the rest — not an endorsement.