LPLarge Planes

Calculated collector reference

Roc1:400 model size

Full-size manufacturer and operator measurements divided by 400, with a separate planning allowance for the shelf or display case.

Calculation checked 2026-09-19 · Aircraft source record verified 9 September 2026
Length18.3 cm73 m full-size
Wingspan29.3 cm117.35 m full-size
Aircraft height3.8 cm15.24 m full-size
10% horizontal allowance32.3 × 20.1 cmPlanning envelope, not a guaranteed case size

Transparent calculation

How the dimensions were calculated

The Roc is 73 metres long, 117.35 metres across and 15.24 metres high in the sourced aircraft record. We convert each figure to centimetres, then divide it by 400. Nothing is inferred from a retailer's box photograph.

73 m × 100 ÷ 400 = 18.3 cm model length

Same aircraft, three scales

Compare the shelf footprint

View all 1:400 aircraft →
1:20036.5 cm long

58.7 cm wingspan

Open size page →
1:40018.3 cm long

29.3 cm wingspan

Current scale
1:50014.6 cm long

23.5 cm wingspan

Open size page →

Optional shopping step

Compare Roc models at 1:400

The search is aircraft- and scale-specific. Confirm the variant, stated scale, material, stand, seller and finished dimensions on the listing; availability and prices can change.

As an Amazon Associate I earn from qualifying purchases. This page calculates dimensions; it does not claim that a particular model is available, accurate or in stock.

Aircraft evidence

Sources behind the full-size dimensions

Stratolaunch directly publishes the 385-foot span, 1.3-million-pound takeoff weight and six-engine configuration. Other dimensional figures are identified as published programme specifications.

  1. Stratolaunch Roc vehicle page

Roc model-size questions

How large is a 1:400 Roc model?

Approximately 18.3 cm long, 29.3 cm wide and 3.8 cm high before allowing for a stand or manufacturing differences.

What shelf space should I allow?

A simple ten-percent horizontal allowance is about 32.3 by 20.1 cm. Verify the listing's finished dimensions and stand footprint before buying a case or model.