Wind Load Calculator for Ships

(3 customer reviews)




What does this Excel App do?

This Excel app helps the user calculate the complete wind load for a vessel with cargo/topsides

Windload is given by:
FW = K * ρair*VR^2*(AL sin^2θ + AT cos^2θ)/cos(α – θ)**
ρair = Density of Air, VR = Wind Speed relative to vessel , AT = Cargo + Hull Transverse area exposed to head wind (and factored for Height and Shape)
AL = Cargo + Hull Transverse area exposed to beam wind (and factored for Height and Shape), α = true wind angle, θ = relative wind angle

The windage areas are factored for the shape and height coefficients derived from ABS MODU Rules (see reference)
Upto 15 Cargo/Topside/Superstructure items can be added
The height coefficients for different zones are automatically calculated by the app
The windage area of the hull is calculated considering it as a rectangular box

How to use this App 
The user has to provide all the inputs highlighted in blue.
The user is asked for some dimensions, draft and shape coefficient of the Vessel, along with wind direction and speed
For Cargo/Topside/Superstructure, the dimensions and shape coefficients are to be provided
For shape coefficients, Table as per ABS MODU Rules has been provided

Shielding effects have been neglected
Hull and cargo/superstructures are considered as box structures for windage area calculation.

1. ABS Rules for Building and Classing Mobile Offshore Drilling Units, 2019, C 3-1-2/1.3.2
2. Principles of Naval Architecture (PNA), Vol 2, Sec 5.2

Additional information

License Type

3 reviews for Wind Load Calculator for Ships

Powered byCusRev
Based on 3 reviews
5 star
4 star
3 star
2 star
1 star
  1. Thomas Böcker (verified owner)

    works good

  2. Yash (verified owner)

    Surely a good one

  3. ATHUL KRISHNA M R (verified owner)

    Excellent product. Nice working experience

Only logged in customers who have purchased this product may leave a review.

Please visit our FAQ page for all questions on usage of our products. For any issues, please write to

FAQs on Products

Important: Our excel-based products work only on Windows machines, and not on Macs

System Requirements:

MS Excel 2013 and up

Windows 7 and up