"It is good to see a report to the high standard we have come to expect from you."
Richard Dunworth
Navy Technical Bureau
"I can't recommend John Butler Design enough! His team that came out to do the incline test on my vessel were very professional and got the results I was looking for."
Bradley Kerslake
Captain | Spirit Fleet
"John is certainly helping out the Sydney Heritage Fleet in getting the restored John Oxley steam ship back in the water. He has just completed the ships stability calculations."
Glen Rigden
Sydney Heritage Fleet
"John offers a superb service and his attention to detail is second to none. Highly recommended."