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>> Home > Boat Building Blogs > HMCS Sackville - WWII Corvette
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HMCS Sackville - WWII Corvette Print Booklet
Author: gordc   Posts: 1   Photos: 7   Subscribers: 1   Views: 244   Responses: 4   |   Most recent posts shown first   (Show oldest first)
HMCS Sackville - WWII Corvette - Posted: 21st Feb 2017
About 25 years ago I started building a Stuart Turner double 10 steam engine and soon after, I decided to build a boat to put it in. The photos show how far I've got.

It's a model of a WWII corvette, HMCS Sackville. The original ship has been restored and is on display in Halifax, Nova Scotia.
I've built it to a scale of 5/16" to the foot in order to have a displacement of roughly 40 pounds, which I figured I would need to accommodate the steam plant. It has an overall length is 65" and a 10" beam. The 5/16" scale also means that I have to make all the fittings for the boat from scratch. I'm working on the 4" gun right now.

I had the hull in the water for the first time last September and discovered that the pitch of the propeller needed increasing and that the boiler couldn't make enough steam to keep the engine running at 600 rpm. The boat just sat there going nowhere.

I've increased the propeller pitch and enlarged the burner orifice on the centre-flue boiler to increase the heat input, so I hope to do better this summer.

Attached Photos - Click To View Large

Response by Dave M on the 22nd Feb 2017
Good sized model. Be good to see the finished model on the water in steam.
Response by RNinMunich on the 24th Feb 2017
EXcellent, real Model Engineering 👍
Not fair though! Your Corvette is 20 cm longer than my Pocket Battleship Graf Spee 😉 of my H class destroyer Hotspur. Looking forward to the video .....
Response by gordc on the 25th Feb 2017
The boiler is 10 inches long and 4 inches in diameter. I designed it using the guidelines in one of Martin Evans' model engineering books. The centre flue is roughly 2 inches in diameter. The boiler volume is just over 1 litre to the top of the gauge glass.

I bought the ceramic burner from Maccsteam. After lighting with gas, I switch to a liquid propane/butane mixture which turns to vapour in the evaporating coil on the outside of the flue.