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[Jonty]

A paddle hydroplane! I bought this plan through Ebay out of sheer curiosity. I believe the designer was Peter Holland, and the intended power source a DC Dart 0.5cc diesel engine. An interesting concept; I suppose a brushless inrunner might work, though it's hard to see how to apply a guidance system.

[SteamboatPhil]

A club member of mine built one about 40 years ago, funniest thing I have ever seen, mind you these are modern times.
Please keep us updated

[Subculture]

I remember Peter Holland operating his R/C robots in the foyer at the Wembley Model Engineering Exhibitions back in the early 1980's. He used to keep the transmitter behind his back so it gave the impression the robot was acting autonomously.

Perhaps consider making the paddle wheel steerable like an outboard motor to give some steering.

[KitS]

Fascinating!


How long is it?

[Jonty]

Approx. 42cm or 16", assuming that the plan I have (a photocopy) is actually full-size.

[tony52]

Originally published in Vic Smeed's 1957 book, Model Maker Manual. Sonic Sippi was drawn half size at 21cm, which shows you 42cm to be correct.

[tony52]

Attached is the accompanying article from Vic Smeed's book.

[Jonty]

Brilliant! Thank you.

[SteamboatPhil]

Spooky I have just found the same article in Vic s book

[Circlip]

You shuda shouted Jonty, much better ORIGINAL copy was/is available for FREE. 


 Regards  Ian.

[KitS]

Thanks for the further info. What a fascinating machine, I'm sorely tempted to have a go at one.