Pop Pop Putt Putt boat Shortened The secret of the boiled water inside, 2 days ago   16:52

I haven't built one of these since 2015 and I had forgotten how satisfying they are to watch when you get them going.
Full length video https://ai-tube.com/videoai/MnIv0N5omEb
Daryl Foster's last video https://ai-tube.com/videoai/1lLIUsokX9t

My Channels
GrandadIsAnOldMan https://www.youtube.com/c/GrandadIsAnOldMan
GrandadsOtherChannel https://www.youtube.com/c/GrandadsOtherChannel
Put a rubber band on it https://ai-tube.com/userchannel/HPuGggelmcf7ORxz-kx_pXHN
You can help keep my channels running with a dollar for coffee and cakes at https://www.patreon.com/GrandadIsAnOldMan
If you don't want to use Patreon you can buy me a coffee here instead http://ko-fi.com/grandadisanoldman
Find me

Main Components
Copper or brass tube - this one looks like 6mm diameter
Lip Balm container
Tea light - at least 4
Aluminium tray

Some history on Pop Pop boats you look at this Wikipedia link on the subject http://en.wikipedia.org/wiki/Pop_pop_boat they have been around since at least 1891 when a patent was filed by a Frenchman named Thomas Piot.

Water in the boiler is turned to steam. The steam has a greater volume than the water so it pushes out of the boiler and down the tube. In the tube it cools, condenses and contracts so it is drawn back into the boiler and the process repeats. The action of the steam pushing into the tube pushes the existing water in the tube out the back and that drives the boat forwards. The steam condensing and contracting draws water back into the tube ready for the next push.
If your next question is "why doesn't the boat oscillate backwards and forwards due to this push-pull effect?" try blowing a candle out and then try sucking a candle out and you will see the blow is fairly directional but the suck is not.

Daryl Foster devotes his channel to Putt Putt boats and here is the first one on his channel also back in 2009 https://ai-tube.com/videoai/4Gmujsvg6rH
Pop Pop boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB2M0m754LkqMXQFwFRAS3HK
RC Pop Pop boats https://www.youtube.com/playlist?list=PL-by_jO_6em9N_D_NRdDPmEaSxPDNzbZr
Toy Boats playlist https://www.youtube.com/playlist?list=PLA5a2xPRSrB24vUS9E8zkSgjZysEL00zr

Here is the link to DaveHax tutorial which I found excellent https://ai-tube.com/videoai/0xv9Xgn8t14

sciencetoymaker has a full step by step tutorial series on putt putt (pop pop) boats starting in January 2009 with episode 1 here https://ai-tube.com/videoai/2MS0zwehNkZ

Here is a good video on tweaking the speed of these boats https://ai-tube.com/videoai/C2foFX79r4t

This link that explains the general annealing process without getting too technical http://steamshed.com/annealing%20process.html and here is a YouTube video on the subject by George Goehl https://ai-tube.com/videoai/3wFm11ym8ZN

#GrandadIsAnOldMan #GrandadsOtherChannel

Comments 18 Comments

Daniel thorpe
Great job👍👍 maybe one day try to make a pop pop boat with a rudder that's steered by a servo.
OH MY GOD! I have the same flux that my dad gave me. That is such a coincidence. I use it for electronic soldering though.
anthony belcher
Great idea 💡
Nice video. I have a putt putt boat kit someplace, just never tried using it yet. Looks interesting to try to make from scratch. Wonder what the largest one ever made is like ? Off to Google.....
Misael Fontanez
This is the most quiet one I've heard of nice one!
Well done grandad! I dare say this is your best pop-pop boat as of yet!
Tried to make one before, just couldn’t get the boiler right. Nice video
sail on. sail on forever on the bathtub sea. this is cool.
Add Reply

The secret of the boiled water inside, Pop Pop Putt Putt boat Shortened 2 days ago   02:36

How much hot water remains in the operating boiler?
The capacity of this boiler is about 6 Gr.
It looks that internal water is boiled and pushed out and hot water does not remain during continuous running.