Start to Finish: Building Our 50' Skater
11-16-2016 | 04:33 PM
#842
arneson-industries.com
Joined: Jan 2001
Posts: 2,782
Likes: 7
From: California
Blow out tube:
The first time I took the boat to the water I was rushing to get a quick test to make sure the transmissions worked, steering, ect. and to make sure the boat would float.. before it was going to be tied up getting a special coating on the whole boat ( I will post more on this tonight).
I knew I would need blow out tubes for the props but did not have time to make them so when we tried to get on plane we could not get any boost so it had no power. While the coating was being put on the boat I made the blow out tubes. Was not sure what size I would need so I went big, there 4" dia piece of stainless elbow with a collar welded to it for the rubber hose to clamp to then some gussets and flanges welded to the bottom to bolt down on the arneson.
They ended up being too big and once it broke loose the prop would not get enough bite to get on plane so now I have just a 2" dia piece of rubber till we get more testing done.
[ATTACH=CONFIG]561666[/ATTACH][ATTACH=CONFIG]561667[/ATTACH]
[ATTACH=CONFIG]561662[/ATTACH][ATTACH=CONFIG]561663[/ATTACH][ATTACH=CONFIG]561664[/ATTACH][ATTACH=CONFIG]561665[/ATTACH]
The first time I took the boat to the water I was rushing to get a quick test to make sure the transmissions worked, steering, ect. and to make sure the boat would float.. before it was going to be tied up getting a special coating on the whole boat ( I will post more on this tonight).
I knew I would need blow out tubes for the props but did not have time to make them so when we tried to get on plane we could not get any boost so it had no power. While the coating was being put on the boat I made the blow out tubes. Was not sure what size I would need so I went big, there 4" dia piece of stainless elbow with a collar welded to it for the rubber hose to clamp to then some gussets and flanges welded to the bottom to bolt down on the arneson.
They ended up being too big and once it broke loose the prop would not get enough bite to get on plane so now I have just a 2" dia piece of rubber till we get more testing done.
[ATTACH=CONFIG]561666[/ATTACH][ATTACH=CONFIG]561667[/ATTACH]
[ATTACH=CONFIG]561662[/ATTACH][ATTACH=CONFIG]561663[/ATTACH][ATTACH=CONFIG]561664[/ATTACH][ATTACH=CONFIG]561665[/ATTACH]
Cut the end of the tube next to the prop so that it is about 1/2" from the front of the blades.. CAREFUL.. Typically the blades do not all follow the same path.. Spin it by hand and find the most proud blade and set it from there.
__________________
Arneson Surface Drives www.arneson-industries.com
Arneson Surface Drives www.arneson-industries.com
11-16-2016 | 04:46 PM
#843
Mod Squad Enforcer
Joined: Nov 2002
Posts: 12,968
Likes: 811
From: On the way to a PR near you
One of the "other" engines under the plastic.
11-16-2016 | 05:00 PM
#844
Registered
Joined: Aug 2006
Posts: 1,026
Likes: 16
From: Renton, Wa
Make it a 3" tube.. Merely make an insert inside the tube to choke it off.
Cut the end of the tube next to the prop so that it is about 1/2" from the front of the blades.. CAREFUL.. Typically the blades do not all follow the same path.. Spin it by hand and find the most proud blade and set it from there.
Cut the end of the tube next to the prop so that it is about 1/2" from the front of the blades.. CAREFUL.. Typically the blades do not all follow the same path.. Spin it by hand and find the most proud blade and set it from there.
anyway did you get a good burn # gph , mph @ what speed ?
11-16-2016 | 07:01 PM
#848
Registered
Joined: Sep 2013
Posts: 1,090
Likes: 7
From: Ontario, Canada
11-16-2016 | 07:26 PM
#849
arneson-industries.com
Joined: Jan 2001
Posts: 2,782
Likes: 7
From: California
One would think they would all have the same pitch too...
__________________
Arneson Surface Drives www.arneson-industries.com
Arneson Surface Drives www.arneson-industries.com
11-16-2016 | 07:36 PM
#850
Registered
Joined: Jan 2003
Posts: 2,630
Likes: 79
From: Joplin, Mo
That might be in the picture also but not what the picture is of. I took a picture of something.. the picture is of one thing. The fact that's it's hard to see what I took a picture of is good. Can't think of any more hints.
