heh at a recent BS day I discovered that all but 1 of our active locals has a 3d printer This time last year I think only 2 of us had one
It is easy and would only cost 50 dollars in time and material. Or, you could modify a tub stopper like i have and viola! A drag prop with 0 pitch and only 1 blade in 2 minutes
My apologies Nick. I let my frustrations get the best of me. Can we just delete all the posts and clean up the thread?
In this case I want the blades to be thick to help survive any hits to the shore or building table. So I build up the back of the blades with plastic card (can scrape it off later). If you want to get real fancy, you build in the disk and you can always shave material later.
If this were the rule everybody would switch to using drive props with massive blade area so the can do the same on their drag props. Wouldn't solve anything.
Rudders only cover so much, I don't understand the thought on this one. If I run a 3 inch main prop, turning will be less than optimal. Besides, you can do this now and I don't see anyone other than a center shaft ship running large props.
I meant you can get a prop with lots of blades that when looked on from in front looks like a solid circle. So you're getting as much coverage as a disk. Tell me, what's so wrong with just using disks. Why do we have to come up with something totally different that's much harder and will be a nightmare to enforce?
Sorry Carl, I disagree. If you get a prop with a lot of blades, then it should be expected that the drive prop has a lot of blades and everyone is happy (and more blades is not good in our scale, as well as using the sub props). Why is it a "hard" concept that the drag prop needs to look like the drive prop? If you can't make one, then the rest of your boat is in trouble. If what you are telling me is the E-board is going to say a flat disc no thicker than 1/8th and no larger than the drive prop (and no silly drilling of holes to make a 5 inch diameter a 2 square inch) then I am good with it. It is good that we are talking about it before we have issues at pondside again with interpretations.
Its not allowed by the rules? Very simple. All that needs to be done, is change the rules, easy to do right?
Not saying it's a hard concept, but it's hard in reality. For one, there is just too much variance in props. There is no universal standard. Someone can put on a drag prop with more blade area and argue that it 'looks' like their drive prop. How will you measure the surface area of the drag props? If you can't, how will you know if they're not cheating? I think it would be a mess.
If anybody has been reading my previous posts, that's exactly what I've been calling for. Just revise the rule so drag disks are legal with some size limits and some provisions to prevent cone drag disks and the like. Problem solved.
I agree with you. The same thing I have been saying, As of now they are not legal, and we need to follow the rules. I'm quite sure if one of these fellows, who are saying that they are legal, but wrong, just needs to write up a rule proposal modify the existing rule, and it would pass. But I also agree with the few that think we need to get rid of them totally, and just follow the rule as is. With the hobby as it is now, power full motors, ESC's, swapping batteries they are no longer used to get on speed, just a side effect. Why you see these giant drag disks, its all about getting max thrust across the rudder for turning.
