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Conference vmszoo::rc

Title:	Welcome To The Radio Control Conference
Notice:	dir's in 11, who's who in 4, sales in 6, auctions 19
Moderator:	VMSSG::FRIEDRICHS

Created:	Tue Jan 13 1987
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	1706
Total number of notes:	27193

1612.0. "pusher help " by POLAR::WHITTALL () Thu Jun 30 1994 01:13

    I am currently on a quest for a pusher prop 18" with an 8-10 pitch.
    I need it for an amphibian that I am constructing and since it will
    be running on water, now here's the problem, I can't use wood as it
    would not be durable enough . Any water spray would have a tendancy
    to shatter the prop. Does anybody know where I can purchase a pusher
    this size ? I am looking for props made of ,other than wood, material.
    Aluminum would be nice, but as for now I have found one supplier who
    has the size I need but, its made out of wood.  H E L P !

T.R	Title	User	Personal Name	Date	Lines
1612.1	prop'ed up...	GALVIA::ECULLEN	It will never fly, Wright !	`Thu Jun 30 1994 06:13`	8
	I would think that Aluminium would be out since it would probably be against what you AMA or other insurance would allow. I know wooden props generally don't make it past the first encounter with the ground but from what I can see most of the big props are made of wood. From a water soiling point of view , if the props are not already coated or sealed, then I guess one could seal them, re-balancing them afterwards. Alt-E
1612.2	Some ideas	ANGLIN::SPOHR		`Thu Jun 30 1994 10:58`	10
	I don't know if they make pushers in Large sizes, but try DYNATHRUST. Another, possibility depending on your engine: You can use a regular prop (tractor) if you can reverse the engine rotation. This is possible by rotating the front carb housing 90 degrees on engines with a two piece case. My .02
1612.3	Reverse a gas engine ?	POLAR::WHITTALL		`Thu Jun 30 1994 19:51`	6
	Re: reversing the engine. I have a gas engine,which means I simply have to change the timing ? The prop is held in place by just the one bolt in the center. If the engine is reversed then the force of the prop would likely loosen the bolt. I cringe at the thought of an 18 inch prop coming undone. It's intimidating enough just starting it. Any other thoughts. I'll also call re: the dynathrust.
1612.4	BE careful when you assume	ANGLIN::SPOHR		`Fri Jul 01 1994 13:11`	8
	I was assuming you were using a LARGE glow engine. I would'nt try it with a gas engine either! Anyway, it's the thought that counts. Right?! Good luck with your search.