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Building Tips and technical articles. => Building techniques => Topic started by: ray copeland on April 16, 2011, 07:55:17 PM

Title: Vector Tip Weight
Post by: ray copeland on April 16, 2011, 07:55:17 PM

Trying to finish up my Brodak Vector kit and am wondering about tip weight to start with. My plan was for 1 1/2 ounces, is this too much?   Thanks, Ray

Title: Re: Vector Tip Weight
Post by: Allan Perret on April 17, 2011, 08:46:21 AM

I think a good ballpark starting point for 40 size on .015" lines is about 1oz; and for 60 size on .018" lines is about 1.5oz.
But I like to hang model from nose and tail with outboard wing tip on scale and make it heavier by .75oz for 40 size; or 1oz for 60 size.

Title: Re: Vector Tip Weight
Post by: ray copeland on April 18, 2011, 01:04:29 PM

Thanks Allan, 1 ounce it will be to start! 

Title: Re: Vector Tip Weight
Post by: Mark Scarborough on April 18, 2011, 06:23:10 PM

you may want to do something a bit different, credit Pat Johnston for this super simple idea,,
with the airplane ready to fly ( minus lines) balance it on the spinner and the rudder, put a scale under the outboard tip and then add weight until it actually weighs one ounce. this will make up for any inherent imbalance due to mufflers, heavy wood , uneven finish weights. it will put an actual ounce on the tip.

Title: Re: Vector Tip Weight
Post by: john e. holliday on April 20, 2011, 08:56:12 AM

Do you take out enough to make up for the glue? LL~ LL~ VD~Just being the real me. H^^I like the idea.