Building Climate Matrix Ultimate 12-18 cell

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riggerman

Well-Known Member
Joined
Mar 18, 2003
Messages
365
Im in the process of building this rigger with a lot of ? as the instruction manual is vague #1 the ride pads on sponson bottoms picture shows large angled ride pad glued to left sponson or port side instructions say to glue it to the right sponson which one is correct ? I m running a Nemisis 9xl on 12 -18 cells how much torque do i require for steering servo ? Should i be using a 4-40 rod for steering arm ? or is this over kill? In the tub for the battery packs should they be placed side by side as there is no mention to positioning ? Can packs be velcro to 1/32'' bottom ? which seams a bit on the flimsy side or should bracing be placed in the battery locatiion which im guessing will be determined by center of gravity which is also not mentioned in the instructions . For finishing the rigger i would like to leave it natural wood i was thinking to seal it in Minwax Helmsman spar urethane but im open to suggestions any info would be great .
 
"I m running a Nemisis 9xl on 12 -18 cells how much torque do i require for steering servo ? "
A 42-ounce servo is plenty, just run it on 5 cells.
"Should i be using a 4-40 rod for steering arm ? or is this over kill?"
That size is larger than many use, but it will work fine.
"Can packs be velcro to 1/32'' bottom ? which seams a bit on the flimsy side or should bracing be placed in the battery locatiion which im guessing will be determined by center of gravity which is also not mentioned in the instructions."
I'd glue a 1/16" doubler under the pack location. Usually the CG on a rigger is located ca. 2-3" behind the sponson transoms.
"For finishing the rigger i would like to leave it natural wood..."
Most rigger builders use epoxy, either thinned and brushed on, or spread on then squeegied off. The epoxy gives more strength to the wood than urathane, but I prefer to use LustreKote from TopFlight. It is a good aircraft spray paint, covers well in colors. I have only used the clear as a top coat so I do not know how it works for a primary coat. It drys quickly, sonething that "spar varnishes" sometimes do not do in humid conditions..
 
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