Pinckert Coyote, Long Wheelbase

Don Ferrette said:

I've run mounts like that in scale hulls before without problems. And actually that is how those isolation dampers are supposed to be used, the way we have them in typical side rail mounting is not what they were designed for.

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SayMikey said:

Don Ferrette said:

I've run mounts like that in scale hulls before without problems. And actually that is how those isolation dampers are supposed to be used, the way we have them in typical side rail mounting is not what they were designed for.

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Don ive seen those rubbers used mounted in the side of auto condensers and oil coolers for years. If I were to use the orginal setup id lose 2 rubbers 6 is overkill on any motor

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SayMikey said:

Don Ferrette said:

I've run mounts like that in scale hulls before without problems. And actually that is how those isolation dampers are supposed to be used, the way we have them in typical side rail mounting is not what they were designed for.

Click to expand...

Don ive seen those rubbers used mounted in the side of auto condensers and oil coolers for years. If I were to use the orginal setup id lose 2 rubbers 6 is overkill on any motor

Click to expand...

David Bryant said:

I'm gearing-up to finally build a brand-new in-box legacy Pinckert Coyote .67/.80 outrigger kit. I purchased this custom built kit from Don back in October 1987, and has sat in my garage since. It will be powered by a brand-new in-box (1987) Andy Brown modded Rossi .80, or possibly a brand-new Picco .67 Silver head (both engines share the same mount dimensions). It's an extremely nicely built boat.

I was analyzing the "old-school" dampened motor-mount assembly. It has two 1/4 inch aluminum plate sections, drilled and tapped to engine dimensions. The aluminum sections are also drilled and tapped to accept four each rubber dampeners. Each aluminum section is secured to a single solid oak hardwood wedge base. The oak wedge is then epoxied to the floor of the engine compartment. Bolts are then inserted thru the hull bottom, up through the oak base and thread into the bottom portion of each rubber isolator. Looking closely at the oak base it's sligthly warped (not sure if this is an issue?)

However I'm not sure whether I should use this engine mount assembly? Or whether to just use a current design isolated side-wall based mount? I believe this hull fuselage is built with 5 inch sidewalls (I'll have to measure precisely). Who is the best source for a new current sidewall-based engine mount? Andy Brown? Aeromarine?

(sorry for double post)

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Don Ferrette said:

I've run mounts like that in scale hulls before without problems. And actually that is how those isolation dampers are supposed to be used, the way we have them in typical side rail mounting is not what they were designed for.

Click to expand...

Mark Bullard said:

'David Bryant' said:

I'm gearing-up to finally build a brand-new in-box legacy Pinckert Coyote .67/.80 outrigger kit. I purchased this custom built kit from Don back in October 1987, and has sat in my garage since. It will be powered by a brand-new in-box (1987) Andy Brown modded Rossi .80, or possibly a brand-new Picco .67 Silver head (both engines share the same mount dimensions). It's an extremely nicely built boat.

I was analyzing the "old-school" dampened motor-mount assembly. It has two 1/4 inch aluminum plate sections, drilled and tapped to engine dimensions. The aluminum sections are also drilled and tapped to accept four each rubber dampeners. Each aluminum section is secured to a single solid oak hardwood wedge base. The oak wedge is then epoxied to the floor of the engine compartment. Bolts are then inserted thru the hull bottom, up through the oak base and thread into the bottom portion of each rubber isolator. Looking closely at the oak base it's sligthly warped (not sure if this is an issue?)

However I'm not sure whether I should use this engine mount assembly? Or whether to just use a current design isolated side-wall based mount? I believe this hull fuselage is built with 5 inch sidewalls (I'll have to measure precisely). Who is the best source for a new current sidewall-based engine mount? Andy Brown? Aeromarine?

(sorry for double post)

Click to expand...

I built one of those boats in 1985 with a rossi 80. Threw that mount away and made a new one for the boat using the rubbers from the mount. The mount I made when on to be the design that is used today. Bill McGraw saw the mount and ask if he could copy it. I removed the mount from the boat at the race and handed it to him and we made the drawing of the mount and I put it back in the boat for the next round. Set a new oval record at the 1986 Internats with that boat and a turn fin that Doc Turner layed out that Pinkert copied that has gone on to be the base line that all fins are made by. Also we had a very new style timing system design that we still use today at records trails. It was the first time that system was used at the Internats. Sold the boat a few years later but was able to get it back and I still got the boat today.

I know a lot of boats use that style of mount and they work great in monos. They were made to replace the Octure 5" mount. I have since been using the Andy Brown style mount that has two aluim. rails with rubber thru the tub side and nylon bolts. But have been using derlin for the rail for a total plastic mount.

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Dasboatman said:

Hey David,

Good to see you are getting around to building the 60 Coyote. I have a 40 Coyote Sprint here that I am just starting to play around with.

If you are going to replace the aluminum tubes - I would like to get them from you.

I was going to build my own a while back and looked into boom material. Then I found that my partner had build the Coyote Sprint, and we did some horse trading instead. Here are a couple places I was provided, Opinions were split on which of the ACP tubes to use - TUR was preferred by Mark Grannis, TU by Bret and Albert Arujo.

Fiberglass booms are available from a couple different sources:

1. Aerospace Composites www.acpsales.com . Look at the TUR (woven carbon fiber), and the TU Fiberglass tubes

2. www.goodwinds.com .500 X 40 Pultrided Carbon tube $15.99. .625 SW X 40 Pultrided carbon Tube $32.99

Pay attention to how Don installs the strut and the angle he used. His intention was to maintain the angle and simply move the strut up and down to provide desired ride angle.

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