Boat Talk

[Member Removed]

can anyone tell me how the trim tabs are fitted, are they just screwed or bolted through the hull? seems alot ot pressure to hold if only held by screws.

[TomBettle]

I have a set of Bennetts and they are simply self tapped onto the hull with a splat of monkey spu@k to seal the area.

 

The pressure isn't realy on the tab itself, more on the ram with the force pushing up.

[Swainiac]

Tom......monkey whatsit...is that a technical term??

 

 

Rich

[TomBettle]

Tom......monkey whatsit...is that a technical term??

 

 

Rich

Common term in the industry referring to white silicon sealant or sikaflex.

 

Monkeyspu@k (yes you guessed right).

 

Tom

[Paul D]

DLP,

 

I had same though with regard to the pressure on the screws. The hinges are screwed into the hold using self tapping screws. The bracket holding the top of the actuator also is fitted using two self tapping screws, but these are a little more substantial ( presumably due to the pressure ).

 

 

[Fugazi]

Don't worry about the trim tabs falling off, providing the screws are tight and secure all the load being applied through them is in shear. I don't know how many screws there are, or the diameter, but assuming they are stainless steel and around 3mm in diameter it would need tons of force to be applied for them to fail. Water pressure on the surface area in question will not be able to generate such a force. I could work it out but I'm on my third glass of wine and watching Grand Designs while I type, but I would be dissapointed if Mad Mike or Affishionado didn't do it for me.

 

Gordon H

[Maverick Martin]

I could work it out but I'm on my third glass of wine and watching Grand Designs while I type,

Third is that all, I'm really dissapointed in you Gordon

[Bob F]

...yeah, especially as he has his own Gin company.