What trim pin do you run your outboard in?

[Projectile]

If you have electric trim, don't bother responding.

If you don't then what trim pin hole do you use on your outboard?

(1) closest to transom ... (5) furthest away (up)

[Locozodiac]

Will depend entirely on transom's angle, all transom angle are not built same, trim to a hole that achieves AV plate and boat running paralell to water level and engine sitting at 90° once on plane. Check..

Wild guessing is never good...

Happy Boating

[dave3235]

Originally Posted by Projectile

If you have electric trim, don't bother responding.

If you don't then what trim pin hole do you use on your outboard?

(1) closest to transom ... (5) furthest away (up)

Hi

I run my engine at pos 2,no bow steer have a little test, you should be able to find a sweet spot.

[Projectile]

Thanks, Loco.

I'm just curious to know if there is a trend, or if it's all over the map, so the question still stands.

[Max...]

Irrelevant really as it depends on each individual boat/engine/loading/weight distribution/sea state etc. But......typically on the typical RIBnet SIB set up it is probably a couple out?

[azzurro]

Me 2nd.

I have too many variability in passengers number (thus weight and distribution) to fiddle it each time.
I do not launch from the beach: my boat is moored tied to a buoy at 200 meters from beach. I have to boat/unboat passengers at a nautic channel in the beach, sometimes with waves shaking the whole pack, so it has to be "up and go".

So 2nd works fine enough most of the time.

[stray]

There's only 3 pin positions on my 15hp Mercury, position 2 seems to be the best for my Bombard.

[Roflhat]

Theres a lot of variables involved with trim.
On my thundercat i use trim 2 with 5mm negative trim spacer for my 18p chopper
trim 1 with 17mm negative trim spacer for my 18p cleaver
trim 2 no spacer for my 15p bunny

[SIBer]

I'm in 2nd
I have 1-5 to choose from.

[Projectile]

Originally Posted by Roflhat

Theres a lot of variables involved with trim.
On my thundercat i use trim 2 with 5mm negative trim spacer for my 18p chopper
trim 1 with 17mm negative trim spacer for my 18p cleaver
trim 2 no spacer for my 15p bunny

What's a negative trim spacer?

What's am 18p chopper?

What's an 18p cleaver?

What's a 15p bunny?

[Projectile]

Originally Posted by Max...

Irrelevant really as it depends on each individual boat/engine/loading/weight distribution/sea state etc. But......typically on the typical RIBnet SIB set up it is probably a couple out?

How can a poll be irrelevant? For instance, perhaps we'll find that nobody uses positions 3 through 5. That would be interesting wouldn't it? Perhaps we'll find that 50% of people use position 1 an 50% use position 2. That would be interesting, too, wouldn't it? Or if 80% of people use position 1?

Yes, I know it depends on many conditions, but I'm sure that folks don't bother to change trim holes because of the hassle. I suspect that the vast majority of folks find the one most versatile position and use it most of the time.

I'm trying to find out if there is one or 2 positions that work well for most people, or if it is all over the map.

[Projectile]

I use position #1. I get too much cavitation (or ventilation, whatever you want to call it) in #2 and #3 is just ridiculous.

A tech at the Inflatable Boat Centre (a huge dealer for inflatables on the West coast of the US) told me that most users use position 1 or 0. I imagine that position 0 means that the trim pin is removed.

[chipko]

I use position 3 of 5, and AV plate about 10mm below keel.

[Landlockedpirate]

Originally Posted by Projectile

What's am 18p chopper?

What's an 18p cleaver?

What's a 15p bunny?

Chopper


Cleaver


Bunny



Dont you have Google in Canada

Seriously, they are all types of prop. The negative trim spacer allows you to change the angle of the engine saddle.

[Roflhat]

Originally Posted by Projectile

What's a negative trim spacer?

What's am 18p chopper?

What's an 18p cleaver?

What's a 15p bunny?

Basically a black of wood used to space the top of the engine out, so trim 1 is effectively like having a trim -1 or -2.
choppers and cleavers are both surface-piercing propellers used in high speed applications, so the setup on them won't really relate to standard propellers. A bunny prop is just a standard looking prop, because of the shape of blade, known as "bunny ear".

Originally Posted by Landlockedpirate

Chopper
Cleaver
Bunny

Dont you have Google in Canada

Seriously, they are all types of prop. The negative trim spacer allows you to change the angle of the engine saddle.

[Barrowboy]

Originally Posted by Projectile

What's a chopper?

What's a cleaver?

What's a bunny?

I can hear Hugh Hefner spinning in his grave....

[captnjack]

Originally Posted by Barrowboy

I can hear Hugh Hefner spinning in his grave....

I'm wondering if this is like a spun bushing since Hugh Hefner is very much alive.

[SIBer]

Originally Posted by Projectile

What's a negative trim spacer?

What's am 18p chopper?

What's an 18p cleaver?

What's a 15p bunny?

Projectile try this

Let me google that for you

[Projectile]

So there have been 6 responses :

position 0 (presumably this means pin removed): nobody
position 1: 1 person
position 2: 4 folks
position 3: 1 person
position 4: nobody
position 5: nobody

Position 2 seems to be the preferred choice for 2 out of 3 Sibbers.

Anybody else want to chime in?

[Max...]

See, told you it was irrelevant. A couple out just like I said!