1/8 scale offset/center mtr well

[daveberari]

8255 hull is it worth offset mtr for heat racing?

 

[Samuel Hagan JR]

Your going to get 2 answers. Yes and No. It’s all about your preference and how you set your boat up. If it’s a Phil Thomas hull I would just follow his instructions.

 

[daveberari]

Your going to get 2 answers. Yes and No. It’s all about your preference and how you set your boat up. If it’s a Phil Thomas hull I would just follow his instructions.

This is wof /newton plan /light boat

 

[Samuel Hagan JR]

Me personally I offset all of my boats and point the strut 1 degree to
Left sponsons.

 

[SayMikey]

Nope your going to end up adding weight to keep it from flying. Spend more time on strut weight and Strut/Fin alignment. The lees they fight the faster you go. Remember in Scale/Sport racing corner speed is everything

 

[daveberari]

Nope your going to end up adding weight to keep it from flying. Spend more time on strut weight and Strut/Fin alignment. The lees they fight the faster you go. Remember in Scale/Sport racing corner speed is everything

So what do you mean “strut weight” I’ve tried to balance my boats a tad front heavy Why would offsetting make it fly ?

 

[daveberari]

So what do you mean “strut weight” I’ve tried to balance my boats a tad front heavy Why would offsetting make it fly ?

None of my previous builds rigger/sprt40/scale were offset and turned great just want to make sure I’m not missing an advantage in the turns

 

[GraysonTaylor]

If the real boat is offset and your boat isn't, you may have a problem convincing everyone it's a scale boat. Check with your local club.

 

[Samuel Hagan JR]

If the real boat is offset and your boat isn't, you may have a problem convincing everyone it's a scale boat. Check with your local club.

There is no rule on offset Strut in IMPBA.

 

[GraysonTaylor]

I was referring to the center section of the boat. My bad.

 

[SayMikey]

So what do you mean “strut weight” I’ve tried to balance my boats a tad front heavy Why would offsetting make it fly ?

You want the boat to balance on the leading edge of the fin,but you only want about 20 Oz of strut weight. West System type scales work good for checking strut weight. As far a offset it wont matter as your going to add weight to balance heavy on left sponson IMHO

 

[daveberari]

You want the boat to balance on the leading edge of the fin,but you only want about 20 Oz of strut weight. West System type scales work good for checking strut weight. As far a offset it wont matter as your going to add weight to balance heavy on left sponson IMHO

Thank you for giving me an additional set-up tip I have not heard mentioned before

 

[daveberari]

Thank you for giving me an additional set-up tip I have not heard mentioned before

Why would want to add weight to the left sponson?

 

[Hydro Junkie]

To prevent it from lifting in the corners. You have to remember, a hydroplane doesn't turn, it slides through the corners. The only thing that prevents it from an uncontrolled slide is the turn fin. That said, the left sponson is taking a lot of air from the side that, depending on the angle of the side, can and will lift that sponson. That is why, when you look at the right sponson of a full sized boat, they have an air dam on the inboard edge that sticks up above the deck. It's whole job is to push the sponson down in the corner, helping to prevent it from lifting and causing the boat to blow over

 

[FloridaScaleBoater]

Why would want to add weight to the left sponson?

To counter act prop torque.
Prop torque will tend to lift the port sponson.

 

[daveberari]

To counter act prop torque.
Prop torque will tend to lift the port sponson.

Kool didn’t think of it that way thanks

 

[Grimracer]

I have 13oz over the left sponson on my 1-8 PT 8255.. and a MASSIVE turn fin..

My Sport 40 has 8... and a MASSIVE turn fin..


Both boats have drive shafts 1deg to port. one off set one down the center.

Grim

 

[daveberari]

I have 13oz over the left sponson on my 1-8 PT 8255.. and a MASSIVE turn fin..

My Sport 40 has 8... and a MASSIVE turn fin..


Both boats have drive shafts 1deg to port. one off set one down the center.

Grim

What’s the lbs on the scale /how many square inches of turn fin?

 

[daveberari]

What’s the lbs on the scale /how many square inches of turn fin?

So if the turn (with bottom curl) ic holding down the rt sponson why offset the engine away from the left sponson needing weight in the turn? Just trying to understand the weight thing

 

[Grimracer]

huge difference between prop torque and turn force..

Grim