Sealine F33 Prop Size

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IANJERRY

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Hi
New here and after some helpful info please

I have a Sealine F33 powered by two KAD32 on duo props - Ima looking to replace these
Would anyone know what size props were fitted originally by Sealine and any recomendation on best place / costs out there at the moment

Many Thanks
ian
 
Welcome , sorry I can’t help much , first best say where you are based , but also try the sealine forum .
 
IANJERRY said:
Hi
New here and after some helpful info please

I have a Sealine F33 powered by two KAD32 on duo props - Ima looking to replace these
Would anyone know what size props were fitted originally by Sealine and any recomendation on best place / costs out there at the moment

Many Thanks
ian
Click to expand...
Key part do a cheap non genuine duoprop set .
I am sure Martyn will be along with the correct size as he has the same boat , I’m going to guess at A4 .
 
A4 is a good guess.
The 2003 brochure says 27-29kts, which suggests A4.
Hopefully someone with an F33 can confirm.
 
Last edited:
And here I am thinking Volvopaul would have exact answer.

No one seems to have the data from Sealine and I don't really expect it to emerge due to the time elapsed since Sealine Kidderminster closed their doors.

After an enquiry on the Sealine forum the general opinion agrees with Volvopaul at A4 being the factory fitted props based mostly on S34 owners with kad 32's . The S34 is a very similar to the F33 in terms of hull geometry. .

I am sure a marina neighbour who used to have a F33 says he used A5's . If I get a chance I will ask him how his F33 performed with A5's.

I can't be certain of the props I have fitted as the marks are unclear and props can be re-pitched so the original marks can be misleading.
 
MartynG said:
And here I am thinking Volvopaul would have exact answer.

No one seems to have the data from Sealine and I don't really expect it to emerge due to the time elapsed since Sealine Kidderminster closed their doors.

After an enquiry on the Sealine forum the general opinion agrees with Volvopaul at A4 being the factory fitted props based mostly on S34 owners with kad 32's . The S34 is a very similar to the F33 in terms of hull geometry. .

I am sure a marina neighbour who used to have a F33 says he used A5's . If I get a chance I will ask him how his F33 performed with A5's.

I can't be certain of the props I have fitted as the marks are unclear and props can be re-pitched so the original marks can be misleading.
Click to expand...
I was assuming you still have the boat so you would know the size ? I’m down you way this week .
 
Thanks all for the responses its really has helped.
I will take a good look and see what she has fitted currently next time we lift her in Swansea - I suspect they were replaced by the previous owner so not sure what's there at present.

I 'll start shopping around now and see what's out there

Many Thanks again all

Ian
 
I have had my props refurbished and pitched to A5 so we will see in due course whether the boat performs differently to before.
This is based on discussion with a former F33 with kad32's owner.
I think my props could have been A6 . Not certain about that but the boat did sometimes feel a bit over propped.

Fresh antifoul applied today so running out of reasons to remain on the hard standing.

By the way. Original Volvo Penta duo props can usually be re pitched or repaired but some after market types may be poor quality metal and might not survive the repair process.
The only duo prop aftermarket brand that Streamlined Propellers recommended is Michigan.
 
I think if you take the props off…you’ll maybe be able to see what it says on them.
If they aren’t thin and damaged beyond terrible…you’ll get them refurbished nicely by Michigan Marine. They also offer an aftermarket new prop set, at a considerably cheaper price from VP. Not sure about the A props, but I know that the B props of the same era, have been discontinued by VP.
 
Momac said:
I have had my props refurbished and pitched to A5 so we will see in due course whether the boat performs differently to before.
This is based on discussion with a former F33 with kad32's owner.
I think my props could have been A6 . Not certain about that but the boat did sometimes feel a bit over propped.

Fresh antifoul applied today so running out of reasons to remain on the hard standing.

By the way. Original Volvo Penta duo props can usually be re pitched or repaired but some after market types may be poor quality metal and might not survive the repair process.
The only duo prop aftermarket brand that Streamlined Propellers recommended is Michigan.
Click to expand...

A6 is a bit toppy, my S28 had A6 with the same engines.
 
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