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Prop Blade Modification

4 years ago
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2bish
2bish
TAS
825 posts
2bish 2bish
TAS, 825 posts
1 Jul 2021 9:38am
Hi, can anyone recommend good companies for doing pitch adjustments on a prop. I have a Flex O Fold 3 blade that I'd like to have adjusted.
r13
r13
NSW
1720 posts
r13 r13
NSW, 1720 posts
1 Jul 2021 12:15pm
Not in Tas but DHPorter in Sydney is highly recommended in prior posts on this site,

www.dhporter.com.au/
Ilenart
Ilenart
WA
250 posts
Ilenart Ilenart
WA, 250 posts
1 Jul 2021 5:15pm
Assume you have seen this on the faq section of the flexifold website. So adjustment is actually replacing the blades, which you should be able to do yourself.


Can I change the pitch and size of a Flexofold Propeller??

Yes! The pitch can be changed by mounting new blades with different size/pitch in the existing hub, unless you have a very old propeller.
Jode5
Jode5
QLD
853 posts
Jode5 Jode5
QLD, 853 posts
1 Jul 2021 7:32pm
2bish said..
Hi, can anyone recommend good companies for doing pitch adjustments on a prop. I have a Flex O Fold 3 blade that I'd like to have adjusted.


DH Port repitched my 3 blade Flex O Fold prop. Make sure they replace the nylon blade back stops at the same time. The only problem we had was Australia Post managed to lose the prop between Sydney and Brisbane. Was sent express post and took 7 days which meant a total of 2 weeks on the slips at Boat Works. ??
2bish
2bish
TAS
825 posts
2bish 2bish
TAS, 825 posts
2 Jul 2021 9:20am
Ilenart said..


Assume you have seen this on the faq section of the flexifold website. So adjustment is actually replacing the blades, which you should be able to do yourself.


Can I change the pitch and size of a Flexofold Propeller??


Yes! The pitch can be changed by mounting new blades with different size/pitch in the existing hub, unless you have a very old propeller.



Thanks, but I don't want to go to that expense. I'd rather work with what I've got.
2bish
2bish
TAS
825 posts
2bish 2bish
TAS, 825 posts
2 Jul 2021 9:22am
r13 said..
Not in Tas but DHPorter in Sydney is highly recommended in prior posts on this site,

www.dhporter.com.au/


Great, I'll give them a call. I particularly didn't want to use a local company in Tas, not a lot of confidence in them and they're super expensive for most things.
2bish
2bish
TAS
825 posts
2bish 2bish
TAS, 825 posts
2 Jul 2021 9:28am
Jode5 said..

2bish said..
Hi, can anyone recommend good companies for doing pitch adjustments on a prop. I have a Flex O Fold 3 blade that I'd like to have adjusted.



DH Port repitched my 3 blade Flex O Fold prop. Make sure they replace the nylon blade back stops at the same time. The only problem we had was Australia Post managed to lose the prop between Sydney and Brisbane. Was sent express post and took 7 days which meant a total of 2 weeks on the slips at Boat Works. ??


Ah great! thanks, good tip about the stops. What was the issue with your prop? I have a theory that the Flexofold calculations for prop sizing are undercooked for a lot of boats. Do you recall the details of the repitching by any chance? What did they charge? Good old Aus Post eh! Expensive for you I bet?
Stockie
Stockie
NSW
343 posts
Stockie Stockie
NSW, 343 posts
2 Jul 2021 12:32pm
2bish said..

Jode5 said..


2bish said..
Hi, can anyone recommend good companies for doing pitch adjustments on a prop. I have a Flex O Fold 3 blade that I'd like to have adjusted.




DH Port repitched my 3 blade Flex O Fold prop. Make sure they replace the nylon blade back stops at the same time. The only problem we had was Australia Post managed to lose the prop between Sydney and Brisbane. Was sent express post and took 7 days which meant a total of 2 weeks on the slips at Boat Works. ??



Ah great! thanks, good tip about the stops. What was the issue with your prop? I have a theory that the Flexofold calculations for prop sizing are undercooked for a lot of boats. Do you recall the details of the repitching by any chance? What did they charge? Good old Aus Post eh! Expensive for you I bet?


I'll watch on I have a two blade Flexofold, and I also think they err on the side of caution, mine seams under pitched a smidge!
stockie
Jode5
Jode5
QLD
853 posts
Jode5 Jode5
QLD, 853 posts
2 Jul 2021 1:18pm
2bish said..

Jode5 said..


2bish said..
Hi, can anyone recommend good companies for doing pitch adjustments on a prop. I have a Flex O Fold 3 blade that I'd like to have adjusted.




DH Port repitched my 3 blade Flex O Fold prop. Make sure they replace the nylon blade back stops at the same time. The only problem we had was Australia Post managed to lose the prop between Sydney and Brisbane. Was sent express post and took 7 days which meant a total of 2 weeks on the slips at Boat Works. ??



Ah great! thanks, good tip about the stops. What was the issue with your prop? I have a theory that the Flexofold calculations for prop sizing are undercooked for a lot of boats. Do you recall the details of the repitching by any chance? What did they charge? Good old Aus Post eh! Expensive for you I bet?


My prop was over pitched and I couldn't get 3000rpm, was only getting 2500rpm. Volvo wanted the full 3000rpm so Porters reduced the pitch and I am now getting 2900rpm. The cost was covered under the boat warranty as it was a new boat. The boat still has the same top speed but the motor is not labouring at low revs.
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