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Two speed props

ONE-A-DAY

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Anyone ever use one of these two speed props. Cool concept, I just wonder if they work. Supposedly it shifts pitch after you come up on to plane. Complicated gear / clutch mechanism inside the hub and it has something along the lines of a preload adjustment where you can adjust the low end and high end pitch settings.
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LazyLavey

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I remember those from the 80s. I wanted to try one on my Sebring but never did

Land and sea made one, maybe others as well

Seems I remember there were issues with the cams or the springs causing the shift to malfunction??

I haven't seen any advertising or indication they're still available
 

ONE-A-DAY

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Yeah, it justs look fragile, blades attached with a slim pivot thing. I figured it it was revolutionary they would be everywhere
 

Racer56

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We had a 21 eliminator with a Merc 350 and a Alpha with the Land and Sea multi pitch prop and it worked great for pulling skier's in Lake Arrowhead.
 

satellitemike

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I had one on my 95 Lavey Craft Seabring w a 2.5, surprised me how well it worked!
 

Ricks raft

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I tried one on my hallett 210-454 magnum. The idea was good if it would have functioned better. Different cams were available if I remember correctly six or eight degrees of pitch. Ii was hard to get it to shift pitch usually had to back off throttle turn the wheel a little play with trim. Obviously gave fantastic hole shot and after it shifted was not bad for performance on the top end.
 

Nanu/Nanu

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My father in law had one of these. He said that prop was the cats ass!
 

HighVoltage329

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ran one on my 240 Hallett. worked good, still have stand will sell for $200
 

chvynhra

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They should make a two speed prop with planetary gears like a gear vendors overdrive.
 

2FORCEFULL

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a 2 speed out drive would be better, but at the end of the day, a boat will never turn more prop than the power it has...

take a schiada,.. even with a 3 speed trans , top end will be the same at max rpm's..
 

Bowtiepower00

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I’m pretty sure anything @ONE-A-DAY owns would rip these to shreds immediately. Unless you put it on the toon. Lol
 

ONE-A-DAY

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I’m pretty sure anything @ONE-A-DAY owns would rip these to shreds immediately. Unless you put it on the toon. Lol
I’m not going to use it, it just looks too fragile and has a shit ton of little moving parts inside the hub, I think it will be fine for like a four-cylinder or a six but a big block V-8 I just think you might not make it home when some blades decide to come off
 

Racer56

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a 2 speed out drive would be better, but at the end of the day, a boat will never turn more prop than the power it has...

take a schiada,.. even with a 3 speed trans , top end will be the same at max rpm's..

Actually Weismann in Costa Mesa built 2 speed out drives and they were outlawed by all of the racing sanctioning body's.
 

zx14

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Yes, I tried the land and sea variable prop years ago. It worked, I think. But would get stuck, most every trip. But it was on a v6 21’ baja islander. Our first boat.
 

stingray11

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I had one years ago on a hydrostream it worked pretty well The problem was it vibrated a lot
 

Sleek-Jet

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My brother still runs a land&sea prop on his boat (which was my dad's boat originally). Still works and does what it is supposed to. He can get parts from somewhere, the springs break most often. Boating at Powell in the summer was enough that the boat needed more prop.coming out of the hole. An elegant solution.

This is on mid-80's 18' Concord (think Checkmate or small Baja from the same timeframe) with a 200 Blackmax.
 

azsunfun

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before doing any prop stuff what is max pitch of your existing variable found manufacturer but no other data, if you dont know pitch now, your going down a rabbit hole.
 

HighVoltage329

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On a light boat they work well. More aimed at the outboard market.
I never broke on my 240, came out of the hole quick but didn't like the abrupt shift into high gear. Worried it would hurt the drive.
 

spectra3279

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I could see something like this being used to test for different pitch on your boat. Not one that changes on your own, but one you change for testing
 

SLEEK28

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We ran one on a 28 Sleek with a 454 Mag for many years. Loved it. It was great for days when the kids wanted to do a lot of watersports. We had a much better hole shot with it. You could adjust the shift point in ~100rpm increments with that little plastic dial. Ours wasn't the Land and Sea model tho. I'll have to check to see who manufactured ours.
 

Jay Dub

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Anyone ever use one of these two speed props. Cool concept, I just wonder if they work. Supposedly it shifts pitch after you come up on to plane. Complicated gear / clutch mechanism inside the hub and it has something along the lines of a preload adjustment where you can adjust the low end and high end pitch settings.
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I had one on our old boat. Worked great when it worked. the issue was that sand/etc would get into the shifting mechanism and it would hang in low gear. I still have it somewhere is someone is interested.
 

HST4ME

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Don't try to surface one!!!

Awesome idea for the low HP Bayliner crowd, but they explode in a performance application.


Yeah...but the first few holeshot hits are amazeballs.

.:p
 

pwerwagn

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We tried one back in the ~late 90's maybe. I'm 90% sure it was a land and sea tork shift II or something like that. A guy at the butte had it on his 200 Merc on a relatively large hull, and we put it on my 20' Centurion with a 200 Merc. It worked amazing down low...and exploded promptly after the 2-3rd run (likely from surfacing it).

It was a cool concept, just didnt work that great.
 
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