Modified V vs Deep V

[C0holfr]

Looking for some insight
Currently own a 16’ Alumacraft deep v with prop outboard, recently find myself fishing rivers more than lakes/reservoirs. Bumped a few submerged rocks this season, luckily only damaged a prop so far. Thinking of making the switch to a 16’ Lowe modified v with a jet motor, wondering how well it would perform on the occasional big water trip especially in windy conditions & waves. Guessing not as well as the deep v, hope adequate enough to safely get home if wind blows up?

 

[redneck joe]

welcome to the forum.

I'm no help but someone will be by soon that knows something.

 

[Pmt133]

Back in the day, dad had a grumman 14W (obviously shorter than a 16) which was a wide 14 with a modified v. He enjoyed it on the south bay of long Island and is currently looking for another. It'll do good enough I'd think.

 

[alldodge]

Welcome
Shallow waters are killers for jet drives, most recommend at least 2 feet of water under the hull to keep from sucking up something off the bottom

 

[Stinnett21]

Check out Tinboats.net. I would post over there.

 

[C0holfr]

Welcome
Shallow waters are killers for jet drives, most recommend at least 2 feet of water under the hull to keep from sucking up something off the bottom

Thanks, I don’t run that shallow, the problem is the outcropping of rocks. There’s areas where you can be in 8’-10’ of water and suddenly there’s a single rock formation that rises almost to surface

 

[Texasmark]

Looking for some insight
Currently own a 16’ Alumacraft deep v with prop outboard, recently find myself fishing rivers more than lakes/reservoirs. Bumped a few submerged rocks this season, luckily only damaged a prop so far. Thinking of making the switch to a 16’ Lowe modified v with a jet motor, wondering how well it would perform on the occasional big water trip especially in windy conditions & waves. Guessing not as well as the deep v, hope adequate enough to safely get home if wind blows up?

Known fact: The flatter the hull, especially at the transom, the higher the boat will run on the water. If the water is big waves, then you are going to be bouncing around more if at any kind of speed.

Unknown assumption: I would imagine if the jet stays in the water, like if a prop stays in the water, then you should get your desired propulsion. With the hull riding more "on" the water then that would be more of a problem.

When I was actively involved in water activities, I had 2 boats, adapted to the situation where used.

 

[Chris1956]

Gee, how about installing a powered jack plate. It can lift the motor high up for those shallow spots and lower it down for the high speed deep water runs.

Jets are about 1/3 less efficient than props. For equivalent performance, you would need more power with a jet drive.

 

[airshot]

Depends in how big the waves will be. Have owned both over the years and used both on Lake Erie where waves can be flat to 3-4 ft high in a very short time if you not paying close attention. I generally stay away if waves get over two feet so in that situation either the deep or modified doesn't make much difference. In 3' plus waves the deep V will give a better ride where the mod V will be rough. Just the opposite when it is flat with little wind. The mod V is a little faster and will get up on plane quicker and actually use a little less fuel. The deep V creates more drag until your up on plane at wot. So....it all comes down to how it will be used and in what kind of conditions..

 

[Scott Danforth]

Hitting a rock formation with a prop lowe or a jet lower has the same result..... You are rowing home

A prop lower will transmit significantly more power than the jet lower

For big water, you want a deep vee. For wind, you want a deep vee