Andy,
I really have to agree that re-powering of 13' whaler is a great option to show mainstream capabilities to the market.
1. It is a hugely popular boat and on most of the older model, the 4 stroke 40HP re-powering options are really too heavy for the back of the boat. They mess up the balance of the older boat designed for 2 stroke outboard.
2. Many people have opted for a 25hp or added a 12 gal tank (approximately 100 lb) under the front seat to help the balance. this would also be a good place for your battery because it would open the area behind the drivers seat for someone to stand and fish which has always been a complaint when having two fisherman on board. This could also be cost justified by eliminating the need for a separate trolling motor.
3.Many of these boats become a grand kids first boat and I believe you would find that parents and grandparents really appreciating the idea of not having the grand kids messing around with gas engine or the ongoing maintenance.
4. If you can offer do it yourself re-power instructions and a complete re-power kit including a forward seat that covers your battery, I think you may find a very fertile market.
As a retired marketing guy and a fan of the potential for electric boats I hope you succeed.
Mike
On Tuesday, November 3, 2015 7:18 AM, "Hannu Venermo gcode.fi@gmail.com [electricboats]" <electricboats@yahoogroups.com> wrote:
All excellent points from Andy, I agree.
What is the proposed kWh capacity of the batteries, and cost/kWh of same ?
On 03/11/2015 16:07, mike@electricyachtssocal.com [electricboats] wrote:
>
>
> Andy,
>
> Excited about what you are building. My advice?If you are going to
> use the boat as a test/demonstration boat, you should get a boat that
> is more common in the market and would provide the most representative
> model for the market. If you are looking at 20kW outboard, I would
> want to know how it pushes a 13ft Boston Whaler which is a well know
> and popular boat which is often powered by motors from 9.9hp to 40hp.
> That would be a great demo boat to use in order for the market
> understand the capabilities of the motor.
>
> I also want to understand the 20kW continuous. Does it have a higher
> rating for short bursts? What is the voltage of the motor?The 1500
> RPM is good.The special propeller also is of interest.We know of other
> electric outboards that over compare their capabilities because in a
> controlled test their special propeller will perform better than what
> would be a real world usage.
>
> Outboards are rated at the propeller (thrust) which is vastly
> different than what inboards are rated. A 35 hp diesel (break hp) is
> actually about 28shp (shaft hp). That is what we all expect. My
> question is will your 20kW electric outboard therefore would likely be
> more comparable to a 28hp outboard (20000w / 746). Very impressive
> and I believe there is a market for such a quiet powerful motor. I
> would also think that a motor that would provide the thrust of a 9.9hp
> outboard would be even more popular.
>
> MikeElectric Yachts of Southern California/Pacific
>
--
-hanermo (cnc designs)
What is the proposed kWh capacity of the batteries, and cost/kWh of same ?
On 03/11/2015 16:07, mike@electricyachtssocal.com [electricboats] wrote:
>
>
> Andy,
>
> Excited about what you are building. My advice?If you are going to
> use the boat as a test/demonstration boat, you should get a boat that
> is more common in the market and would provide the most representative
> model for the market. If you are looking at 20kW outboard, I would
> want to know how it pushes a 13ft Boston Whaler which is a well know
> and popular boat which is often powered by motors from 9.9hp to 40hp.
> That would be a great demo boat to use in order for the market
> understand the capabilities of the motor.
>
> I also want to understand the 20kW continuous. Does it have a higher
> rating for short bursts? What is the voltage of the motor?The 1500
> RPM is good.The special propeller also is of interest.We know of other
> electric outboards that over compare their capabilities because in a
> controlled test their special propeller will perform better than what
> would be a real world usage.
>
> Outboards are rated at the propeller (thrust) which is vastly
> different than what inboards are rated. A 35 hp diesel (break hp) is
> actually about 28shp (shaft hp). That is what we all expect. My
> question is will your 20kW electric outboard therefore would likely be
> more comparable to a 28hp outboard (20000w / 746). Very impressive
> and I believe there is a market for such a quiet powerful motor. I
> would also think that a motor that would provide the thrust of a 9.9hp
> outboard would be even more popular.
>
> MikeElectric Yachts of Southern California/Pacific
>
--
-hanermo (cnc designs)
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Posted by: Michael Dellario <dellariom@yahoo.com>
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