JETCRAFT. Водомёт. Водомётный движитель. Теория.

Лодка. На что обратить внимание. Руководство пользователя. (Boats: What to Look For . Buyer guide)

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Лодка. На что обратить внимание.

     Marathon Marine - web.  Cтатья очень доходчиво рассказывает НА ЧТО ОБРАТИТЬ ВНИМАНИЕ при покупке лодки или водомётного катера.

NEW. Росомаха (img) русский конкурент Harbercraf / Jetcraft

 

Byuer Guide Руководство покупателя

 

Фотографии с выставки "MIBS 2009"

Закон и катер. Постановка на учёт катера со стационарным двигателем.

Калькулятор(Calculator)

дюймы в сантиметры

Словарь ( Dictionary ).

Сравнить ( Compare Boats )

Теория ( Theory ).

 

Форумы на тему... с переводом.

 

Harbercraft

1875 J-Max White Water (img)

 

2075 White Water

(img)

 

1875 J-Max XS (img)

 

2175 XS Фотографии с выставки "Охота и рыбалка - 2008"

 

Marathon Marine and Northwest Jet Boats (link)

 

PHANTOM Jet Boats (link)

 

RiverPro®. (link)

 

North Silver PRO 675Jet lnk

 

Росомаха (img)

 

Tom 525. Томь 525.

 

Коллекция ссылок на тему: водомёты для судов (Links).

5 White Water test drive

Курс доллара

 

 

 

 

Друзъя

Buying a Welded Boat for the First Time Покупаем сварную лодку первый раз

 

We love to sell boats. It is good for our business and helps to sell more boats. However,

 

we recognize that for most first time buyers of welded aluminum it can be a scary

 

business. The typical buyer has 1-3 boats before, either glass or riveted but are looking

 

for more. Then they hit the BS wall. Most manufacturers of these products do not have

 

the common names you know in glass or riveted. After all of the some 400,000 boats sold

 

in North America, welded aluminum comprises only 1-2,000. So how do you buy?

 

Following are some suggestions:

 

1 Hot Boat Page 8, May 2002 by Kevin Spaise

 

Know the Boat you want

 

We stated our bias up front. You are getting an all round, durable hull. Many of our

 

competitors have a race background and have earned worldwide recognition for that.

 

However, keep in mind racing implies a certain type of construction namely, lightweight,

 

delta pad and limited life as noted in March 2000 Hot Boat Magazine:

 

" The (Brand X) was designed as a throwaway. These boats were extremely light

 

and, with large lifting strakes and delta pads, generate a tremendous amount of

 

hydrodynamic lift. Essentially, you’re comparing an apple to an orange. The

 

(Brand Y – like Marathon) was designed to deal with rough water and windy

 

conditions while still delivering a good ride. The (X) on the other hand was

 

designed to strictly with the quarter-mile in mind (running in ideal conditions.)

 

Do you want dragster or SUV? If you want the dragster we should not be your supplier.

 

You are in a different world in buying welded aluminum and jets. It is okay to not know

 

as much as salespeople. A good salesperson will inform you as to your options. You

 

should be able to describe what kind of boating that you need and want. Things such as:

 

Where do you want to use it? On lake and some river or all shallow water river

 

use?

 

What do you want to carry 2 people or 10?

 

Do you want it just for hunting and fishing or for wakeboarding too?

 

How dressed up do you want it?

 

Ask lots of questions. There is a lot of varied opinion out there as to what constitutes the

 

“right’ boat. We have our opinions, but we are not the customer – you are. It is your boat

 

and you have to be happy with it.

 

If the salesperson focuses in on a particular boat make sure it meets your requirements. If

 

you're hit with a wall of technical jargon, ask for explanations. Do not accept jargon.

 

Boats are simple. They float, they have a power source and they have a drive. Oh, and the

 

pointy end should go forward. Your salesperson should be able to explain how this works

 

for the boat you are looking for.

 

Boats: What to Look For. НА ЧТО ОБРАТИТЬ ВНИМАНИЕ при покупке лодки.

I

Introduction.

Введение

Welded Boats in General:

Сварные лодки в общем

Our Bias

Наши предпочтения

Shop for a Manufacturer First

 

Look in the used boat ads

 

Judging the Production Staff

 

Manufacturer Reputation

 

Buying a Welded Boat for the First Time  Покупаем сварную лодку первый раз

 

Know the Boat you want

 

There is no Perfect Boat

 

Take a test ride.

 

Acceleration out of the hole

 

Bottom Width and Engine Size and Type. Ширина днища и мощность двигателя....

 

Turning ability.

 

Stability at Speed: Porpoising versus bow down  Стабильность скорости Дельфинирование.

 

The Hook.

 

Spray Line?.

 

Boat Materials: Aluminum versus Fiberglass . Материалы для катера

 

Cost differences between glass and aluminum .  Сравнение стоимости стекловолокна и алюминия.

Types of Aluminum. Типы алюминия.

 

Material Thickness

 

A Word about Welding

 

Suck marks, caterpillar tracks

 

Folded, ‘Origami’ Construction

 

Hull Design

 

Delta Keel.

 

Deadrise (Vee)

 

Planing Hull Bottom Types Корпус с дном плоского типа

 

Constant deadrise V (including modified V hulls)

  

Flat bottom hulls (8 degrees deadrise or less)

 

Bow Entry Types. Тип носа катера

 

Shallow Entry

 

Sharp Entry

 

Radius Bottom Круглое дно.

 

Lift Forces Explained.

 

Lateral Stability During Planing Turns

 

Bottom Shape and Jet Intake

 

Planing Ability

 

Reverse Chines

 

Bottom Width: Flair is not everything

 

No Trim.

 

Hull Construction Standards

 

Shallow Water Operation

 

No Exposed Drive

 

Safety

 

Thrust line and Center of Gravity In line

 

Propeller Torque is Different than Impeller Torque

 

Propulsion Resistance.

 

Power Plants

Силовая установка.

Derived from Impeller Curves.

 

RPM Curve Derivation

 

Conclusion

 

Hull Resistance.

Boat attitude..

 

Jet Drives

 

How jets work .

 

Impeller

 

Cut.

 

Cut, Speed and Load

 

Wear ring.

 

Nozzle

 

Stator.

 

Hard Anodized.

 

Cavitation .

 

Intake

 

Seals

 

Mixed flow

 

Axial flow.

 

Outboard jet:

 

Inboard jets:

 

So, what is the best jet?

 

Corrosion.....

 

UHMW...

 

Jet Diagnosis...

 

Rattle at Idle (V8 boats)

 

Speed too low for a Given RPM.

 

Poor acceleration or ‘holeshot’, combined with high top end

 

Definitions.

 

Porpoising .

 

Chine walk: 9

 

Ram effect .

 

Static thrust:

 

Водомётный движитель. ТЕОРИЯ.

 

Адрес для переписки:

Spiridonov S. E.

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Лодка. На что обратить внимание.

JETCRAFT. Водомёт. Водомётный движитель. Теория. Лодка. На что обратить внимание. Руководство пользователя. (Boats: What to Look For . Buyer guide)