Ãëàâíàÿ ñòðàíèöà

Ëîäêà. Íà ÷òî îáðàòèòü âíèìàíèå.

NEW. Ðîñîìàõà (img) ðóññêèé êîíêóðåíò Harbercraf / Jetcraft

Byuer Guide Ðóêîâîäñòâî ïîêóïàòåëÿ

Ôîòîãðàôèè ñ âûñòàâêè "MIBS 2009"

Çàêîí è êàòåð. Ïîñòàíîâêà íà ó÷¸ò êàòåðà ñî ñòàöèîíàðíûì äâèãàòåëåì.

Êàëüêóëÿòîð(Calculator)

äþéìû â ñàíòèìåòðû

Ñëîâàðü ( Dictionary ).

Ñðàâíèòü ( Compare Boats )

Òåîðèÿ ( Theory ).

Ôîðóìû íà òåìó... ñ ïåðåâîäîì.

Harbercraft

1875 J-Max White Water (img)

2075 White Water

(img)

1875 J-Max XS (img)

2175 XS Ôîòîãðàôèè ñ âûñòàâêè "Îõîòà è ðûáàëêà - 2008"

Marathon Marine and Northwest Jet Boats (link)

PHANTOM Jet Boats (link)

RiverPro®. (link)

North Silver PRO 675Jet lnk

Ðîñîìàõà (img)

Tom 525. Òîìü 525.

Êîëëåêöèÿ ññûëîê íà òåìó: âîäîì¸òû äëÿ ñóäîâ (Links).

5 White Water test drive

Êóðñ äîëëàðà

Äðóçúÿ

Shop for a Manufacturer First

Walk into the wrong manufacturer with a naive attitude and you may end up with the

boat the builder wanted to get rid or rather than the boat you need or want. Ask around

where people got their boat and why. “Lowest price” is not always the best. It is very

easy to build a cheap boat that looks good. Here are some of the tricks to building a cheap

boat:

� Fold the boats ‘origami’ style out of 5052. This saves welding and fabrication.

However, it eliminates the use of stiffer alloys in gunwales.

� Origami boats have not rub rails. You will bump up against things that will

scratch your paint. Extrusions protect that.

� Skimp on stringers. Stringers form the structural basis for your boat and hold

everything together. Without a strong base, nothing else works.

� Quality of components. You may not be able to recognize quality in cables, but

look at latches, hinges, finished edges etc.

� How is the electrical finished. If you are out on the ocean, it better be salt proof

� Minimize welding quality. Welding takes skill. One manufacturer’s discussion

forum had a number of customers discussing how to fix leaks that were clearly

welding errors. If you are content buying a boat that has welding like that go for

it.

Listen for descriptions of good service, accessible and knowledgeable boat people.

It is worth quoting from an editorial in Hot Boat

"These boats (that he was testing) were horrid, compared to comparably priced

and powered boats . . . The fit and finish were phenomenal on both. It was just

that a couple of little incidentals, namely ride and handling, had escaped the

equation and fallen way way short of the acceptable mark. . . . The arrogance of

the builder . . . having realized that it rides and handles like crap, and peddling it

anyway is galling. What makes it even worse is that its builder has a good

reputation in the industry."1

Amen.

Look in the used boat ads

Are there many or few used boats for sale by that manufacturer? Call some of the sellers.

Why are they selling? Are they upgrading with the same manufacturer? Better yet, take a

look at some of the used boats. All boats look great new; how do they look after five

years? Is the finish worn? Are stringers or transoms cracked? Do you see all one brand or

are they evenly spread out across all? If there are a lot of brand X boats on the resale

market there is likely a reason.

Judging the Production Staff

Evaluate the shop. Is it humming? Is it worn but neat? Does it smell like grease and

expertise? If so you have a winner. What do the welds look like? Do you get the feeling

they know what they are doing?

Manufacturer Reputation

Ask around. Check with people you know. Ask the dealer manufacturer who would be

their second choice if they do not buy from you. You will not always get a straight

answer, but generally you will hear the same names come up. We know whom we are

most often compared to.

If you are looking to get in at a very low price, then there will be certain names; if you

are into a quality boat you will hear another set of names. In the industry there are those

that build quality which shows through resale having a limited number of boats on the

market. There are those who make their boats look good, especially to the first time

buyer, but take all the short cuts in building. Find out what the short cuts are. Know how

the boats are built. Just as you can buy a cheap or expensive fiberglass boat, so too can

you buy one or the other in welded. You as the buyer have to decide what to get.

Boats: What to Look For. ÍÀ ×ÒÎ ÎÁÐÀÒÈÒÜ ÂÍÈÌÀÍÈÅ ïðè ïîêóïêå ëîäêè.

I

Introduction.

Ââåäåíèå

Welded Boats in General:

Ñâàðíûå ëîäêè â îáùåì

Our Bias

Íàøè ïðåäïî÷òåíèÿ

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  Ïîêóïàåì ñâàðíóþ ëîäêó ïåðâûé ðàç

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. Øèðèíà äíèùà è ìîùíîñòü äâèãàòåëÿ....

Turning ability.

Stability at Speed: Porpoising versus bow down  Ñòàáèëüíîñòü ñêîðîñòè Äåëüôèíèðîâàíèå.

The Hook.

Spray Line?.

Boat Materials: Aluminum versus Fiberglass . Ìàòåðèàëû äëÿ êàòåðà

Cost differences between glass and aluminum .  Ñðàâíåíèå ñòîèìîñòè ñòåêëîâîëîêíà è àëþìèíèÿ.

Types of Aluminum. Òèïû àëþìèíèÿ.

Material Thickness

A Word about Welding

Suck marks, caterpillar tracks

Folded, ‘Origami’ Construction

Hull Design

Delta Keel.

Deadrise (Vee)

Planing Hull Bottom Types Êîðïóñ ñ äíîì ïëîñêîãî òèïà

Constant deadrise V (including modified V hulls)

Flat bottom hulls (8 degrees deadrise or less)

Bow Entry Types. Òèï íîñà êàòåðà

Shallow Entry

Sharp Entry

Radius Bottom Êðóãëîå äíî.

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

Ñèëîâàÿ óñòàíîâêà.

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:

Ãëàâíàÿ ñòðàíèöà

Ëîäêà. Íà ÷òî îáðàòèòü âíèìàíèå. ñòð. 1, 2, 3, 4 , 5, 6

JETCRAFT. Âîäîì¸ò. Âîäîì¸òíûé äâèæèòåëü. Òåîðèÿ. Ëîäêà. Íà ÷òî îáðàòèòü âíèìàíèå. Ðóêîâîäñòâî ïîëüçîâàòåëÿ. (Boats: What to Look For . Buyer guide)