Boat Specifications
1. Boat must be inboard powered.
2. Hull must be a three (3) point hydroplane configuration and resemble a limited or unlimited hydroplane design of past or present. Hulls not permitted: outrigger, modified outrigger, tunnels, or canard hulls.
3. Boat must have a name, or sponsor's name, or logo, or a racing number affixed to the hull. (a local or national or fictitious sponsor name is acceptable).
4. Hull shall have a minimum length of 27 inches, and a maximum length of 35 inches.
5. If the bow is recessed behind the tips of the sponsons, that recess shall be no larger than 25% of the overall length of the boat. (refer to Sport Hull Configurations)
6. Boat must have a driver in open cockpit or simulated enclosed cockpit.
7. A strut width no greater than 9/16 inch wide may be mounted either under the hull or on the transom with the farthest end of the drive dog, as measured from the transom not extending out more than 3 inches.
8. See Sport Hull pictorial for clarification of Sport Hull Configurations.
Engine Specifications
1. IMPBA class B engine allowed in Sportsman 20 Hydro.
2. Twin engine installations are not allowed in Sportsman 20 Hydro.
General Rules
Racing to be conducted following current IMPBA Contest and Racing Rules, racing
procedures and format.
here is the rules straight from a book..
I am in no way trying to stirr the pot.. just want to find out... my question is this.. it says no modified rigger.. who says it is a modified rigger.. also the rules state that it it must resemble a limitied or unlimited hydroplane.. does it not resmemble the lobster boat??
just would like to know.. as i would like to run this boat if possible..
also. is it legal to mount the strut on the back of the boat like all other boats run..
thanks,
chris
Chris,
Here is my post that I place on this subject some time back. I think that you will see the point.
Mar 23 2006, 03:10 PM
Ok I have been watching this for awhile. Definition of a rigger or outrigger is a boat that reguires that the support sponsons or canoes be attach by some sort of beam device to the main tub or canoe. I would be safe to say that Don Pickert was watching National Geographics when he came up with the concept of this design, you know the natives in the canoes with the sponsons attach to the bamboo poles. Outrigger designs have not changed much. I have seen round tubes, square bars, rectangle bars, and wing looking bars. Did I say wing looking bars??? The old Wingding was one of these kind of boats. Now you say what is a modified rigger? I feel that modified rigger is any standard outrigger that has had the tube or tubes coverd to try to meet the rule requirement of the 25% cutout rule for a pickel fork design. This is why IMPBA has this rule in place to prevent this from happening. If NAMBA had that same rule in there rules then this boat would be illegal also. This rule in IMBPA rule book is the one that makes this boat illegal to run in IMPBA events.
2. Hull must be a three (3)-point hydroplane configuration and resemble a limited or
unlimited hydroplane design of past or present, except outrigger, modified outrigger,
tunnel, or canard hulls are NOT permitted.
NAMBA's and IMPBA's rules are very close together except for this rule. Now Don not to step on your toes but the present rules are very clear to me as what a Sport Hydro should and should not be in IMPBA rules. There is not any intent or it should be this way. Now Rod said something about the lobster boat being a legal boat. Sorry Rod turn the page of the rule book for the different drawings of the sport boats and you will find more rules. To read a lot of our rules you have to read all of them to get the big picture. This is true with IMPBA and NAMBA. But on the second page of these rules it shows about vents in the hull being illegal. This is what kills the lobster boat.
Now this boat that we are looking at is a beautful, beautful good looking outrigger. And I would not mind owning one myself to just play with. But there is nothing that makes this a sport hydro in IMPBA.
Mark Bullard