District 12 Class Race List
Novice
Ready to Run
B / P
Mono
B / P
Hydro
B Sport Outboard Tunnel
B / P-Limited Outboard
Tunnel
D Mono
Sport 20 /
P Sport Hydro
Sport 40 / Q Sport
hydro
Electric 10th Scale Unlimited Hydro
Nitro 1/8th
Scale
FE 1/8th Scale
Open Nitro / FE Mono
Open Nitro / FE Hydro
LSG Mono
LSG Cat
LSG Sport Hydro
LSG Outrigger
Jersey Skiff/Crackerbox
Classic
Thunderboat
Super Sport
Open Offshore
Additional classes may be added
at the host club's discretion.
D12 Rules and Specialty Classes not covered by the IMPBA Rule Book
Noise
Rules:
All
internal combustion engines larger than .21" (3.5cc) are required
to be equipped with a functioning muffled pipe, internal stingered
pipe or add on muffler. All boats must comply with
the Noise Rule located in the Technical Standards section
of the IMPBA rule book.
Drivers not using DSM transmitters must have
alternate frequencies with them at all times at sanctioned
races. Should combining heat(s) or run-offs require frequency
changes, driver with high points has choice (for run offs driver
with best placings has choice i.e.- 2 firsts vs. 1 first). Any
person who needs to change due to combining heats or run-offs and
does not will receive zero (0)
points for any heat or forfeit run-off for not being able to
change. Any driver using 2.4 spread spectrum is obviously exempt
from this rule.
Novice Class Rules: No outriggers or gasoline powered boats permitted. Nitro powered boats shall have an engine displacement no greater than D Class (.458 cubic inch or 7.5 cc). FE boats shall have a voltage limit no greater than the P Class (4S or 14.8 volts nominal) The Pit Man shall not touch the driver's transmitter once the boat has been launched unless it is to prevent an imminent collision with the shore.
FE P-Limited
Classes: Only approved motors may
be used in this class. (see below)
District Points Championship: Any class that has a minimum of 15 entries cumulative during the distict race season will be eligible for a class championship. Classes with less than three entries at a race will not be counted toward the 15 entry minimum and racers will not earn championship points for that class. To count toward the 15 entry minimum, an entrant must make an attempt to start at least one heat in that class.
Scoring will be awarded as per the Heat Racing Points Table in the IMPBA Rule Book. Any ties for the top three places at a race shall be decided via a runoff or coin toss (if both parties agree). In the event of of a tie below third place, both racers will be awarded full points for that place. Those finishing behind the tied racers will recieve their normal points as though there was no tie. (Example: If two racers tie for forth, they both recieve forth place points. The following racer recieves sixth place points.) If zero points are accrued for the race, the racer recieves zero points toward the championship. Any racer finishing beyond 9th place in a race will recieve zero points toward the championship.
The clubs shall collect one dollar for each boat entered at each race to pay for plaques or trophies to be awarded to class champions. Club officers shall forward district racing fee's and race results in a timely manner to the district director.
Boat Appearance: Racers are expected to comply with IMPBA rules pertaining to boat appearance rules in specialized classes. These rules include requirements for drivers, simulated cockpits, sponsors (simulated or real) and numbers. Classes affected include but are not limited to Offshore, Jersey Skiff, Sport Hydro and 1/8th Scale. These rules can be found in the IMPBA rule book under "Hull Specifications" for the appropriate class. Failure of boat to comply can result in a disqualification and loss of points for that class at that race.
Offshore Course: The Offshore Course must include a left hand turn at all District Races.
D12 Open & FE/Nitro Combined Class Rules
1.
All heats will be six laps unless specified in
district race flyers.
2. All heat starts will be in accordance with IMPBA Rulebook, Section G, Heat Racing Rules.
3. During
a heat, a FE boat cannot stop for any reason.
Doing so will result in being
called a "Dead Boat" by the CD. A barrel roll,
end over end flip or spin should not be
called a dead boat as long as the boat continues in a
forward motion.
Racers shall respect the
CD's judgment. When called a dead boat,
the
boat is to
proceed directly to the infield and
come to a stop behind the start buoy until
the end of the heat.
4. At the end of a heat as a
boat finishes, one of
two
methods may be used:
A.
A racer may
choose to do a cool down lap and will continue all the way
around
the course before coming to
shore.
B.
A racer may choose
to park in the middle of the
race course. After the racer finishes the heat,
the racer shall give
way to all other boats and when safe to do so, pull
into
the course infield. The racer
shall come to a stop and hold his position until
all boats on their
cool down lap have returned to shore. Only then may
the
racer may bring their boat
in.
5.
A qualified FE racer shall be designated to
retrieve all dead boats
after a heat if there is a dead FE boat on the
pond. Anyone retrieving a
FE boat shall exercise extreme caution to remain clear
of the propeller at all times.
6. In the spirit of good
sportsmanship, any FE
boats
having a noticeable speed advantage over the faster nitro boats
will be
asked
to detune their boats to ensure competitive racing. If they do
not
comply, they shall be
disqualified from the class for the race weekend.
All
Open Classes are exempt from
this rule.
7.
LiPo battery packs shall be charged on a
flameproof surface
or inside a flame proof container such
as a Lipo sack, metal
table, Pyrex Dish
or Clay Pot. Under no
circumstance should a Lipo pack be charged while in a boat.
A dry fire
extinguisher
or extinguishing agent such as a bucket of sand shall be kept
in
all FE racers pit area or
where batteries are being charged.
8. FE's participating in the Open OB Tunnel class shall be restricted to a battery voltage no higher than the Q class limits (6S) as defined in the IMPBA rule book, Section J. All other Open classes shall be restricted to no higher than T class voltage limits (10S).
9.
FE P-Limited Rules:
A.
Approved Motors: Motors shall be of an
inrunner design and shall not exceed the following external
dimensions:
(1) Length: 60mm (2.362 in.), This includes any motor bearing protrusion but does not include the motor shaft.
(2) Diameter: 37 mm (1.457 in.)
B. Cooling: Motors and ESCs may be cooled as desired. Water jackets, cooling plates, electronic fans, etc., may be added as desired, so long as they don't perform an otherwise illegal function.
C. Contacts and Wiring: Originally supplied contacts may be replaced. Wire length on the power and phase leads may be altered to facilitate installation. If lengthening the original wires, additional wire may be added to the factory supplied wires. If shortening the original wires, the final contact to the Motor or ESC must be made using the original wiring. The intent of this rule is to prevent the removal and replacement of the original wiring in its entirety, by requiring that the final contact to the Motor or ESC be made by the original wiring.
D. Capacitors: Extra Capacitors may be used to protect the
speed controller from ripple
current.
E. Battery: Voltage
limits and battery specifications will be in
accordance with the P class
located in the IMPBA rule book,
Section J.
F. Hull: Length restrictions shall be in accordance with the P Classes in the IMPBA rule book.
Electric 10th
Scale Unlimited Hydroplane
Motor and Boat Specifications:
1. All models must be of a real unlimited hydroplane as listed in the APBA Master Hull Roster list. The model owner must show the real boat attempted to qualify, qualified or raced in an actual sanctioned racing event, in the configuration being modeled, via photographic and/or written documentation. Failure to adequately meet the validation requirements can result in the model not being allowed to compete in an IMPBA D12 event until proper documentation is obtained.
2. All boats to be built to a scale of 1" to 10" (1/10 scale) plus or minus 10% of the beam and 5% of the length.
3. Boats will look as scale as possible and meet the following requirements for racing and optional scale judging:
a. Cockpit with period correct driver figure
b. Completion of all major lettering and paint schemes
c. All FE power components (batteries, motor, ESC etc.) shall be concealed with fake engine or cowling as per prototype boats.
4. Hull bottom and running hardware will not be judged or checked. However, hull must not deviate from conventional 3-point hydro (unless prototype was a different design).
a. Hull bottom must be scale appearing.
b. Belly pans are acceptable to clear FE components. Maximum pan depth is ½”.
c. Secondary front sponson running surfaces are optional.
d. Air traps are optional.
5. Motor will be maximum case (minus cooling jacket) diameter of 37mm and maximum 60mm in overall case length.
6. Power will be 11.1 to 16.92 volts with a maximum 8000mah total
7. Boat shall use same number of propellers as the prototype.
8. The drive dog must not extend beyond the transom unless the prototype's strut and/or drive dog did so (photo documentation may be requested for proof by race CD or district scale director), maximum distance for transom to prop hub front face is 2”.
9. No twin rudder assemblies allowed.
10. Boats should have the ability to change frequency.
Rules for Optional Scale Judging (Concourse):
1. Boat must accumulate 50 points in racing to qualify for scale judging.
2. Judging points to be separate from racing points.
3. All boats are to be judged no closer than 5 feet.
4. A picture must be submitted for the scale judging.
5. Points as follows:
a. 1 to 10 overall scale appearance
b. 1 to 10 for detail, engine, cowl, driver, etc.
c. 1 to 10 for paint job, markings, etc.
d. 1 to 10 for construction
Racing Rules:
1. Normal IMPBA driving rules will be followed.
2. Only the registered owner can race his 1/10th FE unlimited.
3. Heat races will be 6 laps in length and will follow standard IMPBA starting procedures. The last boat running rule may be used.
4. Cutting or hitting a buoy in mill time or during the race shall incur a 50 point penalty.
5. Normal heat racing rules apply with each heat will be limited to no more than 6 boats raced together at any one time.
6. If any removable parts (cowling(s), wing(s), dummy engine, driver, etc.) fall off during a heat, except as the result of a collision, that boat will receive no more than sixth place points for that heat. This penalization does not affect the finishing placement of the boat, only the points awarded. The points awarded and placements of the other boats in the heat are not affected by this ruling.