- Is it permissible to add blocks to deflect the backstay, traveller control and mainsheet fine tune to the cockpit sole or sides?
ALLOWED per Rule 10.3 "Fairleads, cleats....are the only additional deck gear items permitted".
- Is it permissible to add spinnaker twing fairleads so that they may be adjusted from a better position?
ALLOWED per Rule10.3
- Is it permissible to replace the factory supplied spinnaker pole bridle with a spectra line?
ALLOWED if spinnaker pole and bridle conform to Rule 22.0 Spinnaker Pole Weight.
- Is it permissible to use silicone or a similar sealant around the drive shaft for the sail drive?
NOT ALLOWED per Rule 3.4 and 8.6
- Is it permissible to replace the backstay batten flicker with a stronger one or modify the existing one?
The batten flicker may not be removed or made lighter. It may not be replaced with a non-standard part. Reinforcement to the existing appendage is allowed.
- Is it permissible to use a jib hank system instead of a luff tape and luff groove device system as supplied on a stock boat?
NOT ALLOWED per Rule 3.4, 8.3, 18.3, 27.1, and 35.1
- Is it permissible to fair and template the rudder and keel?
ALLOWED as per Class Rule 8.0, 11.0 and 11.6 using templates from the Primary Builder.
- Are fractional asymmetric spinnaker allowed?
ALLOWED as per Rule 28.2, and "Fractional asymmetric spinnakers may have equal or near equal luff lengths and be symmetric".
- Is it permissible to replace a new sail with warranty problems regarding shape or construction, that has been used minimally, with a new sail?
ALLOWED with inspection and approval of Class Measurer and documentation from the sailmaker.
- Is it permissible to purchase unused sail buttons from the preceding calendar year?
NOT ALLOWED per Rule 25.5 "...each yacht is permitted three new sails per calendar year (January 1 - December 31)".
- Is it permissible to use a carbon fiber headboard for a Mumm 30 mainsail?
NOT ALLOWED per Rule 25.4. Carbon fiber may only be used for battens.
- Are heavy footlines, big rings etc. allowed on the mainsail?
NOT ALLOWED. As per Rule 26.3 they are considered as correction weight, which is allowed only at the headboard.
- Is it permissible to add a 2:1 mainsail halyard purchase?
NOT ALLOWED per Rule 35.1 -...multiple purchase halyards
- Is it permissible to replace the electrical panel with an identical panel, but put it in a different location in the boat?
NOT ALLOWED per Rule 8.6, it is suggested to add a clear plastic cover to protect the panel.
- What is the procedure to repair and re-measure a damaged boat?
Damages shall be repaired and re-measured as per Rule 3.3, 5.2 and 8.5.
- How does the Rule pertain to the sale of used sails?
If an owner or charterer purchases a used Mumm 30 sail which is already buttoned, they must purchase the royalty and it will be considered part of the extra three sails per year under Rule 25.5. The owner who sells their sail is not entitled to additional sails for that year.
- Is it permissible to use Spectron 12 Plus for the permanent backstay?
ALLOWED as per Carroll Marine Engineering Change Order # 011. It is also allowed for replacement of existing backstays.
- Within the Class Sail Limitation Rule, is it permissible to replace sails damaged or destroyed while ot at a Mumm 30 One Design Regatta?
NOT ALLOWED per Rule 25.5, only sails damaged during a regatta may be replaced at the discretion of the Race Committee.
- Is it permissible to utilize a Lewmar 8 alloy winch handle with power grip instead of standard 8" locking winch handle?
ALLOWED per Rule 10.3.c as the replacement handles meet the same specifications outlined in the Rule.
- Is it permissible to replace the factory supplied cushions with Bottom Siders 1.5" vinyl coated closed cell foam cushions of the same size, shape and weight as the originals?
ALLOWED as the replacement cushions meet the same specifications as the factory-supplied cushions. .
- Is Category B allowed for National or Regional Championships?
NOT ALLOWED per Rule 2.6
- What is the brokerage boat sail allowance?
Brokerage Mumm 30 owners are entitled to the base inventory of eight sails outlined in Class Rule 25.1 plus three additional sails per calendar year. Owners may buy all new sails for the inventory, declare existing sails for all of the inventory, or declare some existing sails and build some new sails for the inventory. The inventory must be registered with Farr International or the RORC Rating Office for a cost of $30..00 to transfer ownership and make them eligible for use in Mumm 30 Class events
- Is it permissible to use the spinnaker cloth utilized by Team Prada in the 2000 America's Cup for Mumm 30 spinnakers?
NOT ALLOWED per Rule 1.0 "...The Class Rules are intended to ensure that Mumm 30 ownership and campaign costs are contained..."
- Is it permissible to replace the factory supplied propeller with a Flex-o-fold model propeller?
ALLOWED per Rule 13.1 and 13.4 with approval from the Management Group and Designer. Propeller shall be supplied by the builder and shall conform to Rule specifications.
- Is it permissible for the Italian Mumm 30 Class to distribute an additional two buttons per year for their circuit?
NOT ALLOWED This is an International ISAF Recognized Class and regional fleets shall follow Class Rules.
- Is it permissible to use a Blue Streak batten flicker for the batten flicker?
ALLOWED. It is a standard part that meets the weight, strength and dimensions of the existing factory supplied blue Aquabatten or RBS gray (Epoxy 15 x 230) battens.
- Is it permissible to use stainless steel rings instead of the factory supplied blocks for the spinnaker and jib barber hauler?
As per Class Rule 10.3 the Management Group may permit removal of the blocks. The blocks may be replaced with stainless steel rings.
- Is it permissible to change the spinnaker twings from 2:1 as shown on Drawing # 101 A to 1:1?
As per Class Rule 10.3, Management Group may permit the change, as there is no advantage to lowering the power ratio. All builder supplied items must remain in their original position except as in #27
- Is it permissible to use micro ratchet blocks for the backstay?
NOT ALLOWED As per Class Rule 10.3 and Drawing #101 A.
- Is it permissible to replace existing deck hardware with different parts?
NOT ALLOWED As per Class Rule 10.3 and Drawing #101 A. It is permissible to replace broken or worn deck gear with parts from Lewmar or their authorized supplier, that meet or exceed the same weight and breaking strength as original equipment.
- Is it permissible to replace halyard snapshackles?
ALLOWED, as long as they meet or exceed the same weight and breaking strength as the original equipment.
- Is it permissible to add a pad eye and turning block or a strop and ring on deck in order to windward sheet the jib?
NOT ALLOWED As per class rules 3.4, 8.6, 10.3
- Is it permissible to replace the rigging screw with other standard adjustable rigging screws such as the Ronstan C Lock turnbuckle?
NOT ALLOWED As per Class Rules 3.4, 20.1 and 35.1
- Is it permissible to windward sheet the jib?
ALLOWED. As per Interpretation 32, extra deck gear is not permitted.
- How does the Class Rule for sail limitations apply to charterers?
As per the Class Rule 25.5, each yacht is permitted to have the base inventory, and to add three new sails pere calendar year. The owner of a boat purchases the buttons, and they are registered in the owners name for that boat. If the owner of a boat wishes to charter another boat, he/she may either use all the sails belonging to the owner of the chartered boat, or he/she may use all their own sails. If an owner has more than one boat, sail inventories may not be transferred between boat.
- Is is permissible to add hardware to the boom for stowing the spinnaker pole alongside the boom during racing?
No. As per Class Rule 3.4, Modifications
- Is it permissible to have a change of ownership if the attempt is perceived by the Management Group as an attempt to circumvent the spirit or intent of the sail limitation rule?
No. As per Class Rule 5.6 a One Design certificate will not be issued to the new owner in such circumstances. The Management Group reserves the right to challenge transfer of ownership if this is perceived as a transparent attempt to circumvent the nature of the Class Rules (legal validity of the transfer of ownership notwithstanding). Cases shall be reviewed on an individual basis by the Management Group. The M! anagement Group further reserves the right to recommend any additional action that may be deemed necessary under the Class Constitution.
- Is it permissible to move the spinnaker block item #33 from drawing 101A to padeye #40 which is further forward?
Yes. According to Class Rule 10.3, the Management Group may permit movement of this block. Either position is permissible.
- Is it permissible to replace the spinnaker block item #33 from Drawing 101A with a ratchet block?
Yes. According to Class Rule 3.4. The spinnaker block may be either the original block, Lewmar part number 2990 1651, or a 60mm VF Single Ratchet Block, Lewmar part number 2990 1661.
- Is it permissable to reinforce the bow and stern pulpits by adding a horizontal member, of equal gauge and diameter as the rest of the pulpit, at approximately the height of the lower lifeline, which connects the fore and aft legs of the pulpit?
Yes. As per Class Rule 10.3, Management Group may permit the change.
- Is it permissable to add the two stainless steel vertical struts located at the forward edge of the sink and cooler on boats built by dk Composites to Carroll Marine and Ovington boats?
Yes. As per Class Rule 10.3, the Management Group may permit the change.
- Is it permissable to create a small gusset under each stanchion to be located inside the boat and laminated to the hull and deck solely to creat a stronger support for the stanchion base?
Yes. As per Class Rule 10.3, Management Group may permit the change. The gusset may only be used to reduce the flex of the deck under the stanchion and shall not be sized in such a manner that it would act as an additional bulkhead to the hull.
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Is it permissible to replace the original headsail luff groove device with a Harken Carbo Foil
Yes. As per class rules 3.4, 27.1, the management group may permit the change. The headsail foil may be replaced with Harken Carbo Foil, part number 7000.12, provided the extrusion is cut to exactly eleven meters.
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Is it permissible to replace two blocks on the mainsheet fine tune with ratchet blocks?
Yes. According to Class Rule 3.4. The mainsheet fine tune blocks may be the original block, Lewmar part #29900211, Lewmar's equivalent replacement, part # 29901321, or the 40mm Smartratchet, Ronstan Part # RF 42100.
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Is it permissible to display advertising on the mast?
No. Advertising may only be displayed where specifically allowed in Class Rule 2.6.1.
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Is it permissible to rig a trolley system on the boom for the spinnaker pole using shock cord?
No. As per Class Rule 3.4 the modification shall not be permitted.
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Is it permissible to rig a shock cord retainer for the mast head spinnaker halyard?
Yes. As per rules 3.4, 10.3, 19.11, 19.14, the addition will be permitted provided all halyards are rigged and used as originally intended.
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Is it permissible to replace broken or worn out deck hardware on Carroll Marine, Ovington, Mc Dell and DK boats with the Harken hardware supplied on new USWatercraft M 30s?
Yes. All hardware replaced with Harken equipment shall be part #’s supplied by the builder as specified on USWatercraft Drawing #20129 and shall not be relocated from original builder location as specified on Carroll Marine Drawing #338-101A and as recorded on each boat’s MCCB.
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Is it permissible to use Harken Winch Mounting Rings, part #’s 947737 and 947738 to mount Harken winches for making maintenance easier?
Yes. The mounting rings do not increase the performance, decrease the weight, or decrease the strength of the winches.
