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R I V E T T / R O C K E T T  

 

 

12 

 

Nose doubler glued to bottom, 3/8 inch from 
front. Make sure it is on correctly.  

 

Bulkheads 3 and 4 being glued to bottom. Note 
broken cinder block weights. 
 

 

Gluing bulkhead 6 to the stringers. Be sure it is 
not twisted or warped. 

Glue  the  nose  doubler  to  the  bottom,  3/8 
inch back from the front edge. Be sure that 
the  nose  doubler  is  installed  correctly.  If 
you are not sure, check it against bulkhead 
1. 

 

 

 

 

Putting it together 

Slip  the  framework  over  the  bottom,  and 
slip the tabs of bulkheads 4 and 5 into the 
slots in the bottom. 

Place weights  on the bottom to keep it flat 
against the building board. 

If  bulkheads  4  and  5  fit  tightly  to  the 
bottom, wick thin  CA into the joints and hit 
with accelerator. 

DO NOT glue bulkhead 3 to the bottom! 

 

 

 

Glue  and  double  glue  bulkhead  6  to  the 
side  stringers.  Be  sure  bulkhead  is  90 
degrees  to  the  bottom.  Side  stringers  will 
overhang  bulkhead  slightly.  We  will  trim 
these later. 

 

 

 

 

Summary of Contents for RIVETT

Page 1: ...Z I P P M A N U FA C T U R I N G Zippkits R C Boats BUILDING INSTRUCTIONS 2007 2008 Zipp Manufacturing 750 Ball Road Frankfort New York 13340 866 922 9477 www zippkits com...

Page 2: ...s 11 Sponson Non Trips 13 Sponson Bottoms 12 Rear Non Trips 17 Sealing Interior 19 S E C T I O N 3 E Q U I P M E N T Radio Box 15 Fuel Tank 31 Running Hardware 26 Engine mounting 30 Shaft and Stuffing...

Page 3: ...children without close adult supervision Here are a few safety tips Never operate your boat alone If you get hurt you may not be able to drive for help Never ever operate your boat in an area where th...

Page 4: ...to an aerodynamically sound design You can build this boat without having the engine or radio but it does make it easier to have them available when you build You can use any gasoline engine as long...

Page 5: ...rit paper Drill with bits Right angle drill or attachment Square FLAT Workbench 3 wood blocks x 2 x 10 1x stock or ply 3 4x 10x 48 MDF or ply 1 ounce Thin CA glue and accelerator Good quality 30 minut...

Page 6: ...ne Tuned pipe 2 channel surface radio with 1 standard and 1 heavy duty servo 100 in oz minimum Throttle pushrod 2 56 or 4 40 Size with Clevises 2 4 40x12 Pushrods and a OD carbon pushrod 2 pushrod sea...

Page 7: ...s flat The entire boat will be built on this so make it right The Frame We are ready to start the build Let s identify the parts in the sheets Don t remove the parts until you actually need them as so...

Page 8: ...R I V E T T R O C K E T T 6...

Page 9: ...E T T R O C K E T T 7 We like the Great Planes 11 inch bar sanders Use good quality epoxy and finishing resin Your life will be much easier with one of these Acid brush trimmed for fast epoxy applica...

Page 10: ...much easier to sand the parts once they are out of the sheet While the parts are still in their sheets use a pencil to mark each part with the name and which side is right or left as the parts only fi...

Page 11: ...turn fin doubler is glued to the proper side of bulkhead 3 Make sure the doubler will be on the front inside of the bulkhead When you are sure you have it correct glue the doubler to the bulkhead wit...

Page 12: ...ur building board with waxed paper or clear plastic wrap We don t want to glue the boat to the building board Start by assembling bulkheads 1 2 and 3 to the side stringers Make sure the bulkheads are...

Page 13: ...bulkhead 3 being careful to align the bottom part flush with the step in the side stringer Fit bulkheads 4 and 5 making sure that they fit tightly to the side stringers Wrap a rubber band around bulk...

Page 14: ...d correctly If you are not sure check it against bulkhead 1 Putting it together Slip the framework over the bottom and slip the tabs of bulkheads 4 and 5 into the slots in the bottom Place weights on...

Page 15: ...k under bulkhead 1 for support Double glue bulkheads 4 and 5 to the sides and bottom Use accelerator Wrap your 3 4x2x10 gluing block with waxed paper Slip it under bulkhead 1 to support the bottom whi...

Page 16: ...e center area of bulkhead 2 as it will be removed later DO NOT glue bulkhead 3 to the bottom yet Glue the nose portion of the bottom to the sides aligning the front tip of the sides to the bottom Use...

Page 17: ...as a cutout for the carb Test fit the rails as follows Put the right rail in the slot in bulkhead 1 Push the rail against bulkhead 3 so that it bows back slightly The rail will snap into place Do the...

Page 18: ...ms and sides Start with the side chine Slip it into the notches in the outside edge of the bulkheads Put the front tab into the side stringer seating it fully If the chine doesn t seem to fit correctl...

Page 19: ...ime to get the sponson transoms square as the turn fin will be bolted to one of them If not square the boat will not track straight Sponson Non Trip With the hull upside down use your wood plane to be...

Page 20: ...30 minute epoxy Using your special epoxy brush put a coat of epoxy on the chines and bulkheads where the sides will touch Also seal the chines at this time as they will be difficult to seal after the...

Page 21: ...east 2 hours Repeat on other side When the non trip sides have fully cured remove the tape and clamps Sponson Bottoms Plane and sand the sides even with the sponson bottom Take your time here as this...

Page 22: ...eft and right inside didn t you Quickly tape the sponson bottoms tightly to the sponsons Be sure that the inside edge of the sponson bottom is aligned as well as you can get it It should be flush Also...

Page 23: ...weighted on gluing block so that it remains flat Sponson bottom resting squarely on bench We just want to make sure that both sponsons are resting squarely on the table with the transom shimmed inch...

Page 24: ...ile the bottom sheet cures Radio Box Remove all of the radio box parts Two long sides two short sides the top and bottom as well as the 1 8 ply top with lid Sand all the parts smooth with 80 Lay a pie...

Page 25: ...ng on top Put glue on the edges and join the two box halves on the bench Lightly sand the bottom of the box Glue on the bottom Lightly sand the top Glue the radio box top on This is the 1 8 inch Birch...

Page 26: ...emove the lid from the 1 8 ply radio box top Sand the edges smooth Glue the 1 8 ply top to the radio box It has a slightly larger hole for the lid so try to center it so that the lip is even all aroun...

Page 27: ...so the part doesn t become a permanent part of your bench When dry sand each mount smooth with 80 Get your servos Hold the servo at the end of the mount mark the hole locations in the ply Be sure to l...

Page 28: ...way as you did the rudder servo Drill 3 8 holes where the pushrods will exit Remove everything from the radio box and coat the inside and outside with finishing resin Be careful not to get any buildu...

Page 29: ...p sides are designed to go inside of the hull between the sides and bottom They must be beveled in order to fit Hold one of the rear non trips near the back of the hull and mark it for the bevels need...

Page 30: ...rip in place Rear View of non trips installed Transom being glued in place Transom When the rear non trips are done sand the rear of bulkhead 6 Glue the transom to the rear of bulkhead 6 using 30 minu...

Page 31: ...1 8 inch to the bottom Aim the engine towards the hole in bulkhead 3 Use a inch rod or long bolt to align the engine to the hull Push the rod from the bottom through the slot and hole in bulkhead 3 an...

Page 32: ...ube The stuffing tube is a piece of 11 32 brass tubing about 3 1 2 inches long Rough up the outside of the tube with coarse sandpaper Slip the tube onto the 5 16 tube until it is within inch of the co...

Page 33: ...ve anything for at least two hours Deck Supports Sand the two deck supports Glue the deck supports into the notches in the bulkheads using medium CA Start at the rear and glue to each bulkhead When yo...

Page 34: ...uch It s pretty funny to get the inside sealed and see the side pop off the boat because you thinned the sealer too much Don t ask Start from the front Using a brush coat all areas of wood inside the...

Page 35: ...rk a centerline along the length of both mounts On one of the mounts mark lines from both ends On the other mount mark the center Drill 3 16 holes at the intersections of your lines Hold the rear moun...

Page 36: ...nd lock washers bolt the mounts to the radio box Sand the bottoms of the mounts Cut 3 little pieces of masking tape about inch square Put these on the blind nuts so that epoxy cannot get into the nut...

Page 37: ...rut to the center line and tighten the screw Take a step back and eyeball the strut to make sure it and your center line are straight If all looks good mark and drill the other 3 holes Mount the rudde...

Page 38: ...tube where the stuffing tube ends Remove the shaft tube and heat the area around the mark with a torch until it changes color This will anneal the brass tubing making it soft and easy to bend Only hea...

Page 39: ...of the drive dog Subtract inch from this measurement This is the amount to cut off the front of the cable to leave a inch drive dog to strut gap Exhaust We used a quiet pipe in our hydro and recommend...

Page 40: ...ttle is setup your throttle servo will either be on the right or left of the radio box We used the straight pushrod vertical bell crank throttle linkage on the prototype and prefer it Whatever method...

Page 41: ...r view Turn fin Assemble the turn fin to the bracket so that it is on the inside of the bracket If you mount the fin on the outside of the bracket it would cause the water to lift the right sponson in...

Page 42: ...ply deck with the epoxy glass cowling glued to it You should have already sealed one side of the cowl deck Glue the two halves together Do not adjust the way the decks come together as they are desig...

Page 43: ...ral hours or overnight You can spray the lite ply deck again after a few hours if you want It will help the cowl deck to conform to the compound curve of the hull While the deck is drying grab the epo...

Page 44: ...otation as epoxy glass does not float It s not a question of if you will lose your cowling it s when Use white polystyrene foam and 5 minute epoxy to glue it into the cowling You must block the air fr...

Page 45: ...ough to the air exit carrying very little heat with it We need it to go into the front and go around the bottom of the hull before going up to the dashboard See page 59 for details Top Deck This is wh...

Page 46: ...mp one deck to the deck support near the front and rear Line up the rear of the sponson with the deck and line up the deck inside edge with the centerline you drew on the deck support When the deck is...

Page 47: ...d or piece of thin plastic or wood for the next steps Mix about ounce of epoxy finishing resin Using a squeegee or credit card coat the bottom of the deck with resin This seals the deck bottom Use you...

Page 48: ...d sand the deck flush and keep the radius at the rear of the sponsons smooth The nose should be rounded off and blunt Do not make the nose sharp as this will make the hull unpredictable at speed Keep...

Page 49: ...Continue taping the front portion Make sure that the inside edge of the deck matches your centerline on the deck support It is important that the space between the deck halves is 6 1 2 inches as this...

Page 50: ...procedure on the other side Make sure the hull stays weighted on the bench until the deck center is done Glue the sponson decks on the same way You may find it easier to bend these decks if you soak...

Page 51: ...t this hatch based on the location of your engine The hatch should measure about 3 1 4 by 1 1 4 inches Carefully measure and mark the position of the hatch directly on the deck Use a fine tooth razor...

Page 52: ...cured test fit the hatch in place It should be fully retained by the cowling Ride Pads The ride pads go on the bottom of both sponsons and are the actual ride surface for the hull These lift the hull...

Page 53: ...e and rear The hull is now ready for finishing Note that the photos show ride pads being installed on a finished boat but the same thing applies to the bare hull Finishing Sand the entire hull with 80...

Page 54: ...allenging but will use far less resin and be faster to cover When you are sure that all areas on the top and sides are covered let it cure overnight When cured sand lightly with 80 Just make it smooth...

Page 55: ...mpressed air or a vacuum to remove the dust on the inside and outside of the hull Wipe down the entire boat with alcohol Use a tack cloth to lightly wipe all surfaces Spray your color coats When cured...

Page 56: ...way in Leave the strut loose in the brackets Put the boat on a flat surface You can hang the turn fin over the side of the table Block up the transom 7 8 inch from the table Push the strut to the tab...

Page 57: ...collet Leave a inch gap between the drive dog and strut Tighten the collet Wrap your receiver failsafe and battery pack in foam rubber Mount the switch Turn the transmitter on first then the receiver...

Page 58: ...mly attached Use those teeny little tie wraps at each fitting Center of Gravity The CG is very important to 1 inch behind the sponson transom Check the CG with everything installed and no fuel in the...

Page 59: ...gine This will help to break in the strut bushings At the pond Make sure your transmitter and receiver batteries are fresh or fully charged Do a range check with your transmitter antenna down and note...

Page 60: ...self and make sure you have a stream of cooling water If you don t see any bring it in pronto If all looks good hit it Notice how the boat rides in the straights Does it lean or pull to one side Is th...

Page 61: ...R I V E T T R O C K E T T 59...

Page 62: ...R I V E T T R O C K E T T 60 Hatch support detail...

Page 63: ...R I V E T T R O C K E T T 61...

Page 64: ...R I V E T T R O C K E T T 62...

Page 65: ...unstable Strut too high CG too far back Boat needs left trim to go straight Prop walk Prop walk Prop walk Turn fin not aligned correctly Prop walk Boat slides too much in turns Turn fin bent Turn fin...

Page 66: ...the 7 8 inch measurement is a starting point The goal is to get the hull to ride level or just a teeny bit tail high at full speed If you have to push the strut down to 1 inch or 3 inches to get the...

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