SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Mar 25, 2012, 07:47 PM
Registered User
Joined Dec 2004
3,843 Posts
Build Log
1922 Gold Cup Racer "MISS SEVERN"

Well here we are again with another build in it's entirety for the 1922 Hacker Gold Cupper “Miss Severn”, originally raced under the name of “Arab VI”, coming in second to the “Packard Chris Craft” for the cup.

The model was designed using the original plans which were supplied for free by Motor Boating Magazine in 1923, for the newly established rules for the “Gentleman’s Racers” for the APBA Gold Cup. John L Hacker was called upon by the magazine to draw up the plans for the new class, since his design , even though losing the Packard Chris Craft, had turned in the fast lap speed of all the contestants.

As I start posting the build I am in the finishing stages of the prototype model to be entered at the Toledo WEAK Signals Expo, at which time we will be taking orders for the kit release a month or so later.
frankg is online now Find More Posts by frankg
Last edited by frankg; Aug 25, 2012 at 08:00 PM.
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 25, 2012, 08:08 PM
Registered User
Joined Dec 2004
3,843 Posts
1. Prepare a laminated partial board shelf 12 wide by 46 long, purchased at your local home building supply. Draw a center line down the length of the board. Using a square, draw a perpendicular line 1 in from the end of the board and then every 2 for the length of the board. These will be your reference lines to keep the frames square to the keel.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:15 PM
Registered User
Joined Dec 2004
3,843 Posts
2. The keel and stem post are the first items to be assembled. Both the keel and the stem post are made from two pieces (left and right side) of laser cut 3/16 thick hard balsa, which have to be glued together to make a 3/8 thick keel and stem post. The parts are located on laser sheets S6 & S7
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:18 PM
Registered User
Joined Dec 2004
3,843 Posts
3. The balsa keel parts (KL) & (KR) are glued together with medium CA glue on a flat waxed paper surface, making sure to alien the two keel haves perfectly. The same is done with the two laser cut stem posts (L & R).
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:20 PM
Registered User
Joined Dec 2004
3,843 Posts
4. Now on a flat waxed paper surface assemble and glue the stem post to the keel assembly with medium CA glue.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:23 PM
Registered User
Joined Dec 2004
3,843 Posts
5. Now take the keel doubler (KDL) from laser sheet S2 and place it on the flat waxed paper surface, Take the assembled keel and stem post assembly and place it position next to the keel doubler. Using 12 minute epoxy glue, carefully coat the keel doubler, taking care not to put any glue on the inside of the dotted laser lines for the rudder stuffing box, propeller stuffing box, and the motor mount cut out of the keel. Once glued place the balsa keel assembly on to the keel doubler aliening the frame slots perfectly. Weight can be place on the balsa keel to assure a good bond of the glued surfaces.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:25 PM
Registered User
Joined Dec 2004
3,843 Posts
6. Once the epoxy glue has hardened, carefully cut out the propeller stuffing box and rudder stuffing box slots from the 3/8 balsa keel. DO NOT CUT THRU THE KEEL DOUBLER.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:29 PM
Registered User
Joined Dec 2004
3,843 Posts
7. With the stuffing box slots cut out of the balsa keel, proceed to take the second keel doubler (KDR) and position it on top of the balsa keel aliening the slots and mark were the front of the keel doubler is on the balsa keel. Precede to coat with epoxy glue the balsa keel, taking care not to put glue into the stuffing box slots, up to the marked front of the keel douber. Once in position and the slots are aliened, weight can be place on the keel doubler to assure a good glue bond of the parts. This will complete the boxed keel and stem post assembly.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:35 PM
Registered User
Joined Dec 2004
3,843 Posts
8. The next items to be assembled are the left and right shears. The parts used are from laser sheet S3, and are for the left shear (LS1, LS2. & LS3) and for the right shear (RS1, RS2, &RS3). On a flat waxed paper surface assemble the left and right shears with medium CA glue joining the #1 and 2 parts on their splice joint and then gluing the #3 part splice doubler on top of the joint, making sure that the piece is in-between the frame slots of the shear.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:43 PM
Registered User
Joined Dec 2004
3,843 Posts
9. Frames #F7, F8, F9, & F10, must be prepped before being assembled on the building board. All the frames will have laser etched outlines of the areas to receive the glue blocking for the side interior ceiling boards. The blocking is made from 1/4 x 1/4 x 36 balsa square stock. Once the blocking is cut to the lengths indicated by the laser etched lines, they are glued in place using medium CA glue.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:47 PM
Registered User
Joined Dec 2004
3,843 Posts
10. The remaining frames must be removed from the laser cut sheets. Carefully start placing the frames in their respective slots in the keel and stem post assembly. Once all the frames are installed invert the entire keel, stem post and frames assembly onto the building board. Line up the stem post center line over the drawn center line of the building board. Tack glue the foot of the stem post in position on the building board. Next take the left shear assembly and carefully install it into the shear line slots of each of the frames. DO NOT GLUE IN PLACE AT THIS TIME. Now assemble the right shear into the frame slots.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:49 PM
Registered User
Joined Dec 2004
3,843 Posts
11. At the transom frame #F11, make sure that the center of the frame is on the center line of the building board and parallel to the perpendicular reference lines on the building board. Tack glue frame #F11 to the building board with the medium CA glue.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:50 PM
Registered User
Joined Dec 2004
3,843 Posts
12. At frame #F6, make sure that the center of the frame is over the center line of the building board, and parallel to the perpendicular reference lines and tack glue the feet of the frame down to the building board with the medium CA glue.

frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:52 PM
Registered User
Joined Dec 2004
3,843 Posts
13. Tack glue the shears into the stem post and at frame #F11 only at this time with the medium CA glue. Make sure when gluing the shears into the frames that they are all the way into the shear slots.
frankg is online now Find More Posts by frankg
Reply With Quote
Old Mar 25, 2012, 08:53 PM
Registered User
Joined Dec 2004
3,843 Posts
14. The next two frames to be glued down to the building board are frames #F3 and #F9. Follow the same procedure for gluing the frame to the building board as the previous frames. Now finish gluing the rest of the frames down to the building board as before. Once all the frames are glued down to the building board, proceed to glue the keel to the frames starting at frame #F6 and progressing to the stem post and the transom making sure that the keel is seated all the way into the frame slots.
frankg is online now Find More Posts by frankg
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Cool Atosis - 1907 Gold Cup Racer Chinewalker Dock Talk 12 Apr 27, 2014 08:53 AM
Sold 75" Gold Wing Edge Racer - LPU hjcolman Aircraft - Electric - Airplanes (FS/W) 2 Mar 15, 2012 11:16 PM
For Sale HP Gold Cup 40 with muffler davedwards Aircraft - Fuel - Engines and Accessories (FS/W) 2 Feb 01, 2012 08:55 PM
Sold NIB Hirtenberger 40 F-RC Gold Cup joemetal Aircraft - Fuel - Engines and Accessories (FS/W) 3 Jan 26, 2012 04:02 PM
Sold Hirtenberger 61 F-RC Gold Cup joemetal Aircraft - Fuel - Engines and Accessories (FS/W) 3 Jan 24, 2012 04:43 PM