Modern Rodding TECH

InTheGarageMedia.com

upholstered bomber seats
1. Not all bomber seats have to be exposed metal—although that’s a cool look. Here’s an example, seen elsewhere in this issue, of what can be done with a little upholstery.
By Brian Brennan Photography Courtesy of Speedway Motors
Tradition Meets Your Backside typography
The Speedway Motors Vintage Bomber Seat is a Great Way to Implement Tradition
B

uilding a hot rod with a traditional flare usually means the seating will be comprised of a pair of formfitting aluminum buckets; something from the vintage-era bomber seat. For the aficionado it would be the seats characteristically found in a World War II–era Fairchild PT-19 trainer. That’s great, but today it would be a lot easier, quicker, and more cost effective to begin with a Speedway Motors (SM) Lightened Aluminum Hot Rod Bomber Seat DIY Kit (PN 91070199). It comes disassembled but well within the capabilities of the average hot rodder to construct. (This kit also comes without the “lightening holes,” if so desired.)

There are well over a 100 rivets used in the SM single-bomber seat. As you can imagine, there is a military spec on how rivets are to be used. In the SM application, authentic aviation rivets are placed to replicate the bomber seat appearance. In their use, SM opted for the “Lightened Aluminum” seats, which means there are 2-inch dimple die holes added to the seat bottom, back, and side brackets. There is also a pair of slots (3-7/8 inch) provided to allow the use of what should be mandatory: seatbelts. This is a DIY kit and is intended that you assemble the provided panels. Anytime “DIY” is used this means tools will be required. The implements needed are common and most rodders should have most, if not all. Check your toolbox to see what you have and if you don’t, or are missing something, you can check in with SM. Their catalog offers the following: an air hammer (PN 72819750) with control pressure regulator, a 3/16-inch rivet set (PN 91010012), a bucking bar (PN 9101500), 3/16-inch Clecos and Cleco tool kit (PN 9108575), which contains 10 fasteners, and 3/16-inch rivets included with the seat kit. (A note on a bucking bar: They’re made from heat-treated cast iron, any sharp edges are removed, and working surfaces are polished.) Should you find a “gap” in your toolbox SM will come to the rescue. You can order the required tools directly from SM.

Obviously, you will need two kits to have a pair of seats. Manufactured in-house at SM, each seat weighs approximately 7 pounds, is made from hand-formed 0.090-inch aluminum plate, and features a 0.340-inch (approximately 11/32-inch) rolled bead edge for both safety and comfort. The seat has an overall height of 22-1/2 inches, width of 17-1/4 inches, a 13-degree seat layback angle, and 6-degree “popup” for thigh support and features an overall inside width of 17 inches. (I have several sets of bomber-style seats and have used lightweight foam pads for added comfort.) They come in an aluminum finish that you can then leave as-is, or you can add a brushed, polished, painted, or powdercoated surface.

When it comes to mounting the bomber-style seats you have options. Begin with fabricating your own mounts or go directly to the floor. SM also offers seat brackets that can be bolted, riveted, or welded to these seats. Now, these brackets were designed for other, more substantial bomber seats offered by SM. According to them, they should work on the DIY seat kits.

Follow along as we show how one of these lightweight bomber seats is assembled. Next stop is your imagination as to how and where you can use these.

Joe McCollough shows off his handwork in the making of one of Speedway Motors’ (SM) bomber seat kits
2. Steeped in World War II history, the bomber seat has found a home in the world of traditional hot rods. Here Joe McCollough shows off his handwork in the making of one of Speedway Motors’ (SM) bomber seat kits.
parts of the SM Lightened Aluminum Hot Rod Bomber Seat DIY Kit (PN 910-70199) sit on a table, ready for assembly
3. The SM Lightened Aluminum Hot Rod Bomber Seat DIY Kit as delivered and ready for you to assemble (PN 910-70199).
the required tools for assembly are laid out on a table, including an air hammer (PN 72819750) with control pressure regulator, 3/16-inch rivet set (PN 91010012), bucking bar (PN 9101500), 3/16-inch Clecos and Cleco tool kit (PN 9108575), and 3/16-inch rivets
4. The required tools are in most hot rodders’ toolboxes. If not, here is what’s required, and you can get the tools from SM. Required for the build is an air hammer (PN 72819750) with control pressure regulator, 3/16-inch rivet set (PN 91010012), bucking bar (PN 9101500), 3/16-inch Clecos and Cleco tool kit (PN 9108575), and 3/16-inch rivets included with seat kit.
mechanic uses a 3/16-inch drill bit to remove any small burrs from the holes in each part
5. Preparation is always key. After receiving your kit make sure to clean out all the holes with a 3/16-inch drill bit, removing any small burrs.
mechanic attaches the seatbell panel to a part using Clecos
6. Once you are ready to go, the first assembly step is to attach the seatbelt panel to the side using Clecos.
mechanic applies rivets to a part, first making  sure the rivet head is facing out on the seatbelt panels
7. Before installing the first rivet here’s an obvious check. Make sure the rivet head is facing out on the seatbelt panels. Rivet set (tool for forming a head) goes on rivet head.
the bucking bar is placed to the inside/back of the rivet
8. Place the bucking bar to the inside/back of the rivet.
view of the first rivet installed
9. Note the first rivet installed while the Clecos remain in place holding the seatbelt panel.
mechanic continues riveting around the seatbelt panel until its complete
10. Continue around the seatbelt panel installing the rivets until the job is complete.
mechanic continues the riveting of the seatbelt panel
11. This is accomplished by removing a Cleco and then installing the rivet and continuing until complete.
with the seatbelt panels installed, the mechanic begins installing the corner brackets
12. Once seatbelt panels are installed you can move onto the corner brackets, which the seatbelt panels are attached to. Note Clecos are installed in the corner bracket and ready to begin.
mechanic holds a bomber seat part with Clecos along a bracket
13. The bottom corner bracket is positioned via Clecos. Next step is to rivet the bracket into position.
mechanic rivets the corner bracket to the seat part
14. Next rivet the corner brackets. Remember, the rivets are part of the seat kit.
view of a properly oriented corner bracket piece
15. It’s all about having each of the pieces in correct relationship to one another. Here the corner bracket is properly oriented. It’s possible to incorrectly install, so be careful. All angles should match at the ends (as shown here).
a finished side; seatbelt bracket and corner bracket are now one component
16. Here is one seat side finished: seatbelt bracket and corner bracket are now one component. Finish both sides before moving on.
Clecos are used to hold the seat back and bottom together
17. Here the seat back and the seat bottom are attached using the Clecos. Riveting is next.
using the help of Clecos, the mechanic attachs the seat back to the seat bottom
18. With Clecos in place, the rivets are now used to attach the seat back and bottom together.
with seat back and bottom attached the already-assembled sides are attached
19. With seat back and bottom attached the already-assembled sides are next to be attached.
using the rivet tool and bucking bar, the mechanic begins the riveting process
20. Once Clecos are in place the rivet process starts. Note the use of the rivet tool and bucking bar.
after completing one side, the mechanic moves on to the next
21. With one side complete it’s time to move onto the other side.
the finished SM Lightened Aluminum Hot Rod Bomber Seat, featuring pre-drilled "lighted holes" sits on a work table top
22. There you go. A finished SM Lightened Aluminum Hot Rod Bomber Seat Kit. The use of the word “lightened” means that holes come pre-drilled. You can also get the kit without the “lightened holes” drilled.
another bomber seat option from SM, including the pad and cover and sliders
23. There are other bomber seats available from SM, such as PN 910-0012. It has the pad and cover and sliders.
another version of the Lightened Bomber seat featuring dimpled holes
24. Another version is the Lightened Bomber seat (note dimpled holes), PN 910-0013. It too has the pad with cover and sliders.
Lightened Bomber Seat with pad and cover plus mounting brackets
25. One more; Lightened Bomber Seat with pad and cover plus mounting brackets, PN 910-9996.
Table listing Speedway Motors WW2 bomber seat kit parts information
Speedway Motors
(888) 503-4220
speedwaymotors.com
Modern Rodding

VOLUME 3 • ISSUE 20 • 2022