Denny Hamlinwas sitting atop the pace charts after 30 laps of the early afternoon Cup follow at Martinsville Speedway. However his day shortly went bitter when a bit of rubber jammed his throttle open, and as a way to scrub pace from the automotive, he turned the steering wheel, sending his automotive crashing backwards into the wall. As quickly because the TV announcers noticed the numerous injury to the best rear, they concluded that the No. 11 crew would wish to drag out a backup automotive. Chris Gabehart, crew chief of the No. 11, and his crew at Joe Gibbs Racing, although, had a unique concept. They introduced in NASCAR’s Hawk-eye Optical Scanning Station (OSS) to judge the injury — serving to them restore a presumed-totaled automotive in mere hours.
This is how they did it.
1:20pm, Saturday
Joe Gibbs Racing personnel and NASCAR officers start inspecting the broken No. 11 automotive. Gabehart was clearly upset to see such a quick automotive in disrepair, however didn’t hesitate in working together with his group to begin chopping off broken panels. It took solely quarter-hour to take away the trunk lid and rear bumper, and expose the broken rear bumper helps. Preliminary observations revealed that the rear bumper helps had crumpled, which meant they’d finished their job to not solely shield the motive force, but additionally assist stop injury to the rear clip and gas cell.
A NASCAR official observes the No. 11 crew and automotive whereas the OSS completes its scans.
Photograph by: Bozi Tatarevic
1:50pm
Mechanics from 23XI Racing joined their Joe Gibbs Racing counterparts to disassemble the rear of the automotive as shortly as attainable, and begin getting ready the automotive for the OSS. The OSS makes use of structured mild scanning to measure bodywork and suspension right down to a tolerance of 0.150 inches and whereas it’s sometimes utilized for scrutineering functions, NASCAR may also open it as much as groups in particular conditions like this to see how far a automotive has shifted from its authentic measurements. As soon as a scan is full, a warmth map is generated evaluating the bodywork to a CAD picture of the automotive that’s saved within the system together with an alignment sheet exhibiting measurements like camber and toe, very similar to you’d see for a road automotive.
Denny Hamlin takes a have a look at the injury on the No. 11 whereas JGR and 23XI crew members proceed to disassemble the automotive.
Photograph by: Bozi Tatarevic
The chance to even take into account all these repairs is made attainable by the modular nature of the NASCAR Subsequent Gen automotive, which permits the chassis and bodywork to be assembled and disassembled in items. The earlier era automotive had a one-piece body, so when incidents like this one occurred, it sometimes meant going to a backup automotive as a restore would necessitate chopping and welding of the structural tubing.
Photograph by: NASCAR
As a result of the Subsequent Gen chassis is constructed round a middle part which is a security cell for the motive force that then has a entrance clip and rear clip bolted to it. These clips then have bumper helps which are bolted to them that act as crumple zones for the automotive. The middle part has 4 factors beneath it which are used as reference factors for the OSS scans. Within the case of the No. 11, they have been in a position to unbolt the broken rear bumper help construction and unbolt the broken bodywork, then shortly scan the remainder of the elements to check them to their earlier measurements.
2:00pm
Crew members pushed the automotive over to the OSS. Fifteen minutes later, they have been again within the storage with a choice to begin repairs primarily based on what the measurements confirmed. A big yellow field appeared on the liftgate of one in all their vans, which mechanics swarmed to seize wanted elements like a brand new bumper help together with bodywork.
The crew of the No. 11 automotive walks a yellow compartment field on wheels to their storage.
Photograph by: Bozi Tatarevic
One other serving to issue to the speedy restore was the storage field that was organized in a method that made grabbing crucial elements simple. The staff employs a 5S group technique for labeling and sorting — which isn’t a shock contemplating that Joe Gibbs Racing runs Toyotas and 5S is a part of Toyota’s Kaizen philosophy.
Three Hours Later…
Elements have been bolted to the automotive and the No. 11 staff was setting wheels right down to the bottom for an additional run by means of the OSS to examine their repairs. The now repaired automotive was in the identical window as what it had proven throughout an earlier inspection. They introduced it again to the storage for some tweaks to the best rear nook as a way to get it to as close to good as attainable.
6:30pm
The automotive was again on the bottom and pushed exterior to check the engine, in addition to confirm that the throttle physique wouldn’t have any further points. After testing, and proud of the measurements and look of the automotive, the No. 11 crew put it away for the evening.
Race day, Sunday
Hamlin’s automotive goes again by means of the OSS and the crew decides to make a few closing tweaks earlier than pushing the automotive to the grid for the race.
Denny Hamlin, Joe Gibbs Racing, FedEx One Price Toyota Camry
Photograph by: Peter Casey – NKP – Motorsport Pictures
The modularity of the NASCAR Subsequent Gen automotive permits for elements to be transferred to a backup automotive pretty simply, however in essentially the most very best conditions, utilizing the automotive you’ve spent weeks engaged on is at all times preferential. Within the case of the No. 11 automotive, the Subsequent Gen automotive was simple to deliver again to life after a major crash and allowed the staff to retain the automotive and pace that they noticed in follow. And in reusing that quick main automotive, in addition they prevented a protracted evening of driving over two hours to their store in Huntersville and spending ten to 12 hours engaged on a backup earlier than making the 2 hour journey again.
As an alternative, they have been in a position to full a restore on the monitor in lower than 5 hours. Permitting the crew members to wrap up earlier than 7pm and be prepared and rested for race day. Sadly for Hamlin, he must begin the race in thirty seventh place. However he would make his method into the highest 15 earlier than lap 100 and finally end the race in fifth place.
