I did not see the car design, I apologise if I missed it and it is over with.
Racecar Design:
FUN-C.C.C.Car-39-a/b "Commoner's Car: Component Catastrophe"
Summary[modular design, jet/air-cooled 14cylinder turbocharged fueld-injected radial engine, layered tires, 5-stage rocket-pod]
Three design goals were made for this project.
1: Create a vehicle that can be integrated into Foreignian society.
2: Create a breakthrough in high-powered engineering technology that could further our military prospects.
3: Win the race.
It has come to our attention that "Finish the race" was given very little consideration...
The design committee addressed the first point by realising that the other two points were completly incompatible. They were, we are assured, executed for behaviour unfitting our glorious nation shortly afterwards, but the damage was done and a proposal already existed to conform to a design doctrine of interchangeability, so that the vehicle could easily be retrofitted towards lower specifications. This theory of Unstable to Naked Conversion Engineering(U.N.C.E.) did slip into the final design and will thoeretically allow the design to be easily retrofitted with an engine of greatly reduced power, a simpler power-transmission-block, greater cargo capacity, and potentially two side-cars. But for now the design simply has its current composition and an alternate of coverings to obscure the absence of such components.
The second point was addressed by designing a new engine, hoped to meet aerial extreme specifications and proportionally surpass anything currently available in our fleet, along with the transmission to handle it. A staged rocket-booster to provide multiple bursts of acceleration, mounted in an attachment-point on the rear, a twin 16mm autocannon turret mounted to the left and a 160mm heavy cannon mounted to the right. The latter two elements were sadly scrapped when it was discovered that armed vehicles would be immediately and permanently diqualified, though the side-wards mounting-points remained.
The third objective mostly involved cancelling all armaments that we thought wouldn't be noticed, as, ultimately, they would be unable to disable sufficient competition to make up for the additional weight.
The end result is a single-seat vehicle with a heavy-duty drive-shaft running between the driver's legs to a force-translation-joint behind the transmission. A raised force-conversion unit that consists of a high-specification gear-box on a crank-raised platform to move it into position to meet the connections. A similar force-generatin unit containing a 14-cylinder twin-radial turbocharged, fuel-injected engine. Air-cooled by an intake-shaft containing multiple extremely high-speed propellors. We are assured that they need to slow down very quickly and remain at such speeds for at least 20 seconds for the lack of cooling-power to result in the engine exploding, well in excess of our predicted requirements! The force-translation-joints are fairly typical enlarged sections of drive-shaft with deep grooves to attach into one another and securing pins to prevent slippage. The fuel-tanks sit behind the driver leadng to long fuel-lines for which we hope someone has been put on a watch-list. At the far-rear of the vehicle is a tube with internal attachment points and control surfaces that could function as a very secure attachment point for a cargo unit, trailer, or any number of civilian rockets purposes, we placed a rocket in there. a nice little manually-incremented 5-stage number for overtaking. the rear tires have a double-layer feature whereby the outer layer can burst and still leave a functional tire behind, while spraying burned tire over whoever is behind you!
I feel as though something is missing. If anyone wants to reproduce this proposal with embellishments, feel free to do so.
I feel that a modular approach to design would have costs, but would overally allow multiple designs to be updated simultaneously and allow existing designs to be revised to a greater degree, provided that they use existing technology, and allow focus to be placed on difficult designs due to the ease of implementing said new technology. for example, if you have the same gun-module for your fighters, A.P.C.s, torpedo boats, and bomber turrets, then making a new module would apply to all of them. Converting a modular bomber into a torpedo-deployer would be simplified by converting the lower-geared engines, larger wings, and torpedo deployers into familiar module technology and swapping them out with little fuss. And if you are already geared to add a different gun into your gun module, then you can focus on building your new gun without having to worry so much about making the control surfaces match and you don't need to design a whole plane to get the new gun into the field. Just something to think about that I like, but obviously a modular design would lose some efficiency by having its components be less closely integrated...
I already wanted an engine with two-sets of seven cylinders, but worried that it would be impractical, then I found out that it was pretty much exactly what was used on the F.W.-190 and was never heard from again...
Air-cooling iis probably impractical, but it makes for a more resilient engine. Better to have something that can avodid being hit than something that can survive being hit, but, ehh, I like the stories of the p-47... Oh, wow, the P-47 also used an even-numbered radial engine *dies*.
I am sneaking in a little jet-engine looky-look in the cooling... Just a microscoping multiple propellor dealy but it could be a foot, or maybe a fragment of toe-nail, into the door...
Note also that a car-engine will not fly a plane. It is probably, like, 6-litres or something tiny like that, it is off by an order of magnitude.