under the hood

under the hood

[hot-rodder talk] 1. The underlying implementation of a product (hardware, software, or idea). Implies that the implementation is not intuitively obvious from the appearance, but the speaker is about to enable the listener to grok it. "Let's now look under the hood to see how ...."

2. Can also imply that the implementation is much simpler than the appearance would indicate: "Under the hood, we are just fork/execing the shell."

3. Inside a chassis, as in "Under the hood, this baby has a 40MHz 68030!"

under the hood

A method of instrument flight training in which the trainee is under the hood to restrict visibility outside the cockpit and is prevented from seeing outside while simulating instrument flight. An appropriately rated pilot is required to act as a safety pilot in the other control seat while this training or practice is being conducted.
References in periodicals archive ?
For this study, the appliance was usually positioned with the cooking surface pushed back as far as possible under the hood and at a 6.
Hood capture refers to the products getting into the hood reservoir from the area under the hood, while containment refers to these products staying in the hood reservoir and not spilling out into the space adjacent to the hood.
Introducing hot chemical smoke under the hood canopy helps to show air disturbance conditions or lack of removal by the exhaust flow.
The location of supply air diffusers or grilles within the general vicinity of the hood front face often creates turbulence at the hood front lip, which results in the cooking effluent spilling out from under the hood.
And as an example where the steel crankshaft really performs is under the hood of the Z06 Corvette, which uses the 7-liter, 505-hp LS7 hand-built V8 engine, 4140 steel is used.
Another material that steel is staring down under the hood is powdered metal, which, Anderson admits, has the larger proportion of connecting rod applications under the hoods of cars built in the U.
The automaker, which will introduce the model later this year, needed greater space under the hood to accommodate a more powerful engine.
For this study, the appliance was usually positioned with the cooking surface centered front-to-rear under the hood and at a 6.
Reducing the number of appliances installed under the hood to effectively increase the side overhang dramatically reduced the required exhaust rate.
Also new under the hood are composite valve covers on General Motors' all new line of modular inline four, five, and six-cylinder engines.
Observations made inside the cooling tunnels on green sand molding lines indicate that the amount of organic coating in the hoods and the ducts tied to those hoods is directly related to the amount of visible smoke emitted from the molds under the hoods.