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Old 06-27-2016, 11:17 PM   #11 (permalink)
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Speedbrake, air brake, #drag-onbaby

Ive been thinking about this for a while, and finally drawing up the plans. Simplest for me would be a rod attached to hinged spoiler fin, raise and lower at will. Most exciting would be compressed air lines and a piston doing all the work. Similar to the spoilers on a 747's wing etc.

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Old 06-27-2016, 11:36 PM   #12 (permalink)
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You won't get much braking.

You will slow down if you're on level ground, but I wouldn't put much faith in any aerobrake going downhill... not unless it's parachute shaped. And even then, it'll need to be a big parachute.
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Old 06-27-2016, 11:56 PM   #13 (permalink)
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I have often wanted aerodynamic brakes like Knight Rider. Hey Aerohead, whta affect would all of this have?


I thought the trunk lifted up but it kind of looks like it somehow rotates up. If so it would improve the taper.
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Old 06-28-2016, 12:54 AM   #14 (permalink)
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However badly I hated the Knight Rider reboot... you can't deny that the original was cheesy as hell.

Viper had a better "alternate" mode:



Also a terrible show, but with a much, much nicer car.
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Old 06-28-2016, 01:36 PM   #15 (permalink)
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Active Aero Wing...Hillbilly Style!

Auto-inertial control. Could be damped by a small shock absorber though. https://www.youtube.com/watch?time_c...&v=kPKD85mFbkA

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Old 06-28-2016, 05:37 PM   #16 (permalink)
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Old 06-29-2016, 03:10 PM   #17 (permalink)
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what effect

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I have often wanted aerodynamic brakes like Knight Rider. Hey Aerohead, whta affect would all of this have?


I thought the trunk lifted up but it kind of looks like it somehow rotates up. If so it would improve the taper.
At 'normal' highway speeds,it would offer very little benefit.
If you're flat out in a Bugatti Veyron,that's another story.
I like Frank's idea of trying to capture kinetic energy with a 5th-wheel.
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Old 06-29-2016, 10:34 PM   #18 (permalink)
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Gardenedging, welcome to ecomodder. Now you know everybody's favorite childhood TV shows.

But, since you ask; depending on how you hinge it it will be hard to open and easy to close, or else easy to open and hard to close. The energy needed will scale with the energy the brake will dissipate. Unless it rotates longitudinally or something.
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Old 06-29-2016, 11:29 PM   #19 (permalink)
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