- 21
ive been hearing this word being tossed around, but i just cant get a mental grasp of what it is? is it a noun? adj? can someone fill in a gap in my life? 
slip stream
- Thread starter Rising_Hell
- 18 comments
- 1,723 views
Ever wondered why cyclists in the Tour de France, or on a velodrome ride in one long line? It's because the bloke in front breaks through the air and those behind are effectively pulled forward into the low pressure zone behind him. Works the same for cars, less work pushing air out of the way because the first vehicle does all the work.
- 52
Slip stream is a noun, it's a thing, slip streaming (drafting) is a verb, as it is an action.
As stated above, the lead car creates areas of high and low pressure. High at the nose, low at the tail. If a second car moves into the low pressure area/bubble, the area extends to the rear of the second car. This change of pressure lets both cars travel faster with less effort. More cars just extend the bubble, but (I think) reduce the overall effect.
If the second car breaks out of the slipstrem to overtake, it gets sucked forward slightly, and the first car, which regans it's low pressure zne gets sucked back slightly. This is a very useful application of slip streaming (drafting) in racing.
As stated above, the lead car creates areas of high and low pressure. High at the nose, low at the tail. If a second car moves into the low pressure area/bubble, the area extends to the rear of the second car. This change of pressure lets both cars travel faster with less effort. More cars just extend the bubble, but (I think) reduce the overall effect.
If the second car breaks out of the slipstrem to overtake, it gets sucked forward slightly, and the first car, which regans it's low pressure zne gets sucked back slightly. This is a very useful application of slip streaming (drafting) in racing.
Yea that slip stream is pretty unique and if you have played the one of the missions not sure which one it is. It's the one with the skylines in the testcourse and you have to take advantage of this technique of drafting i so call it. It really shows a person who doesn't kno about this how effective it can be in catching up to other cars and being able to over take them with same hoursepower in all cars.
- 203
- UK
- FLK_255
According to my Grand Prix 3 manual sitting next to me the slipstream effect only occurres above 70mph and it's effect increases as the speed of the car that your slipstreaming does. So drafting someone at 200mph will have greater effect than at 100mph due to the larger disturbance created.
In a NASCAR race though the drivers will suffer an aerodynamical loss while drafting on corners which is why it can be difficult to overtake because of the turbulance (or dirty air) created by the car in front. This would be noticed more though on an Indycar or F1 car due to the greater impact the wings have on performance. While you gain acceleration in a slipstream as the air resistance has been taken away this has an offset as the airflow that provides the wings with downforce has also been taken away. So on a high speed bend you've lost the airflow that makes the wings work therefore your grip will also be reduced while keeping close to the car in front allowing it to gain distance on you. Obviously both car's setups will also effect how dramatic the loss is.
Well that's how I've always understood it, also if I remember correctly aerodynamic wings give negligible benefit until you exceed 60-70mph.
In a NASCAR race though the drivers will suffer an aerodynamical loss while drafting on corners which is why it can be difficult to overtake because of the turbulance (or dirty air) created by the car in front. This would be noticed more though on an Indycar or F1 car due to the greater impact the wings have on performance. While you gain acceleration in a slipstream as the air resistance has been taken away this has an offset as the airflow that provides the wings with downforce has also been taken away. So on a high speed bend you've lost the airflow that makes the wings work therefore your grip will also be reduced while keeping close to the car in front allowing it to gain distance on you. Obviously both car's setups will also effect how dramatic the loss is.
Well that's how I've always understood it, also if I remember correctly aerodynamic wings give negligible benefit until you exceed 60-70mph.
- 448
- Wittgenstein
When F1 first came to Indianapolis a couple of the teams used slip streaming down the first part of the banked section and the straight to help with the lap times. I think it was Rubens giving Michael a tow. If I'm not losing my memory completely I think the McLarens did the same trick.
Of course that was in the days of the old style qualifying, doesnt happen now!
Of course that was in the days of the old style qualifying, doesnt happen now!
- 2,208
I'm not sure that the GT4 drafting model is that far off.
You don't see as much of the effect in NASCAR on the big tracks because of the restrictor plates. The cars are completely out of breath as it is, and they can't take that much advantage of the slipstream.
Watching the Indy 500, the drafting appeared to be much like that in GT4. Cars were coming from way back and shooting by the "draftee" just like they do in the game. They were making "slingshot" passes just like we do.
You don't see as much of the effect in NASCAR on the big tracks because of the restrictor plates. The cars are completely out of breath as it is, and they can't take that much advantage of the slipstream.
Watching the Indy 500, the drafting appeared to be much like that in GT4. Cars were coming from way back and shooting by the "draftee" just like they do in the game. They were making "slingshot" passes just like we do.
- 203
- UK
- FLK_255
The banking on the Indianapolis circuit and other oval tracks probably helps negate the aerodynamic loss for a guess.
I hardly ever watch NASCAR so I don't know how they use aerodynamic pieces but from playing Indycar Racing by Papyrus (I think...) years ago and watching a lot of the Indy races in the past I know those cars can easily draft on ovals without much loss of traction. Personally GT4 seems to do it pretty accurately from other games I've played and what I've seen on TV coverage for F1 etc....
I hardly ever watch NASCAR so I don't know how they use aerodynamic pieces but from playing Indycar Racing by Papyrus (I think...) years ago and watching a lot of the Indy races in the past I know those cars can easily draft on ovals without much loss of traction. Personally GT4 seems to do it pretty accurately from other games I've played and what I've seen on TV coverage for F1 etc....
- 21
oohh drafting, now i know. never heard of slipstream being used by my friends. but is it true that in racing teamates help each other draft each other and slingshot each other through the race?
- 15
- Toronto, Ontario
Rising_Hell
Yes it is. In NASCAR and IRL's oval races, teammates help each other by drafting, slingshot passing, as well as a little bit of blocking of rivals. There are also partner/buddy teams that do the same for mutual gain in standings for the Championship.
You don't see this as much in F1 or CART most of the time as they are usually further apart on the track (because of difference in the drivers' skills and vehicle performace). Plus there is hardly a long enough section of the track where an F1/CART car can go full speed for an extended period of time to take advantage of drafting and slipstreaming. Usually it will take two cars being very close together to see the effect when the 2nd car suddenly gains more speed, pulls out, and passes the 1st car under braking into the next turn.
- 47
F1 teams how ever do do the blocking. Thats what Rubens was there for last season. And the slipstream in GT4 is abit more active then it should be. But not that much.s0l1dsn8k3
In F1, the design of the car is done in such a way as to mess up the slipstream anyway. That's why there is so little passing these days. (The circuit design doesn't help either.) Back in the 60's, races at places like Monza was a huge slipstream battle for the entire race. (As evidenced in the end of the Frankenheimer movie "Grand Prix", which any race fan owes it to themselves to see). F1 cars are designed to disrupt the airflow behind the car, precisely so the car behind can't get as much benefit from slipstreaming/drafting. It's been negated a little in recent years with rule changes, but it's still there.
Zardoz
Actually, the draft is most evident on the restrictor plate races (Daytona and Taladega). EVERYONE is in the draft, so they don't seem to be taking advantage of it, but if you watch someone try and make a move and not pick up a drafting partner you'll see them somtimes lose 10 or more places as everyone still in the draft drives by them. That's why the cars travel in the one or two large packs around those tracks instead of stringing out like they do elsewhere.
Another effect of the draft, one which isn't modeled in GT4, is the fact that it helps the tops speed of the car being drafted. The car behind picks the air up off the back spoiler of the lead car, which reduces drag on the car, speeding it up a bit. However, if the car gets too close, the air can come completely off the rear spoiler, causing the car to spin out, even without contact.
- 437
ejr_1man.. ive tried a million + times.. i have no clue how to catch up to the lead skyline.. j/w if u got ne tips fer me man.. i really need it.. lol!
There's a whole thread on beating mission 23..
I guess the slipstream effect is determined by the cars aerodynamics and speed.
Try slipstreaming a subaru 360 LOL
I tried it the first 2 times when i first got the game... i was like f this. The nex day came back and on the first try i got it.... i donno how but i did... you get their draft and let them get urs... they pass you and u get there and u will steadilly catch up to the other skyline in first 👍
