hitting jumps.........got a few questions

[spanko123]

you no how people do backflips and frontflips, and doubles!! how do they do all that? i mean i no the jump size,speed and the lip has sumthing to do with it, and you suspension set-up. but I've seen sum stadium trucks go foward and then just randomly do a backflip. does it have sumthing to do with hitting the throttle or brake in mid air? i can't figure it out, and sum people will be doing backflis, then land normal then front flip off same jump, anybody no how to set up for these and stuff? ok later

 

[GilBeQuick]

If you throttle in the air you'll pull the nose upwards, and if you break you'll pull the nose downwards. It's all a matter of timing and how much of what you give it. But, if you have a ramp that just sends you flat and long then you wont get to far either way. It's easier if you have a jump that'll give you lots of height, but not straight up.

 

[xxx-nt_rules_all]

i find that if you dont have a roll cage installed on ur car, u shouldn't try it because if u screw up it'll hit the ground hard on the top, screwing up ur body and possibly snapping the shock towers[i speak from experience]. I would try making a foam pit to practice that on[someone should make one...].

 

[Candyman]

Flips are tough. They take a lot of practice and a good jump. So far I've only managed 3/4 of one with my Maxx. I imagine they are harder with a stadium truck. The principle is simple. For a front flip, you clamp on the brakes just after the truck leaves the lip of the ramp. That will send the nose down and eventually the tail will come over. Just make sure you hang onto the brakes until just before the car levels out. To do a back flip, hit the ramp at just under full throttle. Just before you reach the lip, nail full throttle. That will send the nose up and as you hold it, the nose will come over. Just hold the throttle until just about level again and then land. Sounds easy? Try it. It's not quite as easy as it sounds. You need a lot of air to have enough time to pull them.

 

[mtman50]

throtle back brake forword
-tyler

 

[Error401]

It's like candyman said, the key is timing. I'd imagine hat ST's are real difficult to coax into flipping though, since it's rotational inertia that makes the truck flip. What I mean is, the migger and heavier the tires (and number of them), the easier it is to control. ST's have 2 smallish tired that don't have a whole lot of rotational inertia (due tot he mass), and thus are less likely to perform flips. Not saying it's impossible, but it is harder than doing them with an 1/8th buggy or a MT. The ramp has alot to do with it too, massive air is the key.

Best of luck.

 

[nitromaniac]

Originally posted by Candyman
Flips are tough. They take a lot of practice and a good jump.

This is so true! This is also why your best flips always seem to be done by accident, They are also hard to practice because by the time you get the timing down, you can easily break something, last weekend I was jumping my storm off the end of a turn at a track, its a really nice jump actually, rather than turning I would just fly straight off the end on to the grass on the outside of the track, what I forgot was, after changing my clutch bell I forgot to reset my rear breaks, so I had no rear breaks at all, when I hit the jump at almost wot I also hit the breaks, well, the front wheels stopped dead but the rear kept turning and flipped it perfectly around, I was amazed, that was the only time and last time I had a perfect flip, of course I had to screw around with it some more, so I took the car back to the table and reversed the breaks and tried a backflip, I should have known that I wouldnt be as lucky here, although it almost worked and I didnt break anything, it wasn't as pretty as the forward flip, landed flat on its top! I took the car back to the table and reset front and rear brakes and tried a couple more jumps, first tried a front flip, no go,, just leveled out,same with a back flip, lucky me, I think I like landing level better anyway!

 

[HumboldtBlazer]

My take on flipping is almost the same. To do a front flip is harder than a back flip. Back flip come off the jump full throttle and stay on it until the nose is straight up, once it starts to "lean back" then tap the brakes as this brings it the rest of the way around to finish the flip. I cannot consistantly do a front flip but it is the opposite. come off the jump and lock the breaks up immediatley, once the nose is past the "halfway" point then hit the gas to complete the second half of the flip. Hope that makes sense that you have to change from gas to brake after it reaches it's pengilum or vs vrs (hope that was the right word) to finish the rotation of the flip.

 

[spanko123]

yes! i new it! ok thanks guys i just new there had to be sum way to make that car randomly turn when it was in mid air ok i go try now bye!!

 

[Willthethrill]

On my nitro rush that i have, i use paddle tires, and to do a frontflip, at the lip of the jump, slam on the brakes. to do a backflip, go of the jump and keep the throttle nialed. And laso if you want more info, backorder the RCNITRO issue with wee man on the front. it tells you how to do it.
Good luck!
PS. I reccomend not trying frontflips till u mastered backflips and landing. yesterday i busted my whole left shock body doin a frontflif off a snowdrift 6 ft high.

And one more thing. error401, i would have to disagree with you on the comment about it being hord to do it w/ MT's. You should have said 4wd trucks. because there are many mt's out there that have 2wd. ( I Have one. i have the sportmaxx and can do double backflips easily in second gear. the tires balloon like crazy)

And candyman, i think you should try flipping w/ your maxx by disconecting the front drivesaft and trying to flip. you waill make it easy, and might even overrotatate.

 

[Error401]

Originally posted by Error401
I'd imagine hat ST's are real difficult to coax into flipping though, since it's rotational inertia that makes the truck flip.

I said that I'd imagine that it would be difficult, not impossible. This is based only on my not having seen anyone locally or in any videos that I have seen, doing a flip with a Stadium Truck. Didn't say MT. The sport Maxx IMO is a MT, and has larger, heavier tires than say an RS10ST, and would be more apt to do a flip than an RS10ST.

 

[El Pirata]

I would think that a stadium truck was easier than a 4wd. The reasoning behind this is the fact one end is turning and the wheels do not fight each other. the rear wheels spinning as fast as they can with WOT and nothing to counteract the centrifical force of the rear wheels.

 

[Error401]

4WD's have more effect. Think about it. say we're going for a front flip and nail WOT. The rear wheels are trying to lift the front end, and the front wheels are trying to lower the rear end at the same time. It's the same force being applied in the same rotational direction at two places.

Looks to me that trucks like the Sport maxx (2WD MT's) flip easier than a ST and as good if not better than 4WD MT's because of reduced weight (no front drive train).

 

[El Pirata]

Yes, I understand where you are coming from however the whells will fight each other as the truck rotates forward or back. The 2wd will only have one set of tire increasing speed and the other set will be decreasing speed thus giving less and less resistance to the rotation of the chassis.

 

[Error401]

only if the two sets are operating in the same plane will they not affect each other (steering at neutral). Otherwise it will cause the truck to roll (like a plane) due to gyro effect, not rotational inertia.

Simple experiment:

Take a Savage or T-Maxx, hang it by the rollbar, get it to max rpm and nail the brake. notice the nose down force.

Now take the front dog bones out and try it again. It should be roughly half the force.


Remeber when I was down that way and we were bashing. Sky had those Jumo tires on, and he was doing back flips with relative ease. Then he blew a center drive shaft and switched back to the regular sized tires and had difficulty doing the same flip. Less motational mass per same weight of truck made it more difficult to flip.

A 2WD has 1/2 the rotational mass, but alot less weight to act upon.

I would be interested in testing a pure 2WD MT in flight myself, but I don't have any buddies that are willing to let me try it with theirs.

 

[Domination]

skate parks are awsome for jumping and flipping because ofthe radical inclines on the jumps i your gunna goto th sate park i deffinatly reccomend getting a rollcage seeing your gunna be hitting pavement but theskate park is awsome for pullin of some great tricks

 

[spanko123]

ok experts.......I'm back at square one. i finaly went out today and tested. last night i had a big snow pile bout 2 and a hlf feet high i molded into a jump with one side a big lip ya no a curve to try maybe a backflip, and the other side a straight bank.

so i went out today and just wantesd to see if throtle trick works, and the throttle just kept it level, and the brake really did more noticbale change, it just friggin nose dived(but no front flip... ) so i got a question i put so much lip so it mihgt go more towards backflip then front but it realy just level out when i did not throttle in air so I'm wondering how muh would you're shocks and springs effect what you're car does when it hits jump,

cuz i no it has to do alot with the size and shape of jump. but my front end got like no oil cuz it leaked pretty mediuim stif srpings, and the rear got nice oil but weak springs what would you change to maybe have differnt effect off jumps, andybody got experince in this department ok thanks

 

[Domination]

to do a flipcorrectly you have to have ALOT of speed and height i highl boubt a lil 2 ft jump is gunna launch you truck to far in the air

 

[El Pirata]

Originally posted by Domination
to do a flipcorrectly you have to have ALOT of speed and height i highl boubt a lil 2 ft jump is gunna launch you truck to far in the air

Try a 4' jump at the right angle with a great take off distance. It works wonders!

 

[Willthethrill]

Hey guys!
This is hwo you hit a tree at full throttle in the air.
Do not repeat my actions :nope:
Its a video and its funny as heck!! http://www.rcpics.net/view_single.php?medid=24026