I broke mine at about 5mph. the faster the sled is going, the less damage to the bulkhead.
Blue Dave
Lifetime Member
- Joined
- Jan 7, 2008
- Messages
- 2,888
- Reaction score
- 243
- Points
- 1,453
- Location
- Ham Lake, MN
- Country
- USA
- Snowmobile
- '17 Sidewinder LTX DX
BETHEVIPER said:
Mmmm..... I'm not sure if I am following your reasoning on this one. The only truth to your statement that I can see only applies if you are going fast enough to fly over a rut or wash out without really hitting it. If you hit something solid at a low speed you will put less energy into your bulkhead than if you hit the same object just as solidly at a higher speed.
Simple high school physics at work here. The formula for kinetic energy (Ek) is Ek = ½mv2. The mass (m) of your sled remains constant but the velocity (v) is squared. Therefore the energy transmitted into your bulkhead by a deceleration event becomes exponentially greater as your speed increases.
apex55
TY 4 Stroke Junkie
apexrtxmaniac said:
My guess would be the 11 second mark on the film.
hibshman25
Vendor
- Joined
- Sep 25, 2005
- Messages
- 2,880
- Reaction score
- 2,764
- Points
- 1,603
- Location
- Lebanon, PA 17042
- Country
- USA
- Snowmobile
- 2017 sidewinder ltx dx
2018 snoscoot
hibshman25 said:apexrtxmaniac said:
Your kits are shipping out tomorrow via priority mail.
Did you get a chance to install the repair kit yet? Please do not hesitate to contact me if you have any questions.
Thanks for the math lesson.
Now think of your front end as a hammer. The speed is how hard you are swinging it. If you are bumping the edge of a tree, or crossing rail road tracks going slow, your not swinging the hammer fast enough to bust through.
Your math applied to the bulkhead doesn't hold true. I have seen many sleds that hit things so fast, the spindle exploded and never even bent the arms, have had others that hit so hard they ripped the ends out of the arms where the spindle connects and not damaged the bulkhead. Many have been broke at slow speeds where there was not enough momentum to smash through or bump past. Rail road tracks around our town have eaten atleast three bukheads I know of and a few trailing arms, none of which were going fast.
Now think of your front end as a hammer. The speed is how hard you are swinging it. If you are bumping the edge of a tree, or crossing rail road tracks going slow, your not swinging the hammer fast enough to bust through.
Your math applied to the bulkhead doesn't hold true. I have seen many sleds that hit things so fast, the spindle exploded and never even bent the arms, have had others that hit so hard they ripped the ends out of the arms where the spindle connects and not damaged the bulkhead. Many have been broke at slow speeds where there was not enough momentum to smash through or bump past. Rail road tracks around our town have eaten atleast three bukheads I know of and a few trailing arms, none of which were going fast.
Blue Dave
Lifetime Member
- Joined
- Jan 7, 2008
- Messages
- 2,888
- Reaction score
- 243
- Points
- 1,453
- Location
- Ham Lake, MN
- Country
- USA
- Snowmobile
- '17 Sidewinder LTX DX
As I mentioned in my post, at higher speeds you have a better chance of flying over something that otherwise may have stopped you at a lower speed.
My "math lesson" is only accurate if you hit an object squarely enough to stop the sled at either the low or high speed.
It is all about deceleration force. Therefore I agree that if a higher velocity results in skipping over an obstacle rather than being stopped by it you will incur much less deceleration force.
The problem is knowing if the extra velocity is going to help you skip over the obstacle or result in more damage if you don't. If you are crossing railroad tracks for example do you decide to go slow or purposely hit them at a higher speed?
Obviously we are off topic here but I think that everyone would agree that in any instance whether hitting something going slow or fast you will be better off and have a much less chance of bulkhead damage if you have the saver kit installed.
My "math lesson" is only accurate if you hit an object squarely enough to stop the sled at either the low or high speed.
It is all about deceleration force. Therefore I agree that if a higher velocity results in skipping over an obstacle rather than being stopped by it you will incur much less deceleration force.
The problem is knowing if the extra velocity is going to help you skip over the obstacle or result in more damage if you don't. If you are crossing railroad tracks for example do you decide to go slow or purposely hit them at a higher speed?
Obviously we are off topic here but I think that everyone would agree that in any instance whether hitting something going slow or fast you will be better off and have a much less chance of bulkhead damage if you have the saver kit installed.
dido on the save, travis, do you have enough ready to send me one for mine and a repair kit for customers to keep in stock
