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Old 03-03-2015, 08:38 AM   #1
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Angle of approach/departure

Has anyone come up with a good way to determine whether a particular approach angle is going to do damage or not. I have an approximate 12' to the rear of the coach from the center of the rear drivers. 9' in the front. Approximate 8" of clearance.
Thanks in advance for any ideas.
Kurt
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Old 03-03-2015, 09:05 AM   #2
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Quote:
Originally Posted by Kurt.kroll View Post
Has anyone come up with a good way to determine whether a particular approach angle is going to do damage or not. I have an approximate 12' to the rear of the coach from the center of the rear drivers. 9' in the front. Approximate 8" of clearance.
Thanks in advance for any ideas.
Kurt
Well Kurt. This is not the Enterprise. I am not clear on your question.

When negotiating a turn always consider the rear swing. If all you have is 8" you must clear the rear bumper before you turn. I am guessing you are talking about a fence? If it is simply a curbing, and you have height clearance, your turn can start when the drive wheels are at the start of the radius. Do you have a tag? That needs to be considered.

I have no idea if what I said is helpful but it is all I can think of.

Rick Y
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Old 03-03-2015, 09:40 AM   #3
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Are you asking about, for example, the dip entering driveways to gas stations and such? And whether you are going to drag the back end of the coach on the ground? If so, you may be able to see scrape marks where others have hit - don't go there. Basically if in doubt, you will probably scrape - don't go there. If you have to try, go slow, with a spotter keeping watch. If going forward, unless really steep, you will probably just scrape and do no real damage. If going backwards, you can dig the tow receiver into the asphalt and come to a very abrupt stop (this from experience...).
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Old 03-03-2015, 11:16 AM   #4
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Kurt -- Not sure what you are asking? Please provide more specific details.
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Old 03-03-2015, 11:42 AM   #5
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I'm confused too!
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Old 03-03-2015, 12:10 PM   #6
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Joe This might help.
http://www.motoraty.com/cars/vehicle...-must-to-know/
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Old 03-03-2015, 12:19 PM   #7
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Sounds like you are concerned about ground clearance. Approaching at an angle is always better if the drive is wide enough. There is not a general rule that I am aware of. It is a matter of depth perception and judgment. I agree with vsheetz, if you have any doubts, don't do it. My brother in law left his rear wheels high and dry because he thought he could make it.
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Old 03-03-2015, 12:20 PM   #8
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This may help.

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Old 03-03-2015, 01:43 PM   #9
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Check a picture of a Grand Sport. This is a really big 'Super C' with completely straight underside, leading way back from behind the rear wheels. Lots of motorhomes, like Fleetwood products, have the bottom angle up behind the rear wheels, but the Grand Sport seems like it isn't designed for anything but highway travel. Assuming the original poster is already crabbing at an angle when encountering driveways, maybe the air ride concept is the only solution. I had rear air bags on a Midas Mini years ago, and would manually inflate these to get over a high obstacle. A Grand Sport is, ahem, somewhat of a different animal. Maybe some owners of other super C's will chime in with suggestions.

And, the one thing not to do is to approach an obstacle straight on and get hung up between the big rear roller and the front wheels on the ground and with the drive wheels off the ground, or loosing traction. Not good.

Quote:
Originally Posted by znt1186 View Post
Sounds like you are concerned about ground clearance. Approaching at an angle is always better if the drive is wide enough. There is not a general rule that I am aware of. It is a matter of depth perception and judgment. I agree with vsheetz, if you have any doubts, don't do it. My brother in law left his rear wheels high and dry because he thought he could make it.
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Old 03-03-2015, 02:06 PM   #10
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Thanks Norm! I had no idea what he was talking about!
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Old 03-03-2015, 02:12 PM   #11
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I agree with "if it looks doubtful, then don't do it". Go on down the road to another place. I disagree with the comment about getting "just a little scrape". Fiberglass is unforgiving and is expensive to repair, especially if you have a diamondshield film on the front cap.

A spotter is a good idea if it is practical to stop and let someone out, previously trained on what to look for. Don't rely on someone on the sidewalk to give you directions. You may hear "oops, I thought you could make it. Sorry."

Don
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