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Search: Posts Made By: PKI
Forum: Hitches, Couplers & Balls 08-15-2017, 05:49 PM
Replies: 204
Views: 29,390
Posted By PKI
Reference posts 157 and 158. The analysis is...

Reference posts 157 and 158. The analysis is more complicated than what is represented with the free body diagram. Forces increase when the coach is towed because that movement adds acceleration...
Forum: Hitches, Couplers & Balls 08-14-2017, 11:05 PM
Replies: 204
Views: 29,390
Posted By PKI
DK, saying that all we can do is measure the...

DK, saying that all we can do is measure the static condition sells us all a bit short, but I do understand your point. The problem with saying a static load is good enough for dynamic use is that...
Forum: Hitches, Couplers & Balls 08-14-2017, 05:03 PM
Replies: 204
Views: 29,390
Posted By PKI
DK you make a static analysis for a dynamic...

DK you make a static analysis for a dynamic application. The mass and associated moment of the PP/H remains even if it's weight is transferred. In the dynamic event of towing, the TV receiver still...
Forum: Hitches, Couplers & Balls 08-14-2017, 12:01 PM
Replies: 204
Views: 29,390
Posted By PKI
I do not. Old age and experience have value. ...

I do not. Old age and experience have value. With that value often comes a need to accommodated some frankness. A thick skin, a second reading for content, and reconsideration of our understanding...
Forum: Hitches, Couplers & Balls 08-14-2017, 11:28 AM
Replies: 204
Views: 29,390
Posted By PKI
Dave - the ProPride is a very good design for any...

Dave - the ProPride is a very good design for any trailer. Folks with a smaller trailer may not feel the need for the design, but sway and emergency transitions are not limited to large coaches. ...
Forum: Hitches, Couplers & Balls 08-13-2017, 12:52 PM
Replies: 204
Views: 29,390
Posted By PKI
Dave, I assume you are not serious and only...

Dave, I assume you are not serious and only trying to make the point that the design is heavy. Just to be clear, never use added weight to counter-balance tongue weight. To offset that weight,...
Forum: Hitches, Couplers & Balls 08-13-2017, 12:01 PM
Replies: 204
Views: 29,390
Posted By PKI
Frank, when I talked to CanAm, they recommended...

Frank, when I talked to CanAm, they recommended an Easylift hitch. It's one of the least expensive hitches on the market. When I asked about hitch reinforcement, a CA shop was recommended. ...
Forum: Hitches, Couplers & Balls 08-13-2017, 11:55 AM
Replies: 204
Views: 29,390
Posted By PKI
Frank - No problem with your decision. Saving...

Frank - No problem with your decision. Saving money is logical. Was there any technical reason you installed your BO? Pat
Forum: Hitches, Couplers & Balls 08-12-2017, 10:22 AM
Replies: 204
Views: 29,390
Posted By PKI
Frank, PPP is not jargon, it is design, and a...

Frank, PPP is not jargon, it is design, and a reasonably clever design as well. Your analysis of the other three hitches is good, except you give way too much credit to the Anderson. Note, the...
Forum: Hitches, Couplers & Balls 08-12-2017, 10:04 AM
Replies: 204
Views: 29,390
Posted By PKI
100 lbs (weight of PP - weight of EQ) - you can...

100 lbs (weight of PP - weight of EQ) - you can rationalize that some is shifted to the coach axles by shank and ball location leverage, but the mass remains and there is an effect from that mass...
Forum: Hitches, Couplers & Balls 08-06-2017, 11:16 AM
Replies: 204
Views: 29,390
Posted By PKI
Never consider the Equalizer is a good hitch for...

Never consider the Equalizer is a good hitch for an Airstream. It is an old design that is stiff and friction based. The good point is it's easy to hook up and it does work. That would be good...
Showing results 1 to 11 of 11

 

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