Charlie Longley
MEMBER
Anchorage, AK
Does anyone have a picture of Wipaire’s fuselage cluster modification? Thanks!
Wipaire 2,000 lb fuselage cluster modification
- Thread starter Charlie Longley
- Start date
Charlie Longley
MEMBER
Anchorage, AK
Amy
SPONSOR
WI/MN/SD
Yup, that’s it! It reinforces the door cluster. Drop me an email at agesch(at)Wipaire.com and I can send you a helpful reference guide that walks you through the 2,000 lbs. kit components and requirements.
—Amy
Charlie Longley
MEMBER
Anchorage, AK
Yes 1962 PA18-150
Bearhawk Builder
FRIEND
In the woods
And you get that cool 'One Ton Cub' sticker!!
Amy
SPONSOR
WI/MN/SD
I have been trying to figure out where this rumor came from. I’ve asked the team here that worked on the certification and others that have been here 25+ years and they say that is not the case. It is an easy way to see if an airplane has been modified but we are not in the habit of requiring installs of cosmetic items. I went 8 years never hearing this rumor and then three times this year. Would be curious to hear the source and check if their info is different from what I’ve researched.
—Amy
hotrod180
FRIEND
Port Townsend, WA
Who can post a pic of that barbell-pumping Cub?
Tried to find one online a while back but couldn't.
Amy
SPONSOR
WI/MN/SD
I have not heard of that, but I also am not really involved in the tech support side, so I wouldn’t necessarily know if that had been reported to us. There are more knowledgeable folks than me that handle warranties, tech support, etc. which is a good thing. I’ll ask around though, would be interesting to know. Like everything in life, if you try hard enough you can break anything!
—Amy
Steve Pierce
BENEFACTOR
Graham, TX
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Charlie Longley
MEMBER
Anchorage, AK
Steve what were these spars and ribs painted with?
cubpilot2
SPONSOR
Anchorage Alaska
A few years ago I was able to discuss this with Jim Richmond of Cub Crafters, and found that he had some first hand knowledge of the testing.
He as I recall said that a used older fuselage (pre 4130) was used for the drop testing and that there must have been some sort of flexing in this area. Perhaps similar to leaving your rear seat cross over bar out, and have a rough landing. The installation of the tube stopped it and satisfied the Feds.
They wanted the gross weight upgrade to apply to as many cubs as possible; so I guess you test the “weakest link”.
Jim said that he used a new 4130 fuselage for their GW increase testing and this issue didn’t come up.
He as I recall said that a used older fuselage (pre 4130) was used for the drop testing and that there must have been some sort of flexing in this area. Perhaps similar to leaving your rear seat cross over bar out, and have a rough landing. The installation of the tube stopped it and satisfied the Feds.
They wanted the gross weight upgrade to apply to as many cubs as possible; so I guess you test the “weakest link”.
Jim said that he used a new 4130 fuselage for their GW increase testing and this issue didn’t come up.
Steve Pierce
BENEFACTOR
Graham, TX
That was Polyfiber white epoxy primer.
