Horizontal split cowl on Legacy Sonex

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Horizontal split cowl on Legacy Sonex

Postby Sonex1517 » Wed Jun 27, 2018 8:24 pm

Hey everyone

I am interested in hearing how people secured and latched their new horizontal split cowling on a legacy Sonex. Photos would really help

Just prepping to convert engines and ordered a new cowling....
Robbie Culver
Sonex 1517
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First flight 10/10/2015
375+ hours
Jabiru 3300 Gen 4
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Re: Horizontal split cowl on Legacy Sonex

Postby wlarson861 » Thu Jun 28, 2018 12:06 am

I used piano hinges at the firewall just like the original and Skybolt 1/4 turn locks across the top and around the horizontal split. Works pretty well but the fit at the prop is pretty tight and hard to line up, it may have been better to just put in nut plates and screws there. Nut plates and screws would have worked everywhere instead of the Skybolts but would have added a lot of time to the process of mounting or removing the top half.
Bill Larson
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Re: Horizontal split cowl on Legacy Sonex

Postby sonex1566 » Thu Jun 28, 2018 3:10 am

I have ended up going for simple screws and nut plates. I did buy camlocs, but I worried about losing one and then being difficult to replace. My cowling on an old Jabiru SK is secured with screws and it is no big deal to remove or replace the cowl.
Richard
Scratch build Sonex
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Jabiru 3300, Sensenich prop
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Re: Horizontal split cowl on Legacy Sonex

Postby Sonex1517 » Thu Jun 28, 2018 8:40 am

Thanks everyone. Much appreciated
Robbie Culver
Sonex 1517
Aero Estates (T25)
First flight 10/10/2015
375+ hours
Jabiru 3300 Gen 4
Prince P Tip
Taildragger
N1517S
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Horizontal split cowl on Legacy Sonex

Postby n307tw » Thu Jun 28, 2018 7:04 pm

What engine did you end up going with Robbie?


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Tim Wrede
Long Island, NY
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Re: Horizontal split cowl on Legacy Sonex

Postby Sonex1517 » Fri Jun 29, 2018 9:32 am

We are buying a Jabiru 3300
Robbie Culver
Sonex 1517
Aero Estates (T25)
First flight 10/10/2015
375+ hours
Jabiru 3300 Gen 4
Prince P Tip
Taildragger
N1517S
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Posts: 1670
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Location: T25 Aero Estates, Frankston, TX

Re: Horizontal split cowl on Legacy Sonex

Postby Area 51% » Sat Sep 28, 2019 7:56 am

Currently involved with the factory horizontal cowl and have a question.

It looks like the top 2 hinge lugs (just under the upper engine mounts) on the sides of the firewall are just there for show. It seems that the pins could be installed from the top down if those two lugs were removed, eliminating the notches at the bottom. I have no experience installing or removing a cowl, but it would appear easier to accomplish the task if the pins could be installed from the top. Are those lugs of any importance down the road?

Thanks
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