seaplane drain grommets

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Dave Krall CFII SEL SES
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seaplane drain grommets

Post by Dave Krall CFII SEL SES »

Are the seaplane builders putting drain grommets in each rib section of the ailerons & flaps or just in the main rib sections of the wings? Thanks in advance... DJK
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KevinC
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seaplane grommets

Post by KevinC »

I put one at each rib on wings, flaps ailerons - same place you'd burn a drain hole.  I put just two on the elevators and horizontals as water should easily drain to 'low points' there.  

fwiw

k
Dave Krall CFII SEL SES
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Joined: Wed Mar 14, 2007 11:29 pm
Location: Seattle WA

Post by Dave Krall CFII SEL SES »

Are these drain grommets required because of the wood ribs? I looked at the Super Cub seaplane at Kenmore and could see no drains anywhere.
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scubarider2
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Post by scubarider2 »

Manual only calls for drains in the wings.  My first experience flying in the rain and leaving the plane outside for a few days in the rain left the ailerons and flaps with water in them.  After tipping them over and over and flying sideways for awhile  :wink:  got it out.  I will be putting in drain holes soon.
Dennis
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Dave Krall CFII SEL SES
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Posts: 922
Joined: Wed Mar 14, 2007 11:29 pm
Location: Seattle WA

Post by Dave Krall CFII SEL SES »

scubarider2 wrote:Manual only calls for drains in the wings.  My first experience flying in the rain and leaving the plane outside for a few days in the rain left the ailerons and flaps with water in them.  After tipping them over and over and flying sideways for awhile  :wink:  got it out.  I will be putting in drain holes soon.
Dennis
I'm wondering why not leave a half inch on the low side of each set of hinge plates through the trailing edge for a drain for each wing rib bay and then no other drain holes in the fabric? Will definately put them in control surfaces too. Thanks!
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