fiberglass repair?

When attempting to modify my battery tray (and suffering from dehydration) I mistakenly cut through the outer skin of the fuselage.

The damage is approx 2" x 1/32nd".

Is this structural or cosmetic?

https://drive.google.com/file/d/0B79...ew?usp=sharing

https://drive.google.com/file/d/0B79...ew?usp=sharing

How would the fiberglass guru's here repair the damage?

Advice is much appreciated,

Nick

I'm not a fiberglass expert. But a through and through cut needs to be repaired properly just like an impact that would have cracked the hull.
Directions are in the maintenance manual, to include scarfing to widen the repair area, laying in epoxy, cloth, etc. Sanding and refinishing.

A simple repair, not done properly, could crack and get longer as the fuselage flexes in turbulence and with temperature changes.

BillT

I respectfully suggest that someone who cuts through the fuselage in an attempt to repair a batter tray should not be repairing the fuselage.
Just a thought.

Lots of people have done it jackass. Ask around. It ain't that uncommon

And don't forget the correct curing temperatures of the repair. Cutting
corners there significantly reduces strength in the affected area.

On Sunday, August 9, 2015 at 7:55:42 PM UTC-4, Bill T wrote:
I'm not a fiberglass expert. But a through and through cut needs to be repaired properly just like an impact that would have cracked the hull.
Directions are in the maintenance manual, to include scarfing to widen the repair area, laying in epoxy, cloth, etc. Sanding and refinishing.

A simple repair, not done properly, could crack and get longer as the fuselage flexes in turbulence and with temperature changes.

BillT

What is the context of this thread?
UH

On Sun, 9 Aug 2015 16:47:43 -0700 (PDT), wrote:

When attempting to modify my battery tray (and suffering from dehydration) I mistakenly cut through the outer skin of the fuselage.

The damage is approx 2" x 1/32nd".

Is this structural or cosmetic?

Definitely structural. Major. Pretty bad spot for such a damage.


https://drive.google.com/file/d/0B79...ew?usp=sharing

https://drive.google.com/file/d/0B79...ew?usp=sharing

How would the fiberglass guru's here repair the damage?

A proper repair is going to require about one square ft of multilayer
skin replacement and some practice.

Get the glider into a repair shop if you haven't done such a major
repair yet.


Best of luck
Andreas

On Monday, August 10, 2015 at 3:12:54 PM UTC-4, Andreas Maurer wrote:
On Sun, 9 Aug 2015 16:47:43 -0700 (PDT), wrote:

When attempting to modify my battery tray (and suffering from dehydration) I mistakenly cut through the outer skin of the fuselage.

The damage is approx 2" x 1/32nd".

Is this structural or cosmetic?

Definitely structural. Major. Pretty bad spot for such a damage.


https://drive.google.com/file/d/0B79...ew?usp=sharing

https://drive.google.com/file/d/0B79...ew?usp=sharing

How would the fiberglass guru's here repair the damage?

A proper repair is going to require about one square ft of multilayer
skin replacement and some practice.

Get the glider into a repair shop if you haven't done such a major
repair yet.


Best of luck
Andreas

"Major ARRRRGGGHHHHH......"

Where did your text come from?
This thread showed very little.

"Prepare for sanding/grinding...... glass & resin, more sanding, Gelcoat, finishing & polish/wax......

"Ehhhh..... cover it in '150 MPH tape', placard the ASI to 149MPH and call it a day......"

Just kidding folks......

the OP should seriously consider finding a wrecked ASW-19 with a good forward fuselage, and graft it on to the tail boom of the original glider. everybody knows that older generation glass used such skimpy and poor quality materials......and a 2" x 1/32" slit is asking for severe structural failure......perhaps even causing the fuselage to buckle by just rolling it out of the trailer.

Brad

On Monday, August 10, 2015 at 3:12:54 PM UTC-4, Andreas Maurer wrote:
On Sun, 9 Aug 2015 16:47:43 -0700 (PDT), wrote:

When attempting to modify my battery tray (and suffering from dehydration) I mistakenly cut through the outer skin of the fuselage.

The damage is approx 2" x 1/32nd".

Is this structural or cosmetic?

Definitely structural. Major. Pretty bad spot for such a damage.


https://drive.google.com/file/d/0B79...ew?usp=sharing

https://drive.google.com/file/d/0B79...ew?usp=sharing

How would the fiberglass guru's here repair the damage?

A proper repair is going to require about one square ft of multilayer
skin replacement and some practice.

Get the glider into a repair shop if you haven't done such a major
repair yet.


Best of luck
Andreas

Original poster- contact me off line and I will give you some guidance without the panic mongering.
UH