Can anybody point to a source for small, flimsy, aluminum hingesI did a search for "aluminum piano hinge" and had a bunch of hits. Here is a link to a selection on Amazon....... https://www.amazon.com/s?k=aluminum+piano+hinge&gclid=CjwKCAiA5sieBhBnEiwAR9oh2vlqsPk4eOjnbfy8htyzF34bHS4PHDo9htZmqUBvYgZJRh4LSc91_
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
Can anybody point to a source for small, flimsy, aluminum hingesAircraft Spruce stocks aluminum piano hinge that makes a good material for gear door hinges. If you want to provide easier break away use 1/8 inch aluminum pop rivets.
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
Can anybody point to a source for small, flimsy, aluminum hinges
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
Can anybody point to a source for small, flimsy, aluminum hinges
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote:
Can anybody point to a source for small, flimsy, aluminum hingesAircraft Spruce stocks aluminum piano hinge that makes a good material for gear door hinges. If you want to provide easier break away use 1/8 inch aluminum pop rivets.
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
UH
The longitudinal force may still damage fiberglass or carbon parts. I
vote for the flimsy rivets holding the doors on.
Dan
5J
On 1/26/23 07:21, Moshe Braner wrote:
On 1/26/2023 8:40 AM, Hank Nixon wrote:
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote: >>> Can anybody point to a source for small, flimsy, aluminum hinges
suitable for replacing those on the gear doors of a glider withAircraft Spruce stocks aluminum piano hinge that makes a good material
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
for gear door hinges. If you want to provide easier break away use 1/8
inch aluminum pop rivets.
UH
In this case, a spring detached, so the door hung down while pushing the fuselage into the trailer. The now-broken hinges were thin aluminum and attached with aluminum rivets. Both the rivets and the hinges
themselves broke. And the fiberglass was left intact, yay! Regarding
the suggestion (from somebody else) to use steel hinges with a weak pin,
I think with the impact likely to be along the direction of the pin,
there would be a lot more impact force hitting the "wings" of the hinge.
I see that we can get plastic (acrylic) hinges of just the right size
- both the body and the pin are plastic - would that be a good idea?
On 1/26/2023 8:40 AM, Hank Nixon wrote:
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote:
Can anybody point to a source for small, flimsy, aluminum hingesAircraft Spruce stocks aluminum piano hinge that makes a good material
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
for gear door hinges. If you want to provide easier break away use 1/8
inch aluminum pop rivets.
UH
In this case, a spring detached, so the door hung down while pushing the fuselage into the trailer. The now-broken hinges were thin aluminum and attached with aluminum rivets. Both the rivets and the hinges
themselves broke. And the fiberglass was left intact, yay! Regarding
the suggestion (from somebody else) to use steel hinges with a weak pin,
I think with the impact likely to be along the direction of the pin,
there would be a lot more impact force hitting the "wings" of the hinge.
I see that we can get plastic (acrylic) hinges of just the right size
- both the body and the pin are plastic - would that be a good idea?
On 1/26/2023 8:40 AM, Hank Nixon wrote:
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote:
Can anybody point to a source for small, flimsy, aluminum hingesAircraft Spruce stocks aluminum piano hinge that makes a good material for gear door hinges. If you want to provide easier break away use 1/8 inch aluminum pop rivets.
suitable for replacing those on the gear doors of a glider with
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
UH
In this case, a spring detached, so the door hung down while pushing the fuselage into the trailer. The now-broken hinges were thin aluminum and attached with aluminum rivets. Both the rivets and the hinges
themselves broke. And the fiberglass was left intact, yay! Regarding
the suggestion (from somebody else) to use steel hinges with a weak pin,
I think with the impact likely to be along the direction of the pin,
there would be a lot more impact force hitting the "wings" of the hinge.
I see that we can get plastic (acrylic) hinges of just the right size
- both the body and the pin are plastic - would that be a good idea?
On Thursday, January 26, 2023 at 11:16:08 AM UTC-5, Moshe Braner wrote:
On 1/26/2023 8:40 AM, Hank Nixon wrote:
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote: >>>> Can anybody point to a source for small, flimsy, aluminum hingesIn this case, a spring detached, so the door hung down while pushing the
suitable for replacing those on the gear doors of a glider withAircraft Spruce stocks aluminum piano hinge that makes a good material for gear door hinges. If you want to provide easier break away use 1/8 inch aluminum pop rivets.
retractable gear? The idea is to attach the hinges to the doors and
fuselage with aluminum rivets, and hope that only the aluminum parts
break the next time a door gets broken off, and not any fiberglass.
Specifically looking for hinges for an LS4 right now, and the broken
hinges were only about an inch long.
UH
fuselage into the trailer. The now-broken hinges were thin aluminum and
attached with aluminum rivets. Both the rivets and the hinges
themselves broke. And the fiberglass was left intact, yay! Regarding
the suggestion (from somebody else) to use steel hinges with a weak pin,
I think with the impact likely to be along the direction of the pin,
there would be a lot more impact force hitting the "wings" of the hinge.
I see that we can get plastic (acrylic) hinges of just the right size
- both the body and the pin are plastic - would that be a good idea?
Seems like the seeking of an engineering solution to a procedural problem. I'd put it back as constructed and make sure the springs work and the gear is up.
UH
True what you say, but my LS-6 partner broke the front of a gear door
during land out. I had to repair the door rather than simply reattach
it with aluminum rivets.
Dan
5J
On 1/26/23 11:49, Hank Nixon wrote:
On Thursday, January 26, 2023 at 11:16:08 AM UTC-5, Moshe Braner wrote:
On 1/26/2023 8:40 AM, Hank Nixon wrote:
On Wednesday, January 25, 2023 at 6:16:02 PM UTC-5, Moshe Braner wrote: >>>> Can anybody point to a source for small, flimsy, aluminum hingesIn this case, a spring detached, so the door hung down while pushing the >> fuselage into the trailer. The now-broken hinges were thin aluminum and >> attached with aluminum rivets. Both the rivets and the hinges
suitable for replacing those on the gear doors of a glider withAircraft Spruce stocks aluminum piano hinge that makes a good material for gear door hinges. If you want to provide easier break away use 1/8 inch aluminum pop rivets.
retractable gear? The idea is to attach the hinges to the doors and >>>> fuselage with aluminum rivets, and hope that only the aluminum parts >>>> break the next time a door gets broken off, and not any fiberglass. >>>>
Specifically looking for hinges for an LS4 right now, and the broken >>>> hinges were only about an inch long.
UH
themselves broke. And the fiberglass was left intact, yay! Regarding
the suggestion (from somebody else) to use steel hinges with a weak pin, >> I think with the impact likely to be along the direction of the pin,
there would be a lot more impact force hitting the "wings" of the hinge. >> I see that we can get plastic (acrylic) hinges of just the right size
- both the body and the pin are plastic - would that be a good idea?
Seems like the seeking of an engineering solution to a procedural problem. I'd put it back as constructed and make sure the springs work and the gear is up.
UH
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