Gords

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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    Thanks and great research, but agree the marshmallow analogy is a bit of a strange one. Yes intumescent work by a combination of...

    Jan 4, 2025
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    Gords reacted to Unclear Engineer's post in the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed) with Like.

    I learned a new word today: intumescent. https://en.wikipedia.org/wiki/Intumescent has a decent explanation, but that picture of a...

    Jan 4, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    Intumescent used to protect against cryogenic spill + fire also have to be designed to last 20-30 years in aggressive environments...

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    What the testing proved is that intumescent' s can withstand cryogenic to high energy/high heat cycles

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    An industry body was formed to look at this, leading to a new set of ISO standards to cover cryogenic spill protection, followed by high...

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    An extremely valid observation/comment on the extreme temperature cycling that will be experienced from the cold of space to reentry...

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    Regards to SpaceX I am not sure what they are doing, but would fully understand a totally different approach in that they are designing...

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    I would agree with NASA's predicament in looking at and testing new technology, this is a very fair comment.

    Jan 3, 2025
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    Gords replied to the thread NASA's Orion crew capsule had heat shield issues during Artemis 1 − an aerospace expert weighs in (op-ed).

    I enjoy reading all these engineering debates and potential solutions, but nobody is really picking up on the heat shield design itself...

    Jan 3, 2025

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