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How much (kgs) plutonium was used in each Voyager space probe?

Question #151269. Asked by BigTriviaDawg.
Last updated Jun 15 2024.
Originally posted Jun 15 2024 8:09 PM.

psnz

Answer has 3 votes

Currently Best Answer

psnz

4 year member
1005 replies avatar

Answer has 3 votes.

Currently voted the best answer.

About 4.5 kg (9lb 9oz) of Pu-238 per radioisotope thermoelectric generator (RTG).

The Voyager spacecraft each had three RTGs.

So 13.5 kg (29lb 8oz) of Pu-238.

The Multihundred-Watt radioisotope thermoelectric generator (MHW RTG) is a type of US radioisotope thermoelectric generator (RTG) developed for the Voyager spacecraft, Voyager 1 and Voyager 2.

https://en.wikipedia.org/wiki/MHW-RTG

The Wiki item provides details of the power required and generated.

Response last updated by psnz on Jun 15 2024.
Jun 15 2024, 8:11 PM

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How much (kgs) plutonium was used in each Voyager space probe?

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