I cannot find any definitive information regarding a specific year when a Beechcraft Bonanza F33A model transitioned to a 24V electrical system through official Beechcraft documentation or reputable aviation forums. The F33A Bonanza, like many aircraft of its era, used a 12V electrical system. A change to 24V would be a significant modification, not a standard factory upgrade.
Therefore, the question of "what year did the F33A Bonanza go 24V" is likely based on a misunderstanding or inaccurate information. It's possible:
- The information is incorrect: The aircraft in question might not be an F33A, or the electrical system information is wrong.
- It's a modification: An owner may have performed a substantial and unusual aftermarket modification to upgrade the electrical system to 24V. This would not be a standard practice and wouldn't be reflected in factory records or general aviation knowledge.
- Confusion with a different model: The question may be confusing the F33A with a later Beechcraft Bonanza model that might have incorporated a 24V system (though this would also need to be verified).
To find the answer, you'd need more specific information:
- Aircraft serial number: This would allow searching Beechcraft records (if accessible) for any modifications.
- Location of the information: Knowing the source where you encountered the 24V claim would help determine its validity.
- Photographic evidence: Pictures of the aircraft's electrical system could confirm its voltage.
In summary, there's no publicly available evidence suggesting a factory change to a 24V system for the Beechcraft Bonanza F33A. Any instance of a 24V system in such an aircraft would almost certainly be due to a significant aftermarket modification.
