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![ron_eisele Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::3195245890.png) Ron Eisele [@ron_eisele](/creator/twitter/ron_eisele) on x 61.2K followers
Created: 2025-07-24 18:57:15 UTC

XX July 1977. First flight of Aero Design DG-1. American racing prototype built to break the world airspeed record for piston-engine aircraft. Single-seat with two XXX hp Mazda RX-3 rotary engines installed, one driving a tractor propeller, the other a pusher.

![](https://pbs.twimg.com/media/GwpPsTUXUAAAqZ-.jpg)

XXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1948457467710767228/c:line.svg)

**Related Topics**
[mazda](/topic/mazda)
[hewlettpackard](/topic/hewlettpackard)
[racing](/topic/racing)
[ron](/topic/ron)

[Post Link](https://x.com/ron_eisele/status/1948457467710767228)