This is the place where the majority of the warbird (aircraft that have survived military service) discussions will take place. Specialized forums may be added in the new future
Sun Feb 07, 2021 2:38 pm
bdk wrote: Would be interesting to know the speeds with the R-1340.
Doubt it is anything significant. Biplanes are biplanes. You can put as much power as you want, but there is still a ton of drag to overcome. You eventually reach a point where the amount of power exceeds the structural integrity.
Mon Feb 08, 2021 12:15 pm
Fearless Tower wrote:bdk wrote: Would be interesting to know the speeds with the R-1340.
Doubt it is anything significant.
Can I quote you on that slice of data?
Tue Feb 09, 2021 8:19 am
bdk wrote:Fearless Tower wrote:bdk wrote: Would be interesting to know the speeds with the R-1340.
Doubt it is anything significant.
Can I quote you on that slice of data?
Here is some quotable data for you. This is probably the slickest, top of of the range numbers one can get out of a Stearman. keep in mind A LOT of effort was put into minimizing the drag here.. Drag means more than power on the motor.
https://www.eaa.org/eaa-museum/museum-c ... 21r-n5051v
Tue Feb 09, 2021 11:21 am
menards wrote:Here is some quotable data for you. This is probably the slickest, top of of the range numbers one can get out of a Stearman. keep in mind A LOT of effort was put into minimizing the drag here.. Drag means more than power on the motor.
https://www.eaa.org/eaa-museum/museum-c ... 21r-n5051v
Thanks for that! Cruise Speed: 150-190 mph...
Maximum Speed: 330 mph (with or without the wing-walker?)
A stock Stearman with a metal prop should cruise a little over 100 MPH by comparison, depending on the prop pitch. I think I used to used a dive to 160 MPH for a loop entry speed to make them nice and rounded. I just can't imagine over 300 MPH in a Stearman!
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