Re: Re: F1M Cat 1 record upped again

From: Chris <pseshooter3d_at_yahoo.com>
Date: Mon, 17 Mar 2014 22:42:57 -0400

If the SS performs as well as 5/99 at 90F, would there be any advantage for those who have no stock of 5/99 to keep their SS in a heated container prior to flying ( are there rules against that?) or would the rubber, having relatively little mass, lose heat and reach the ambient temperature so quickly as to negate any benefits of initial high temperature rubber?

Chris



Sent from my iPhone

> On Mar 17, 2014, at 10:23 PM, <joshuawfinn_at_gmail.com> wrote:
>
> June '13 is excellent. I think this may be the case with most post 2011 batches (and the post 2011 figure is just based on guesswork). In "normal" temperatures, 5/99 outperforms SS at least for indoor purposes, but my flight testing indicates that they converge at temperatures above 90 F. Again, this is based on flight testing rather than actual torque-turns data. I have had 14 minute half motor flights (F1D, 12' ceiling) on SS and 5/99 in high temperatures, but in conditions below 60 F, the SS rubber only gave 11 minutes for the same setup.
>
> All of this is open to further experimentation. Because SS rubber has not yet exceeded 5/99's energy content for most indoor flying situations, there remains insufficient motivation for extensive testing. I predict that this will change in the coming years, and it will have the nice effect of providing excellent rubber for a low price. Until then, keep stockpiling your 5/99--it is still the best thing for setting records!
>
> -Joshua Finn
>
>
Received on Mon Mar 17 2014 - 19:43:04 CET