[AR] Re: Igniter Popping Sound
- From: "Graham Sortino" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "gnsortino@xxxxxxxxx" for DMARC)
- To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
- Date: Fri, 31 Oct 2014 16:58:42 +0000 (UTC)
I always get confused by the terminology lean and rich... So when I say 1.3:1
I'm referring to the O/F ratio. In other words 1.3 times more oxidizer mass
flow then fuel. If I run the main engine at about 1:1 O/F then the hot gas temp
will be somewhat lower.
On Friday, October 31, 2014 12:43 PM, Rick Dickinson <rtd@xxxxxxxxxxxx>
wrote:
Wouldn't running the main engine leaner (1:1 instead of 1.3:1) result in more
heat, not less? I thought running fuel rich was a way to reduce temperatures,
not the other way around.
Cheers,
Rick Dickinson
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