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Hey, having built similar instrument - its easy to get an instrument to read whatever makes you happy - it just may not correspond very closely with reality. Besides, I thought that comment would get your attention and get you to write about some of your challenges in start up, etc.
I don't know Tracy's trade secret about how he calculates fuel flow - as a minimum rpm, mixture setting and manifold pressure are probably involved. My system simply measures the pulse duration of your injector against your rpm and then using the flow rate of your injectors calculates the fuel flow. The variable in my approach is the need to know the flow rate of your injectors - the rest of the information I get from the injector pulse train..
Now get busy writing {:>)
Ed
----- Original Message ----- From: "Bill Bradburry" <bbradburry@allvantage.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, March 08, 2007 10:37 AM
Subject: [FlyRotary] The truth????
"Doesn't have to be long, doesn't have to be prose, doesn't even have to be the truth - just write and make some outlandish claim - like 250Hp at 4200 rpm {:>) or the unbelievable efficiency of pinched ducts - that'll get some attention."
Hey! I didn't build the instrument...I just read the numbers off of it! Heck! I don't even know how it works well enough to understand why it reads so high!!?? :>)
And I still think it looks good! :>)
Bill B
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Homepage: http://www.flyrotary.com/
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