lml@lancaironline.net Mailing List Archive

With acknowledgement to Advanced Pilot Seminar...

There's a "Guidelines" slide in my notes. It's copyrighted but I think this is information APS would like well distributed

Power level Mixture

80% full rich or leaner than 70 LOP

75% richer than 175 ROP or leaner than 40 LOP

70% richer than 125 ROP or leaner than 20 LOP

65% richer than 50 ROP

60% operate anywhere

On Dec 6, 2011, at 7:36 PM, Colyn Case wrote:

I'll have to go dig in my notes when I get home but it's AT LEAST 150 ROP ...and that is for the leanest cylinder not the TIT. You will burn a stunning amount of gas. Most people that run ROP don't run rich enough....

380 is my limit for CHT's

Colyn

On Dec 6, 2011, at 3:23 PM, <bronnenmeier@GROBSYSTEMS.COM> <bronnenmeier@GROBSYSTEMS.COM> wrote:

Dear subscribers,

When I run the engine lean of peak with a turbo temp around 1650 degree (75 LOP) I get really nice results in regards to head temp and IAS.

Studying the articles I understand that coming from the lean side first the TIT peaks and then head temps will peak later (means richer).

In case I really want to go fast sometime and don’t care about fuel consumption:

Can anyone give me a temp spread that I need to stay on the rich side from the peak TIT in order to be on the declining rich side of the head temp line and be safe?

Or is there another procedure to run ROP and have nice cool head temps. The fuel flow settings in the Continental for ROP operation make my head temps slowly creep above 400.

Thanks for your help

Ralf