|
Chuck,
In this situation for those with the EC1 (I have both a EC1 and EC2) with the
fixed injector stageing of 16"MP one could switch the secondary injectors off
with the disable switch when forced to operate at the stageing point....FWIW
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from "Chuck Dunlap" <crayd@cableone.net>: --------------
> Hi Bernie
> What is happening is that the ECU is switching between running only the
> primary injectors below 16"MP and both sets of injectors above 16". Any
> difference in the flow rates of the injectors can cause a lean condition
> which usually can be covered up by running up the mixture a little when
> operating in this area. Perhaps your injectors are not well matched?
> I had this happen whenever I throttled back to descend when I had
> Tracy's EC version 1. I have since changed to version 2 and have not had
> the problem, with the version 2 you can program the switchover point
> lower, try about 13". The version 1 was fixed at 16"
>
> Yep I agree, flying up high feels like its in its own element, like it
> will run forever its so smooth...
>
> Chuck Dunlap
>
>
>
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of jbker@juno.com
> Sent: Thursday, April 21, 2005 5:20 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Bernie building time 1.8 hours today
>
>
>
> Tried to complete Van's AD for tipup 7's and 9's this AM, got frustrated
> and went to fly after lunch. South Westbound holding my 50 mile radius
> for River Ranch( my home field per the limitation) and 10.5k. Followed
> the circle on around to Lakeland, then climbed to 11.5 eastbound just
> north of R2901 then south between the build up that looked like they
> went above 15k. When I ducked down between the clouds to get under,
> actually got into a light shower (no harm to Ed's prop :>)). Seems like
> the combination 9 and rotary just like it better the higher I go. Will
> have to borrow and O2 bottle one of these days.
>
> The only thing that made me uncomfortable today was that when I throttle
> back to stay out of the red arc on the A/S to about 15 manifold pressue,
> the engine goes into the unstable up and down hunting that no mixture
> ratio seems to fix. Any ideas??
>
> Bernie, 13+ hours now.
|