Re: [Titanaircraft] Started Flying with the Jab 2200

Rob,

That indicated speed is pretty much right on for the 2200 with a properly-functioning static system.  If you're venting the static in the cockpit, ASI will read about 8-10 MPH high.  Your prop was the 62" taper-tip, wasn't it?  If not, it's supposed to be.  It should be pitched so that when establishing level flight at full throttle, RPM reads 3300 RPM, since the 2200 is rated to run there continuously all day long.  11 degrees should be close. 

Get your prop set first, then immediately tackle the EGT's.  If you don't have enough load (prop pitch), your EGT's will run high.  As you increase the prop load, the EGT's go down while the CHT's go up, and visa-versa.

If you've got the latest economizer kit in your carburetor, your EGT's should be running around 675C (1250F) at full throttle in a climb, and they should increase to 715-730C (1320-1350F) when you throttle back to a 2900-3000 RPM cruise.

--Kimberly

________________________________
From: jrceacampo <jrceacampo@yahoo.com>
To: Titanaircraft@yahoogroups.com
Sent: Monday, September 14, 2009 10:42:10 AM
Subject: [Titanaircraft] Started Flying with the Jab 2200

 
Hi All;

I just started flying my Tornado 2 with a Jab 2200 and I had some questions based on the first numbers I'm getting:

1. So far RPM is around 3000 on take off maybe to 3100max. Cruise: I'm getting around 100-105 Mph which I believe is a bit less than expected. I'm still adjusting to the attitude of the plane so I might be flying a bit pitch up. I don't have the boots on the tires yet as well.

2. All engine readings seems good, but the EGTs (2 rear cylinders) are constantly at around 740 degrees C. I saw in the manual 680-720 should be normal, is this because I'm breaking in the engine?

3. I have a Warp drive prop 64" set at 11 degrees, should I adjust it to get more cruise? Climb rate seems quite good.

Thanks for your advice,
Rob.

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