I got a first ground run with B46 on the YAK 74". I have put about .85 gal thru the motor on a test stand before mounting on the plane.

Motor is very smooth on the plane. It seems better than my 68" yak was with YS110 for smoothness.

Click on this link to see video with pull test:

http://www.rcuvideos.com/view_video....372acafe55843f

It turned the Xoar 20x8 @ 7,300 with 20 pounds of measured thrust (with calibrated fishing scale tied to back end)
NX 21x8 @6,700 with 20 pounds of measured thrust--Identical to 20x8
I did not pull back on the plane to overcome wheel friction.

Here is a list of the items I used:

E.F. 74” Yak/ Brillelli 46 combo

HT 5625’s &Airwild 1.5” arms in the tail
HT 5645 on rudder &Airwild 3.0 arm on rudder
HT 5625’s in wing & Hitech 1.25 HD arms on wings
Futaba 3004 on throttle (might go to HT425)
Four 12” twisted servo extensions
Sullivan graphite Nyrod # S584 with 2/56 ball links on throttle cable

Smart-Fly Ignition Cutoff

Fromeco Failsafe Heavy Duty Slider Charge Switch

Cheap battery packs 1500mah 2/3a 6V battery pack on receiver and 750ma 2/3aa on ignition (6oz together)

Dubro 10oz gas tank

Upsized tail wheel (from Mini 3D main gear) + 3/16oz

KAVAN 4” AIR TIRES with chrome hubs (+2.5oz pair)

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Weight RTF will be 12pounds 4.5oz dry 12pounds 12 wet.

Balance point with items placed as pictured is 6.3”

I mounted the motor as far back as I thought I could--~.8 behind specs--cowl is mounted back to wing cut out.

The receiver battery is attached with silicone tubing 1/4rd out--will add a band of this to the front of the gas tank as well.
Everything is fully wrapped in foam (under Velcro)