BJ Craft Eternity
06-05-2019, 06:15 AM
#77
Set the Eternity bottom wing at +5 degrees. The top wing should be between zero and +5 degrees depending upon how the plane performs in knife edge flight. My Eternity required a 1/32" shim above the trailing edge of the bottom wing.to achieve +5 degrees incidence. I'm still working on the top wing. With the trailing edge of the top wing touching the fuselage, my Eternity requires a significant shim under the forward wing hold down screw in order not to have negative incidence in the top wing.
06-11-2019, 07:59 PM
#79
Oops.....my mistake. Yes.....it is +.5 degree, not 5 degrees! I'm still waiting for a low wind day here in the Midwest to maiden my Eternity. I had perhaps a 3/32" gap between the top wing and the top of the fuselage with the wing sitting on the struts. I ended up covering the fuselage wing seat and bottom of the top wing with plastic wrap and placed some Hysol epoxy in the gap to form two custom fit shims. My top wing is currently sitting at +.1 degree incidence. I'll make further adjustments, if needed, depending upon how the plane flies in knife edge.
10-05-2019, 06:35 PM
#81
It’s been a while since I posted an update. I have the Eternity flying very well. I added the stab fences and the Ventral fin similar to what you see others using. It tracks nicely and feels very locked in.
I added more brake on the XDrive and slowed down my overall flight envelope. The slower speed and brake really helped the presentation and tracking. The plane is very different when you keep it fairly slow and constant airspeed.
The XDrive has been doing great since the changes BJ sent. I also hard mounted the rear and that helped a lot with tracking thru corners. I’m really liking this setup. Here’s a couple pics from today next to Jim Woodwards Tuny Built Ultimate
I added more brake on the XDrive and slowed down my overall flight envelope. The slower speed and brake really helped the presentation and tracking. The plane is very different when you keep it fairly slow and constant airspeed.
The XDrive has been doing great since the changes BJ sent. I also hard mounted the rear and that helped a lot with tracking thru corners. I’m really liking this setup. Here’s a couple pics from today next to Jim Woodwards Tuny Built Ultimate
10-21-2019, 07:29 AM
#84
Join Date: Sep 2006
Location: boca raton,
FL
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It’s been a while since I posted an update. I have the Eternity flying very well. I added the stab fences and the Ventral fin similar to what you see others using. It tracks nicely and feels very locked in.
I added more brake on the XDrive and slowed down my overall flight envelope. The slower speed and brake really helped the presentation and tracking. The plane is very different when you keep it fairly slow and constant airspeed.
The XDrive has been doing great since the changes BJ sent. I also hard mounted the rear and that helped a lot with tracking thru corners. I’m really liking this setup. Here’s a couple pics from today next to Jim Woodwards Tuny Built Ultimate
I added more brake on the XDrive and slowed down my overall flight envelope. The slower speed and brake really helped the presentation and tracking. The plane is very different when you keep it fairly slow and constant airspeed.
The XDrive has been doing great since the changes BJ sent. I also hard mounted the rear and that helped a lot with tracking thru corners. I’m really liking this setup. Here’s a couple pics from today next to Jim Woodwards Tuny Built Ultimate
Jim
11-17-2019, 09:27 AM
#87
Steve: What lipo packs are you using in your Eternity and how much flight time are you getting with them? I'm using the F3A Unlimited 5200 packs and get approximately 8 minutes in the air before my Jeti tells me I've consumed 80% and it's time to land.
Mike
Mike
