I used Futaba S3071HV all round on mine. Fit into the elevator stab was fine

Jeremy

found some photos from the build showing the fit

I used Savox all around in my 1.8. In the tail I used the 1250's. They are small but powerful.

Just about done, just need my ECU battery and she'll be ready to go. Weight (UAT full, tank empty) just at 19lbs (+11 oz for the ECU battery). Anyone else have an AUW on theirs?

Let me know when the maiden is, Warren wants to ride out and check it out

+1

That might be borderline cruel seeing yours fly as his is creeping along the assembly line

I am really close to the same weight with an empty tank.

mine was 7.9kg dry

sounds right, considering I'm using the k100. Should be able to maiden this Saturday...

ready to go

K85, plenty of juice...

I’m using a M70 and even that has plenty of power

Here’s mine in the M70. Cruises nicely at half stick and only uses about a liter of fuel for a seven minute flight




Nervously exited for my maiden. CG seems to be spot on. Checked it with my EZ balancer and with my Xicoy for good measure.
I did have some trouble with my wing tube being a little loose. Anyone else have the same ?

great looking install, best of luck on the maiden! FWIW, my wingtube isn't loose at all. Snug, but not overly so.

also...just noticed that your gear is down. I thought it was to be balanced with the gear up.

Thanks for the heads up. I did measure the CG gear up and down.

CG & Total Weight

I need one of those....

Defiantly gear up for cg. The shift in cg is quite surprising when the gear drops.

good luck with the maiden!!

Cheers

Jeremy

Hey Guys, I have been thinking about the cg... According to the video from Pilot they balanced the Predator with the gear down (the red and white plane). I balanced mine with the gear down using the xicoy balancer and a full UAT (I am about .1lb nose heavy) and just like the image Jeremy posted I have to add a little up elevator for level flight. To me everything looks good. My area just went under quarantine so, therefore, I have to wait a little while before I can get to fly. So take videos so I can enjoy some Predator flights... and enjoy!!!

Maiden report: um....scary! Several stalls kept me feeling as though I was not going to get this jet back on the ground in one piece. Even though I had checked the cg, throws, etc. several times I'll go back over them again. My AUW with half a tank of fuel was 21.75 lbs. I know that's well over what the spec is. I expect it contributed to the problem...may by replacing the 100 with an 85.

Wow......
I'm glad you got it back in one piece. Well done.
Was there any video?

only the movie that keeps playing over and over again in my head lol