F-86 Sabre - 50mm EDF

[Zephyr1]

Wow!! That looks amazing, I love the orange! It's very reminiscent of an X-1! And I for sure love the low speed passes with this thing. Yes, @Chuppster is correct, cheater holes will improve performance but...

Question: Should I update the F-86 plans to be a better reflection of my 70mm Sabre? With molded fuse and nose? Wings would stay the same.

 

[Winglet]

I actually like the plans they way they are. It's pretty basic. But, that is just me.

 

[The Green Bastard]

I'm starting my 2nd through 4th build of this plane. LOVE IT but the last one kissed a fence at top speed. I am going to round out the fuse and wings like zephyr did last, but going to try forming the nose with the one from the original plans instead of strips, pics to come!

 

[The Green Bastard]

Almost ready to fly, just needs control rods and horns, may be a bottom for the nose. It has an eflite 64mm motor from the f15. I hope it flies well because the last one felt lighter and needed 70% power to stay moving. On this one the Elmer's foamboard I though was good, isnt. I couldn't get the paper off for anything, and I tried all the tricks, I'm also pretty sure its heavier. Ended up forming but with wrinkles on the inside paper layer. Found a dollar tree and a bunch of readi board so the next one will be perfect I'm sure lol.

 

[The Green Bastard]

All ready to maiden. Using a 2700mah 4s 60c battery, eflite 3150kv motor with a 12 blade 64mm fan, and 60a esc

 

[Zephyr1]

I have never had any luck with Elmers, so best of luck to you. I like the wings, they look great. That shelf is placed awful low on the fuse though, I'd be a bit worried about the airflow to the motor. Let me know how the flight goes!

 

[The Green Bastard]

I agree its low, and I thought about that when installing it, but needed the room for the 2700mah 60c 4s battery. Flew my last one on 2200mah 35c and it was going through batteries in 2 or 3 minutes, and puffing them. I can always open up some vents at the field if I have to. Hoping to maiden this weekend.

 

[Winglet]

Update:

Had a Lemon receiver go out on my F-86 and it messed it up pretty good. Basically salvaged the wing and everything else new. I was able to make several improvements and it really flies sweet now. I payed more attention to my fan mounting and thrust tube and I get a lot more thrust than before. I also gave the horizontal stabilizer just a little more area. I use 1600 4s 75c packs and it give me about 2:30 minutes of exhilarating flight. Will probably start on another soon, because I enjoyed building it so much.

 

[Winglet]

Construction of my second 50mm F86 is under way! I enjoy building and flying this airplane so much. Great design Zephyr1.

 

[Zephyr1]

I agree its low, and I thought about that when installing it, but needed the room for the 2700mah 60c 4s battery. Flew my last one on 2200mah 35c and it was going through batteries in 2 or 3 minutes, and puffing them. I can always open up some vents at the field if I have to. Hoping to maiden this weekend.

How'd the maiden go? I opted to try my own blended fuse version of it!

 

[Zephyr1]

So I did the whole blended thing again. I think this is like MK 7 or MK 8 of this plane for me, I freaking love it. It's just a great plane.

 

[Winglet]

I agree Zephyr, Just a great airplane! Another member of our club started flying his today. His is 3S and a little weak compared to my 4S but he is loving it. He added 3D printed vents to the sides and that really helped. My version 2.5 is going to get cheater vents as well. It has really been fun to watch our somewhat old school club members observe the Sabre Jet in flight. Most of them have huge models costing literally 100 times as much and they arn't nearly as exciting as my little Sabre Jet. It has REALLY gotten some attention. Mine got close to 20 flight in today. It was a perfect day and I just couldn't stop flying it.

My version 2.5 is being built nearly stock to your origional plans. I just can't see where it needs a lot of changes. I use the 50mm FMS edf.

What a ship!

 

[Zephyr1]

I agree Zephyr, Just a great airplane! Another member of our club started flying his today. His is 3S and a little weak compared to my 4S but he is loving it. He added 3D printed vents to the sides and that really helped. My version 2.5 is going to get cheater vents as well. It has really been fun to watch our somewhat old school club members observe the Sabre Jet in flight. Most of them have huge models costing literally 100 times as much and they arn't nearly as exciting as my little Sabre Jet. It has REALLY gotten some attention. Mine got close to 20 flight in today. It was a perfect day and I just couldn't stop flying it.

My version 2.5 is being built nearly stock to your origional plans. I just can't see where it needs a lot of changes. I use the 50mm FMS edf.

What a ship!

20 flights!! Holy crap man that's fantastic! Yeah, I would expect the 3S to be a little underpowered but I would love to see the 3D printed cheater vents. The Sabre just hits the sweet spot between flight capability and it's just so cheap that you aren't terrified to fly it balls to the walls. I hope that made sense lol. It's great to see you're enjoying it

 

[Winglet]

I'll post photos of the vents when I get a chance. I'm very interested to see how they perform. I have two other ducted fan models now but for some reason I keep going back to this one? The other two are ARFs. I think there is more enjoyment flying something you created yourself. Probably why?

 

[synjin]

Well, here is my 50mm F-86 that was mistakenly blown up 125%. I put a 70mm EDF in it. I’m hoping I can get the CG right. That’s a 24” ruler in the picture. I’ll try to maiden it Friday.

 

[synjin]

Finally went to fly mine today. It was obviously tail heavy. I'll have to do a bit of fixing of the nose, as I completely chopped power about 10 feet off the deck. I also wonder whether the horizontal stabilizer/elevator are a bit small?

 

[mach1 rc]

Finally went to fly mine today. It was obviously tail heavy. I'll have to do a bit of fixing of the nose, as I completely chopped power about 10 feet off the deck. I also wonder whether the horizontal stabilizer/elevator are a bit small?

Nice did you get a video

 

[synjin]

I've got to find a way to do video while I'm flying. Usually I'm out alone, so I don't have anyone to video for me. I've tried my phone, but the video from that isn't useful. Going to make a hat mount for my old miniDV camcorder. Really, I just need to find a camera person. Sadly, it's too cold to trick the wife into helping.

 

[synjin]

Maidened it today! Yay! No video, as I was out at the field alone. Once I figured out to keep it level until it picked up airspeed, it flew great. Never got to see a real F-86 flying (there were Phantoms at Elmendorf AFB when I was a kid). For all that it looked scale flying. It has a 6 blade 70mm EDF, 40a ESC, and I was running new 3850maH 3S Hyperion batteries. I still think I need to upsize the elevators (which I programmed as elevons). There wasn’t a lot of elevator authority. I love that sound as it flies past! I did have to put 50g of washers in the nose to balance it. If the weather holds maybe I can get the wife to video it tomorrow.

 

[synjin]

After the last landing a week ago, I had to rebuild the nose and increase the elevator area. So I used the nose from the 70mm F-86 and resized the elevators 125%. I’m going to wait to try it again until the snow sets up a little. With fresh snow I’d hate to fill the fuselage with snow.