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Rebel Hot by Comp Arf

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Rebel Hot by Comp Arf

Old 12-02-2021, 06:30 PM
  #901  
jvaliensi
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I'm going from a X45 to K70. The idle thrust will be doubled, I wonder if this will make landing it harder.
Old 12-02-2021, 07:21 PM
  #902  
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Originally Posted by BarracudaHockey View Post
Cosmetic and adds weight, I'd pass. It looks nice but weight adds up and this one flys nice when it's light.
Figured as much. I'll leave it as is.
Old 12-02-2021, 10:13 PM
  #903  
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Originally Posted by retiringforgood View Post
I see a lot of guys have painted the interior of the rebel with some sort of sealant. Is there any merit to this besides cosmetics? Looks very professional but wondering if it's worth the effort and added weight.
if you read the thread I weighed mine before and after painting to see and I think the figure was 26g added. That’s less than some extra stuff people install.
I think it’s worth it.

Last edited by Dave Wilshere; 12-02-2021 at 10:17 PM.
Old 12-03-2021, 05:46 AM
  #904  
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I think a light color, like white, is the best for the inside of an airplane, It makes it easier to see the stuff,
I like to coat the bare wood with epoxy resin or polyurethane to protect it from fuel and dirt. I am too lazy to paint the insides like Dave does, but it sure looks good.
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Old 12-03-2021, 07:29 AM
  #905  
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Just grey primer from a rattle can. White takes too many coats and shows all the dirt.
Old 12-05-2021, 01:21 PM
  #906  
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Another Hot finished, I elected not to test fly Gary’s Hot today as we had a 20mph 90 degree cross wind. Mine handled it fine, but it’s set up and the Powerbox gyro is active. This can wait a week for better weather.




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Old 12-05-2021, 04:14 PM
  #907  
Airforce7
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Default Hot interior paint

Here’s a couple of images of my Hot interior with a dark textured spray paint from Rust-oleum. First time doing this on a jet, thought it came out OK. May do it again on my next project.



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Old 12-05-2021, 04:28 PM
  #908  
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Originally Posted by Airforce7 View Post
Here’s a couple of images of my Hot interior with a dark textured spray paint from Rust-oleum. First time doing this on a jet, thought it came out OK. May do it again on my next project.

Nice job looks clean
Old 12-05-2021, 08:19 PM
  #909  
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Originally Posted by retiringforgood View Post
Nice job looks clean
Thanks! The spay I used worked best when held about a foot away from the surfaces. Knowing this I had to mask the fuselage pretty well so I went to the kitchen and grabbed the roll of Saran Wrap and quickly wrapped the entire fuselage. I then used a new x-acto blade and cut out the openings for the turbine and the electrical components. To hold the edges in place around the openings I just used some blue tape. After spraying the wrap came off pretty quick. It did not take long from start to finish.
Old 12-07-2021, 05:22 PM
  #910  
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Hi,
My K70G4 Rebel Hot comes in at 6.2kg w/ a full UAT and batteries. It holds about 1.7l of fuel so takeoff weight will be 7.6kg (16.6lbs).
How does this compare to others that used the similar set ups?
There is nothing extra in mine and I'm running a single battery.
I'm starting with the CG on the wing tube.
Old 12-07-2021, 10:04 PM
  #911  
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Balance on the wing tube with how much fuel?
Old 12-08-2021, 04:37 AM
  #912  
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Originally Posted by Dave Wilshere View Post
Balance on the wing tube with how much fuel?
With no fuel in the tank, I just filled the UAT.
I am waiting on 3200MAH batteries, I currently have a 2200 in the nose. So, the CG will move forward.
Old 12-08-2021, 09:03 AM
  #913  
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Then it’s already nose heavy!
Canopy on on? Even more nose heavy!!
Old 12-08-2021, 11:21 AM
  #914  
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Originally Posted by Dave Wilshere View Post
Then it’s already nose heavy!
Canopy on on? Even more nose heavy!!
What is the best CG spot for full header tank and empty main tank. I can move stuff around. But I don't want to end up with a too sensitive airplane on the 1st flight.
Old 12-08-2021, 11:50 AM
  #915  
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I balanced mine with about 1/4 of a tank, and full UAT.
Old 12-08-2021, 12:04 PM
  #916  
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Bob,
Where did you set the CG? I've read somewhere that up to 10mm behind the wing tube is okay.
Old 12-08-2021, 12:08 PM
  #917  
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I started at the back of the tube and fine tuned with flights, I like an aft CG.
Old 12-08-2021, 12:12 PM
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Mine is at the back of the wing tube with a full UAT, it's done nothing goofy on me and I have a bunch of flights on it
Old 12-08-2021, 12:40 PM
  #919  
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Since we all plan to land with something in the main tank I’ve never understood balancing with the tank empty! That is especially true when ALL the fuel is in front of the balance, it will have a huge influence. Mine flys great with the heavy P-60, knife edge horizon to horizon without full power or full rudder. It feels perfectly balanced. I’m sure mine is towards the back of the wing spar without the canopy, with landing fuel in the main tank.
I put my fingers under the lip and lift…chuck the fancy load sensor chocolate tea pots in the trash 😉
Old 12-12-2021, 08:17 AM
  #920  
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Two more Rebel Hot test flights today, P-60SE powered Yellow Infinity and Swiwin 80 (out of one of the HSD foamies) Blue. All four models performed well on our wet winter grass field, my mod of a 6-8mm packer between nose retract and mount makes a huge difference on the take off distance. All have CARF/MacGregor 2810 servos and JP gear.






Old 12-12-2021, 08:42 AM
  #921  
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Nice lineup there!
Old 12-12-2021, 05:01 PM
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Getting mine completed and discovered something today with the tail servos. I went with MKS HV737 servos all around. So far have only hooked up the tail servos with extensions I made myself from 22 G wire bought from Hansen Hobbies. The tail servos jitter when sitting idle, and jitter quite a bit when giving stick input. I have read elsewhere that those servos do this when using long leads, which seems to be the case. Wish I would have know this in advance of buying them. Anyway, what servos are you all using or if you are using the HV737's how did you overcome the jitter?

Thanks.
Old 12-12-2021, 05:07 PM
  #923  
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Originally Posted by rc_heli_flier View Post
Getting mine completed and discovered something today with the tail servos. I went with MKS HV737 servos all around. So far have only hooked up the tail servos with extensions I made myself from 22 G wire bought from Hansen Hobbies. The tail servos jitter when sitting idle, and jitter quite a bit when giving stick input. I have read elsewhere that those servos do this when using long leads, which seems to be the case. Wish I would have know this in advance of buying them. Anyway, what servos are you all using or if you are using the HV737's how did you overcome the jitter?

Thanks.
‘I used those servo’s in a few planes, with as long lead and never had jitter…..what system you ON….?
Old 12-12-2021, 05:11 PM
  #924  
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Originally Posted by Dansy View Post
‘I used those servo’s in a few planes, with as long lead and never had jitter…..what system you ON….?
I'm using a Spektrum ix20 transmitter with an AR9030T rx. I'm using two 2,000mah lipo packs running through an AR Smooth Flite 16 gyro system.
Old 12-12-2021, 05:21 PM
  #925  
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Originally Posted by rc_heli_flier View Post
I'm using a Spektrum ix20 transmitter with an AR9030T rx. I'm using two 2,000mah lipo packs running through an AR Smooth Flite 16 gyro system.
I think it’s a timing issues, the 737 are 333 hz servo but might not like the ar16? Not sure if you have the ability to change the timing, normally on jeti I do auto for all the MKS….but I have run on some build we’re I had to change that for the savox….but that was all jeti stuff….maybe someone will chim in about the ar16…

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