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Rebel Hot by Comp Arf

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Rebel Hot by Comp Arf

Old 10-09-2023, 04:02 PM
  #1301  
Dansy
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Originally Posted by natxo
I have logged more than 60 flights on my rebel, and after solving those small issues i had with my retracts, everything has been working great and i'm really enjoying the plane.

My cg is still to forward and i fly with up trim to get level-flight, now i wanted to tune it sending the cg backwards (to the point that Dave told me).

One option as i don't want to add weight in the back is to reduce the RX battery (i currently have a li-ion 3300 jeti), the 2600 jeti li-ion weights the same so not an option....

I have a 2s 1600 SLS lipo that i can try (aprox 40grs less weight), but i'm scared if its too low on capacity.... how many flights i can expect on that one? Its too low to be safe?
https://www.stefansliposhop.de/en/ba...60c::1004.html

Regards,
Jose
I would just check the CG with the 1600s and if its good, try them for a couple flights, they are good size for that jets.you will see how many flight you can do.just check after every flight right after shutdown,,,,
Old 10-10-2023, 02:22 AM
  #1302  
Dave Wilshere
 
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I have 2 x 1300mah packs along side the fuel tank, using MacGregor servos and a Pioneer I have 8-10 flights on a charge

D
Old 10-10-2023, 02:28 AM
  #1303  
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I fly mine on a pair of 1350 Lipo's from Pulse, plenty of capacity for a day of flying, I use maybe 200 mah per flight.
Old 10-10-2023, 11:09 AM
  #1304  
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Thanks to all, i understand that people that use dual battery use a device that share current from both batteries so for example a pair of 1350 equals to 2700 in total.

I tested today and was able to do 6 flights on one charge (with safe reserve) and i needed to to a fast charge at field, but overall not bad. 10 more flights to log

CG is much better, elevator is now maybe 1mm up or less.
Old 10-10-2023, 11:34 AM
  #1305  
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Yea, mine has two small lipos with a Powerbox Pioneer.
Old 10-12-2023, 03:56 PM
  #1306  
noahb
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Does the rebel hot have any bad flight tendencies? Like dropping a wing on stall vs the nose dropping? How is knifedge flight? Lots of coupling or just a tad?

Thanks
Old 10-13-2023, 05:36 AM
  #1307  
why_fly_high
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Originally Posted by noahb
Does the rebel hot have any bad flight tendencies? Like dropping a wing on stall vs the nose dropping? How is knifedge flight? Lots of coupling or just a tad?

Thanks
Knife edge is great with minimal coupling. Mine will drop a wing if you if you get it slow and get agressive with the elevator. That said, mine has never surprised me with a dropped wing. Every time it has happened I saw it coming or was like, "Well, I deserved that." It is a great jet for its size.
Old 10-13-2023, 06:05 AM
  #1308  
noahb
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Thanks for the information
Old 10-13-2023, 07:09 AM
  #1309  
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Its a semi symmetrical airfoil so yea, there's a little coupling and that's also dependent on CG but nothing I don't automatically compensate for and its not much.

Same thing above with the stall, it can catch you but only if you're doing something you shouldn't be.
Old 10-13-2023, 07:54 AM
  #1310  
noahb
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Thanks for the feedback guys. Would you recommend a 70 or 85 size turbine? I have flown f15, f16, vipers, boomerangs(most flavors) etc. Would like a smaller well behaved jet, but has good landing habbits but relatively fast...170mph or close.
Old 10-13-2023, 08:34 AM
  #1311  
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Anything from 45N to 100N turbine will work.
I started with an X45 and tried to make it as light as I could. It flew great. Then my friend got one and put a 100N in it. Wow, he likes to fly fast. So, I replaced the X45 w/ a X90 and although its a bit heavier, it is funner to fly. It does have a higher stall speed and landing speed but nothing out of the ordinary.
A X60 or K65G4+ would be a good balance between power and weight.
The Hot is the strongest of all the Rebel collection.


Old 10-13-2023, 08:41 AM
  #1312  
noahb
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Does the infinity scheme tend to sillioute in the air?
Old 10-13-2023, 09:02 AM
  #1313  
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Mine has a SW60 and its a nice matched combination. I've seen one with a SW80 and if you like to go really fast then its zoom zoom.

Cloudy skies make that color scheme turn black.
Old 10-13-2023, 09:18 AM
  #1314  
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I have one with a x45, my field is not very big area so something faster will be hard to fly.

Mine is standard orange and really pop with a bit of sun, very visible
Old 10-13-2023, 09:36 AM
  #1315  
noahb
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Natxo thanks for the feedback.
Old 10-13-2023, 09:53 AM
  #1316  
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Forgot to mention that now as others mentioned there is the xicoy X60, i will choose that one instead the X45 right now... having an extra punch wont hurt.

It can land very very slow (i uploaded a landing video to google drive, note i'm not a pro pilot), overall is a great airplane
https://drive.google.com/file/d/1PjT...ew?usp=sharing

Last edited by natxo; 10-13-2023 at 09:59 AM.
Old 10-17-2023, 11:45 AM
  #1317  
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I'm preparing mine with the Xicoy x60, cm jets kevlar fuel tank 1.2 L and a Hab pipe.
I still have the original fuel tank, but wouldn't use it becaus it's relative long and will have some effect on the cg.
Old 10-17-2023, 12:12 PM
  #1318  
ltc
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Originally Posted by koenvlieg
I'm preparing mine with the Xicoy x60, cm jets kevlar fuel tank 1.2 L and a Hab pipe.
I still have the original fuel tank, but wouldn't use it becaus it's relative long and will have some effect on the cg.
Can you safely use an X60 with the (single wall) HAN pipe?
Old 10-21-2023, 10:33 AM
  #1319  
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Today I did a ground test and everyting was ok with the turbine/pipe combination : they sell the same pipe for the kingtech k55/k70 so it should work
The plane with full hopper weights about 5650 grams, the pipe only is 70 grams : the original about 180 grams. The cm jets 1.2 L tank witch is on the cg weights about the same as the original 1.8 L about 160 grams. I used multiplex multilock for the wings.
What I don't like is that I ask a kit for the x60, they give a 'x45' kit, it took a lot of time to modify it for the x60 and they let me pay 178 euro ( excl shipping cost ) in stead of 138 euro.

Last edited by koenvlieg; 10-21-2023 at 10:52 AM.
Old 10-21-2023, 03:12 PM
  #1320  
ltc
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Originally Posted by koenvlieg
Today I did a ground test and everyting was ok with the turbine/pipe combination : they sell the same pipe for the kingtech k55/k70 so it should work
The plane with full hopper weights about 5650 grams, the pipe only is 70 grams : the original about 180 grams. The cm jets 1.2 L tank witch is on the cg weights about the same as the original 1.8 L about 160 grams. I used multiplex multilock for the wings.
What I don't like is that I ask a kit for the x60, they give a 'x45' kit, it took a lot of time to modify it for the x60 and they let me pay 178 euro ( excl shipping cost ) in stead of 138 euro.
what did you have to modify for the x45 kit from hab.se to fit the x60?
Old 10-22-2023, 11:42 AM
  #1321  
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I made the distance between the two separate mounts a bit smaller ( diameter x60 is 8 mm more than diameter x45 ) and make that the tubine mount is fixed at the end of the two separate mounts in order to have more air for cooling. Today was maiden flight and it was succesfull.
Another thing I wan't to tell is that ( see picture x45 #1311 ) you can not make the two fixation holes in the inlet hopper on 180 , becaus the inlet hopper will be out of center of the tubine or you have to do as I did : one side of the tubine mount on top of a mount, the other side under the mount
Old 11-10-2023, 06:10 PM
  #1322  
noahb
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So I ordered the infinity scheme. Picked up today from freight company. Not sure if these are updates, but after reading this entire thread thought I would mention a few things that are different then older rebel hots.
1. The control horns on mine are sized appropriately for the supplied clevis. The flap control horn clevis is tight. Dont need to fill in hole or go with mpjet clevis.
2. The msin fuel tank has a machined screw in fitting with oring for a seal. Also includes festo type connectors for main and vent.

If this is already general knowledge then ignore this post.

Last edited by noahb; 11-10-2023 at 06:13 PM.
Old 11-14-2023, 02:42 AM
  #1323  
noahb
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Question, Is it OK to use the stock plastic servo arms? I have both the stock plastic and small aluminum clamping type arms that will work.
Old 11-14-2023, 09:52 AM
  #1324  
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Originally Posted by noahb
Question, Is it OK to use the stock plastic servo arms? I have both the stock plastic and small aluminum clamping type arms that will work.
I used the plastic arms that came with MKS 747 servos with good success. The plastic arm works good with the metal clevis that come in the kit. If you want metal arms - I found the ones Futaba sells work well too, as the holes in the arms are about 0.062" and match up with the clevis.
Old 11-14-2023, 10:15 AM
  #1325  
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I used the carbon arms from MKS on my 747's

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