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f16 1/5 - jet cat 220 rxi?

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f16 1/5 - jet cat 220 rxi?

Old 11-14-2020, 10:24 AM
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ddennison
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Default f16 1/5 - jet cat 220 rxi?

Have a new new f16 1/5 coming soon.

Thinking about a JC 220 rxi - any 220 owners have some experience to share?

Thank you,
Dave

Old 12-06-2020, 12:37 PM
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ddennison
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anyone have any recent 220rxi review?
Old 12-06-2020, 01:16 PM
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I have several P-220Rxi turbines. The latest one in my CARF Bolt. There have been a few updates over the years and the latest ones are really sweet. I love not having to charge the ECU pack, my Mephisto unit is just coming up to three years since the first run and I have not charged the 2s Li-Po 3700 50c pack in that time.
I have a customer with the P-220Rxi in the same F-16.
All the latest motifs have V12.0 ECU’s so telemetry as std.

Dave
Old 12-07-2020, 06:01 AM
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Hi Dave

Perfect combo on the1/5 F-16 with the 220RXi. I'm having endless flights in 1 day with the 220 charging the turbine battery and the powerbox batteries. One day I did 8 flights, burnt around ~32ltrs of fuel and the batteries came back home fully charged .

The total weight save if I were to use another brand of similar performance is more than 4lb (if you consider the thrust of this engine and the weight save from the batteries) which also means endless verticals....

The best combo. Highly recommended. Also my mate here in Dubai is flying another 1/5 scale with exactly the same setup.

Enjoy and post some pictures of your project.

Tassos




Old 12-07-2020, 06:52 AM
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ddennison
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Thank you for the post. Glad to hear it is running well for you.I am interested to try the BMS as it seems a logical step in making our planes smarter and even more redundant for safety. I do wonder what the wear and tear on the starter/generator mean in the 10-20 hr range?

Dave
Old 12-07-2020, 09:24 AM
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Originally Posted by ddennison View Post
Thank you for the post. Glad to hear it is running well for you.I am interested to try the BMS as it seems a logical step in making our planes smarter and even more redundant for safety. I do wonder what the wear and tear on the starter/generator mean in the 10-20 hr range?

Dave
Have not reached 20hrs yet, but because of the generator being contactless I guess the wear and tear is almost 0. By the way, you can monitor the generator performance on telemetry, for example I have a full log of performance with Jeti as I download the data of each flight on Jeti Studio and check all the parameters to confirm they performed nominally. If the performance begins to deteriorate I would notice it immediately.

Tassos
Old 12-07-2020, 10:03 AM
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My P-220 in the Mephisto has around 25 hours, I had a starter motor issue in the first hour so I changed it to an improved version ( mine was from the first batch) no issues expected with normal service intervals. I have customers in the 20 hour range too.
The only thing that seems to kill the starter is a sticking turbine, without the ‘kick’ of the starter motor hitting the spinner nut the magnet energising alone will over amp the starting system if you don’t pick up on it. I have the on board Mini GSU so I spool the turbine manually after any lengthly storage to be sure the rotor turns before trying a start.

Dave
Old 12-07-2020, 11:18 AM
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Tassos - sweet jet. Do you use a PB Battlife Guard on the batts when done for the day or do you leave them fully charged? I also have been using PB batteries for a few years, they're great.
Old 12-07-2020, 12:44 PM
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Originally Posted by skunkwurk View Post
Tassos - sweet jet. Do you use a PB Battlife Guard on the batts when done for the day or do you leave them fully charged? I also have been using PB batteries for a few years, they're great.
Thanks, it is a perfect combo, the 220 pushes the 1/5 16 so well even including some ordinance.

The battery guards? Not always, if I will use the batteries within 1 month no i don't use the guard. If stored more than a month I do use the guard to discharge to storage voltage 7.6V. But now it's flying season out here till April/May next year, so I just keep all the batteries constantly charged because I use them every weekend.

Tassos
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Old 12-07-2020, 12:51 PM
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That's what I do too. Very cool!
Old 12-07-2020, 04:28 PM
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Originally Posted by Dave Wilshere View Post
My P-220 in the Mephisto has around 25 hours, I had a starter motor issue in the first hour so I changed it to an improved version ( mine was from the first batch) no issues expected with normal service intervals. I have customers in the 20 hour range too.
The only thing that seems to kill the starter is a sticking turbine, without the kick of the starter motor hitting the spinner nut the magnet energising alone will over amp the starting system if you dont pick up on it. I have the on board Mini GSU so I spool the turbine manually after any lengthly storage to be sure the rotor turns before trying a start.

Dave
geez Dave i feel like a caveman i have a wooden dowel with a piece of piano wire fastened to the end so i can shove it up the tailpipe to knock the compressor wheel free lol
Old 12-07-2020, 10:11 PM
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Have you tried loosening the mounting strap? If yours continuously sticks it can be the case is being stressed by the mount. I only nip my mounts enough to stop it rotating...I’ve seen people dent the cases with straps over tightened.
Is the temperature reading ambient correct? If it does not cool enough any of the oils will gum where they are hot still. Also, you are not using Aeroshell 500? That’s the worst for that.
On V12.0 ECU’s the cooling takes it down to 70 degrees, this can be programmed into a V10 by George.

Dave
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Old 12-08-2020, 07:30 PM
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Dave and Tassos - what oil are you using?
Old 12-08-2020, 10:13 PM
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Mobil Jet II. Ive never run one of my turbines on anything else, started on it 20 years ago and never changed. One day I might have no choice, but Im a creature of habit. I have several turbines run into 30+ hours before service. Two P-120SX units that got near 50 hours before the bearings sounded dry

I have customers starting the long process of knowing on these two.


Dave


Old 12-09-2020, 01:29 AM
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Originally Posted by ddennison View Post
Dave and Tassos - what oil are you using?
Lately I'm just using the Jetcat oil https://www.jetcat.de/de/products/pr...tstoffzusaetze. Very happy with it and with antistatic additive.

Thanks, Tassos
Old 12-09-2020, 05:11 PM
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Thanks for the info on mount straps, May fix an issue with one of my JetCats!
Old 12-14-2020, 05:30 PM
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Any vids of a 1/5 F-16 flying with a 220rxi ?

thx in advance
Old 12-25-2020, 07:46 PM
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So I went through my 220RXI with ECU version 12 which also has telemetry. I am using the BMS (batt management system ) as well.

I am a bit disappointed that the battery I ordered with the turbine does not have the matching balance plug that fits into the BMS. Really?

How does jet cat expect us to find the right one when they can't supply it on the battery that plugs into to their BMS? Especially when they DID supply the two receiver batt charge leads.

Does anyone know know what plug fits the balance plug on the BMS module?

Thanks
Dave

Old 12-26-2020, 01:51 AM
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Dave Wilshere
 
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Dave

JetCat (Germany) don’t supply batteries with any of their turbines as they can’t ship them anymore. When they could, the battery matched with EH balance plug that was pretty std in Germany, companies like Graupner used EH on all their batteries and Chargers.

All batteries I get in the U.K. now are JST-XH so I provide an adaptor lead from XH to EH if people go that way.

Dave
Old 12-26-2020, 08:48 AM
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Im not sure but I think that the p-200 rx has more power than the p-220 rxi
Old 12-26-2020, 09:04 AM
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Almost exactly the same...but the P-220Rxi is a lot lighter!
Old 12-26-2020, 12:29 PM
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Originally Posted by ddennison View Post
So I went through my 220RXI with ECU version 12 which also has telemetry. I am using the BMS (batt management system ) as well.

I am a bit disappointed that the battery I ordered with the turbine does not have the matching balance plug that fits into the BMS. Really?

How does jet cat expect us to find the right one when they can't supply it on the battery that plugs into to their BMS? Especially when they DID supply the two receiver batt charge leads.

Does anyone know know what plug fits the balance plug on the BMS module?

Thanks
Dave
This is what you need: https://www.der-schweighofer.at/Sens...-65-cm-a210599

Tassos
Old 12-26-2020, 12:36 PM
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Originally Posted by sysiek View Post
Im not sure but I think that the p-200 rx has more power than the p-220 rxi
The older P200 (maybe 8-10 years ago) were indeed much stronger - not anymore though. P220RXi all the way now.... smaller, lighter, more efficient, and can charge your battery which means you no longer need those 3-4,000mAh batteries but you can do away with a 2,000mAh which weighs only 130gr. So all together, with the fuel saving one can save more than 2kg and push about the same as the P200RX.

Tassos
Old 12-26-2020, 06:44 PM
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thanks !

Where did you get the BMS mount (red)?


Last edited by ddennison; 12-27-2020 at 10:05 AM.
Old 12-27-2020, 01:49 PM
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Originally Posted by ddennison View Post
So I went through my 220RXI with ECU version 12 which also has telemetry. I am using the BMS (batt management system ) as well.

I am a bit disappointed that the battery I ordered with the turbine does not have the matching balance plug that fits into the BMS. Really?

How does jet cat expect us to find the right one when they can't supply it on the battery that plugs into to their BMS? Especially when they DID supply the two receiver batt charge leads.

Does anyone know know what plug fits the balance plug on the BMS module?

Thanks
Dave
i looked all over and i ended up using regular 2.54 mm spaced connectors.... basically servo connectors. i get the insulators in 1, 2, 3 and 4 positions.

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