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TopRCModel FW-190

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Old 03-03-2018, 10:10 PM
  #126  
vertical grimmace
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Originally Posted by Katniss View Post
Why would it cause overheating when it's designed to directly provide airflow to the motor? As long as the engine area is baffled correctly and air exits, it should be a benefit. Understandably there would be a performance hit of a few hundred rpm though.

Because the extra load on the engine facilitates lean running, hence over heating if not properly accounted for. This is not the full scale FW 190. The fan on the full scale was on a gear reduction, not spinning the same rpm as the prop.

Again, good for static display in competition, otherwise.... ho hum! Nobody is gonna care about your scale cooling fan spinning while it is flying. But they will when you are fighting deadsticks from lean runs. In the immortal words of Dave Platt : "It has to fly". I find it best to set up my model airplanes to do just that. These are not the full scale, just a representation.
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Old 03-03-2018, 10:57 PM
  #127  
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I would imagine someone would tune their engine with that fan unit in place so would be compensated for. But you're also right in the fact the fan will add load and if there's pressure change for the carb air, the extra load will exacerbate a lean situation.

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Old 03-04-2018, 07:12 PM
  #128  
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Install of the throttle and choke servo.
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Old 03-06-2018, 05:20 AM
  #129  
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Originally Posted by wingspar View Post
Spent some time working on the main gear install. First, I had to trim off the extra material at the retract mount. Rail spacing was fine but it sat to low in the wing causing interference between the retract and upper wing.
Trial fitted two pieces of 1/8" plywood on top of the rails to help this issue. Layed the retract back down and found that the wheel and strut would be to low in the wheel well. I installed two 1/8 plywood shims ...1/4".... on both upper
part of the mounting rails. With this the wheel and strut sat perfectly in the wheel well and the strut was parallel to the wing surface. Then loaded up the rail mount with West System thickened epoxy before laying down the
plywood piece on top
Wingspar, can you post a picture with the Sierra mains installed in the wings?
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Old 03-06-2018, 03:19 PM
  #130  
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Hope this helps.....
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Old 03-06-2018, 09:34 PM
  #131  
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Originally Posted by wingspar View Post
Finished installing the DLE 111. Looks like I won't be able to use the fan unit at the motor and drive gear for the autostart is right behind the spinner.

Was strafed by Spitfires and took a 20mm cannon shell in the wingtip
Hi Wingspar,

I am not sure about that. Can you give me this measurement? It might still work.
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Old 03-06-2018, 09:38 PM
  #132  
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Originally Posted by vertical grimmace View Post
Because the extra load on the engine facilitates lean running, hence over heating if not properly accounted for. This is not the full scale FW 190. The fan on the full scale was on a gear reduction, not spinning the same rpm as the prop.

Again, good for static display in competition, otherwise.... ho hum! Nobody is gonna care about your scale cooling fan spinning while it is flying. But they will when you are fighting deadsticks from lean runs. In the immortal words of Dave Platt : "It has to fly". I find it best to set up my model airplanes to do just that. These are not the full scale, just a representation.
I've been in contact with most of the german guys who bought the Topflite sized Fan from me an none have claimed overheating issues. The Fans have a profiled blade which helps scoop air into the cowl so on my TF 190 the temp. on the FG84 actually went down by about 5C. It does however cost you about 100-130 RPM. You do need to check, that the air has someplace to get out of the cowl though! Otherwise the warm air will stay in there and you will have overheating problems again.

The first Fan is almost ready. needed to do some tweaking on the printer to get this fan perfect but it looks good now.

Rev
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Old 03-06-2018, 10:54 PM
  #133  
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It's about 1/8" from the prop face to the gearing and about 2 1/2" from the prop shaft center line to the uppermost housing.

Dave N
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Old 03-07-2018, 05:34 PM
  #134  
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Got my Robart replacement retracts from Mike at Gator RC today. Spent this afternoon getting them installed and so far seem to be working great. They are a lot more robust than the TopRC gear. The design is not at all like the TopFlite FW190 gear. I had to add a 1/8” plywood spacer to each side of the mount to stop the wheel from hitting the top of the wheel well. I told Mike I would use the TopRC tail wheel as it fit so good. Engine is mounted(Saito FG90), fuel tank and fuel system, panel for air, fuel, and switches are installed, radio and servos in and working. I think this this is almost ready to go. The last thing is a fan unit that Philipp (Reverend) is working on for us. The design should fit the stock spinner and just have a few mm clearance on the cowl. Can hardly wait to see it.

John
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Old 03-08-2018, 04:34 AM
  #135  
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Originally Posted by aatjame View Post
Got my Robart replacement retracts from Mike at Gator RC today. Spent this afternoon getting them installed and so far seem to be working great. They are a lot more robust than the TopRC gear. The design is not at all like the TopFlite FW190 gear. I had to add a 1/8 plywood spacer to each side of the mount to stop the wheel from hitting the top of the wheel well. I told Mike I would use the TopRC tail wheel as it fit so good. Engine is mounted(Saito FG90), fuel tank and fuel system, panel for air, fuel, and switches are installed, radio and servos in and working. I think this this is almost ready to go. The last thing is a fan unit that Philipp (Reverend) is working on for us. The design should fit the stock spinner and just have a few mm clearance on the cowl. Can hardly wait to see it.

John
Can you post a picture of the gear?
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Old 03-10-2018, 08:00 PM
  #136  
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Originally Posted by Reverend View Post
I've been in contact with most of the german guys who bought the Topflite sized Fan from me an none have claimed overheating issues. The Fans have a profiled blade which helps scoop air into the cowl so on my TF 190 the temp. on the FG84 actually went down by about 5C. It does however cost you about 100-130 RPM. You do need to check, that the air has someplace to get out of the cowl though! Otherwise the warm air will stay in there and you will have overheating problems again.

The first Fan is almost ready. needed to do some tweaking on the printer to get this fan perfect but it looks good now.

Rev
Do you balance thse? If so how?
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Old 03-12-2018, 05:47 AM
  #137  
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Any thoughts about the tail. It seems a little twisty?? Is it necessary to reinforce this area?
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Old 03-12-2018, 05:50 AM
  #138  
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Originally Posted by aatjame View Post
Got my Robart replacement retracts from Mike at Gator RC today. Spent this afternoon getting them installed and so far seem to be working great. They are a lot more robust than the TopRC gear. The design is not at all like the TopFlite FW190 gear. I had to add a 1/8 plywood spacer to each side of the mount to stop the wheel from hitting the top of the wheel well. I told Mike I would use the TopRC tail wheel as it fit so good. Engine is mounted(Saito FG90), fuel tank and fuel system, panel for air, fuel, and switches are installed, radio and servos in and working. I think this this is almost ready to go. The last thing is a fan unit that Philipp (Reverend) is working on for us. The design should fit the stock spinner and just have a few mm clearance on the cowl. Can hardly wait to see it.

John
Sound very nice. No solution from BIGPLANES.NL . Ignoring my mails, even though they accepted (together with TOPRC) that there is a problem with the TopRc landing gear. Poor service

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Old 03-16-2018, 07:18 AM
  #139  
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Originally Posted by Kh@n View Post
Any thoughts about the tail. It seems a little twisty?? Is it necessary to reinforce this area?
I don't think so. Seems fine to me. I did reinforce the Toprcmodel Zero between the cockpit and the tail with CF and epoxy.

Put the tail retract cover on..
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Old 03-18-2018, 06:13 AM
  #140  
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I would like to get one also Reverend.
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Old 03-20-2018, 04:49 PM
  #141  
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The new 6" Sierra wheels arrived for the 190. Excellent!!
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Old 03-21-2018, 03:56 AM
  #142  
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WOW now those are a work of art also; how much did that set you back and does Sierra have more?
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Old 03-21-2018, 04:05 AM
  #143  
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They were included in the price of the retracts. For price, give Darrell a call at Sierra.

Dave N
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Old 03-22-2018, 05:40 AM
  #144  
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Dave, Roberto and I should have our kits next week. Looking forward to seeing yours fly with the big block! I'm still leaning towards a Moki....
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Old 03-22-2018, 09:00 AM
  #145  
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Originally Posted by Reverend View Post
Hi Guys,

just to let you know, I have designed a specific fan for the toprcmodel FW-190 that fits the cowl and the backplate of the original Toprcmodel Spinner. Its 3D printed in BDP, a very sturdy and temperature resisting material (110C)
I would like to get one of your fan units; how can I get one?
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Old 03-23-2018, 12:56 AM
  #146  
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Default Nearly there👍🏻😊 next cg and wheathering👍🏻


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Old 03-23-2018, 09:13 AM
  #147  
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Looking good there PTDAN; has anyone flown thier's yet?
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Old 03-24-2018, 01:30 AM
  #148  
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Hi, can you post a pic of the Saito FG90R3 install ?

Many Thanks
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Old 03-24-2018, 02:29 AM
  #149  
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Hi jamessymons
If it is me youre asking, i have the dle 111 engine installed
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Old 03-24-2018, 02:35 AM
  #150  
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Hi PTDan. Somebody mentioned in one of the earlier replies that they were going to put the Saito in. This is an option i am quite keen on. Your FW looks stunning by the way.

Kind Regards

James
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