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UMS Evolution Radial Care and Operation

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UMS Evolution Radial Care and Operation

Old 11-15-2014, 05:12 AM
  #1351  
Maxam
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Who has the h9 corsair? What is its ready to fly weight? -Tom
Old 11-15-2014, 10:16 AM
  #1352  
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With EVO 7-77, 14.5 kg
Old 11-15-2014, 11:31 AM
  #1353  
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Thank you for that info. Well John I guess the P47 will be OK at 30 pounds. -Tom
Old 11-15-2014, 02:01 PM
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Ok. So I had posted a question on another site, response was his plane at 30lbs running a Zen G-62 which is only 3.8ci. Was the concern over rpm's produced? That's the difference I see comparing motors. I'm still learning how to match motor to frames besides using designer specs and wonder what your thoughts were on the iffy flying.

Thanks,
John
Old 11-15-2014, 03:26 PM
  #1355  
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John, I have a 7-70 on a 91 inch corsair but it weighs a ridiculous 20.5 pounds. The performance is excellent even with a less than optimal prop. So I asked about the performance of a corsair that is slightly smaller yet weighs over 30 pounds. People really like the combo so the performance should be good with your P47. The concern is the amount of power. I am saying my concern might be unfounded due to other peoples satisfaction. A red flag in my head does not mean I am right! The real corsair and p47 had the same engine with similar performances at level flight at the same manifold pressure. Christiantofastforyou, could you comment on your planes performance? -Tom
Old 11-15-2014, 03:26 PM
  #1356  
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..

Last edited by Maxam; 11-15-2014 at 03:28 PM. Reason: duplicate post
Old 11-15-2014, 05:04 PM
  #1357  
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Thanks for the reply. Like I said, I am just starting to learn about giant scale and all that goes into it. If the 7-77 wan't going to fit the build I was going to fall back on Saito. I see the 3 blade recommended prop is 22x10, is this what you run?


John
Old 11-15-2014, 07:58 PM
  #1358  
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Yes it is . The warbird painted black Xoar 22x10 3 blade. Not for P47!!! use a 22x12 2 blade for flying. -Tom
Old 11-16-2014, 09:04 AM
  #1359  
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Originally Posted by Maxam
John, I have a 7-70 on a 91 inch corsair but it weighs a ridiculous 20.5 pounds. The performance is excellent even with a less than optimal prop. So I asked about the performance of a corsair that is slightly smaller yet weighs over 30 pounds. People really like the combo so the performance should be good with your P47. The concern is the amount of power. I am saying my concern might be unfounded due to other peoples satisfaction. A red flag in my head does not mean I am right! The real corsair and p47 had the same engine with similar performances at level flight at the same manifold pressure. Christiantofastforyou, could you comment on your planes performance? -Tom
Hi Tom,

Regarding performance, I would say is just enough. You can see here a "sample": http://youtu.be/n4iXbgbv6Lw
The only problem I have is cooling, no room for baffles, so I decide to go with Saito 84R3 and get also an extra HP. The EVO 7-77 will go on a Sterman 87".

Cristian
Old 11-16-2014, 09:43 AM
  #1360  
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Thank you Cristian. The rough grass made the takeoff iffy but in the air it looked strong. There you go John. -Tom
Old 12-06-2014, 12:33 PM
  #1361  
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Hello, I just received my 7-35 and would like to put an A-Style Spinner on it like Maxam has on his Corsair. Can someone please tell me what I need to purchase and where? Also, does anyone have any info on a Corsair ARF that the 7-35 can handle?

Thanks to all for the great info on this forum. I'm so glad I found it.

Gary Mac

Last edited by garyFL; 12-06-2014 at 05:44 PM.
Old 12-08-2014, 05:59 AM
  #1362  
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Gary, You can get the spinner nut from True-turn. Make sure you tell then the thread size. 8x1 mm??????? I think. IThere used to be a smaller Black Horse corsair that would fit that engine. Been out of production but put up wanted ads in RCU and RCG. -Tom
Old 12-08-2014, 06:47 AM
  #1363  
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Thanks Tom. I will shoot an email off to True-Turn and see what they have. I will research the thread size and confirm if it is 8x1 mm. I've been looking for a Corsair for the 7-35 but have had no luck. I should have also bought the 777 when I had the chance to buy it with 15% off at Horizon during black Friday. Again, thanks for the help. - GaryMac
Old 12-08-2014, 02:10 PM
  #1364  
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Sure Gary, The threads ARE 8x1 mm -Tom
Old 12-08-2014, 02:20 PM
  #1365  
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I just got off the phone with True-Turn and ordered the hub. I think I'm going to mount the 7-35 on my Great Planes Giant Stik and buy the 777 and put it on a Hanger 9 Corsair. Sadly, I was unable to find a Corsair for the 7-35.

Thanks for all your help.- Gary
Old 12-08-2014, 02:29 PM
  #1366  
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Anybody have a collector ring for a 999?
Old 12-08-2014, 04:08 PM
  #1367  
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Originally Posted by redball8
Anybody have a collector ring for a 999?
http://www.horizonhobby.com/silencer...9-99-evo999114

They show it as being in stock. I just ordered one from them for my 7-35


Hope this helps you. - Gary

Last edited by garyFL; 12-08-2014 at 05:29 PM.
Old 12-08-2014, 05:19 PM
  #1368  
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Sure does - thanks, Gary! For some reason I couldn't find it this afternoon ...
Old 12-09-2014, 04:03 PM
  #1369  
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Has anyone ever done business with this company?

http://www.haichuangxinr.com/evoluti...99-p-2173.html

They have this engine for sale for an ungodly low price. I have not checked their shipping cost yet
but would like to know if anyone has done business with them.
Old 12-09-2014, 04:09 PM
  #1370  
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Remember, if you require any warranty work, most likely Horizon Hobby won't help you. You'll be on your own.
Old 12-09-2014, 04:30 PM
  #1371  
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I would not order from them. Seems too good to be true. They only accept Western Union or Wire Transfer for payment and they are in China.

GaryMac

Last edited by garyFL; 12-09-2014 at 04:38 PM.
Old 12-09-2014, 04:39 PM
  #1372  
Speedy-Gonzales
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Warranties are just a piece of paper. I have been in this grand hobby for over 50 years and not once had a warranty claim.
Hundreds of engines, radios, and kits. The only claim I ever filed was with UPS because my item was broken before I even
received it. If it's an inexpensive item it will most usually be repaired or replaced. If it is an expensive item the manufacturer
will claim the user to be at fault for some reason or at minimum you will not see your warranty repaired item for 3-6 months.

I have purchased 3 new DLE engines in the last 2 years and the very first thing I do is void the warranty by removing the factory
rings and installing Bowman rings. The new rings are worth voiding the warranty to have a better running engine. I would rather
buy parts and do the repairs myself anyways.

P.S..........Everything comes from China whether you buy from a USA distributor or direct.

Yeh.....I don't like their payment options. My question is.......how does the item double in price between China
and Horizon Hobby when the engines are made in India/Indonesia ?? Therein lies your "warranty".

Last edited by Speedy-Gonzales; 12-09-2014 at 04:51 PM.
Old 12-09-2014, 05:20 PM
  #1373  
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There was a website like this a few years back. Key is the payment terms, ie non-recourse payment. They don't have any stock - they'll just take your money, and good luck trying to get it back. That's how they can offer things for half price!
Old 12-09-2014, 05:28 PM
  #1374  
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The plot thickens...........interesting....I will inquire about that. I have had 2 correspondences with them in the last 45 minutes.
That does not necessarily mean they are legit.
Old 12-09-2014, 05:39 PM
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There was a fellow a few years back that had ordered all kings of stuff, something like a $13,000 order, and he had many conversations with the "company", even mentioned several individuals with whom he had spoken. In the end he couldn't get them to accept any form a payment that would provide him some protection, so he passed.

Just a word to the wise. I've had people sell me things and disappear once payment was made. Especially around the holidays, for some reason that brings out the scammers. The few percent a service like PayPal charges is well worth the piece of mind - in each instance they refunded my entire payment.

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