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Old Jun 22, 2015, 09:28 AM
jtalley10 is offline
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I was given a crashed FMS 1700mm P-47 yesterday, the Silver version. Don't know what version it is but is probably a couple years old. Needs a left wing, tail wheel retract, decals , and hatch. It has the nice cockpit in it. Ordered the parts from Diamond, with the sale was $108. I have several of the 1400mm birds, my favorite of course being the Gunfighter V7, been flying it for a couple years. Looking forward to flying this big bird and having some fun. Any advice or suggestions are welcome.


Jim
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Old Jun 23, 2015, 10:33 PM
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Flew the maiden flight on my P-47 today. It's a nice smooth flying airplane.
Now it's just watch the timer closely for the next flight to get a feel for flight times. It's looking like I should be able to set an 8 or 9 min timer with the 5500 packs.
Rick
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Old Jun 25, 2015, 02:00 AM
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I have a v1 and my wings are creased from flexing. I was wondering if anyone has put v2 wings on a v1 fuselage. And if so, is there any modding that has to be done? Thanks.
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Old Jun 25, 2015, 01:50 PM
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Is there a listing of the differences between v1 and v2. I did not see anything listed on the vendor pages, but I could have missed it. I purchased one in May and thought it would have the metal motor plate included but it does not. I ordered the metal motor plate seperately as I do not want to relive what happened to my Corsair. My plane does have the gold 300kv motor but I will swap it out with a 360kv after a few test flights just as I have my P-51 and Corsair. I am also converting mine to a razorback just as I did my TF P-47. I'm waiting on a razorback canopy to get back in stock to proceed with the build. Anxious to get it flying!

Reno
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Old Jun 25, 2015, 10:16 PM
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If I recall correctly, I stuffed a longer cf rod through the existing one quite a bit further. I think the mods were posted early in the thread. As well as the retracts are better.
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Old Jun 26, 2015, 05:21 AM
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Maximum voltage for servos/retracts

Just a local neighbourhood info sharing...

I have the 1700mm P51 and I'm running an opto esc and it's been bugging me not knowing what the max voltage the servos/retracts will tolerate.
Earlier I had asked the question in the P51 thread and general consensus seemed to be that a 6 volt nimh receiver batt should be ok.
I discovered that the higher voltage (upwards of 7 volts fully charged) threw the sequencer out of wack, so I dropped down to a 4.8v nimh.

I decided to email FMS and ask the the question directly, their answer is 5 volt nominal, 6 volt maximum.


I hope this clears up any doubt anyone else might have... I'm probably the only one here who runs an independant power supply to my receiver... healthy habits from ye olde IC days...

At ease Gentlemen, as you were...

Cheers!
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Old Jul 28, 2015, 07:12 PM
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hello people.. can someone help me . before I buy this bad boy I need to know if it will fly with stock motor ? I live at 5500 feet elevation. can some one tell me what kind of watts and amps wot( give ur location or elevation)would be very helpful in my decision to buy..... thx glenn
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Old Jul 29, 2015, 10:17 PM
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axerhand1976, I no longer have mine but I was flying both the 270KV and 300KV motors at 4500 ft elevation with no problems. Stable cruising was achieved at about 50% throttle on the 270KV and a little less with the 300KV. I didn't record the consumption numbers but they were well within the tolerance for the stock ESC.
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Old Jul 30, 2015, 03:29 PM
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Quote:
Originally Posted by axerhand1976 View Post
hello people.. can someone help me . before I buy this bad boy I need to know if it will fly with stock motor ? I live at 5500 feet elevation. can some one tell me what kind of watts and amps wot( give ur location or elevation)would be very helpful in my decision to buy..... thx glenn
There are some measures of the 300kv and 360kv motors over on the 1700mm P-51 forum, at this location:

http://www.rcgroups.com/forums/showp...postcount=9897

I think the problem is not "will it fly" but "will it fly fast enough." The wing loading on these big foamies is very light. It is amazing how slowly they can crawl down the runway without stalling. I'm sure you would have no trouble maneuvering around even at 5500 foot elevation. But at the other end of the spectrum, they are also not super impressive in a high-speed pass. People put a lot of effort into raising the power just because they get a bit boring after you've mastered them. I think that is more a concern (or would be a concern after you've flown it a few times).
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Old Jul 30, 2015, 09:06 PM
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thx flyingGolem... its seem like most of the planes i buy i have to change motors...i have 3 dynam planes(1200mm) had to change all 3 motors . the stock 500kv motors i was only getting 340 watts(rrl low) changed them out for a 640kv now i have 550 watts .... i try to get atleast 120 watts/lb...
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