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Old 09-28-2014, 05:18 PM
  #2101  
rdefrei2
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Merlin 1/4 scale.

http://youtu.be/aKRhJMDCj6Q
Old 09-28-2014, 08:30 PM
  #2102  
Chris Nicastro
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Awesome engine, is that recent or an older project?
Old 09-28-2014, 10:43 PM
  #2103  
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Originally Posted by DH71TIGER
Hi guys, here are a few shots of my P51 ............. The cockpit shots were taken a few weeks ago before finish painting ........... This was the first time I had seen her fully assembled, a good exercise, that threw up a couple of issues before she gets to fly.
I would like to hear from somebody, who has actually flown one of these models, what control throws they use ? ? ?

very-very nice work!!!!!!well done!!!!
you have done a nice painting and very clever-discreet weathering!!!!!
Old 09-29-2014, 02:59 AM
  #2104  
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Originally Posted by DH71TIGER
Paul 0088, thank you for the response ................ and the pictures............ Your P51 looks ace !

If you look at post #2083, you will see I was asking about control throws .............. would you be so kind to tell us what control throws you have, when flying yours ?

Thanks in advance

Andrew
I will measure next time out, think I have as much travel as possible on Ail and flap is 45 degrees when landing, some down elv too, not sure of how much till I measure it.
Old 09-29-2014, 07:41 AM
  #2105  
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Thanks Paul, much appreciated .......................... the manual recommends 3/4" up 1/2" down for the elevator ........... this seems very little, is it enough ? ? same with ailerons 1/2" up and down ? ?
Old 09-29-2014, 07:58 AM
  #2106  
DrScoles
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Anyone care to share some of the dimensions of their cockpit tubs? Particularly the armor plate behind the pilot and the length from the cockpit to the back of the seat? I have the iflytaillies 1/5th kit. I blew up the template they give you in photoshop to make it the right scale, still seems too small.

thanks
Old 09-29-2014, 10:21 AM
  #2107  
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Pacoflyer,
I used Bob Violett metal kote paint. Had to airbrush each panel. Half drop black or red to replicate different tones of aluminum.
Charlie
Old 09-29-2014, 10:41 AM
  #2108  
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DH71Tiger,
Good work. I didn't measure throws, but I echo another post. On high rates all the throw you can get with exponential. 15deg flap on takeoff, slave about 2deg down elevator. 47deg flaps (same as real one) with starting 3 to 4 deg down elevator. Note of caution, there is lots of wires/servo extensions inside that bird, pay close attention to all connections. I lost my first Comp Arf to extension connectors that pushed back into thin plastic connectors. Had two battery packs one for receiver which only had throttle and choke attached. The other to all flying surfaces. The main bat lost connection and all I had was throttle and choke. Didn't fly well, ready to play taps. Be sure to lateral balance. Good luck.
Charlie
Old 10-02-2014, 09:43 AM
  #2109  
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Thanks for all the info Charlie, I use Ashlocks for all my servo connections, can you guys get them in the U.S. ............ A Power Box sensor switch with 2 x Li-po batteries with dual connections to the Rx. 1 x Li-po battery through a Powerbox Spark Switch for the ignition.
I will thoroughly check all systems before attempting to fly my 'stang. Still a few jobs to do, next week looks like a probable for first trip to the field for engine running, range checking and ground handling trials.
Old 10-02-2014, 01:40 PM
  #2110  
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Originally Posted by DH71TIGER
Thanks for all the info Charlie, I use Ashlocks for all my servo connections, can you guys get them in the U.S. ............ A Power Box sensor switch with 2 x Li-po batteries with dual connections to the Rx. 1 x Li-po battery through a Powerbox Spark Switch for the ignition.
I will thoroughly check all systems before attempting to fly my 'stang. Still a few jobs to do, next week looks like a probable for first trip to the field for engine running, range checking and ground handling trials.
I used locks for connections. The connectors were too thin thus letting the connection lugs push back into plastic (which had torn), Looked ok, but after examining after crash I had several that were defective. Looks like you have this issue covered. Much luck on pre/flight.
Charlie
Old 10-03-2014, 01:53 AM
  #2111  
pacoflyer
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Thanks Charlie
The paint looks great
Old 10-05-2014, 09:41 AM
  #2112  
peter w h
 
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Canopy mocked up.


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Old 10-05-2014, 01:51 PM
  #2113  
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Originally Posted by DH71TIGER
Thanks Paul, much appreciated .......................... the manual recommends 3/4" up 1/2" down for the elevator ........... this seems very little, is it enough ? ? same with ailerons 1/2" up and down ? ?

was out today, elevator is 30mm up and down, aileron in 30mm up and 25mm down.
25% expo aileron and 35% on elevator
rudder is as much movement as possible and 20% expo.
Old 10-06-2014, 08:02 AM
  #2114  
DrScoles
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When cutting out the three canopy pieces for the front part of the canopy, the piece of lexan is curved. Wasn't the front middle piece flat bulletproof glass??
Old 10-06-2014, 11:36 AM
  #2115  
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Yes, The center windscreen (bulletproof) is flat. I heated the side panels slightly to have them contour to the center flat piece.
Old 10-06-2014, 11:38 AM
  #2116  
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Looking good, Peter. Gave me ideas on the handling of the batteries.
Charlie
Old 10-13-2014, 03:22 AM
  #2117  
DH71TIGER
 
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Thanks Paul for the info on the throws .................

Andrew
Old 10-13-2014, 04:25 AM
  #2118  
TimDavie
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Which Engine did you use?

I put this plane together 2 years ago with a DA 85 and had a friend mill an extension. Balanced the spinner and prop and still had enough vibration to shake the throttle servo loose. Now I am fixing the wings(after an off-field dead stick due to throttle servo vibrating loose) after letting it sit for a year.
Hoping some of you that are subscribed from days ago can tell me....
What is the ideal engine for this plane that doesn't require an extension?
Old 10-13-2014, 05:05 AM
  #2119  
LBJ
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Hi TimDavie, the DA-85 runs rough even without an extension. That's a fact of life. I have that engine on a TBM Zero and even with precision balancing on the prop and spinner, it puts out lots of vibration. For my CARF P-51, I have ordered an MVVS 80cc which was the Evolution 80 until just recently. Chief Aircraft is supposedly making an order on MVVS engines now, so you might get your order in on one. They may order several extra anyway to have them in stock. You'd have to call Chief and ask for Steve Coleman to find out.
Old 10-13-2014, 05:59 AM
  #2120  
TimDavie
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LBJ.
Thanks for the reply and yes the DA 85 shakes A LOT! Let me ask you about going to the MVVS. What made you go with that choice? Extra bearings? Does it fit in the cowl better than any others and are you going to need an extension with this engine also? I am a little hesitant to go down in HP since the plane on the 85 wasn't anemic, but vertical was definitely challenged with this plane. Speed bled off fast in the 45 upline. Very scale you can say. I like to have a little power in reserve however.
Old 10-13-2014, 08:23 AM
  #2121  
LBJ
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Tim,
I did some searching on another engine for the P-51 and ran across some You Tube videos. I was fairly impressed with the results. There are a couple of videos showing the Evo 80 pulling a 99 inch Flying Legends 'Stang as well as a CARF P-51. You can do some searches on You Tube for Evolution 80cc to see what else it out there on video. But, the P-51 on the Evo 80 really looks good. The pilot is extremely smooth and fluid, which makes the flight even more enjoyable. Same pilot doing the flying. Engine never misses a beat. I have to say, the planes fly with authority.

Specs on MVVS 80
http://www.mvvs.cz/mvvs_80_e.html

Flying Legends Maiden Voyage
https://www.youtube.com/watch?v=Kz-5k5QGoG4

Flying Legends P-51 Longer Flight
https://www.youtube.com/watch?v=FRofEiKumrk

CARF P-51D
https://www.youtube.com/watch?v=tq-CsZvB1Jo

Ground run on Flying Legends
https://www.youtube.com/watch?v=puitfWJQfYM

Last edited by LBJ; 10-13-2014 at 08:26 AM.
Old 10-16-2014, 03:33 AM
  #2122  
peter w h
 
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Mike,
Here is how I did it.






Peter.
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Old 10-16-2014, 06:20 AM
  #2123  
DrScoles
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Thanks Peter! I just ordered the longer throw firgelli…
Old 10-16-2014, 11:59 AM
  #2124  
peter w h
 
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Latest pics.





Peter.
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Old 10-16-2014, 12:03 PM
  #2125  
pacoflyer
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Peter,
As always very nice work.
I was wondering if that is a Hyde motor mount that you have installed?

Thanks,
paul


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