Problem with Top Flite Giant Scale P51 ARF
10-29-2013, 07:23 AM
#27
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Location: oakland, CA
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hey guys........take apart the f4u corsair giant scale from top flight the wing web in mine was wrong and some of the web was missing...............i wonder if my kit was built on a monday when everyone was hung over, or a friday when they were in a hurry to go home.
10-29-2013, 08:50 AM
#28
Hi
Here is a thread with the mods , and it even has the address of the original thread here in RCU :
http://www.rccanada.ca/rccforum/showthread.php?t=75885
And here is the original
http://www.rcuniverse.com/forum/rc-w...mishap-51.html
Michel
Here is a thread with the mods , and it even has the address of the original thread here in RCU :
http://www.rccanada.ca/rccforum/showthread.php?t=75885
And here is the original
http://www.rcuniverse.com/forum/rc-w...mishap-51.html
Michel
Last edited by Michel; 10-29-2013 at 08:55 AM.
10-30-2013, 05:15 AM
#29
Well Sorry for the delay,, but my Sciatica has been acting up the last week,, anyway,got into the rafters and looked at the wing, can't really tell more than the ARF because it's full sheeted, but yes, the balsa shear webbing has the grain going the wrong way. This kit is about 4 years old if that matters,
But from what I can tell it's not really webbing but a long jig alignment piece that also acts as sheer, That is the ribs jig into it during assembly. the reason I say that is they look to tight at the glue joint to be individual pieces. Now the wing joiner pocket area does look to have light ply shear webbing. Wing seems to look plenty strong to me
Anyway,, good luck
But from what I can tell it's not really webbing but a long jig alignment piece that also acts as sheer, That is the ribs jig into it during assembly. the reason I say that is they look to tight at the glue joint to be individual pieces. Now the wing joiner pocket area does look to have light ply shear webbing. Wing seems to look plenty strong to me
Anyway,, good luck
07-09-2015, 02:25 PM
#31
has anyone noticed if your mustang was pitch sensitive ? i flew mine for the first flight last night and one.. i had to one ,add down elevator trim and two, it was pitch sensitive even at slower speeds. other than that it flew great. i triple checked the CG and i'm right on with a very slight nose down balance while inverted and gear down. i was on low rate settings the whole time while flying. it seemed floaty on landing but not any problems doing it. WB_1
07-10-2015, 12:57 AM
#32
My Feedback: (3)
Sounds like you are tail heavy. If I'm not mistaken, the P-51 gear swings forward somewhat as it deploys. This means you need to do your CG balancing with the gear up. If you balance with the gear down, and then retract the gear after take off, you are shifting the CG rearward. And, as most folks here will tell you, the plans CG is just a starting point. You need to adjust it based on initial flight performance.
07-13-2015, 09:49 PM
#35
Vertical shear webs for sure and both sides 2/3 rd's the way out, one side is good for the ends. Strength is lost in twisting if the shear webs are not glued to the ribs sides, the whole structure is the spine of the wing. Once the skin is installed it locks every thing in place and to twist it something is going to have to split. Air forces are not going to damage this wing when built right Top FLIGHT P-51 1/5 scale kit show how to build this wing right. I have heard where some RTC and ARTF planes have had wing failure because shear webs installed with the grain running with the spar stringers.
Mine is not coming apart anywhere..
LG
Mine is not coming apart anywhere..
LG
08-11-2015, 01:27 PM
#38
Has anyone had an issue with the wing in a TF GS P51 twisting? A few weeks ago I noticed, while flying, the aircraft starting to behave erratically. I got the aircraft on the ground, and during inspection was able to grab ahold of the wingtip and EASILY twist the being. After i got home, I cut the bottom sheeting off the wing and discovered ALL of the shear webbing was CRACKED. What was odd (to me) was that the webbing was installed with the grain running parallel to the main spars. I have NEVER seen this before, and to my knowledge the webbing should not be installed this way. I was told by TF that they did this on purpose. Anyone care to comment? Anyone have issues like this? Anyone out there that has a TF GS P51 that can verify the direction of the grain on your webbing??????
I would greatly appreciate any feedback.
Thanks!
~Carl
I would greatly appreciate any feedback.
Thanks!
~Carl
