RC Warbirds and Warplanes Discuss rc warbirds and warplanes in this forum.

TF 1/5 Scale P-51 ARF Assembly (1ST MISHAP!!!)

Reply

Old 03-06-2018, 08:41 PM
  #4051  
rossmick
 
rossmick's Avatar
 
Join Date: Jun 2010
Location: Vail, AZ
Posts: 237
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Looks like the wing came in at 7.8 #s and the total plane has weighed in at 23.7 #s. The gear actually weighs 3 #s so they are a little heavier. I also have a removable air scoop. I did move the engine forward 3/16" and also repositioned the three batteries vertically up against the inside firewall, so now I was able to remove .9 #s of lead weight from the nose. To help the balance, I also went with a smaller servo in the tail for the tail wheel.
May not get to fly the plane until next week do to a scheduled event this Friday - Sunday, and all the week day competition practice.
rossmick is offline  
Reply With Quote
Old 03-07-2018, 05:20 PM
  #4052  
spitfire66
 
spitfire66's Avatar
 
Join Date: Jun 2007
Location: Kansas City, MO
Posts: 430
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I was running my P-51 tonight and the Tony Howard exhaust stack rattled loose. I used 30 min epoxy and 2 screws to secure it as recommended by the instructions. I am thinking about trying Hysol 9462 but don't really want to buy the whole applicator kit for $62 at this time. Has anyone used this stuff? Can I mix it like regular epoxy and apply to the shroud or do I need that expensive applicator/kit?
spitfire66 is offline  
Reply With Quote
Old 03-07-2018, 07:19 PM
  #4053  
jchorak
My Feedback: (9)
 
Join Date: Aug 2004
Location: IL
Posts: 149
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by spitfire66 View Post
I was running my P-51 tonight and the Tony Howard exhaust stack rattled loose. I used 30 min epoxy and 2 screws to secure it as recommended by the instructions. I am thinking about trying Hysol 9462 but don't really want to buy the whole applicator kit for $62 at this time. Has anyone used this stuff? Can I mix it like regular epoxy and apply to the shroud or do I need that expensive applicator/kit?
Yes, I lay out on a plastic lid, mix with a mixing stick and apply.
John
jchorak is offline  
Reply With Quote
Old 03-07-2018, 07:50 PM
  #4054  
rossmick
 
rossmick's Avatar
 
Join Date: Jun 2010
Location: Vail, AZ
Posts: 237
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Broken wing

Spitfire66
Hysol is great stuff, but I do use the applicator. I know that some have make up a double dowel glued/screwed to a piece of plywood and push the mixture out on to wax paper and then mix it by hand. looks like it is equal amounts to mix, and it will harden over night. When I am finished, I take the nozzles and push air through them with the compressor and then clean them with acetone so I can reuse them, that seems to work fine.

Down to the fine points now on the 51. Gear was catching the scissors link against the back of the wheel well. I had hoped to not cut an opening in the glass for the air cylinder but I had to open it so I could push the wall back far enough to allow the link to pass. I elected to make the area over the cylinder removable so I expanded the wheel well cover to handle this. The wheel well fiberglass is not really held very well in this area, so I put in some hardwood strips so I can screw the wheel well cover in position. It also allows me to get to the air lines and cylinder for inspection. Photos shows attach points and then the paper templates. Tomorrow I'll cut the 1/16 ply, cover them and screw them in.
Attached Thumbnails Click image for larger version

Name:	20180307_171724.jpg
Views:	88
Size:	3.14 MB
ID:	2258037   Click image for larger version

Name:	20180307_171734.jpg
Views:	75
Size:	3.13 MB
ID:	2258038   Click image for larger version

Name:	20180307_171329.jpg
Views:	69
Size:	3.02 MB
ID:	2258039   Click image for larger version

Name:	20180307_171337.jpg
Views:	79
Size:	3.28 MB
ID:	2258040  

Last edited by rossmick; 03-07-2018 at 07:53 PM.
rossmick is offline  
Reply With Quote
Old 03-29-2018, 03:53 PM
  #4055  
Colin_Mc
 
Colin_Mc's Avatar
 
Join Date: Feb 2006
Location: Dumbarton, scotland
Posts: 201
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Some progress after finishing the wing mods with install of a scale battery, instrument panel and gunsight.

Click image for larger version

Name:	IMG_0147.jpg
Views:	53
Size:	66.0 KB
ID:	2259705 Click image for larger version

Name:	IMG_0181.jpg
Views:	52
Size:	63.0 KB
ID:	2259706 Click image for larger version

Name:	IMG_0183.jpg
Views:	53
Size:	54.1 KB
ID:	2259707 Click image for larger version

Name:	IMG_0185.jpg
Views:	52
Size:	138.1 KB
ID:	2259708
Attached Images     
Colin_Mc is offline  
Reply With Quote
Old 07-11-2018, 07:38 PM
  #4056  
Ralph White
 
Ralph White's Avatar
 
Join Date: Feb 2007
Location: Neoga, IL
Posts: 599
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Have not heard anything on this thread for quite some time. Any news lately? Or is everyone just flying? I'm still in process of building my 2nd TF P51 C "Dody). Painting has me slowed down.
Ralph White
Ralph White is offline  
Reply With Quote
Old 07-11-2018, 08:57 PM
  #4057  
fujiman
My Feedback: (132)
 
Join Date: Aug 2008
Location: Keizer, OR
Posts: 562
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

probably they have either fallen apart or crashed!!!!!!!
fujiman is offline  
Reply With Quote
Old 07-13-2018, 09:16 PM
  #4058  
fytrjok
My Feedback: (2)
 
fytrjok's Avatar
 
Join Date: Apr 2002
Location: Littleton, CO
Posts: 839
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default


Ah, no...still going strong!
fytrjok is offline  
Reply With Quote
Old 07-14-2018, 08:25 AM
  #4059  
Ralph White
 
Ralph White's Avatar
 
Join Date: Feb 2007
Location: Neoga, IL
Posts: 599
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

NICE. Makes me want to work on my P-51C "Dody". Having a hard time getting into the painting.
Ralph
Ralph White is offline  
Reply With Quote
Old 07-15-2018, 11:56 AM
  #4060  
scale only 4 me
My Feedback: (158)
 
scale only 4 me's Avatar
 
Join Date: Jan 2002
Location: Avon Lake, OH
Posts: 9,833
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by Ralph White View Post
Have not heard anything on this thread for quite some time. Any news lately? Or is everyone just flying? I'm still in process of building my 2nd TF P51 C "Dody). Painting has me slowed down.
Ralph White
I just started putting the one that been in my basement for 6 years together last week,, crashed my zero a few weeks ago,,,,, since it's late in the season, I'll fly it stock arf scheme this year,, Mod it over the winter probably
scale only 4 me is offline  
Reply With Quote
Old 08-06-2018, 02:41 PM
  #4061  
scale only 4 me
My Feedback: (158)
 
scale only 4 me's Avatar
 
Join Date: Jan 2002
Location: Avon Lake, OH
Posts: 9,833
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Kit didn't come with a decal sheet,,, so had Callie make me up a Twilight Tear set

Gotta love the Giganomous RCU pictures, LOL I forgot why I stopped posting here

scale only 4 me is offline  
Reply With Quote
Old 08-06-2018, 06:23 PM
  #4062  
sjhanc
My Feedback: (2)
 
sjhanc's Avatar
 
Join Date: Jul 2011
Location: williston, FL
Posts: 581
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default


This is the current build state of my new James Bates B model, with a Vic Catalasan molded fuse. The fiber glassing is finished, landing gear installed, engine mounted, and carbon fiber reinforcement completed. It weighs 17 pounds in this state, and should gross under 24 pounds with the rest of the flight equipment installed, and a paint job. It actually balances right on the CG now. All I have to do is mount the rest where it won't disturb the CG. DA 60 for power.

I had to retire my TF P51-B, at least until I can fix the fuselage cracks it developed. I knew about its tendency to break up after about 100 flights, I had lost my second plane to this years ago. I have been reinforcing the fuse structure in the weak areas ever since. It went past its 300th flight and I did a close inspection to get it ready at the beginning of the flying season. Thats when I spotted two new cracks, one at the front of the horizontal stab and the other on the right side over the thick part of the wing. Either crack would have caused it to break in flight.

Instead of using the molded wing fairings that come with the ARF kit, I had replaced them with a built up wing fairing for a better look. It was obvious that the stronger wing fairing was the only thing holding the fuse together! I am currently moving on from both the TF Mustang and the H9 D model to the James Bates P 51B- C so that I can control the design strength of these planes, When you buy an ARF you only get what you pay for and have to settle for the weak wood and sub-standard sticky stuff the far east calls GLUE that they use in the manufacture of their planes. I'm not being overly critical of these two particular brand's models, I have been assembling ARF models of many different brands since 1974 and have found that they are ALL the same in this respect. I guess their logic is that the pilots will crash them long before any poor quality issues show up, so build 'em cheap.

I reinforce the obvious weak points, but when the whole part has the same construction it will just break somewhere else. My new plane has a molded fiber glass fuse with carbon fiber reinforced bulkheads and I replace the critical wood parts with aircraft grade plywood. I changed the wing spars for much better hardwood spars, then built a removable retract mount that can be removed to replace damaged gear mounts with identical parts I carry with me. I don't believe it is possible to beef the gear mounts enough to handle every hard landing so I made it easy to fix when a bad landing does cause damage.
sjhanc is offline  
Reply With Quote
Old 08-20-2018, 03:57 AM
  #4063  
scale only 4 me
My Feedback: (158)
 
scale only 4 me's Avatar
 
Join Date: Jan 2002
Location: Avon Lake, OH
Posts: 9,833
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by rossmick View Post
Spitfire66
Hysol is great stuff, but I do use the applicator. I know that some have make up a double dowel glued/screwed to a piece of plywood and push the mixture out on to wax paper and then mix it by hand. looks like it is equal amounts to mix, and it will harden over night. When I am finished, I take the nozzles and push air through them with the compressor and then clean them with acetone so I can reuse them, that seems to work fine.

Down to the fine points now on the 51. Gear was catching the scissors link against the back of the wheel well. I had hoped to not cut an opening in the glass for the air cylinder but I had to open it so I could push the wall back far enough to allow the link to pass. I elected to make the area over the cylinder removable so I expanded the wheel well cover to handle this. The wheel well fiberglass is not really held very well in this area, so I put in some hardwood strips so I can screw the wheel well cover in position. It also allows me to get to the air lines and cylinder for inspection. Photos shows attach points and then the paper templates. Tomorrow I'll cut the 1/16 ply, cover them and screw them in.
I maidened mine yesterday,, had the same issue with the Sierra gear binding there but didn't think is was a issue, they worked fine in the shop and on the ground,, I retrofitted with the Robart electric actuators,, , but in use they hung up on the way down on both flights,,, First flight had to land with one gear half way down,, second flight was able to yank it to get it moving down.,, as they say,, back to the drawing board
scale only 4 me is offline  
Reply With Quote
Old 08-20-2018, 11:43 AM
  #4064  
SWORDSN
My Feedback: (13)
 
Join Date: Jun 2004
Location: WILLIAMSTON, SC
Posts: 1,123
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Bugs,bugs bugs they all have them to work out.
SWORDSN is offline  
Reply With Quote
Old 09-04-2018, 05:08 PM
  #4065  
scale only 4 me
My Feedback: (158)
 
scale only 4 me's Avatar
 
Join Date: Jan 2002
Location: Avon Lake, OH
Posts: 9,833
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Yeah,,, seems one strut was binding (bottoming out) against the fiberglass wheel well liner as it came in the up position, I shimmed the mount plate so it had some play and now it works fine,, at least yesterday
scale only 4 me is offline  
Reply With Quote
Old Yesterday, 05:33 PM
  #4066  
Eaglepilot2
 
Eaglepilot2's Avatar
 
Join Date: Oct 2006
Location: Zebulon, NC
Posts: 269
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi fellow P-51 enthusiasts. Iíve been out of the hobby for about 6-7 years and was wondering if Top Flite ever addressed the weak landing gear area. Iím considering one and wanted to make sure if they didnít, that I certainly did!
Thanks in advance!

Last edited by Eaglepilot2; Yesterday at 05:35 PM. Reason: Spelling
Eaglepilot2 is online now  
Reply With Quote
Old Yesterday, 05:46 PM
  #4067  
Chris Nicastro
 
Chris Nicastro's Avatar
 
Join Date: Oct 2005
Location: Coeur d'Alene, ID
Posts: 2,573
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

NOPE!!

Definitely reinforcing the wing is REQUIRED
Chris Nicastro is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service