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

Ziroli Spitfire

Reply

Old 09-04-2013, 05:52 AM
  #26  
Ham639
My Feedback: (13)
 
Ham639's Avatar
 
Join Date: Feb 2002
Location: Bremen, IN
Posts: 366
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Red5,

I am using a ZDZ 80 swinging a 24 x 10 three blade. The muffler is a cut-up Bisson. Its tight in there! If I had to do it all over again I would put in a 3W75. Best motor in it's class. The ZDZ runs a little too hot due to the high compression design of the motor. BTW, I have removed over a pound of lead in the nose and she never noticed it was gone.

Ham639
Ham639 is offline  
Reply With Quote
Old 12-01-2013, 07:35 PM
  #27  
smithsfallsbirdguy
 
Join Date: Jul 2008
Location: smiths falls, ON, CANADA
Posts: 84
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Mine is framed up and ready for sheeting, did you guys get anymore flights this summer, any more thoughts about this bird.
smithsfallsbirdguy is offline  
Reply With Quote
Old 12-05-2013, 10:50 AM
  #28  
scatolina
Member
 
Join Date: Nov 2012
Location: Firenze, ITALY
Posts: 83
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I have in mind to buy it.
Please what OS or Evolution Engine could be ok in it?
What scale propeller too?
thanks
Claudio
scatolina is offline  
Reply With Quote
Old 11-28-2014, 08:50 AM
  #29  
R/C 4 ever
My Feedback: (8)
 
Join Date: May 2008
Location: Winston, GA
Posts: 16
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Ziroli Spitfire CG problem--a little help please

Hey guys I sure could use some help on setting up the CG on my Ziroli Spit. I have invested almost two years in the build and it looks great. Problem is it is calling for over 10 pounds of weight in the nose. I can't jam that much weight into it. I used latex paint on it and I may have used 1.5 oz.cloth in all the fiberglass work which I guess is causing the problem. Any ideas would be most welcome. I am thinking the only way out is to build another fuselage. Has anybody else had this problem? I even made a spinner backplate from 1/4" steel plate and that still did not help much. I have a Taurus 4.4 engine in it.

Many thanks,
Chuck
R/C 4 ever is offline  
Reply With Quote
Old 11-28-2014, 12:03 PM
  #30  
smithsfallsbirdguy
 
Join Date: Jul 2008
Location: smiths falls, ON, CANADA
Posts: 84
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hey Chuck
What is your is your weight before the lead
how far back from the leading edge are you balancing it
I also used fiberglass and latex paint .75 oz glass
mine is 30lbs before adding 6 1/2 lbs of lead mounted on brackets on the engine that extend the lead up near the front of cowl also some on the cowl with amazing goop glue
at this weight it still flys well and is actually a floater. My maiden was a dead stick wheels up landing because the engine overheated. Since that time I have had five more very nice flights. I did have to shim the gear more forward as it would not taxi at all. Twice it flipped over during a high speed taxi and smashed the vertical stab.wl
Attached Thumbnails Click image for larger version

Name:	nov 2  2014 028.jpg
Views:	515
Size:	4.54 MB
ID:	2050705  
smithsfallsbirdguy is offline  
Reply With Quote
Old 11-28-2014, 04:19 PM
  #31  
R/C 4 ever
My Feedback: (8)
 
Join Date: May 2008
Location: Winston, GA
Posts: 16
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I will weigh it again tomorrow and post it . I have been dealing with this problem for days and have so many weight figures in my head I truly don't remember. If I might ask what spinner did you use on your spit? I have been building models for quit some time now and use established methods so I was really surprised at how this turned out. At this point I think I have a really nice static display bird. I am shooting for a CG of five inches behind the leading edge of the wing close to the fuselage.
R/C 4 ever is offline  
Reply With Quote
Old 11-28-2014, 05:07 PM
  #32  
smithsfallsbirdguy
 
Join Date: Jul 2008
Location: smiths falls, ON, CANADA
Posts: 84
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I also balanced at 5" with wheels up and upside down. I am using a carbon fiber spinner from hobby king, not very heavy . I also had a nice scale tail wheel but opted for a simple wire one with a small wheel to save weight in the nose.
smithsfallsbirdguy is offline  
Reply With Quote
Old 11-28-2014, 05:56 PM
  #33  
R/C 4 ever
My Feedback: (8)
 
Join Date: May 2008
Location: Winston, GA
Posts: 16
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I blew $90.00 for a real cool looking tail wheel also but it weighs two ounces so I took it off. The reason I asked about the spinner is because I refused to buy the one made by tru turn for $200.00, instead I used the one offered by Dave Platt for his spitfire. It is a perfect fit and I think I paid only $40.00 for it. As I stated before I piled on 10 pounds of lead on it and it still would not balance so I stopped --thinking I had to be doing something wrong. I also pulled the full figure pilot out trying to save weight.

Chuck
R/C 4 ever is offline  
Reply With Quote
Old 11-29-2014, 02:05 PM
  #34  
R/C 4 ever
My Feedback: (8)
 
Join Date: May 2008
Location: Winston, GA
Posts: 16
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Results are in. I weighed the Spit and it weighs in at 33 lbs and 1ounce. That is ready to go except for ballast. After piling on 10 pounds of lead and still not achieving the correct CG I stopped to regroup. I am not sure if I can save this thing or not. I would like to know if anyone else has required this much ballast. Bird guy your Spit looks great and so does mine but the difference is yours flys and mine does not. Not sure where to go from here. Looks like I came in three pounds more than yours for some reason. I did a full cockpit with a full figure pilot but it looks like you did the same. I don't think I was heavy on the glue and epoxy but either way it is what it is. Any suggestions are welcome.



Spirfires Rule!!
R/C 4 ever is offline  
Reply With Quote
Old 01-21-2019, 10:25 AM
  #35  
SpitfireBob
 
Join Date: Jan 2016
Posts: 22
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi there:

I am building the Mk 1 version of the Ziroli Spitfire and came across your beautiful job on the P9374. I am scaling mine to this Spitfire as well. Could I ask a couple of questions? i can't see if you used the flap door hinge design Nick outlined in his plan - on the top of the wing. Do you have any other pictures of the bird? I am powering mine with the 3W 85 XI and Soar WWII 24x10 three-blade prop. ESM retracts (Chinese Robart knock offs but less expensive and functional) I was thinking of latex paint but perhaps the Tamiya spray paint. What paint did you use?
I am very aware of building the tail as light as possible. I will use 1 oz fiberglass cloth, Z-poxy finishing resinIt looks like your AUW is 37 lbs? That should translate into a nice flying bird! How are the flight characteristics?
Thanks for any suggestions you can throw my way. This is my first scratch built plane, but I have been in the hobby for 50 years... I've built and fly the 1/3 scale BSA Super Cub and the Sig 1/3 scale Spacewalker. I have built the Yellow Aircraft and Pica 1/5 scale Spitfires as well.

Bob

585 317-4490
rswensen56@gmail.com
SpitfireBob is offline  
Reply With Quote
Old 03-18-2019, 05:56 PM
  #36  
smithsfallsbirdguy
 
Join Date: Jul 2008
Location: smiths falls, ON, CANADA
Posts: 84
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default




I had a couple more flights and then the horizontal stablizer fluttered and came off. no control left with no tail and She basically be came an 85cc lawn dart. Before that it was flying well. previously my neighbour had damaged the tail by stepping on it while he was holding it for me. I think my repair job was not the best and thats what caused the flutter. Live and learn.
I could not get the flap doors to work properly so I did not add them, paint was latex paint which I love, Tamiya is great put far to expensive, I used a Dle85 and flew 1/2 throttle most of the time.
It is a floater and the flaps are great
no bad characteristics. I would consider building another, I put the gear in a Tony Nijhuis Hurricane.
smithsfallsbirdguy is offline  
Reply With Quote
Old 03-20-2019, 01:16 AM
  #37  
jescardin
My Feedback: (1)
 
Join Date: Sep 2003
Location: Talamanca de JaramaMadrid, SPAIN
Posts: 493
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Sorry for your loss!

Beautifully made both models. Congrats on that.

Best Regards.
jescardin 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