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

ESM F7F Tigercat Build

Reply

Old 07-09-2018, 04:23 PM
  #51  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Engine cowl mounts in place.


Last edited by ftjets; 07-09-2018 at 04:25 PM. Reason: attachment not shown
ftjets is offline  
Reply With Quote
Old 07-09-2018, 06:19 PM
  #52  
flyer1966
My Feedback: (3)
 
flyer1966's Avatar
 
Join Date: Nov 2011
Location: Porteville, CA
Posts: 90
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Tigercat wing center section

Looking great. I havenít started mine yet. Iíve noticed that my Nacelles have a gap weíre they mount or glue to the wing center section at the trailing edge. Did yours have that issue?
flyer1966 is offline  
Reply With Quote
Old 07-10-2018, 12:42 AM
  #53  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by flyer1966 View Post
Looking great. I havenít started mine yet. Iíve noticed that my Nacelles have a gap weíre they mount or glue to the wing center section at the trailing edge. Did yours have that issue?
There were small gaps in mine that wouldn't have affected anything flight wise but looked ugly. That is one reason I wanted a mechanical bond. The screws allowed me to pull the pods in tight and eliminate most if not all of the gaps and ensure that the epoxy bond was good and tight. I didn't show it in the pictures but there are backing plates on all of the lightning hole inserts I used to mount the blind nuts. If you are interested in using that method, I would be happy to share some of those special parts or any of the parts I created. Hate to spend all that time designing them just to be used once.
ftjets is offline  
Reply With Quote
Old 07-10-2018, 11:58 AM
  #54  
flyer1966
My Feedback: (3)
 
flyer1966's Avatar
 
Join Date: Nov 2011
Location: Porteville, CA
Posts: 90
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Tigercat parts

Thank you very much. I would be interested in the parts for bolting the Nacelles on. My email is fosterp51@yahoo.com. Just let me know how much you want for the parts.
flyer1966 is offline  
Reply With Quote
Old 07-10-2018, 03:53 PM
  #55  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by flyer1966 View Post
Thank you very much. I would be interested in the parts for bolting the Nacelles on. My email is fosterp51@yahoo.com. Just let me know how much you want for the parts.
Not interested in making money on it. I'll just send the patterns I used and laser cut the parts in the morning. Just pay for shipping and i'll be happy. I'll try to add some instructions and additional pictures to explain how I did it in detail.
ftjets is offline  
Reply With Quote
Old 07-18-2018, 12:51 AM
  #56  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Taking a short break to replace landing gear struts on my jet. Should be back on the build shortly.
ftjets is offline  
Reply With Quote
Old 07-30-2018, 03:58 PM
  #57  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

New struts on the jet so i am back on the TC build. Got a few things accomplished. The mounting blocks for the back of the wing were already glued in place but the front mounts were not. After drilling for the mounting bolts (1/4") I laser cut mounting plates and installed blind nuts. I bolted the wing on with extra long bolts and brushed on epoxy to the mounts and the fiberglass saddle. Then i snugged the bolts and let it set. After that i brushed more epoxy and reinforced the joint with triangle stock. It isn't pretty but it is plenty strong.


ftjets is offline  
Reply With Quote
Old 07-30-2018, 04:03 PM
  #58  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Got the landing gear set up. Again, i laser cut spacers to drop the gear far enough for the wheels to clear the top of the nacelles. They were hitting the top of the nacelles when retracted. It took 5/8" worth of spacers to make the wheels clear.


ftjets is offline  
Reply With Quote
Old 07-30-2018, 04:10 PM
  #59  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Landing Gear all set up. Yes, i did notice the off set in the nose gear. Guess i will have to shim that out.

ftjets is offline  
Reply With Quote
Old 07-30-2018, 04:23 PM
  #60  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I have been building long enough to know that there are always set backs and issues that you just don't catch in the building process. It was my intention to keep the wing center section mounted and simply remove the wingtips for transport. It seemed like a good idea at the time. What i never realized is that after installing the retracts i could not get my hands deep enough into the nacelles to install/remove the forward mounting screws. I decided to leave the wingtips mounted and remove the wing assembly for transport. I intend to use the Futaba S.Bus setup so there will be a minimum of wires to connect. I will try to set up the main retracts within the wing assembly if possible to eliminate the air hose connection. I did drill holes in the front and rear mounting blocks to utilize alignment dowels so the wings will align properly when installed at the field. It was impossible to drill the wing mounting holes accurately enough to simply bolt them on and have them align properly. One thing i have noticed is that this thing is heavy. I did a preliminary balance check with just the Eflite 160 motors installed and it appears to be very nose heavy. I'm not sure i can place enough servos and accessories in the back to compensate. We will see.


Put it on the scale with only motors and landing gear mounted. She's at about 22 pounds already. I'm guessing she will be at 30 pounds after electronics and batteries. The manual lists the flying weight at 23.2 pounds. At some point i will remove the gear and motors to finish things up. I will weigh it again dry and see how how heavy it was from the factory. Should have done that already i guess.

Last edited by ftjets; 07-31-2018 at 02:06 AM. Reason: Add new information
ftjets is offline  
Reply With Quote
Old 08-18-2018, 09:33 PM
  #61  
Bob Paris
My Feedback: (13)
 
Join Date: Nov 2002
Location: Lahaina, HI
Posts: 1,862
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi Guys,
I managed to get one of the last kits from VQ Warbirds. I also picked up Sierra retracts, wheels and brakes. I have yet t start the build, but plan on using twin cylinder 30cc gas engines... I was looking at the 19cc three cylinder radials, but I doubt they will have enough power for the model. Any inputs would be nice...
Soft Landings Always,
Bobby of Maui
Bob Paris is offline  
Reply With Quote
Old 08-20-2018, 03:56 AM
  #62  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi Bob,
Welcome to the club. I hope you can extract some useful information here to help your build along.
ftjets is offline  
Reply With Quote
Old 08-20-2018, 11:40 AM
  #63  
SWORDSN
My Feedback: (13)
 
Join Date: Jun 2004
Location: WILLIAMSTON, SC
Posts: 1,123
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by Bob Paris View Post
Hi Guys,
I managed to get one of the last kits from VQ Warbirds. I also picked up Sierra retracts, wheels and brakes. I have yet t start the build, but plan on using twin cylinder 30cc gas engines... I was looking at the 19cc three cylinder radials, but I doubt they will have enough power for the model. Any inputs would be nice...
Soft Landings Always,
Bobby of Maui
Who makes the 30cc twin? That will be an interesting install.
SWORDSN is offline  
Reply With Quote
Old 08-21-2018, 02:09 AM
  #64  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I have been held up a little due to that pesky work thing but have made some progress. I am working on attaching the control surfaces. I wanted to use the large Dubro pinned hinges with removable cotter pins but the gap is way too wide. I don't like using CA hinges on larger planes but I figured I would just add extra hinges. Getting them centered was a trick and some of the factory hinge cuts were not on center so I had to do a little fabricating. My standard hinge line cutter was not large enough so I made my own. It worked quite well.

ftjets is offline  
Reply With Quote
Old 09-25-2018, 01:10 PM
  #65  
twowingtj
 
Join Date: Jul 2014
Posts: 1
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Just picked up an unstarted ESM TigerCat with the Century Jet electric retracts. Got it from a fellow club memebr that, at 86 years young, decided he would never get around to building it. It will be electric powered. I have a BUSA Taube 90 going on the bench next, but will follow this thread in prep for the ESM build.

Plans are to go CF on the wing tube with the wing center section and nacells permanently assembled and the outer wing panels removable. I have noticed the challenges that you've already tackled with that and will give some thought to other ways to accomplish it.

I just finished a 1/3 scale Fokker D-VIII (Flying Razor) powered by a 100cc electric in a 12S 10000mah configuration. Had to do a lot of engineering on that project as well.
twowingtj is offline  
Reply With Quote
Old 09-25-2018, 02:49 PM
  #66  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Welcome to the club twowing. I have been held up with the Futaba issue but was finally able to order a receiver this week. I hope to get back on it when the receiver and Futaba servos arrive on Thursday.
ftjets is offline  
Reply With Quote
Old 10-15-2018, 10:55 AM
  #67  
ACCURA
 
ACCURA's Avatar
 
Join Date: Mar 2014
Location: Madrid, Spain.
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hello everyone from Madrid, Spain. I recently bought this F7F model from ESM and I have been reading your thread with interest, it clarifies doubts about the assembly of the model. I would like to ask you a question about the front landing gear. Does the front-end actuator rotate exactly ninety degrees or rotate more than ninety degrees? I am going to buy the electric actuators and I have to be clear about this point.
Apparently by the actuator seat are ninety but I would appreciate clarifying this point.


It would also be interesting to know if you know any store where you can buy the struts replicas of the original, in Big Planes Netherlands, where I bought the plane, do not have them in stock ... Have you ever mounted an alternative landing gear to the original one?

Also, if you are so kind, tell me the diameter of front and rear wheels that you have used.

Thank you for your safe response and received a greeting from Spain.

Last edited by ACCURA; 10-15-2018 at 11:12 AM.
ACCURA is offline  
Reply With Quote
Old 10-19-2018, 11:41 PM
  #68  
ftjets
Thread Starter
 
ftjets's Avatar
 
Join Date: Nov 2007
Location: Fort Myers, FL
Posts: 459
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hello Accura
I purchased the Sierra air operated gear recommended by VQ. The nose gear side plates are marked 105 deg. I hope that helps.

The main gear wheels are 4.5 inches and the nose gear wheel is 3.5 inches on my Sierra gear set.

Last edited by ftjets; 10-19-2018 at 11:44 PM.
ftjets is offline  
Reply With Quote
Old 10-22-2018, 05:43 AM
  #69  
ACCURA
 
ACCURA's Avatar
 
Join Date: Mar 2014
Location: Madrid, Spain.
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hello everyone, if someone unfortunately had the bad luck to crash his F7F I would be willing to buy the struts of the plane. Please, if you know someone who could sell them I would be grateful. The postage to Spain run of my account of course. regards
ACCURA is offline  
Reply With Quote
Old 10-28-2018, 11:23 AM
  #70  
luckyshot
 
Join Date: Dec 2011
Location: , AZ
Posts: 14
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Sierra gear

Anyone know how to get Sierra gear in with fuel tank in the way thx
luckyshot is offline  
Reply With Quote
Old 10-28-2018, 01:20 PM
  #71  
Whiskey Bravo
My Feedback: (31)
 
Whiskey Bravo's Avatar
 
Join Date: Feb 2002
Location: Waterloo, IA
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I moved the tanks to the bottom of the cowls. PITA.
Whiskey Bravo is offline  
Reply With Quote
Old 11-03-2018, 08:07 AM
  #72  
ACCURA
 
ACCURA's Avatar
 
Join Date: Mar 2014
Location: Madrid, Spain.
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hello, could you tell me the length of the struts up to the axis of the wheels, both the front and the main wings? Thank you
ACCURA is offline  
Reply With Quote
Old 11-05-2018, 07:10 AM
  #73  
ACCURA
 
ACCURA's Avatar
 
Join Date: Mar 2014
Location: Madrid, Spain.
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by Whiskey Bravo View Post
I moved the tanks to the bottom of the cowls. PITA.
It's not a good idea, the length of the tygon is too long and forces the carburetor to do too much work sucking gasoline. I would not do it, in fact I go to place the deposits in mine stuck to the engine frame. This is only my opinion of course.
ACCURA is offline  
Reply With Quote
Old 11-05-2018, 07:15 AM
  #74  
Whiskey Bravo
My Feedback: (31)
 
Whiskey Bravo's Avatar
 
Join Date: Feb 2002
Location: Waterloo, IA
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

It only moves the tanks a couple of inches down and it flys fine.
Whiskey Bravo is offline  
Reply With Quote
Old 11-05-2018, 07:21 AM
  #75  
luckyshot
 
Join Date: Dec 2011
Location: , AZ
Posts: 14
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Moving the tanks down just Interfere with the retracts more. Due to wheel clearance I had no choice but to shim the retract down 3/4" now I'm wondering if I need to also shim nose gear.
luckyshot is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service