Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Scale Helicopters > Scale Projects <790


Scale Projects <790 Scale Projects <790 Discussion


Reply
 
LinkBack Thread Tools Display Modes
Old 07-08-2014, 06:29 PM   #1 (permalink)
HF Scale Support
 
Posts: 3,564
 

Join Date: Jan 2010
Default Jet Ranger Reloaded

So after many other projects have been finally finished, it's time for one of my own. I have wanted to get a new body for my Ranger for quite a while now as it is badly beaten up from many hard landings and a few fouled up autos. I was thinking about doing up an OH-6A Kiowa but felt that the window mod would not hold up over time so I wimped out and decided to build it up as a CH-139 Jet Ranger from 3CFFTS Portage La Prairie, Manitoba. It has had some changes over the years but I can do it as a single external landing light as in the picture below, or as the standard twin internal landing light system.

I had wanted to remove the square external extension to the chassis mount but I was not up to it with the old body. This time around, I have taken it into account from the beginning and it looks like it will work just fine. I had JestRR make up a low set of skids when he made up my tall skids that are on it now and all I need to do is to build up a bit of a block under the front so it sits at the right angle. It looks like it will be a fairly easy build and with the lessons learned from the first one, this one should be around for a very long time. I just did a check out of the number of flights on this helicopter and it is now nearly three hundred flights and holding up very well indeed. Take care.

Don
Attached Thumbnails
Click image for larger version

Name:	3CFFTS Late Colour Scheme.jpg
Views:	614
Size:	140.4 KB
ID:	520844   Click image for larger version

Name:	Body Prep 1.jpg
Views:	432
Size:	113.7 KB
ID:	520845   Click image for larger version

Name:	Body Prep 2.jpg
Views:	431
Size:	23.0 KB
ID:	520846   Click image for larger version

Name:	Body Prep 3.jpg
Views:	414
Size:	25.6 KB
ID:	520847   Click image for larger version

Name:	Body Prep 4.jpg
Views:	348
Size:	30.1 KB
ID:	520848  

Click image for larger version

Name:	Body Prep 5.jpg
Views:	329
Size:	24.7 KB
ID:	520849   Click image for larger version

Name:	Body Prep 6.jpg
Views:	341
Size:	108.6 KB
ID:	520850   Click image for larger version

Name:	Body Prep 8.jpg
Views:	328
Size:	130.8 KB
ID:	520851   Click image for larger version

Name:	Body on Skids.jpg
Views:	395
Size:	128.7 KB
ID:	520852  
Keyrigger is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 07-08-2014, 09:53 PM   #2 (permalink)
Registered Users
 

Join Date: Apr 2009
Default

Nice. Is that a .30 fuse? You got me thinking now about that spare one I got, lol. I was thinking of a Kiowa with the doors cut out on that. Well, I look forward to your build How long is JestRR's lead time lately?
SidewaysLS4 is offline        Reply With Quote Quick reply to this message
Old 07-08-2014, 10:47 PM   #3 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

Thanks. I don't know what his lead time is these days but send him a PM to find out. It is the 30 size.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-09-2014, 12:58 AM   #4 (permalink)
Registered Users
 

Join Date: Nov 2004
Default

Looks like another masterpiece in the making.
__________________
Phil
MotorRotor is online now        Reply With Quote Quick reply to this message
Old 07-09-2014, 09:42 AM   #5 (permalink)
Registered Users
 
Posts: 2,646
 

Join Date: Mar 2008
Default

Love the Ranger, have started building the 1/4 scale Vario one for turbine but have converted the mechanics to electric, in pod and boom form getting 9 mins at 900 rpm on 5000mah 12 cell packs.

Photo of said bird.

Enjoy the build Don and keep the photos coming.
__________________
Regards.
Ian

Henseleit TDR, Minicopter. Mikado. Jeti Carbon Red DS16. Plus scale stuff
satsuma is offline        Reply With Quote Quick reply to this message
Old 07-09-2014, 10:26 AM   #6 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

Thanks guys. Ian, I think my entire helicopter body could fit in that doghouse, lol. Yours looks like you could even take your little buddy up for a ride and have room to spare in the cockpit. I'll be looking for your build as well. Take care.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-09-2014, 08:27 PM   #7 (permalink)
Registered Users
 

Join Date: Jan 2010
Default

Great Works so far..Don,

Did you reglassed the flat bottom or simply sanded them off?



Cheers,
George
HeliKid is offline        Reply With Quote Quick reply to this message
Old 07-09-2014, 11:52 PM   #8 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

I added a layer of Hysol and heavy glass cloth in the area that was to be ground down. It worked very well and why I used Hysol rather than epoxy resin was that I found Hysol adhered to the glass better than fresh resin. By the time I get the rest of the plywood installed for the chassis and landing gear to be fixed to, it will become solidified with the Hysol. It is going to take me a bit of work and the bottom of my chassis to set all the holes for the chassis and Bambi Bucket. Also, the spots for the landing gear will be made and I will use a nut and washer captured by Hysol. Works perfectly in the old body to hold the existing landing gear. Take care.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-10-2014, 02:41 AM   #9 (permalink)
Registered Users
 
Posts: 2,646
 

Join Date: Mar 2008
Default

You have done a GREAT job of removing the flat section, SMOOOOTH
Hysol IS amazing stuff, use nothing else for ALL my structural work.
__________________
Regards.
Ian

Henseleit TDR, Minicopter. Mikado. Jeti Carbon Red DS16. Plus scale stuff
satsuma is offline        Reply With Quote Quick reply to this message
Old 07-10-2014, 06:11 AM   #10 (permalink)
Registered Users
 

Join Date: Sep 2011
Default

Sats

That is some Jet Ranger your building..what's the AUW going to be?
Stabes70 is offline        Reply With Quote Quick reply to this message
Old 07-10-2014, 01:17 PM   #11 (permalink)
Registered Users
 
Posts: 2,646
 

Join Date: Mar 2008
Default

AUW should be with all lipo's on board, about 17kg, that's what I am aiming for, it's large at 2.5 mtr long, but if it's as nice as the xlv I have then easy to fly, just got to remember the weight when you want to stop it

Back to Don's Ranger
__________________
Regards.
Ian

Henseleit TDR, Minicopter. Mikado. Jeti Carbon Red DS16. Plus scale stuff
satsuma is offline        Reply With Quote Quick reply to this message
Old 07-10-2014, 04:08 PM   #12 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

And on that note, lol, here are some shots of the floor installation that I have been at since last night. it is 1/8" birch ply and very good quality. I had planned to make this one piece but the angle that it would sit at would mean a lot of filler under it, so I split the floor in two parts. I will need two filler strips for the rear chassis mount and for the Bambi Bucket bracket but both seem to only need a single 1/8" spacer. It was nice to be able to get the chassis in so quickly and to my surprise, the clearance of the tail pushrod was really tight, as I had never bothered to put a flashlight down the other body to have a look. With the light that came in from having no paint, it was very clear how close it was in the other body, too. Now comes the famous waiting period as the Hysol sets, sigh.

Maybe tonight, I can get the spacers made and installed. I could have the new body up in the air by the weekend and what is really cool is that Callie sent an email this morning and my graphics will be shipped tomorrow sometime. WOW. Now I need to find out what colour the yellow is, as it is the same as the yellow that is used by Canada, the Netherlands, and a few other countries on their SAR helicopters and aircraft.
Attached Thumbnails
Click image for larger version

Name:	Floor Installation 1.jpg
Views:	359
Size:	129.3 KB
ID:	521220   Click image for larger version

Name:	Floor Installation 3.jpg
Views:	362
Size:	131.7 KB
ID:	521221   Click image for larger version

Name:	Floor Installation 4.jpg
Views:	344
Size:	132.0 KB
ID:	521222   Click image for larger version

Name:	Floor Installation 5.jpg
Views:	315
Size:	131.7 KB
ID:	521223   Click image for larger version

Name:	Floor Installation 6.jpg
Views:	322
Size:	31.6 KB
ID:	521224  

Click image for larger version

Name:	Rough Install 1.jpg
Views:	546
Size:	112.8 KB
ID:	521225   Click image for larger version

Name:	Rough Install 2.jpg
Views:	403
Size:	44.4 KB
ID:	521226   Click image for larger version

Name:	Cutting it Close.jpg
Views:	350
Size:	24.7 KB
ID:	521227  
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-11-2014, 01:20 AM   #13 (permalink)
Registered Users
 
Posts: 2,646
 

Join Date: Mar 2008
Default

Wow, nice that the anti rotation bracket is JUST hidden inside the doghouse .
__________________
Regards.
Ian

Henseleit TDR, Minicopter. Mikado. Jeti Carbon Red DS16. Plus scale stuff
satsuma is offline        Reply With Quote Quick reply to this message
Old 07-11-2014, 10:48 AM   #14 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

Thanks. I worked out how much of the guide I actually needed at full mechanical travel (no radio on and just put all servos to max) and then cut off the rest. It never comes close to the end so there is enough material there to keep it in place. I did the same thing with my 500MD TOW Defender but the design of the bracket was different so I put a cap on it to keep it from spreading (I don't think there is a lot of force on those pins, imho. Take care.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-11-2014, 08:35 PM   #15 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

Today, I finished off the chassis installation to the point that I could have flown it if I was so inclined. There is just too much hinging on the paint to start assembling of the fin, horizontal stabs, and tail. The alignment pins in the canopy will be a tedious job and I am not sure if I can glue all five in at the same time or do one at a time. It's the three hours of cure time that could drag that out over two days, sigh. All wiring is ready for install and the LEDs are already set. The vertical tail rotating beacon is the best install of the three I have done (third time's the charm) and having done this three times, prepping everything was simple. The landing light is what is driving me nuts right now as I can't figure out which one to do. Making it is easy but I would hate to find out that the twin original lighting was only there for a short time and would be a better version to do. I am most likely going to take the weekend off of the build so I can try and get some flying in as next week is going to be devoted to my other hobby. Take care.

Don
Attached Thumbnails
Click image for larger version

Name:	Chassis Brace.jpg
Views:	345
Size:	51.9 KB
ID:	521451   Click image for larger version

Name:	Tail Pitch Level Installation 1.jpg
Views:	370
Size:	113.9 KB
ID:	521452   Click image for larger version

Name:	Tail Pitch Level Installation 2.jpg
Views:	347
Size:	119.1 KB
ID:	521453  
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-14-2014, 07:36 PM   #16 (permalink)
Registered Users
 

Join Date: Jan 2010
Default

Don,

Pretty neat works on the mounting..

Is the T/R right or left? couldn't tell from the pictures,
Your cut out hole for the T/R's end is also very nicely done just the right size..

Keep it up!


George
HeliKid is offline        Reply With Quote Quick reply to this message
Old 07-14-2014, 09:14 PM   #17 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

Thanks George:

The tail is on the right side of the boom unfortunately so it is not duplicating the full size. This is a semi-scale body with very little chance to get it scale. The doghouse seems to have been grafted on to a smaller body as there are too many spots not in proper alignment. so I am going to make a good show of it, add as much detail as I can, and see if I can get the riveting to look half decent. I have just done the hardest part of the build and that is putting in the alignment pins and wood pads. The hardest part is waiting for the Hysol to set so I can check that the canopy will come off, lol. Those pins are individually removable but once all five are in place, it could get interesting, lol. Pics to follow. Take care.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-15-2014, 08:06 PM   #18 (permalink)
Registered Users
 

Join Date: Jan 2010
Default

Don,

It looks like the Fun-key Bell Jetranger 550 is a downsized version of their 60/700 class.
everything looks similar except in their size. I am contemplating whether is possible
to modify few areas to make it more 'scale-like'.. the tail end looks wrong & on wrong side.
What makes you think the doghouse is oversize and was 'grafted' with spots?

I may consider getting their 60 JR to see if i can rework the fuse a bit scale....


Best,
George
HeliKid is offline        Reply With Quote Quick reply to this message
Old 07-15-2014, 11:19 PM   #19 (permalink)
HF Scale Support
 
Posts: 3,564
Thread Starter Thread Starter
 

Join Date: Jan 2010
Default

George:

The 700 size is a bit different than the two others in the line. It can have the tail rotor switched to the correct side while you are building it. The 600 is a bit better proportioned than the 550 size but the tail is still on the wrong side of the helicopter and requires work to redo it for the left side. Please take into account that there is exactly one single manufacturer of switched tail pitch levers for the T-Rex and other mechanics. Only a few have the option of either side and those are mostly large mechanics for 1.6 to 2.5m helicopters. There is little point in making bodies with the tail rotor on the correct side if a vast majority of the mechanics are set for right side tail rotors.

The doghouse on the 550 is oversized and there and there are a few other compromises made to have it work with the 550/30 size mechanics. The fuel inlet is too far back from the door, the upper windows are too narrow and a bit long, the area between the plenum intake and the motor cover door, is too wide, and the shape of the doghouse portion of the canopy is not correctly shaped. If about a half inch was cut right out of the entire body just behind the rear door, it would be a bit better and then the upper doghouse would need to be shortened an additional half inch. BUT, it makes for one very nice model when done with a bit of detailing like I am in the midst of doing. Once you have those little bits added here and there, attention is put on what you have done with the model and how realistic it begins to look.

There are no perfect scale bodies out there on the commercial market as all of them have alterations done to the body so that it will work with our mechanics; It everything was perfect scale, there would be very few models smaller than 1/4 scale. Until some manufacturer steps up to the plate to offer left and right side tail rotors, most of your smaller scale bodies will have their tail rotors on the ride side of the body, right or wrong. Because I cannot find a source o scale blades, 600 size, set for counter-clockwise rotation, my 500 will remain as it is. The flipped tail does have its foibles but it looks correct and the 5 blade head masks the direction from a short distance away. Only the AS350 is good to go for tail and main rotor directions and positions. Hope this explains a bit of what I mean.

Don
Keyrigger is offline        Reply With Quote Quick reply to this message
Old 07-16-2014, 06:09 AM   #20 (permalink)
Registered Users
 

Join Date: Jan 2010
Default

Hi Don,

Agreed what is mostly said here...even the 600 size has the wrong cockpit windows.
The tail end is wrongly shaped in all sizes(too bulbous)..but it can be flipped either L/R rotation.

I will try attempt to rework a bit on the 700 size Funkey Bell JR fuselage if i manage
to acquire one with a good deal.

Anyway good luck to your JR 550.

Cheers,
George
HeliKid is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1