Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
July-2017
Mark Boesen's

Nice original Babe Bee from a Super Cub 105, late fifties.



PAST WINNERS
CEF Traveling Engine

Tach Race 2017 Updates
Ready for Tach Race 2017?
Profile Scale Reed Speed
Gallery


Win This Engine!
The Traveling Prop
World of Aviation

Nakajima B5N 'Kate'

Page 2 of 3 Previous  1, 2, 3  Next

View previous topic View next topic Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Wed Dec 30, 2015 7:01 pm

Thanks for the input, guys! I hope the methods shown make sense so that anybody interested will be inclined to try. I'm gonna have to digest the different Cox engine parts. I am really ignorant of that stuff. Happy New Year
avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sat Jan 02, 2016 9:14 am

The fuse is complete. Just needs wing saddles, planking for lead out pass throughs and balsa re-enforcement around the nose. It also has the 'out-thrust' sanded so the FW can get installed. I changed the tail cone and made it more balsa block than stringer. It was getting to be a little 'spindly' back there even though block increases tail weight. I wanted solid mounting for tail feathers. The push rod runs through a channel in the tail cone but I don't think it shows well in photos. I'm going with a vertically oriented engine. Pic shows out thrust. I love looking at structures!





avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  fit90 on Sat Jan 02, 2016 9:16 am

Beautiful work. I can't wait to see how it all turns out. Thank you for sharing your work with us.
avatar
fit90
Platinum Member
Platinum Member

Posts : 1120
Join date : 2011-08-11
Location : Naples, Florida

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  rsv1cox on Sat Jan 02, 2016 9:52 am

Very nice. What are you using for assembly, CA?

Bob
avatar
rsv1cox
Diamond Member
Diamond Member

Posts : 2236
Join date : 2014-08-18
Location : West Virginia

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  getback on Sat Jan 02, 2016 11:36 am

Man that looks GREAT!! I would like to build a framed fuse but am afraid I would never get done with it lol I had to go back and check how long it was it looks small compared to those floor slats , at a little over 16" that is larger than I thought it was but still pretty small, good fun ARUP , getback Very Happy
avatar
getback
Top Poster
Top Poster

Posts : 4062
Join date : 2013-01-18
Age : 59
Location : julian, n.c.

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sat Jan 02, 2016 12:04 pm

Thank you all for your very nice compliments! They are a driving force for me. The whole idea of this hobby is for fun with others! Lots of folks successfully use CA for these little stick built airplanes but, to me, it's too heavy, causes runny nose (allergy) and doesn't sand very well. I use good 'ol' yeller' wood glue (PVA) and for parts that will have laminations that will show exteriorly... Ambroid (I have a large supply safely tucked away),Duco or Sigment works very well.

Right now I'm working on a 'plunge plug' for the canopy. I've only done this a few times so am not very good at it. Stay tuned! Babe Bee .049
avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Sat Jan 02, 2016 12:57 pm

That looks great. can't wait to se it finished
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  cox24711 on Sat Jan 02, 2016 3:43 pm

your work is great way better than mine! lol!
avatar
cox24711
Platinum Member
Platinum Member

Posts : 720
Join date : 2014-01-18
Age : 14
Location : Noosa Queensland Australia

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sun Jan 03, 2016 4:53 pm

akjgardner and cox24711, slowly but surely! Thanks for replies, too! You know what they say ... practice makes perfect or is it that practice makes for a dull boy? I'm pretty dull! Laughing
Got the saddles, LE and nose re-enforcing sheeting glued and all of it sanded. Gotta figure how and where canopy sits then make one. I didn't get as much done today as desired but that's usually what happens!

avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Sun Jan 03, 2016 5:01 pm

Hey, That looks awesome, What size balsa did you use for the formers and stringers ?
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Tue Jan 05, 2016 9:55 pm

akjgardner, the balsa started as 1/16" sheet then sanded before use. It might approach 1/20" after that. It is fairly lightweight stock for the most part. I used 'medium' density for the upper, lower and side keels. All the stringers were hand cut using a straight edge. The small blocks to make nose rings and tail cone were very light stock scraps. This work is very 'therapeutic' ... yeah... therapeutic! Some might think... boring! Smile I have started roughing in the canopy plug. It's going to be a sticky 'illusion' to pull off the canopy. By design, due to the nesting of the portions of the canopy on the full scale, a natural tapering occurs toward the rear. I want the canopy to be one piece for structural reasons. It would be a little bit of a trick to carve it in steps accurately. I might make the plug 'skinny' then add card stock progressively toward the front in order to create that taper. The card stock edges would have their edges at the scale joins for each portion of the canopy. Hope that makes sense. Canopies are always a bit of a road block for me. I might do better with a can-of-corn! tongue

avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sun Jan 10, 2016 3:55 pm

After a few false starts using a heat gun the canopy was plunge formed over the plug. The vivak was clamped to a lite ply plate. The cutout in the plate allowed ~1/8 clearance. The vivak on plate held near an 'electric fire' space heater until the plastic started to smoke! Then it was immediately 'plunged' over the plug which was elevated off the workbench for clearance. The second attempt got this canopy! Weeeeeeeee!





The plug was finished with black dope and sanded... a lot! I had to let the dope cure a few days. I'm gonna cut the canopy and offer it to fuse to see where more balsa has to be added to fuse structure in order to mount the canopy. I feel like I'm talking in circles here! Babe Bee .049
avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  Marleysky on Sun Jan 10, 2016 4:05 pm

Really nice canopy. Looks quick and easy, but I know it's a project all by itself. I watched a U-tube video where the guy uses a homemade box with a shop vac attached and vacuum forms over carved blocks. It a sign of a true model maker, one who'll  take the time and effort to make such fine accessories.
avatar
Marleysky
Diamond Member
Diamond Member

I Support My Forum

Posts : 1207
Join date : 2014-09-28
Age : 64
Location : Grand Rapids, MI

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Sun Jan 10, 2016 4:17 pm

Nice looking canopy. you do really fine work
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Thu Jan 14, 2016 7:24 am

Thanks guys! I have a vacuum former but I need to make an adapter for the plenum table to receive smaller sheets of plastic. Otherwise a lot of plastic would get wasted making these little parts! This canopy was a little bugger only because I didn't heat it enough the first time and the lite ply plate with cut out to which the vivak plastic was clamped was a little to small to hold while plunging the plug. My fingers started getting pretty toasty holding it next to the 'fire'!

Here's a little more progress. The canopy was cut, trimmed more then its edges sanded fair to fit on the fuse. The fuse has more sheeting in place to see where canopy edges will be located so that the cockpit opening may be cut. It's a major hurdle as far as this model is concerned! I'm thinking of using strips of paper doped silver to represent the canopy framing. Another option is to pull a white styrene canopy and cutting the windows out leaving the framework. More fiddly but a stronger and better result if done carefully.



avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  Mike1484 on Fri Jan 15, 2016 8:19 am

You are an inspiration to all of us stick and tissue builders . Nothing more fun than scratching out your own planes .

Mike1484
avatar
Mike1484
Bronze Member
Bronze Member

Posts : 54
Join date : 2011-10-28
Location : Northern Ohio

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  getback on Fri Jan 15, 2016 9:24 am

NICE !! This is the only stick build that I can recall in the 3 years I have been on and is really a learning experience and I think you for that . This Site Rocks! Your skills are extraordinary Thanks for sharing , Eric Very Happy
avatar
getback
Top Poster
Top Poster

Posts : 4062
Join date : 2013-01-18
Age : 59
Location : julian, n.c.

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Fri Jan 15, 2016 9:29 am

You got me useing ambroid again .lol
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sun Jan 17, 2016 10:02 am

getback, don't forget akjgardner's P-40 in off topic forum! I pulled a white styrene 'cowl' this morning so will start fretting out the framework for the windows today. When that is done some pics will get posted. The fuselage has been opened up to receive the canopy. I'll use my Maru Mechanic book published in Japan to try a develop a partial cockpit for it. Gotta do that stuff before closing it up!

akjgardner, I love Ambroid! That is the best glue. DUCO and Sigment come close. Sigment seems a little harder to sand than DUCO.
avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Sun Jan 17, 2016 10:08 pm

A paper pattern was traced around the canopy when trial fitted to fuselage. It was used to mark where to cut out cockpit 'office' area. Here's the styrene canopy framing. After measuring and pencil-ing the framework blue vinyl mask tape used to guide sawing. Eight holes cut. Thirteen to go!





avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  RK Flyer on Sun Jan 17, 2016 11:08 pm

akjgardner wrote:You got me useing ambroid again .lol


I've been holding my last tube of Ambroid for the last couple of years, where do you buy it???

Thanks, RK Flyer Flying
avatar
RK Flyer
Gold Member
Gold Member

Posts : 249
Join date : 2013-07-16
Location : Somerset, Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  pkrankow on Sun Jan 17, 2016 11:10 pm

I wish I looked in more. Wow, you are moving along on that.

I have patience to work on detail, but that is a whole different level.

Phil
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2859
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Mon Jan 18, 2016 5:27 am

RK Flyer wrote:
akjgardner wrote:You got me useing ambroid again .lol


I've been holding my last tube of Ambroid for the last couple of years, where do you buy it???

Thanks, RK Flyer  Flying
RK, If you ever drive up 74 in Indiana past Batesville, the hobby shop there sells it
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  ARUP on Mon Jan 18, 2016 6:41 pm

Hey RK... I sent you a PM. Sorry it took me so long to see yours. I'll use the ol' new to the forum excuse! Laughing
pkrankow- yessir... just patience. That's what keeps me goin'!
akjgardner- is Ambroid still manufactured? I cornered the market for a large supply. I love it! Plus at the end of a hobby gluing session I get to chew the excess off my fingers!

Here's a pic of the framework. It's a little 'heavy' from a structural mimicking standpoint but I'll use this excuse... it looks like the toys you buy... you know how they are built kinda thick and all! I also show a pic of cutout in fuselage.









On to the flying surfaces!
avatar
ARUP
Gold Member
Gold Member

I Support My Forum

Posts : 179
Join date : 2015-09-13
Location : Kentucky

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  akjgardner on Mon Jan 18, 2016 7:00 pm

Hey Arup, That looks really really good . Last time I bought Ambroid was about 3 years ago, I have seen it In a couple of places. I just assumed they still made it...Hope so, i'm running low
avatar
akjgardner
Platinum Member
Platinum Member

Posts : 672
Join date : 2014-12-28
Age : 57
Location : Milan Indiana

View user profile

Back to top Go down

Re: Nakajima B5N 'Kate'

Post  Sponsored content


Sponsored content


Back to top Go down

Page 2 of 3 Previous  1, 2, 3  Next

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum