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
August-2017
balogh's

Throttle-Dees



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

Ken Willard 'Page Boy'

View previous topic View next topic Go down

Ken Willard 'Page Boy'

Post  Kim on Tue Apr 05, 2016 9:28 pm

Don't know if I've posted this Ken Willard article/design before, but thought I'd go ahead, since we've been talking about smaller, close-in flying models.

While it's intended for a Tee Dee .010, it's sheet construction could probably be easily enlarged to take an .020.



avatar
Kim
Top Poster
Top Poster

I Support My Forum

Posts : 5583
Join date : 2011-09-06
Location : South East Missouri

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  xplaneguy on Tue Apr 05, 2016 10:39 pm

Definitely, a bucket list build for me. Thanks Kim!
avatar
xplaneguy
Gold Member
Gold Member

Posts : 196
Join date : 2012-01-12
Age : 47
Location : Rosamond/Edwards AFB, CA

View user profile http://www.rcgroups.com/forums/member.php?u=263724

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  pkrankow on Wed Apr 06, 2016 8:11 am

It is a cool build.  I used 6 oz fiberglass since Celastic is pretty hard to get.  Lighter would have been better, but this little strip of thick fiberglass is not excessively heavy.    I should have used the SIG 1.5 oz glass tape.  I set in Testors wood and metal cement instead of epoxy which did prevent more unnecessary weight.

I built for electric  3 channel,  but found the rudder too small as drawn.  I added 3/8 inch to the rudder, and enlarged the elevator to 3/4 inch.  The original motor I chose was a .049 equivalent, which has way too much torque.  I am switching to a brushed motor from indoor flyers.  The 5g servos I chose are also pretty heavy after adding in 2s battery RX mounting ESC...  I managed to score a AR6400 RX (which has been superseded AS6410) but have not completed the change over to the new kit.  I will be saving a lot of weight with the changes.  I hope to be below 100g when done.  I have not tested the new configuration.  

This RX will also be able to use 1s lipo power, and can be powered by a tiny postage stamp size 100mah battery.  For glow power this will be a long flight time, since this is 5-20 minutes with DC micro electric.

I decorated with sharpie markers and applied clear polyurethane.  I feel my finish is fairly lightweight, but maybe not as light as possible.  2 coats of clear dope probably weighs in a few grams lighter.  

The 148g I ended up at is overweight for this model.  I expect to be closer to 80g when done refitting.  Club members who built these years ago told me that my version is very heavy.

https://www.coxengineforum.com/t9262-pageboy-in-electric?highlight=pageboy
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2869
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  balogh on Wed Apr 06, 2016 9:30 am

avatar
balogh
Diamond Member
Diamond Member

Posts : 1383
Join date : 2011-11-06
Age : 58
Location : Budapest, Hungary

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  pkrankow on Wed Apr 06, 2016 9:45 am

balogh wrote:https://www.coxengineforum.com/gallery/Personal-album-of-balogh/2011-11-19-1935411-pic_326.htm

Just to share my Gallery picture with this thread as well...

Any chance you can throw that on a scale and let me know what it weighs in at?

Phil
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2869
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  balogh on Wed Apr 06, 2016 10:22 am

Sure thing Phil just wait until I hit home

András
avatar
balogh
Diamond Member
Diamond Member

Posts : 1383
Join date : 2011-11-06
Age : 58
Location : Budapest, Hungary

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  balogh on Wed Apr 06, 2016 12:12 pm

[/quote]

Any chance you can throw that on a scale and let me know what it weighs in at?

Phil[/quote]

Phil,

here is my Pageboy a bit disembowelled, waiting for an overhaul on its fuse coverage. The assembly weighs around 193 grams, say, 6,8 oz with the following parts included:

1. Fuse and wing complete with elevator, rudder and pushrod mechanisms
2. TD010 with stock 3x1,25 prop
3. two Hitech nano servos
4. one microswitch harness with battery charging lead
5. a 330mAH NiMH battery
6. a Futaba receiver



I hope it helps.
avatar
balogh
Diamond Member
Diamond Member

Posts : 1383
Join date : 2011-11-06
Age : 58
Location : Budapest, Hungary

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  pkrankow on Wed Apr 06, 2016 12:53 pm

Well, that settles it. My problem was not due to weight. Balance maybe, I was having problems with keeping the nose up, and this should balance more like a free flight plane than anything else. I think I was having more problems from the large-ish rotating mass of the electric out-runner and too much prop. I did put a 5 inch prop on.

Phil
avatar
pkrankow
Diamond Member
Diamond Member

Posts : 2869
Join date : 2012-10-02
Location : Ohio

View user profile

Back to top Go down

Re: Ken Willard 'Page Boy'

Post  Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

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