Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Vintage and old timer models
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Vintage and old timer models Discuss nostalgic vintage aircraft

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 11-11-2011, 09:18 PM   #1
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default Need help with 1/2 A electric FREE FLIGHT

Hi Guys

I would like to start building my 1/2 A electric (Brodak) pylon wing mount Playboy kit.The plane shows the motor line straight ahead and no down thrust .

Should I add down thrust and a few degrees of right into it ??

Thanks
Charlie
Patsy2Shoes is offline  
  Reply With Quote
Old 11-11-2011, 11:27 PM   #2
whitecrest
Member
 
whitecrest's Avatar
 
Join Date: Feb 2007
Location: Orleans, MA
Posts: 244
Thanked 24 Times in 24 Posts
iTrader: (0)
Friends: (0)
Default

I'd build it as shown by the plan. If you need down or right thrust later, it's easy to shim the motor a few degrees. You may not need any adjustments.

~Tim
whitecrest is offline  
  Reply With Quote
Old 11-23-2011, 03:13 AM   #3
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

hi Guys

Just thought I would bring you up to date with a few pics

Charlie


Attached Thumbnails
Click image for larger version

Name:	IMG_4030.jpg
Views:	114
Size:	112.4 KB
ID:	155057   Click image for larger version

Name:	IMG_4031.jpg
Views:	123
Size:	136.0 KB
ID:	155058   Click image for larger version

Name:	IMG_4032.jpg
Views:	123
Size:	130.0 KB
ID:	155059   Click image for larger version

Name:	IMG_4034.jpg
Views:	131
Size:	109.3 KB
ID:	155060  
Patsy2Shoes is offline  
  Reply With Quote
Old 11-25-2011, 01:55 AM   #4
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

I'd side with whitecrest. No need to build in something you might not need later. Just complicates things.

BTW it looks good so far!
aeronca52 is offline  
  Reply With Quote
Old 12-08-2011, 07:44 PM   #5
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

Hi Guys

I would like to post a few pictures of the build so far.

Charlie


Attached Thumbnails
Click image for larger version

Name:	001.jpg
Views:	117
Size:	168.9 KB
ID:	155424   Click image for larger version

Name:	004.jpg
Views:	116
Size:	135.9 KB
ID:	155425   Click image for larger version

Name:	006.jpg
Views:	118
Size:	162.3 KB
ID:	155426   Click image for larger version

Name:	012.jpg
Views:	111
Size:	80.5 KB
ID:	155427   Click image for larger version

Name:	011.jpg
Views:	111
Size:	77.9 KB
ID:	155428  

Patsy2Shoes is offline  
  Reply With Quote
Old 12-08-2011, 08:11 PM   #6
rcers
Community Moderator
 
rcers's Avatar
 
Join Date: Jul 2005
Location: Trophy Club TX
Posts: 6,241
View rcers's Gallery57
Thanked 507 Times in 497 Posts
Awards Showcase

WAA-08 Pilot 
iTrader: (4)
Friends: (9)
Default

Excellent work - looks very nice in the bones...
rcers is offline  
  Reply With Quote
Old 12-09-2011, 02:48 AM   #7
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Lookin good! You're gonna love it.
Be sure to install a tail skid to keep the elevators off the ground. Avoid a wheel, too much weight too far back.
aeronca52 is offline  
  Reply With Quote
Old 12-10-2011, 04:34 AM   #8
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Thanks for the pics Charlie. It sure looks good.
Sparked my memory, so I took a look and sure enough I have a Leisure Models Playboy in the box downstairs. Also found a Leisure Models Eaglet.
The Playboy is cool with the pylon mount. Talk about a floater, it should be. Lawnchair flyin'

Bill
Dragonflyer is offline  
  Reply With Quote
Old 12-21-2011, 02:02 AM   #9
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

Hi Guys

Just about finished .I will wait for some calm day to maiden it .

Charlie


Attached Thumbnails
Click image for larger version

Name:	003 (2).jpg
Views:	113
Size:	156.0 KB
ID:	155663   Click image for larger version

Name:	004 (2).jpg
Views:	114
Size:	145.8 KB
ID:	155664   Click image for larger version

Name:	006 (2).jpg
Views:	106
Size:	138.6 KB
ID:	155665   Click image for larger version

Name:	007 (2).jpg
Views:	112
Size:	162.4 KB
ID:	155666  
Patsy2Shoes is offline  
  Reply With Quote
Old 12-21-2011, 02:05 AM   #10
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Whoa, that is definitely a keeper. You're gonna like the way it flies. Nice job.
aeronca52 is offline  
  Reply With Quote
Old 12-21-2011, 06:45 AM   #11
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

That is beautiful Charlie.
Now go buy one of those lawn chairs that has the foot rest.
Great job man.

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 12:48 AM   #12
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

Hi Guys

I had the maiden flight today all went well considering it is a little tail heavy. I will have to work on that ..

I was thinking of moving the wing further back by changing the shap of the pylon .Any body have any ideas how that would work ?

Charlie
Patsy2Shoes is offline  
  Reply With Quote
Old 01-12-2012, 01:08 AM   #13
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

What does it take to balance ? Can you move battery forward any ?
That is a big wing and to add an ounce or two up front should not hurt.
I wouldn't do anything with the pylon. Is that a flat bottom wing where it could be scooted back a 1/4 inch or so ? Then keyed so it stays put.
JMA
Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 02:44 AM   #14
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

Hi Dragon

I balancd the model according to the prints . I moved the battery out of the fuse and mounted it on the bottom as far forward as possible .I used a larger battery as well .The original called for was a 2 cell 750 MAH , to increase the weight I used a 3 cell 610 MAH.

I also added 3/4 ounces of temporary stick on lead weight to the outside as far forward as possible .

The wing is undercambered and has a definate shape and cannot be moved back easily.It fits in a definate groove.

Thanks
Charlie
Patsy2Shoes is offline  
  Reply With Quote
Old 01-12-2012, 03:35 AM   #15
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Charlie,
Just to clarify, its does balance at the point specified on the plans ? If so why do you think it is tailheavy ?

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 03:41 AM   #16
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Charlie,
I went back and re-read your post where you said "no down thrust". That may be part of your problem. I think it should have 4 to 5 degrees. With that high lift wing it is going to want to climb under power with no down thrust. JMO

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 03:47 AM   #17
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Dragon, I have 3 r/c Playboys and just checked and none have down thrust. Don't forget the faster you fly the more the lifting stab will want to lift up and put the nose down. But that's just me.
aeronca52 is offline  
  Reply With Quote
Old 01-12-2012, 04:08 AM   #18
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

I didn't know it had an airfoiled stab. That's inherent of the old free flight designs. We need to here more from Charlie. You can probably help him more than I as you have this very airplane.
I have time in a '46 Aeronca Chief.

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 04:21 AM   #19
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Originally Posted by Dragonflyer View Post
I didn't know it had an airfoiled stab. That's inherent of the old free flight designs. We need to here more from Charlie. You can probably help him more than I as you have this very airplane.
I have time in a '46 Aeronca Chief.

Bill
Neat of you to mention your time in the Chief. My brothers and I owned a '46 7AC for 31 years and somewhere in there also had a '46 Chief for about 4years Champ-N1561E Chief-N3496E
Yes, the Playboy had a lifting stab just like a lot of oldtimers (models). Makes trimming a little more thought provoking.
aeronca52 is offline  
  Reply With Quote
Old 01-12-2012, 06:34 AM   #20
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Owned a 152, Citabria, Cessna 180, built an Acro Sport II. Learned to fly in the 152, towed banners with the Citabria, hauled Skydivers with the 180, had fun in the bipe. Straight up, straight down, right side up, upside down.
Built models in the 50's, RC in the 70's, full scale in the 80's & 90's, back to models in the 2000's. Just doesn't get old....

Hey Charlie, how did the first flight go ? Details...

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 07:03 PM   #21
Patsy2Shoes
Member
 
Patsy2Shoes's Avatar
 
Join Date: Dec 2008
Location: Malverne NY
Posts: 38
Thanked 7 Times in 5 Posts
Club: Meroke RC club (Long Island NY)
iTrader: (0)
Friends: (0)
Default

Hi Guys

I am under the opinion that It flys tail heavy because when I lower the throttle to zero instead of a glide I just get a porpousing action (mild) .Other times it will just hang against the breeze at a nose up angle and seem to not even move .It will not glide unless I add considerable down elevator.
Thanks
Charlie
Patsy2Shoes is offline  
  Reply With Quote
Old 01-12-2012, 08:47 PM   #22
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Charlie, if it needs down elevator to penetrate the wind try a 1/16 shim under the front of the stab. This is the same as adding down elevator. You could also add a little weight to the nose, maybe a fender washer behind the prop on the motor shaft. Down thrust will help while under power but if your incidence settings are off then it will show up in a poor glide.

When adding weight is is best to add as little as possible to get the job done. Naturally the further front it is added the less overall you will need. Like moving 2 boys in and out on a see-saw. If you can move the motor forward about 1/4 to 1/2 inch this will make a big difference. Click this link and scroll down to see how this modeler moved his motor forward about 2". http://www.headsuprc.com/servlet/the...lectric/Detail

That's a little extreme for your Playboy but that's the idea. BTW that is Heads Up r/c's site and they do sell those motor extensions ( I believe they call them standoffs) and they only charge $2 shipping or something like that. And I am not related to them, just trying to help out.

I know a lot of folks on different forums stress light weight in a model. That's fine if you're only flying inside, but outside you need a little heavier model to penetrate the wind. Just as full size sailplanes use water ballast to penetrate for cross country flying. As silly as it sounds my oldtimers with their heavier nicad batteries fly great. Lighten then up and the wind starts blowing them around. Imagine trying to fly a feather in high wind. My Dad once had a flying buddy who built a 78" sailplane so light he couldn't fly it in any kind of wind. It just would blow downwind.

To reiterate, a heavier model will fly better in windier weather. Keep us informed how things go. Once trimmed out you will get great flights with the Playboy.
aeronca52 is offline  
  Reply With Quote
Old 01-12-2012, 08:51 PM   #23
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Charlie,
I just went to look at the plans for my Playboy. Here is where the CG is on my plans.
From the leading edge of the pylon - 4 3/8"
From the firewall - 6 1/2"
Had not looked at the kit for some time. All of the parts are cut out. No diecut sheets.
I have left the box set out..... It is now third on the list of builds this winter.
Finish the Daddy-O, Gyrocopter, then the Playboy.

Too Much Fun
Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 08:55 PM   #24
Dragonflyer
Member
 
Join Date: Nov 2011
Location: NW Ohio
Posts: 98
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

You are right on Aeronca52. Good advice.
Get the glide, everything else will fall into place.

Bill
Dragonflyer is offline  
  Reply With Quote
Old 01-12-2012, 09:40 PM   #25
aeronca52
Member
 
Join Date: Aug 2007
Location: eastern Pa
Posts: 86
Thanked 3 Times in 3 Posts
iTrader: (0)
Friends: (0)
Default

Thanks Bill. You said it all in just one sentence. Took me 4.

I just went out and weighed my better flying PB out of the 3. With a 6 cell 1800 mah nicad battery it balances at 4" behind the leading edge. But, note, my firewall is 2 1/4 inches ahead of the top (front most) of the pylon. I added a short fuselage 'bay' ahead of the plans firewall to extend my firewall for balance reasons.

The other PB I have is balanced a little further back to help thermal. It is squirrelly and not relaxing to fly.

The 3rd one is up in the rafters.

Hope this helps, Charlie.
aeronca52 is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Vintage and old timer models

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
B-47 9th Scale, Boeing Stratojet...In The Middle Flite-Metal Electric Ducted Fan Jets 265 11-10-2014 07:46 PM
Everything You Wanted To Know About Electric Powered Flight AEAJR General Electric Discussions 269 06-27-2014 02:06 PM
Need info ,I would like to try 1/2 A electric Texico Patsy2Shoes Vintage and old timer models 15 09-12-2012 04:05 PM
Anyone interested in a Longest Flight Contest? AEAJR Hi-Performance and Sailplanes 26 07-23-2011 04:27 AM
T-bird free flight conversion F7U Scratch and Kit Built Aircraft 5 03-29-2011 07:18 AM


All times are GMT +1. The time now is 07:41 PM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 1.15136 seconds with 82 queries