Go Back  RCU Forums > RC Airplanes > Kit Building
Reload this Page >

Wolff-Pak "Thrush"

Notices
Kit Building If you're building a kit and have questions or want to discuss kit building post it here.

Wolff-Pak "Thrush"

Old 02-28-2017, 09:31 AM
  #1  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default Wolff-Pak "Thrush"

I purchased this kit at a AMA swap meet for $10. It's a attic find that was open and missing a few parts, but nothing that can't be replaced. I started the build a couple of weeks ago, and I will post some pictures in the next couple days. Update: In case anyone wants to see what you get with the kit, this is what you get instead of plans: .
Attached Thumbnails Click image for larger version

Name:	16711543_1469492359778273_8470347333851831624_n.jpg
Views:	298
Size:	137.9 KB
ID:	2203394   Click image for larger version

Name:	17202900_1520652474662261_351622378238970364_n.jpg
Views:	200
Size:	60.2 KB
ID:	2205116   Click image for larger version

Name:	17264273_1520687584658750_5669205650473597726_n.jpg
Views:	212
Size:	63.9 KB
ID:	2205117   Click image for larger version

Name:	17203234_1520687341325441_3644151780050913105_n.jpg
Views:	193
Size:	44.3 KB
ID:	2205118   Click image for larger version

Name:	17309486_1520687061325469_4708368002977195916_n.jpg
Views:	200
Size:	82.4 KB
ID:	2205119  

Last edited by rkenney; 03-12-2017 at 04:01 PM.
Old 02-28-2017, 11:46 AM
  #2  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Wings...
Attached Thumbnails Click image for larger version

Name:	16998053_1495260503868125_5206727384695973558_n.jpg
Views:	199
Size:	83.7 KB
ID:	2203407   Click image for larger version

Name:	17039198_1495261507201358_1749999645237900193_o.jpg
Views:	194
Size:	165.3 KB
ID:	2203408  
Old 02-28-2017, 11:51 AM
  #3  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Side note, picked up this OS 46LA for $10, and thinking about putting it in the Thrush. Bench test found a problem with the valve assembly, $21 dollars later the part is on its way. Update: received the valve assembly and the 46LA is purring much better. Did notice fuel bubbling from the head, so have a new head gasket on order. $6 more to the price of the $10 engine. $37 still not a bad price for it.
Attached Thumbnails Click image for larger version

Name:	16992210_1495259083868267_2272744689272743381_o.jpg
Views:	218
Size:	118.5 KB
ID:	2203409   Click image for larger version

Name:	17097499_1495258650534977_3659859185811593842_o.jpg
Views:	210
Size:	118.4 KB
ID:	2203410   Click image for larger version

Name:	17038792_1495259283868247_1191586449082860560_o.jpg
Views:	218
Size:	124.2 KB
ID:	2203411  

Last edited by rkenney; 03-10-2017 at 04:43 AM.
Old 02-28-2017, 09:30 PM
  #4  
tailskid
My Feedback: (34)
 
tailskid's Avatar
 
Join Date: Nov 2001
Location: Tolleson, AZ
Posts: 9,551
Received 7 Likes on 7 Posts
Default

You will love the way she flies!
Old 03-01-2017, 03:36 AM
  #5  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Fuselage pictures update.
Attached Thumbnails Click image for larger version

Name:	16904940_1496317773762398_4394070732736437989_o.jpg
Views:	209
Size:	158.6 KB
ID:	2203502   Click image for larger version

Name:	16992481_1496317650429077_8973912177113742958_o.jpg
Views:	200
Size:	151.3 KB
ID:	2203503   Click image for larger version

Name:	17021472_1496317510429091_231654199005513574_n.jpg
Views:	219
Size:	78.6 KB
ID:	2203504   Click image for larger version

Name:	17021841_1496317873762388_1498221656513992014_n.jpg
Views:	196
Size:	75.5 KB
ID:	2203505  
Old 03-01-2017, 04:20 AM
  #6  
2 Piece
My Feedback: (8)
 
Join Date: Feb 2002
Location: Winchester, VA
Posts: 325
Likes: 0
Received 1 Like on 1 Post
Default

yeap, good plane and easy build. loved the one I had 27 years ago. might want to make sure the balsa is not too dried out.
Old 03-01-2017, 06:40 AM
  #7  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

The balsa is aged, but still has good flexibility to it. on the 3rd fuselage picture you can see the color difference between the old and new wood.
Old 03-01-2017, 04:55 PM
  #8  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Here is my new flight box, (bottles are 1000ml Nalgene chemical bottles for fuel). fuel pump is mounted to cover and works like a charm!
Attached Thumbnails Click image for larger version

Name:	17021652_1497313493662826_9215439891100040985_n.jpg
Views:	195
Size:	53.3 KB
ID:	2203579   Click image for larger version

Name:	16998906_1497313753662800_4897303967445744215_n.jpg
Views:	196
Size:	43.1 KB
ID:	2203580   Click image for larger version

Name:	16938777_1497309036996605_2683024582684382129_n.jpg
Views:	222
Size:	79.9 KB
ID:	2203581  
Old 03-05-2017, 04:59 AM
  #9  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Wings joined, side note new LED light for bench
Attached Thumbnails Click image for larger version

Name:	17156170_1503507449710097_7072219494201224187_n.jpg
Views:	188
Size:	48.8 KB
ID:	2204006   Click image for larger version

Name:	17158910_1503507283043447_108157370809715129_o.jpg
Views:	200
Size:	168.5 KB
ID:	2204007  
Old 03-05-2017, 03:01 PM
  #10  
A. J. Clark
 
A. J. Clark's Avatar
 
Join Date: Mar 2004
Location: Craigville, IN
Posts: 606
Received 15 Likes on 14 Posts
Default

You will like thrush easy to build and a good flyer . I have one now that I've been flying for the last two or three years. Purchased 4 to 5 shrikes and the one thrush in the early 80s . All the shrikes are gone . The thrust I have an os 35 on it . Flys well with the 35.
Old 03-05-2017, 03:24 PM
  #11  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

A.J. Clark, I would really like to see some pictures of your Thrush. The only one I could find is the one on the box... Google search only finds the Strike.
Old 03-06-2017, 09:36 AM
  #12  
A. J. Clark
 
A. J. Clark's Avatar
 
Join Date: Mar 2004
Location: Craigville, IN
Posts: 606
Received 15 Likes on 14 Posts
Default

I only have my phone for internet use. I've never figured out how to put pictures up. If I new how I would be glad to do it. The picture on the box is pretty true to what it looks like. One thing I did was dye the canopy . I though it added a nice touch to it. I dye it red but it came out alot lighter than I wanted looks more orange than red but I was still happy with it.
Old 03-06-2017, 10:29 AM
  #13  
A. J. Clark
 
A. J. Clark's Avatar
 
Join Date: Mar 2004
Location: Craigville, IN
Posts: 606
Received 15 Likes on 14 Posts
Default

I believe that the joint between the vertical and horizontal stabs is a butt joint . It would be wise add some reinforcement .
Old 03-07-2017, 08:21 AM
  #14  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

A.J. Clark, I noticed that and was planning on putting 3/8" angle stock along the edges for reinforcement. The other thing I was looking at was the picture has a well rounded fuselage. With the angle stock they give, this is going to end up a very boxy airplane.
Old 03-07-2017, 09:15 AM
  #15  
mgnostic
 
mgnostic's Avatar
 
Join Date: Jan 2003
Location: Kamay, TX
Posts: 1,234
Received 19 Likes on 18 Posts
Default

There is probably a sanding block in your future if you want the rounded fuselage. On the upside you can get rid of a lot of weight behind the wing.
Old 03-09-2017, 05:46 AM
  #16  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

mgnostic, that is what I am looking for pictures of other peoples Thrush's. The kit has 3/8" angle placed along the inner corners of the fuselage, and with heavy sanding into those angle pieces still wont give the profile of the boxes picture. I am concerned with taking off to much and compromising the structure, so at this point I have just sanded off a 1/4" round along the edge.
Old 03-12-2017, 03:53 PM
  #17  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

This weekend's work... Side note: When you order a motor mount for and OS 40-46LA that is made by OS, just expect it not to fit, thus the spitting of the mount in picture 3.
Attached Thumbnails Click image for larger version

Name:	17159313_1520653577995484_7679455155947578582_o.jpg
Views:	174
Size:	119.0 KB
ID:	2205109   Click image for larger version

Name:	17309992_1520652251328950_5327761022924162112_o.jpg
Views:	184
Size:	173.4 KB
ID:	2205110   Click image for larger version

Name:	17265147_1520652961328879_4543550524082554481_n.jpg
Views:	179
Size:	78.8 KB
ID:	2205111   Click image for larger version

Name:	17203136_1520652687995573_7434949137963670167_n.jpg
Views:	180
Size:	97.5 KB
ID:	2205112   Click image for larger version

Name:	17191959_1520651814662327_2760097911604468703_o.jpg
Views:	194
Size:	173.6 KB
ID:	2205113   Click image for larger version

Name:	17212161_1520651597995682_1373741224022181165_o.jpg
Views:	178
Size:	178.3 KB
ID:	2205114   Click image for larger version

Name:	17218733_1520649987995843_5325443580777413476_o.jpg
Views:	174
Size:	164.8 KB
ID:	2205115  
Old 03-12-2017, 06:50 PM
  #18  
mgnostic
 
mgnostic's Avatar
 
Join Date: Jan 2003
Location: Kamay, TX
Posts: 1,234
Received 19 Likes on 18 Posts
Default

Originally Posted by rkenney View Post
mgnostic, that is what I am looking for pictures of other peoples Thrush's. The kit has 3/8" angle placed along the inner corners of the fuselage, and with heavy sanding into those angle pieces still wont give the profile of the boxes picture. I am concerned with taking off to much and compromising the structure, so at this point I have just sanded off a 1/4" round along the edge.
As long as the thriangle stock is of decent quality and you leave enough wood to tie the top and bottom to the sides you can sand pretty deeply into the triangle stock. I've had models, especially smaller ones where that was the only way to achieve a rounded fuselage profile. Along with that I will say that it wouldn't be the first time the product didn't quite match the box and as long as it is symmetrical and the airplane balances it will probably fly as good as one with the shape shown on the box. Just as shown on the box you can also use long tapering accent lines to make the fuselage look longer and slimmer.
Old 03-13-2017, 08:14 AM
  #19  
A. J. Clark
 
A. J. Clark's Avatar
 
Join Date: Mar 2004
Location: Craigville, IN
Posts: 606
Received 15 Likes on 14 Posts
Default

Looks like things are going together good for you. I looked at mine again . I just rounded edge. I didn't try to make the hole fuse round . I was a little concern about to much sanding on the edges.
Old 03-16-2017, 05:18 AM
  #20  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Wing ready for covering, fuselage covering has started! For anyone following this thread, I started another one for a GLA Great Little Airplane, that can be followed at http://www.rcuniverse.com/forum/kit-...l#post12316400
Attached Thumbnails Click image for larger version

Name:	17342609_1528257500568425_6414763859216955821_n.jpg
Views:	157
Size:	81.7 KB
ID:	2205516   Click image for larger version

Name:	17342672_1528257780568397_3729240676412073788_n.jpg
Views:	171
Size:	31.4 KB
ID:	2205517  

Last edited by rkenney; 03-16-2017 at 05:34 AM.
Old 03-16-2017, 05:34 AM
  #21  
Airacobra
 
Join Date: Jul 2002
Location: OH
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
Default

I built 2 of these back in a day. The first was powered by a Saito 45. Some would say it may have been a bit underpowered but I loved that plane. It was very docile on landing but was mildly aerobatic. Did everything I wanted it to do. The second one was powered by a Supertigre .40. Still not overpowered but again was a great plane. If I found a kit for $10 I would build a 3rd one. The OS 46 should be great and if you have a Saito 56 laying around that would be great as well. Look forward to seeing the completed model.
Old 03-16-2017, 07:18 AM
  #22  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 13,086
Received 111 Likes on 105 Posts
Default

Geat looking little airplane! I need to go to the swap meets you hit!
Old 03-16-2017, 05:20 PM
  #23  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

Sanding, sanding.... getting close...
Attached Thumbnails Click image for larger version

Name:	17342985_1530073493720159_170250181775651822_n.jpg
Views:	203
Size:	72.6 KB
ID:	2205606   Click image for larger version

Name:	17362466_1530073673720141_9176530480031323954_n.jpg
Views:	242
Size:	38.7 KB
ID:	2205607  
Old 03-17-2017, 07:00 AM
  #24  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 13,086
Received 111 Likes on 105 Posts
Default

The instructions are reminisent of the Ace R/C Simple Series except the had foam wings. Was there a sheet for the wings? You have done a beautiful job so far.
Old 03-17-2017, 08:05 AM
  #25  
rkenney
Junior Member
Thread Starter
 
rkenney's Avatar
 
Join Date: Feb 2017
Location: Virginia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Default

FlyerInOKC, thank you first of all. The kit only came with an instruction book: I wish that it had prints also, just in case I ever had to rebuild a wing or tail... I am going to try to have it ready for flight by the end of the weekend, then the next good weather day... !!!
Attached Images  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.