Go Back  RCU Forums > RC Airplanes > Scratch Building, Aircraft Design, 3D/CAD
Reload this Page >

Scratchbuild a Curtiss Hawk III (BF2C-1) in 1/4.5

Notices
Scratch Building, Aircraft Design, 3D/CAD If you are starting/building a project from scratch or want to discuss design, CAD or even share 3D design images this is the place. Q&A's.

Scratchbuild a Curtiss Hawk III (BF2C-1) in 1/4.5

Old 03-29-2017, 12:48 PM
  #1  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default Scratchbuild a Curtiss Hawk III (BF2C-1) in 1/4.5

of course it is a milling maschine, not a drilling maschine

Last edited by thomasmuckus; 05-24-2017 at 01:01 PM.
Old 03-29-2017, 01:11 PM
  #2  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

desaster happens, after the attempt to edit the post all text was deleted. I will write it for new tomorrow, sorry
Old 03-29-2017, 11:37 PM
  #3  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Smile

second attempt:

After finish the Ryan I promised in the “SIG Ryan STA special kit by Maxy Hester” thread (post 277) (http://www.rcuniverse.com/forum/kit-...hester-12.html) about the beauty from jwharkinz to start my own thread about building the Curtiss Hawk.

Sorry for the poor English, I`m german. And this is the second reason for me to do this thread. I need to improve my English skills; especially grammar. There is an exam in the late summer…. So please feel free to dip my nose on every mistake, it would be helpful.
Why this aircraft? At first, I love biplanes. Than the challenge, a biplane with retractable gear. Many people started to build a model of this very interesting aircraft, last attempt here was this:

http://www.rcuniverse.com/forum/rc-w...ort-bf2c1.html in other forums is the same.
I believe the mayor problem is the retractable gear, this was also the second problem by the original aircraft, and it was to smooth. So I decided to start building with the gear otherwise, if this fails I would cancel the project too. And, at least, it is a biplane.
It started with this, a birthday present, the Hasegawa kit from the BF2C-1 and it was love at first sight.



Now something about the aircraft. The BF2C-1 is the aircraft with one of the shortest career in Navy service ever. Developed as a carrier-based fighter for the new carrier USS “Ranger” it started with any problems. The BF2C-1 was a with retractable gear upgraded F11-C, but, the natural vibration of the metal wing harmonised with the vibrations of the new engine, unfortunately at cruising speed. Curtiss found no other solution than to offer a replacement to wooden wings but this was for the Navy to expensive and Curtiss was out of the race for years.
With the wooden wing the aircraft was successful exported to China, Thailand and Argentina, the last one you can see in the museum of the Royal Thai Airforce in Bangkok.


At the beginning was the designing of the gear. It looks very simple; a retracting screw pulls the leg into the hull, done. Nuts, the hull was not high enough. I took me close to a year to find out the principle. After contacting the museum in Bangkok I got some real pics from the gear.


Actually I collected over 500 pics, drawings and a littel chinese video too. One of my buddy`s visited the museum and I got more pics, also from the interior



The small strut behind the leg compresses the shock-absorber and then it works. I`ve made a wooden model for this



The next was some soldering works


My wife pushes my motivation on Christmas 2015



While waiting for the custom made shock absorbers (http://www.hawe-modellbau.de/)
I`ve done the construction work for the fuselage, the wings and the tail. I use DevWing and DevFus, great tools. They are very easy to use and not so expensive than other software.


One of my buddy’s owns a CNC milling machine, the software outputs the fitting files and so I got the first parts


to be continoued........
Attached Thumbnails Click image for larger version

Name:	Hasegawa 1.jpg
Views:	3706
Size:	171.2 KB
ID:	2207642   Click image for larger version

Name:	Hawk Thai museum.jpg
Views:	3898
Size:	122.4 KB
ID:	2207643   Click image for larger version

Name:	Flugposition total entlastet.jpg
Views:	3542
Size:	164.9 KB
ID:	2207644   Click image for larger version

Name:	1.jpg
Views:	3683
Size:	193.9 KB
ID:	2207645   Click image for larger version

Name:	3.jpg
Views:	3826
Size:	170.6 KB
ID:	2207646   Click image for larger version

Name:	Fahrwerk 1.jpg
Views:	3578
Size:	159.1 KB
ID:	2207647   Click image for larger version

Name:	Fahrwerk 2.jpg
Views:	3526
Size:	151.2 KB
ID:	2207648   Click image for larger version

Name:	Fahrwerk 3.jpg
Views:	3573
Size:	153.9 KB
ID:	2207649  

Click image for larger version

Name:	Test Dreieckslenker.jpg
Views:	3333
Size:	51.4 KB
ID:	2207650   Click image for larger version

Name:	Dreieckslenker 1.jpg
Views:	3528
Size:	153.8 KB
ID:	2207651   Click image for larger version

Name:	Dreieckslenker 2.jpg
Views:	3488
Size:	150.9 KB
ID:	2207652   Click image for larger version

Name:	Dreieckslenker 3.jpg
Views:	3523
Size:	172.7 KB
ID:	2207653   Click image for larger version

Name:	Dreieckslenker 4.jpg
Views:	3403
Size:	147.1 KB
ID:	2207654   Click image for larger version

Name:	Dreieckslenker links.jpg
Views:	3456
Size:	153.0 KB
ID:	2207655   Click image for larger version

Name:	Motor-Test.jpg
Views:	3465
Size:	493.7 KB
ID:	2207656   Click image for larger version

Name:	DevWing Fläche unten.jpg
Views:	3428
Size:	185.6 KB
ID:	2207657  

Click image for larger version

Name:	DevWing Fläche oben 1.jpg
Views:	3505
Size:	197.2 KB
ID:	2207658   Click image for larger version

Name:	DevFus Gerüst 1.jpg
Views:	3817
Size:	162.4 KB
ID:	2207659   Click image for larger version

Name:	Höhenleitwerk 1.jpg
Views:	3322
Size:	121.5 KB
ID:	2207660   Click image for larger version

Name:	Seitenleitwerk 1.jpg
Views:	3300
Size:	107.5 KB
ID:	2207661   Click image for larger version

Name:	Julius 2.jpg
Views:	3427
Size:	75.5 KB
ID:	2207662  

Last edited by thomasmuckus; 07-06-2017 at 01:57 AM.
Old 03-29-2017, 11:42 PM
  #4  
ibuild
Senior Member
 
ibuild's Avatar
 
Join Date: Dec 2016
Location: Norway
Posts: 221
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Thomas, looks very impressive! I was interested in that metal work, I guess you are silver soldering those steel tubes, looks very nice.
Old 03-30-2017, 06:01 AM
  #5  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Yes, it is silver soldering, tin soldering seems to be not strong enough.
I finished the rudder and hope to post some pics soon....
Old 03-30-2017, 09:21 AM
  #6  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

for the next I printed some drawings, very easy to do with DevWing


The first parts I `ve done for the tail and the wings were the wingtips. With the help from some templates it was a very simple job.


I started with the Rudder. I always tryed to take over the original structure.


The complete rudder is lesser than 70 gramm (69,71) I`m very satisfied.

Here are the upper and lower wingjoiners. They are made from 2,5 mm five layered birch plywood, covered with carbonfiber. I made a little "mould" and pressed them with screw clambs


The boxes for the wingjoiner are made from thin sheet metal and tin soldered.

For now I work on the elevator.


The next few days I`m on vacation, I hope I contiue next week
Attached Thumbnails Click image for larger version

Name:	Baupläne.jpg
Views:	3830
Size:	146.1 KB
ID:	2207698   Click image for larger version

Name:	Randböge.jpg
Views:	3239
Size:	151.6 KB
ID:	2207699   Click image for larger version

Name:	Randbögen 2.jpg
Views:	3242
Size:	146.9 KB
ID:	2207700   Click image for larger version

Name:	Seitenleitwerk 11.jpg
Views:	3219
Size:	158.2 KB
ID:	2207701   Click image for larger version

Name:	Seitenleitwerk 10.jpg
Views:	3222
Size:	132.1 KB
ID:	2207702   Click image for larger version

Name:	Seitenleitwerk 9.jpg
Views:	3169
Size:	148.8 KB
ID:	2207703   Click image for larger version

Name:	Seitenleitwerk 8.jpg
Views:	3236
Size:	143.4 KB
ID:	2207704   Click image for larger version

Name:	Scharniere 2.jpg
Views:	3207
Size:	130.5 KB
ID:	2207705  

Click image for larger version

Name:	Scharniere 1.jpg
Views:	3200
Size:	149.0 KB
ID:	2207706   Click image for larger version

Name:	Seitenleitwerk 7.jpg
Views:	3224
Size:	139.3 KB
ID:	2207707   Click image for larger version

Name:	Seitenleitwerk 6.jpg
Views:	3339
Size:	174.9 KB
ID:	2207708   Click image for larger version

Name:	Seitenleitwerk 5.jpg
Views:	3221
Size:	152.4 KB
ID:	2207709   Click image for larger version

Name:	Seitenleitwerk 4.jpg
Views:	3225
Size:	169.2 KB
ID:	2207710   Click image for larger version

Name:	Seitenleitwerk 3.jpg
Views:	3228
Size:	154.0 KB
ID:	2207711   Click image for larger version

Name:	Seitenleitwerk 2.jpg
Views:	3211
Size:	97.0 KB
ID:	2207712   Click image for larger version

Name:	Zungen 1.jpg
Views:	3188
Size:	155.8 KB
ID:	2207715  

Click image for larger version

Name:	Zungen 2.jpg
Views:	3219
Size:	158.5 KB
ID:	2207716   Click image for larger version

Name:	Zungen 3.jpg
Views:	3288
Size:	190.1 KB
ID:	2207717   Click image for larger version

Name:	Zungen 4.jpg
Views:	3181
Size:	190.2 KB
ID:	2207718   Click image for larger version

Name:	Zungen 5.jpg
Views:	3184
Size:	148.8 KB
ID:	2207719   Click image for larger version

Name:	Höhenleitwerk 2.jpg
Views:	3139
Size:	91.5 KB
ID:	2207720   Click image for larger version

Name:	HLW 1.jpg
Views:	3286
Size:	181.1 KB
ID:	2207721   Click image for larger version

Name:	HLW 2.jpg
Views:	3308
Size:	172.9 KB
ID:	2207722   Click image for larger version

Name:	HLW3.jpg
Views:	3185
Size:	161.3 KB
ID:	2207723  

Click image for larger version

Name:	HLW 4.jpg
Views:	3180
Size:	120.8 KB
ID:	2207724   Click image for larger version

Name:	Stachelschwein.jpg
Views:	3249
Size:	181.5 KB
ID:	2207725   Click image for larger version

Name:	Randbogen 1.jpg
Views:	3125
Size:	107.8 KB
ID:	2207726   Click image for larger version

Name:	Randbogen 2.jpg
Views:	3161
Size:	97.7 KB
ID:	2207727   Click image for larger version

Name:	Höhenleitwerk 3.jpg
Views:	3128
Size:	161.1 KB
ID:	2207728   Click image for larger version

Name:	Höhenleitwerk 4.jpg
Views:	3129
Size:	162.6 KB
ID:	2207729   Click image for larger version

Name:	Leitwerksgruppe Curtiss.jpg
Views:	3289
Size:	195.7 KB
ID:	2207733  

Last edited by thomasmuckus; 03-30-2017 at 09:24 AM.
Old 03-30-2017, 09:53 AM
  #7  
BMatthews
 
BMatthews's Avatar
 
Join Date: Oct 2002
Location: Chilliwack, BC, CANADA
Posts: 12,425
Likes: 0
Received 22 Likes on 19 Posts
Default

I love the beautiful and lightweight structures you are using. This promises to be a great flying scale model.
Old 04-07-2017, 12:39 PM
  #8  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

o.k, I seperated the elevator yesterday. The hinges are also finished.



Today was a very good day,the first ribs for the center piece of the upper wing arrived and they looks great.



One of the challenges in buildig this aircratf is to stay below 12 kg. One rib with lightening holes has a wight of 7,5 g, for comparison a rib without holes > 17,5 g, 10 g, I save 10 g each, and there are 104 pieces, I safe a lot.

Attached Thumbnails Click image for larger version

Name:	Höhenleitwerk 5.jpg
Views:	3224
Size:	191.2 KB
ID:	2208787   Click image for larger version

Name:	Mittelstück 1.jpg
Views:	3087
Size:	138.3 KB
ID:	2208788   Click image for larger version

Name:	Mittelstück 2.jpg
Views:	3051
Size:	82.9 KB
ID:	2208789   Click image for larger version

Name:	Mittelstück 3.jpg
Views:	3074
Size:	110.1 KB
ID:	2208790  

Last edited by thomasmuckus; 05-25-2017 at 12:19 AM.
Old 04-08-2017, 01:29 PM
  #9  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

I started to build the centerpiece of the upper wing. At first I only glued with white glue the wooden parts, after its dry, tomorrow, I glue the wingjoinerbox with epoxyglue.
Attached Thumbnails Click image for larger version

Name:	Mittelstück 4.jpg
Views:	3071
Size:	190.6 KB
ID:	2208896   Click image for larger version

Name:	Mittelstück 5.jpg
Views:	3098
Size:	197.3 KB
ID:	2208897  
Old 05-24-2017, 11:15 AM
  #10  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

After a break (I wasn`t able to ad pictures?????) it`s going on there. Fortunately they changed the rules to manage attachments back. I don`t like those clouds or other modern stuff, for me it is easier to upload pics in the direct way.
So I continouded with the elevator.

The hinges are added


The leading edge fromthe rudder needs a little shaping

I failed my goal (150g) very close but actually I can live with this 167.44 g. The plan is, make the elevator removable and, just like the original, I want to make the setting angle adjustable.
Attached Thumbnails Click image for larger version

Name:	Höhenleitwerk 6.jpg
Views:	3011
Size:	169.7 KB
ID:	2216778   Click image for larger version

Name:	Höhenleitwerk 7.jpg
Views:	3061
Size:	178.5 KB
ID:	2216779   Click image for larger version

Name:	Höhenleitwerk 8.jpg
Views:	3033
Size:	160.5 KB
ID:	2216780   Click image for larger version

Name:	Höhenleitwerk 9.jpg
Views:	3059
Size:	164.6 KB
ID:	2216781   Click image for larger version

Name:	Höhenleitwerk 12.jpg
Views:	3010
Size:	162.8 KB
ID:	2216783  

Last edited by thomasmuckus; 05-25-2017 at 12:21 AM.
Old 05-24-2017, 11:21 AM
  #11  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

After finishing the tail, I finished the shell construktion of the centerpiece from the upper wing.
I`m sure the pics will speak for themself


the closing part of the trailing edge is a aluminiumtube (2 mm diameter).It imitates the steelwire at the original wing.
Attached Thumbnails Click image for larger version

Name:	Mittelstück 7.jpg
Views:	3129
Size:	191.6 KB
ID:	2216784   Click image for larger version

Name:	Mittelstück 8.jpg
Views:	2995
Size:	180.4 KB
ID:	2216785   Click image for larger version

Name:	Mittelstück 9.jpg
Views:	3120
Size:	193.2 KB
ID:	2216786  

Last edited by thomasmuckus; 05-24-2017 at 01:09 PM.
Old 05-24-2017, 11:41 AM
  #12  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Last weekend I got the ribs for the upper wing and so I started building the right half of the upperwing. At first, I counted the ribs, and, we forgot making number 13 !

No problem, Dieter milled them.
The wingbuilding started with gluing the spars and with the rootribs, I had to double them.

I also builded the wingtips, laminated from 2mm Bals-strips, in the middle there is a layer made from 0,75 mm birch-plywood. The result is a very, very light but strong constuction.

The rest is simple,not really special.

For checking the exact dihedral I added the centerpiece to the wing.

Actually I`m very satified, it works like I`d wished it
Attached Thumbnails Click image for larger version

Name:	Fläche oben 1.jpg
Views:	3027
Size:	138.6 KB
ID:	2216787   Click image for larger version

Name:	Fläche oben 2.jpg
Views:	3017
Size:	167.5 KB
ID:	2216788   Click image for larger version

Name:	Fläche oben 3.jpg
Views:	3068
Size:	134.3 KB
ID:	2216789   Click image for larger version

Name:	Fläche oben 5.jpg
Views:	2977
Size:	109.5 KB
ID:	2216791   Click image for larger version

Name:	Fläche oben 6.jpg
Views:	3024
Size:	112.7 KB
ID:	2216792   Click image for larger version

Name:	Fläche oben 7.jpg
Views:	2971
Size:	113.0 KB
ID:	2216793   Click image for larger version

Name:	Fläche oben 8.jpg
Views:	2994
Size:	167.8 KB
ID:	2216794   Click image for larger version

Name:	Fläche oben 9.jpg
Views:	3004
Size:	186.2 KB
ID:	2216795  

Click image for larger version

Name:	Fläche oben 9a.jpg
Views:	2985
Size:	179.1 KB
ID:	2216796   Click image for larger version

Name:	Fläche oben 10.jpg
Views:	3004
Size:	177.2 KB
ID:	2216797   Click image for larger version

Name:	Fläche oben 12.jpg
Views:	2981
Size:	192.6 KB
ID:	2216799  

Last edited by thomasmuckus; 05-25-2017 at 12:23 AM.
Old 06-24-2017, 12:15 AM
  #13  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

In the last days I finished the second half of the upper wing, Doesn’t looks spectacular, see the pics.

The structure of the wingtips seems a little bit shakily and fleecy, but is is the original structure and, when glued together it is pretty light and very strong

now the complete halfwing

now a little puzzle, what will this become?

the srew-joint. At first, I was going to built it also in the original structure (loop and bolt), but it seems to considerable and to heavy so I decidet to make it simple (and lighter)

I proudly present > the upper wing

Its current weight is 1065 g, devWing allows me 1259 g, means it gives a competitive edge in whigt. I`m sure I`ll add in future so many details, I will need it. I`m very glad, the weight-difference between the two halfwings is only 5 g. I`m very satisfied with this.
Attached Thumbnails Click image for larger version

Name:	Fläche oben 21.jpg
Views:	2940
Size:	177.5 KB
ID:	2221314   Click image for larger version

Name:	Fläche oben 22.jpg
Views:	2928
Size:	155.4 KB
ID:	2221315   Click image for larger version

Name:	Fläche oben 23.jpg
Views:	2920
Size:	110.1 KB
ID:	2221316   Click image for larger version

Name:	Fläche oben 24.jpg
Views:	2933
Size:	188.3 KB
ID:	2221317   Click image for larger version

Name:	Fläche oben 27.jpg
Views:	2927
Size:	172.1 KB
ID:	2221318   Click image for larger version

Name:	Fläche oben 28.jpg
Views:	2891
Size:	44.3 KB
ID:	2221319   Click image for larger version

Name:	Fläche oben 29.jpg
Views:	2877
Size:	58.4 KB
ID:	2221320   Click image for larger version

Name:	Fläche oben 30.jpg
Views:	2884
Size:	68.2 KB
ID:	2221321  

Click image for larger version

Name:	Fläche oben 31.jpg
Views:	2944
Size:	46.7 KB
ID:	2221322   Click image for larger version

Name:	Fläche oben 32.jpg
Views:	2894
Size:	114.8 KB
ID:	2221323   Click image for larger version

Name:	Fläche oben 33.jpg
Views:	2915
Size:	175.2 KB
ID:	2221324  

Last edited by thomasmuckus; 07-07-2017 at 11:07 AM.
Old 06-24-2017, 07:46 AM
  #14  
flyboy2610
My Feedback: (1)
 
flyboy2610's Avatar
 
Join Date: May 2004
Location: Lincoln, NE
Posts: 705
Received 43 Likes on 32 Posts
Default

That is quite an undertaking! Looks very nice! You are going to have a first class model when you are done.
Old 07-07-2017, 09:50 AM
  #15  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Now I started to buld the lower wing. At first, there was a decision to do > on the lower wing are bomb racks, two on each side.


At first I wanted to make the bombs for casting off. I was talking about this with some of my friends and at the end, I canceled this idea. At first, I will add to much weight. At second, it looks not really good, and so I decided to add the bombs with screws under the wing. The screenshoot from devWing shoes the position (the green areas)



The next stepp was to build the bell crank unit for the aileron pushrod. My buddy had done really good pics from the bell crank house so I`ve done a little drawing, my friend with the milling machine done a good job and so I was able to built that things.







The leading edge and the trailing egdes needed a little preparation, I added a pinewood to the leading edge to make it stronger and a small alu-tube to the tailing edge.




the rest is very simple, a pure diligence work.






at last for today, one of my buddys wasn`t sure if the SAITO would give enough power for that biplane after he saw the big upper wing. At the pic below I will show you the wings in comparison. The lower wing is so much smaller, I`m sure the power will be enough. If I`m able to manage my goal with 11-12 kg, the wing loading will be close to 100g/dm², a good value

Attached Thumbnails Click image for larger version

Name:	Navy.jpg
Views:	2799
Size:	47.8 KB
ID:	2223330   Click image for larger version

Name:	Frästeile.jpg
Views:	2827
Size:	106.0 KB
ID:	2223331   Click image for larger version

Name:	Fläche unten 2.jpg
Views:	2823
Size:	96.0 KB
ID:	2223332   Click image for larger version

Name:	Fläche unten 3.jpg
Views:	2839
Size:	82.7 KB
ID:	2223333   Click image for larger version

Name:	Fläche unten 5.jpg
Views:	2865
Size:	146.1 KB
ID:	2223334   Click image for larger version

Name:	Fläche unten 6.jpg
Views:	2935
Size:	125.3 KB
ID:	2223335   Click image for larger version

Name:	Fläche unten 7.jpg
Views:	2798
Size:	75.7 KB
ID:	2223336   Click image for larger version

Name:	Fläche unten 8.jpg
Views:	2811
Size:	99.0 KB
ID:	2223337  

Click image for larger version

Name:	Fläche unten 9.jpg
Views:	2818
Size:	174.1 KB
ID:	2223338   Click image for larger version

Name:	Fläche unten 11.jpg
Views:	2824
Size:	193.7 KB
ID:	2223339   Click image for larger version

Name:	Fläche unten 12.jpg
Views:	2819
Size:	153.4 KB
ID:	2223340   Click image for larger version

Name:	devWing Fläche unten2.jpg
Views:	2837
Size:	123.3 KB
ID:	2223341  

Last edited by thomasmuckus; 07-11-2017 at 06:10 AM.
Old 07-13-2017, 07:43 AM
  #16  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 14,174
Received 275 Likes on 240 Posts
Default

Very impressive so far!
Old 07-13-2017, 08:26 AM
  #17  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

thanks a lot my friend.
Currently I`m working on the other half of the lower wing, I don`t do any pics from this because it is still the same game like the first one.
Today had a call with the company who had to build the legs from the landing gear. Bad news, the guy had broken his hand and there is a big delay. I (we) hope that he is able to make them into the next two months, this will be the time when I try to start building the hull. We will see, actually I`m very relaxed, there is a lot of work to do with the wings.
Old 07-13-2017, 08:43 AM
  #18  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 14,174
Received 275 Likes on 240 Posts
Default

It's a shame a standard straight oleo strut can't be modified to be used as the shock absorber for your gear. I hope his hand heals fast!

Eppendorf, isn't that part of Hamburg? My son and his wife spent a lot of time in Hamburg when they lived over there. They both attended Georg-August Universitat in Gottingen. Him from the USA and her from Poland.

Mike
Old 07-13-2017, 09:22 AM
  #19  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

May be that it would be possible to do but I think, the gear is a such outstandig part of the aircraft so that all "no-scale" things would be wrong. This gear makes it difference to all other ordinary biplanes. I own a lathe, but Bernd Lieseke from HAWE-Modellsport is one of the most experienced people in this business. He`s making not only the leg, he also build the small retracting strut too.
My Eppendorf is not the part of Hamburg, it is a small village close to Chemnitz in Saxonia. You can locate it when you search with the zip code 09575 at googlemaps.

Last edited by thomasmuckus; 07-13-2017 at 09:25 AM.
Old 07-13-2017, 09:31 AM
  #20  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 14,174
Received 275 Likes on 240 Posts
Default

Ah! I know where you are now you are west of Dresden! My wife and I recently restored an old photo album for her cousin that belonged to their grandfather. His branch of the family was from the Dresden area. In the album was pictures of Dresden in 1914, a great uncle in his 1915 army uniform, and pictures on the funeral of King Frederick Augustus III in 1932.
Old 07-30-2017, 12:24 AM
  #21  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Hi Mike,
If your live would bring you to Dresden, give me a sign, it would be a great idea to meet.

I finished the second lower wing yesterday. I `m proud again, the wight difference between the wings is only 2 gramms, the intensive use of the letter weight device was worth it.
It seems the aircraft is close to finish. After shaping and covering > the wings and the tail are ready, I have an engine > what needs an aircraft more?


Hull, gear and the other scale stuff is only harmful air resistance . O.K., I have to adjust the wings and the tail but as a matter of principle > it`s an aircraft
Attached Thumbnails Click image for larger version

Name:	Rohbau.jpg
Views:	2773
Size:	189.4 KB
ID:	2226172   Click image for larger version

Name:	Rohbau 2.jpg
Views:	2731
Size:	158.3 KB
ID:	2226173  

Last edited by thomasmuckus; 07-30-2017 at 12:32 AM.
Old 08-07-2017, 04:43 AM
  #22  
smithcreek
My Feedback: (25)
 
smithcreek's Avatar
 
Join Date: Jun 2008
Location: Westerly, RI
Posts: 1,064
Likes: 0
Received 0 Likes on 0 Posts
Default

Wonderful work!!!!!!!!
Old 08-07-2017, 08:18 AM
  #23  
FlyerInOKC
My Feedback: (6)
 
FlyerInOKC's Avatar
 
Join Date: Nov 2004
Location: Oklahoma City, OK
Posts: 14,174
Received 275 Likes on 240 Posts
Default

Beautiful work Thomas!
Old 01-07-2018, 06:48 AM
  #24  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Hi guys,
yes, I`m alive.
Sorry, it was a really long break, but, only in writing, not in building. I became a grandpa and so there any other importantthings in my life.
Now it`s going straight on there.
I have continued the wings, wth the ailerons. The had to cutteed out andtheaxle (1mm steel whire) was added.



after that, i boxed them aso to get a leading edge for the ailerons.

Yes. I`ve done two of them



to make a fillet, I added some balsa strips.
Attached Thumbnails Click image for larger version

Name:	Querruder 2.jpg
Views:	2639
Size:	171.3 KB
ID:	2250151   Click image for larger version

Name:	Querruder 3.jpg
Views:	2638
Size:	114.3 KB
ID:	2250152   Click image for larger version

Name:	Querruder 4.jpg
Views:	2646
Size:	97.7 KB
ID:	2250153   Click image for larger version

Name:	Querruder 5.jpg
Views:	2649
Size:	101.9 KB
ID:	2250154   Click image for larger version

Name:	Querruder 7.jpg
Views:	2712
Size:	146.5 KB
ID:	2250155   Click image for larger version

Name:	Querruder 9.jpg
Views:	2650
Size:	171.2 KB
ID:	2250156  

Last edited by thomasmuckus; 01-07-2018 at 06:50 AM.
Old 01-07-2018, 07:40 AM
  #25  
thomasmuckus
Thread Starter
 
thomasmuckus's Avatar
 
Join Date: Jan 2014
Location: Eppendorf, Saxonia, Germany
Posts: 129
Likes: 0
Received 7 Likes on 7 Posts
Default

Now back to the landing gear.
By surfing in the www I found a guy named Chuck Graves , the owner ofhttp://www.warbirdcolors.com
Authentic Colors For Your Scale Warbird he also sells Vance Mosher-Plans and he was so friendly to send the plan of the gear from Curtiss Helldiver SBC-4 . Not the same aircraft, but the same gear-principle. So I reworked the gear-drive complete, from two engines to one, central. To check if it works, I decided to build a "dummy-hull" in scale 1/1.
At first, the DevFus-Work

You can make nice games with this

This was the tun of my friend with the milling machine

stick a little
Attached Thumbnails Click image for larger version

Name:	Dummy.jpg
Views:	2642
Size:	129.4 KB
ID:	2250162   Click image for larger version

Name:	Dummy 1.jpg
Views:	99
Size:	142.5 KB
ID:	2250163   Click image for larger version

Name:	Dummy2.jpg
Views:	2647
Size:	142.2 KB
ID:	2250164   Click image for larger version

Name:	Dummy 3.jpg
Views:	2624
Size:	154.6 KB
ID:	2250165   Click image for larger version

Name:	Spielerei.jpg
Views:	2619
Size:	153.5 KB
ID:	2250167  

Thread Tools
Search this Thread

Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.