RC Warbirds and Warplanes Discuss rc warbirds and warplanes in this forum.

SBD Dauntless by ESM

Reply
Old 05-02-2014, 01:48 AM
  #201
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

It is troublesome to have to modify mufflers. Better that you found it now that later.
OldScaleGuy is offline  
Reply With Quote
Old 05-02-2014, 06:35 AM
  #202
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Yes, thats definitely right Steve. But Ive been so fed up with this workes. That is still again and again.

Last edited by Prekin; 05-02-2014 at 06:38 AM.
Prekin is offline  
Reply With Quote
Old 05-25-2014, 09:57 AM
  #203
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Last day I drew a spinner. From this 3D model Ill make a design. The engine has only one central srew, so it was pretty easy job. Now I will wait for the production. I hope I will have it next week.
Attached Thumbnails
Click image for larger version

Name:	kužel 1.jpg
Views:	33
Size:	44.9 KB
ID:	1998081   Click image for larger version

Name:	kužel 2.jpg
Views:	31
Size:	25.6 KB
ID:	1998082   Click image for larger version

Name:	kužel 3.jpg
Views:	31
Size:	34.0 KB
ID:	1998083  
Prekin is offline  
Reply With Quote
Old 06-06-2014, 11:20 AM
  #204
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Spinner is partially done. At the end it is necessary to make a nut up to base of spinner.
Attached Thumbnails
Click image for larger version

Name:	P6060982.JPG
Views:	48
Size:	1.06 MB
ID:	2001666   Click image for larger version

Name:	P6060981.JPG
Views:	55
Size:	1.05 MB
ID:	2001667  
Prekin is offline  
Reply With Quote
Old 06-16-2014, 10:34 AM
  #205
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Spinner is finally done. I hope Im looking forward to a maiden flight.
Attached Thumbnails
Click image for larger version

Name:	P6130983.JPG
Views:	53
Size:	1.08 MB
ID:	2005773  
Prekin is offline  
Reply With Quote
Old 06-16-2014, 12:09 PM
  #206
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

That looks great Prekin. You could start a new business offering those.
OldScaleGuy is offline  
Reply With Quote
Old 06-23-2014, 08:08 AM
  #207
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Dauntless is ready to fly. Last day I balanced it and made a first rolling on the playground. I want to add a scale gunner, but it will be after the maiden flight.
Attached Thumbnails
Click image for larger version

Name:	P6230719.JPG
Views:	51
Size:	1.05 MB
ID:	2008047   Click image for larger version

Name:	P6230718.JPG
Views:	59
Size:	1,014.2 KB
ID:	2008048   Click image for larger version

Name:	P6230717.JPG
Views:	61
Size:	1.05 MB
ID:	2008049   Click image for larger version

Name:	P6230715.JPG
Views:	51
Size:	1.09 MB
ID:	2008050   Click image for larger version

Name:	P6230708.JPG
Views:	56
Size:	1.05 MB
ID:	2008051  

Click image for larger version

Name:	P6230706.JPG
Views:	62
Size:	1.04 MB
ID:	2008052  
Prekin is offline  
Reply With Quote
Old 06-23-2014, 08:14 AM
  #208
vasek
 
vasek's Avatar
 
Join Date: Jan 2002
Location: Prague, CZECH REPUBLIC
Posts: 4,071
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Nice !
vasek is offline  
Reply With Quote
Old 06-23-2014, 10:53 AM
  #209
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I hope, she will be also nice after the maiden flight

Last edited by Prekin; 06-23-2014 at 12:02 PM.
Prekin is offline  
Reply With Quote
Old 06-24-2014, 10:13 AM
  #210
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Here is a picture where you can see, how I attached receiver. Between the cockpit and wing is not much space and there are only a few millimeters between the RX and wing.
Attached Thumbnails
Click image for larger version

Name:	P6230705.JPG
Views:	79
Size:	1.00 MB
ID:	2008459  
Prekin is offline  
Reply With Quote
Old 06-24-2014, 10:21 AM
  #211
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Great job Prekin. Do you have a plan for the maiden?
OldScaleGuy is offline  
Reply With Quote
Old 06-24-2014, 10:33 AM
  #212
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

It depends on the date when I would visit my parents. I have two possibilities. The first is the nearest saturday or sunday and the next is saturday 12nd July.
What about your Hellcat Steve, some progress?
Prekin is offline  
Reply With Quote
Old 06-25-2014, 05:57 AM
  #213
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Prekin, please let us know how your maiden goes for you. No progress on the Hellcat, it is flying season now so progress stops. The goal will be to finish it this winter. Thank you for asking.
OldScaleGuy is offline  
Reply With Quote
Old 06-25-2014, 06:47 AM
  #214
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Be sure Steve, I want to make a video, so Ill give you a report with some shots and video.
Prekin is offline  
Reply With Quote
Old 06-29-2014, 02:51 AM
  #215
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

This weekend is unfortunately very windy weather. So I set the engines rpm and weighed the Dauntless. The dry weight is 7715 g and the wing loading is 145 g/ sq.dm.
It is a little bit more than I expected, but the theacher at my university said: "Some door from barn could be a perfect airplane if you use good engine!"
Prekin is offline  
Reply With Quote
Old 06-29-2014, 03:01 AM
  #216
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

It is better to wait for reasonable conditions for maiden flights, sounds like you made a good decision.
For us that is 17 pounds, not bad at all for a plane of that size.
OldScaleGuy is offline  
Reply With Quote
Old 06-29-2014, 03:12 AM
  #217
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

I hope so Steve, but I still check the wind from my window and Im looking at the trees.
Prekin is offline  
Reply With Quote
Old 06-29-2014, 03:38 AM
  #218
OldScaleGuy
 
OldScaleGuy's Avatar
 
Join Date: Dec 2005
Location: Seymour, IN
Posts: 2,760
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

My determination regarding the trees, if you can see the back of the leaves it is too windy for maiden flights.
OldScaleGuy is offline  
Reply With Quote
Old 06-29-2014, 03:48 AM
  #219
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

My measure "tool" is one birch tree. It is the farest tree in the center of the picture. If the most of the branches are not vertical, it is too windy.
Attached Thumbnails
Click image for larger version

Name:	P6290731.JPG
Views:	32
Size:	1.02 MB
ID:	2009742  
Prekin is offline  
Reply With Quote
Old 07-12-2014, 12:04 PM
  #220
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Finally I passed maiden flight. If someone thinking about this ESM Dauntless, I recommend to use JC 28 EVO. With this engine and prop 18/10" it flies very well and realistic.
I made only one flight, because after the landing I was rolling and lost one nut on the gear. But now my Dauntless is ready for the next take-off. I hope tomorrow. Here is a short movie.

https://www.youtube.com/watch?v=STO4-ps72Tk&feature=youtu.be

Last edited by Prekin; 07-13-2014 at 10:34 AM.
Prekin is offline  
Reply With Quote
Old 07-12-2014, 01:53 PM
  #221
eskiserkan
 
Join Date: Nov 2004
Location: istanbul, HI, TURKEY
Posts: 75
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Prekin : Could you please tell me where is your CoG ?
eskiserkan is offline  
Reply With Quote
Old 07-12-2014, 10:01 PM
  #222
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Eskiserkan, manual says, the C.G. should be 125 mm from the leading edge. After my experience with ESM Stuka and La-7, I moved it 10- 15 mm before this position. So, now I set it 115 mm from the L.E.
Prekin is offline  
Reply With Quote
Old 07-13-2014, 03:34 AM
  #223
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

ESM pilots, check your ESM retract before every flying action. During the last landing I lost one wheel on the ESM retract. It went out of the main pin. The impact you can see in the pictures.
Attached Thumbnails
Click image for larger version

Name:	P7130762.JPG
Views:	63
Size:	1.09 MB
ID:	2013695   Click image for larger version

Name:	P7130761.JPG
Views:	68
Size:	1.03 MB
ID:	2013696   Click image for larger version

Name:	P7130760.JPG
Views:	79
Size:	997.6 KB
ID:	2013697  
Prekin is offline  
Reply With Quote
Old 07-13-2014, 10:38 AM
  #224
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Repairing progress. CA glue is a big helper. It is necessary to made a new front parts of the ribs around the retract mounting.
Attached Thumbnails
Click image for larger version

Name:	P7130799.JPG
Views:	33
Size:	1.08 MB
ID:	2013760   Click image for larger version

Name:	P7130798.JPG
Views:	29
Size:	1.06 MB
ID:	2013761   Click image for larger version

Name:	P7130796.JPG
Views:	29
Size:	1.01 MB
ID:	2013762   Click image for larger version

Name:	P7130795.JPG
Views:	27
Size:	1.02 MB
ID:	2013763   Click image for larger version

Name:	P7130793.JPG
Views:	28
Size:	1.05 MB
ID:	2013764  

Click image for larger version

Name:	P7130791.JPG
Views:	30
Size:	1.08 MB
ID:	2013765  
Prekin is offline  
Reply With Quote
Old 07-13-2014, 01:12 PM
  #225
Prekin
Thread Starter
 
Prekin's Avatar
 
Join Date: Jan 2008
Location: Brno, CZECH REPUBLIC
Posts: 1,370
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Some pictures from the airfield.
Attached Thumbnails
Click image for larger version

Name:	P7130747.JPG
Views:	31
Size:	3.12 MB
ID:	2013788   Click image for larger version

Name:	DSC07168.JPG
Views:	32
Size:	2.79 MB
ID:	2013789   Click image for larger version

Name:	DSC07174.JPG
Views:	43
Size:	2.97 MB
ID:	2013790   Click image for larger version

Name:	P7130754.JPG
Views:	37
Size:	863.9 KB
ID:	2013791  
Prekin is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
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



All times are GMT -8. The time now is 04:57 AM.