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SHRIKE CLUB # 1

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Old 03-13-2014, 08:16 PM
  #776  
AndyKunz
 
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I was digging around in my old photos today and found some of my very first Shrike. I built this in 2008 in the hotel when I first moved to Champaign to work for Spektrum.

The date on the photos is 25 July 2008.

Andy
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Old 09-05-2014, 06:36 PM
  #777  
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Originally Posted by AndyKunz View Post
Plans for a Shrike has been published again, this time for a micro size (180) in Flying Models, November 2013.



http://carstensbookstore.com/shrike180.html

Andy
Before Flying Models went away I was able to recover my rights to the Shrike 180 and Neo 180 plans and articles. If you're interested you can contact me through my personal website www.andykunz.us - click on "Magazine Articles" when you get there.

Andy
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Old 12-27-2014, 11:31 AM
  #778  
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Yesterday I cut lettering for my big Shrike using my laser cutter.

Next step will be to change the nose door to two doors so it can't hit the ground on a munged taxi.

Andy

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Old 10-07-2015, 09:59 AM
  #779  
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Shrike 40 - electrified. I am trying to find a high RPM 60-size elelctric motor for my 40-size Shrike. Anyone have suggestions? Most 60-size outrunners are fairly low rpm and use very large props. Trying to find some thing that will turn a 60-size electric motor with a max - 12" prop. Maybe that isn't practical???
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Old 10-19-2015, 01:03 PM
  #780  
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just picked up a 10-15 shrike Kit. If anyone needs a set of plans let me know.
I will be scratch building one this winter. I will be saving the kit.
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Old 12-03-2015, 08:06 PM
  #781  
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Default Anybody still flying these?

Just finished framing up a kit I've had for about 10 years. Going electric with the G46. 13,400 RPM on a 12X8 prop with a 5S 3,300 mAh battery pack. Should hit 101 mph if my calculations are correct.
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Old 12-04-2015, 05:03 AM
  #782  
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Thanks for the reply
What motor is the G46???
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Old 12-04-2015, 05:12 AM
  #783  
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A Hobby King electric replacement for a nitro 40-46 engine:

[h=3]Battery: 4~5 Cell /14.4~18.5V
RPM: 670kv
Max current: 40A
No load current: 10V/3.9A
Current capacity: 55A/15sec
Internal resistance: 0.04 ohm
Weight: 303g (not including connectors)
Diameter of shaft: 6mm
Dimensions: 76x50mm

Required;
60A ESC
4S~5S Li-Po / 12 ~ 16-cell Ni-MH/Ni-Cd
12x8 ~ 14x10 prop
Suitable for sport and scale airplanes weighing 4 to 7 pounds (1.8–3.2 kg).


[/h]
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Old 12-04-2015, 06:10 AM
  #784  
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Originally Posted by W4DJW View Post
Just finished framing up a kit I've had for about 10 years. Going electric with the G46. 13,400 RPM on a 12X8 prop with a 5S 3,300 mAh battery pack. Should hit 101 mph if my calculations are correct.
All the time! This past summer mine was my most-flown model.

Andy
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Old 12-05-2015, 11:13 AM
  #785  
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Nice Shrike Andy! Like the retracts and larger tail section. Have you ever put an AS3X in a Shrike? I ordered two more AR636 receivers, one for the current Shrike build. Thinking the stabilization will make hand launches much simpler.
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Old 12-05-2015, 11:36 AM
  #786  
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I might for next summer, just to play with it. It really doesn't need it - it grooves nicely.

Andy
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Old 12-05-2015, 09:03 PM
  #787  
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I know I'm a lot late to the party but I must say, this is a fantastic shrike club! All the references to the build threads are most helpful. Sorry I didn't find this thread until my 10+ year old kit was already framed up. There are a few things I would have done differently. Like the thicker R1 ribs (I have a 3 axis CNC router and could have made replacements) and the wider tail for more elevator authority on landing. I did see someone mount the elevator servo in the hollow space behind F4 and did make that modification before covering the fuselage. Getting more weight aft is good for the CG and eliminates / simplifies the linkage passing through the area where the magnets are holding the hatch down.

For the elevator authority at landing, I'm thinking the shrike is at it's most basic a flying wing with elevator assist for pitch control. Has anyone tried "elevon" mixing? Mixing the ailerons with elevator in the transmitter as is done on flying wings without an elevator? I'm thinking that would give more elevator authority at landing.

Again, great thread. Sorry I'm so late getting here :-( Control surfaces are hinged and covered. Need to put breather holes in the bottom to let the heat/ pressure out of the fuselage and I'll be on to finishing up with the rest of the covering. All up weight is calculated to be 3.5 lbs. Static thrust should be 5.19 lbs on a 10x8 prop for 101 mph at 1 kw draw on the G46 motor (I'll need to keep that to less than 15 second bursts).
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Old 12-06-2015, 12:11 PM
  #788  
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Mine can be flown on the tail only, as each surface has a separate servo.

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Old 12-11-2015, 11:28 PM
  #789  
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Default Making Progress



Anyone else out there building a Shrike 40?
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Last edited by W4DJW; 12-13-2015 at 08:42 PM.
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Old 12-15-2015, 04:56 AM
  #790  
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Default POVRay Animation 360 degree view

3D Rendering:

https://youtu.be/_YlrYRPETcg?list=PLg36b42BUeEOr1M_p3vhypK0Dwr_GSIu_
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Old 12-19-2015, 04:48 PM
  #791  
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Two Shrike 40's racing in virtual reality:

https://youtu.be/TeIsLXx-mjI
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Old 12-20-2015, 11:23 AM
  #792  
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They're not banking hard enough for those turns!

Andy
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Old 12-21-2015, 11:43 AM
  #793  
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Good to know from someone with real life experience with these aircraft. I'll dial in a little more and re-render.
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Old 12-21-2015, 12:16 PM
  #794  
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You want them 90 degrees over on a tight turn, 70+ for more gentle.

Here, watch the maiden flight:

https://www.youtube.com/watch?v=Rd9Tx_xDi0c
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Old 12-21-2015, 03:02 PM
  #795  
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I watched your maiden flight video several times already. Great maiden! Paid attention to the banking this time and I see what you mean. Went ahead and modified the bank angle and perhaps overshot.

Need to extend the approach, narrow the camera angle & follow the lead or 2nd place plane from the ground view to make it more realistic. That will take another render which is a couple hours. Renders happen while I'm downstairs in the airplane room covering.

Went to the hobby shop today to get the fiberglass for the wing roots and the covering. Think I'll go with the blue, green and white covering. Video helps know what it's going to look like at the field.

You'll want to bump it up to 1080p60 and full screen to see the Shrikes up close:

https://youtu.be/OVxqda2ymmU Dave (W4DJW)
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Old 12-22-2015, 10:28 PM
  #796  
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Made some updates to the banking and added some high speed low flying.

https://youtu.be/y8o_RwJp7iE

Last edited by W4DJW; 12-24-2015 at 06:43 PM.
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Old 12-24-2015, 02:19 PM
  #797  
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Why those animations ?
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Old 12-24-2015, 03:00 PM
  #798  
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I guess because they can.
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Old 12-24-2015, 05:21 PM
  #799  
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To visualize the covering before covering.
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Old 01-02-2016, 02:36 PM
  #800  
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Here's a video of a real Shrike flown by the original designer.

http://rcairgallery.com/rcairgallery...urbine.mp4.php

Andy
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