Go Back  RCU Forums > RC Airplanes > Extreme Speed Prop Planes
Reload this Page >

Lanier Shrike Engine, prop size, and tips please.

Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Lanier Shrike Engine, prop size, and tips please.

Reply

Old 10-19-2004, 10:47 PM
  #1  
smokinghole42
Senior Member
Thread Starter
My Feedback: (2)
 
Join Date: Aug 2003
Location: berry, WI
Posts: 100
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Lanier Shrike Engine, prop size, and tips please.

One of the people in my club has a Lanier Shrike 40 and I absolutely love the airframe. I have one on its way, but I was wondering what size prop to use. I have a Magnum 46XL and I love the engine with an 11-6 APC prop, but from what I read here everyone has the small 9 inch props with really high RPM's out of the engine. I like the engine's performance with this prop, and I've heard that I can burn out the bearings with the high rev's. What size prop should I use? Also, any construction, covering, or flying tips for this plane?
smokinghole42 is offline  
Reply With Quote
Old 10-20-2004, 08:19 AM
  #2  
Cyclic Hardover
Senior Member
My Feedback: (3)
 
Cyclic Hardover's Avatar
 
Join Date: May 2002
Location: New Mexico,
Posts: 7,296
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

What helps burn out bearings is also not using throttle management. I've been running a 46pro and 9/7 prop for 3 years and no problems.

Also the plane is very nose heavy and try and place the receiver and battery as far back as possible.

Don't worry about elevator rates. You will need all you can get on landings. My range of travel is almost full up.
Cyclic Hardover is offline  
Reply With Quote
Old 10-20-2004, 12:08 PM
  #3  
Razor-RCU
Senior Member
My Feedback: (50)
 
Razor-RCU's Avatar
 
Join Date: Mar 2002
Location: Mira Mesa, CA
Posts: 5,405
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

9x7 and maybe try the Tower muffler for 500-1,000 more RPM's than stock!

Use fuel with plenty of castor and tune a bit rich on the ground...
Razor-RCU is offline  
Reply With Quote
Old 10-20-2004, 12:13 PM
  #4  
Mike Connor
Senior Member
My Feedback: (5)
 
Mike Connor's Avatar
 
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

The Shrike 40 will fly fine on a 10" or 11" prop but your best speed will come from a 9x7/8. I doubt you will shorten the life of your engine much with a smaller prop if you don't run it too lean.

I extended the top hatch back about 2" so I could put the Batt. in the very rear compartment. Balance it as stated on the plans for slow nose high landings with out extreme elevator throws.
Mike Connor is offline  
Reply With Quote
Old 10-20-2004, 01:15 PM
  #5  
bob27s
My Feedback: (19)
 
bob27s's Avatar
 
Join Date: Apr 2002
Location: Cleveland, OH
Posts: 5,576
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Smokin......

Running the engine hard will not burn out the bearings or damage the engine, unless 1) you do not balance the prop 2) the fuel/oil is garbage 3) the bearings were total cheese to start with 5) you fail to use after-run oil and the bearings corrode 6) You run it too lean and toast it.

The Mag 46 will happy turn up an APC 9x7 over 15K rpm with the stock muffler. Add on a tower or jett muffler and get more as Razor noted.

The only concern with turning this engine up is the muffler..... ie...vibration shaking the thing apart. Keep the prop balanced, and its not a big issue. APC props are pretty well balanced as the come, but check it and make it perfect.

I perfer synth/castor blend fuel. 10-15% nitro prefered. Powermaster, Omega, and others offer typical formualtions.

For the airframe, as noted, make sure you get the CG correct. Noseheavy is not good on this airplane (there is no tail moment to compensate for it).

Let the engine turn up, launch it about 500 rpm down from peak rpm......enjoy the Shrike

Bob
bob27s is offline  
Reply With Quote
Old 10-20-2004, 11:30 PM
  #6  
smokinghole42
Senior Member
Thread Starter
My Feedback: (2)
 
Join Date: Aug 2003
Location: berry, WI
Posts: 100
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

I think I'll end up going with a 10-7 or 9-7 prop for the engine. It's been a couple months since I saw a shrike fly, how do they take off? I know they don't have lnading gear more than a skid for landing, but for takeoff will it need to be hand launched like an elctric plane, or will it just pull itself into the air nose high like the one i saw? Does anyone have any pictures of what they've done with thier shrikes?

Thanks
smokinghole42 is offline  
Reply With Quote
Old 10-21-2004, 12:33 AM
  #7  
robert92679
Member
 
Join Date: Apr 2004
Location: Trabuco Canyon, CA
Posts: 96
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

You've had some good advice here regarding the CG and engine management. I'll suggest that you might want to reinforce the elevator, especially near the center where the control horn goes. I used some fiberglass cloth with thinned epoxy along the bottom elevator surface. I lost my first Shirke when the elevator/control horn let loose in this area. I reinforced the second and it lasted a long, long time, until one day I zigged when I should have zagged.

As for props, for the first flights you might want to start with something on the big side (10x7 or even 11x6). These will give you smoother takeoffs (ie. hand launches) by providing more thrust, and keep the top end speed down on the first flights while you get it trimmed out. After you're comfortable, drop down to the smaller prop for better speed.

Consider a bright trim color for the leading edge of the wings. It makes it much easier to see the plane when you turn in and you're looking at the plane head on.

As for what others have done with a Shrike...
Attached Thumbnails Click image for larger version

Name:	Lj22542.jpg
Views:	14
Size:	114.3 KB
ID:	184925  
robert92679 is offline  
Reply With Quote
Old 10-21-2004, 02:18 AM
  #8  
LGM Graphix
My Feedback: (22)
 
LGM Graphix's Avatar
 
Join Date: Apr 2003
Location: Abbotsford, BC, CANADA
Posts: 5,585
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Here's what I did with my shrike.....



LGM Graphix is offline  
Reply With Quote
Old 10-21-2004, 07:16 AM
  #9  
Bob.R
Senior Member
My Feedback: (2)
 
Bob.R's Avatar
 
Join Date: Jun 2004
Location: Canyon Lake, TX
Posts: 788
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Jeremy - what is the base purple color? Plastic film? Or did you glass the Shrike? If it is plastic film, what kind of prep work do you do prior to painting? I like your work!
Bob.R is offline  
Reply With Quote
Old 10-21-2004, 09:48 AM
  #10  
bob27s
My Feedback: (19)
 
bob27s's Avatar
 
Join Date: Apr 2002
Location: Cleveland, OH
Posts: 5,576
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Jeremy....

do you net recover that thing? Its so pretty I'd be affraid to belly land it !

Nice work....... beautiful plane.
bob27s is offline  
Reply With Quote
Old 10-21-2004, 12:03 PM
  #11  
Mike Connor
Senior Member
My Feedback: (5)
 
Mike Connor's Avatar
 
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Simple but very easy to see.
Attached Thumbnails Click image for larger version

Name:	Nl30811.jpg
Views:	10
Size:	64.8 KB
ID:	185039   Click image for larger version

Name:	Kf13634.jpg
Views:	7
Size:	34.0 KB
ID:	185040  
Mike Connor is offline  
Reply With Quote
Old 10-21-2004, 02:31 PM
  #12  
ckoerner
Senior Member
My Feedback: (2)
 
ckoerner's Avatar
 
Join Date: Jan 2002
Location: Crest Hill, IL
Posts: 429
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Has anyone tried a Jet FIRE 50 on this plane? I was wondering if there is enough room to get the pipe out.
Thanks,
Craig
ckoerner is offline  
Reply With Quote
Old 10-21-2004, 11:31 PM
  #13  
Razor-RCU
Senior Member
My Feedback: (50)
 
Razor-RCU's Avatar
 
Join Date: Mar 2002
Location: Mira Mesa, CA
Posts: 5,405
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Jeremy is an expert painter/artist, that probably took him an hour...

He also has one of the nicer Whips on the planet in the for sale section...

I go maybe 2 Bright colors on top, dark on bottom and I use shaker cans [X(]

And no, my skills are not for sale-
Attached Thumbnails Click image for larger version

Name:	Hf10299.jpg
Views:	12
Size:	42.4 KB
ID:	185232   Click image for larger version

Name:	Zu65399.jpg
Views:	6
Size:	53.1 KB
ID:	185233  
Razor-RCU is offline  
Reply With Quote
Old 10-21-2004, 11:32 PM
  #14  
Razor-RCU
Senior Member
My Feedback: (50)
 
Razor-RCU's Avatar
 
Join Date: Mar 2002
Location: Mira Mesa, CA
Posts: 5,405
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

and yes that plastic spinner on Whip#1 DID explode on launch....
Razor-RCU is offline  
Reply With Quote
Old 10-21-2004, 11:57 PM
  #15  
LGM Graphix
My Feedback: (22)
 
LGM Graphix's Avatar
 
Join Date: Apr 2003
Location: Abbotsford, BC, CANADA
Posts: 5,585
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

I covered my shrike with Solartex iron on fabric from balsa USA.
Then painted it quick. I didn't want to spend any time on it and I knew I could paint it faster than I could monokote it, I spent about 20 minutes on the bottom of it and about 15 minutes on the top, 2 coats of clear and I was happy enough LOL
LGM Graphix is offline  
Reply With Quote
Old 10-21-2004, 11:59 PM
  #16  
LGM Graphix
My Feedback: (22)
 
LGM Graphix's Avatar
 
Join Date: Apr 2003
Location: Abbotsford, BC, CANADA
Posts: 5,585
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

Here's the bottom of my whiplash

LGM Graphix is offline  
Reply With Quote
Old 10-22-2004, 08:18 AM
  #17  
bob27s
My Feedback: (19)
 
bob27s's Avatar
 
Join Date: Apr 2002
Location: Cleveland, OH
Posts: 5,576
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Lanier Shrike Engine, prop size, and tips please.

ORIGINAL: ckoerner

Has anyone tried a Jet FIRE 50 on this plane? I was wondering if there is enough room to get the pipe out.
Thanks,
Craig
Let me look in my picture pile.... I think I have a FIRE .46 powered Shrike in here somewhere.....
bob27s is offline  
Reply With Quote

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


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service