Speed Models,Stinger 21 pic  
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All Forums >> RC Airplanes >> Extreme Speed Prop Planes >> Speed Models,Stinger 21 pic
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Speed Models,Stinger 21 pic - 8/22/2004 3:19:47 AM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		Started on my Stinger this week, 90% done.OS 32sx up front, with an APC 7x6W.I will get some better pics when it stops raining and its not held together with tape!.This kit went together very well, but does take some time if you want it to look nice.Well back to the grind.Later Chris.

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RE: Speed Models,Stinger 21 pic - 8/22/2004 3:22:21 AM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		Sorry guys i dont know why the picture came out so big?

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RE: Speed Models,Stinger 21 pic - 8/22/2004 3:43:34 AM   
Razor-RCU



Posts: 5285
Joined: 3/21/2002
From: Ramona, CA, USA
Status: offline 		Looks good! Keep us posted...

Here is the smaller pic..

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RE: Speed Models,Stinger 21 pic - 8/22/2004 4:51:48 AM   
combatpigg



Posts: 9789
Joined: 11/22/2003
From: arlington, WA, USA
Status: online 		Nice looking plane! ! That .32 is sure a fantastic engine. Would like to hear how this combo works out.

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RE: Speed Models,Stinger 21 pic - 8/22/2004 7:57:43 AM   
Evil Homer


 

Posts: 319
Joined: 9/27/2003
From: CubbingtonWarwickshire, UNITED KINGDOM
Status: offline 		Very nice plane, been trying to trim down some of my fleet at the moment to make room for more, this is one which is pretty high on the light, i want to use a Picco 21 FISE with tuned pipe on, alternatively an MVVS, see what happens

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RE: Speed Models,Stinger 21 pic - 8/22/2004 10:26:38 AM   
der_steuermann



Posts: 238
Joined: 11/7/2002
From: Stolberg, GERMANY
Status: offline
To obtain good speed numbers with that combo here's a suggestion:

MACS side exhaust header (small radius) # 2340
MACS non-muffled tuned pipe # 1130
APC prop 7.2X8.6 # LP07286
pipe length (from glow plug to middle of widest part of the pipe) = 10.6"

The 32sx engine will swing that 7.2X8.6 prop with at least 20K


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       Post #: 6

RE: Speed Models,Stinger 21 pic - 8/22/2004 4:38:02 PM   
mumblety-peg


 

Posts: 310
Joined: 3/14/2002
From: Alameda, CA, USA
Status: offline 		20K? That's a pitch spped of, what, about 150 mph? I have a 32fx just looking for a home. I'll be watching this thread with much interest.

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RE: Speed Models,Stinger 21 pic - 8/22/2004 5:05:06 PM   
der_steuermann



Posts: 238
Joined: 11/7/2002
From: Stolberg, GERMANY
Status: offline
Yes, with a pitch of 8.6" and 20K in flight that particular airframe will go at least 140 mph...

But as mentioned above, you have to choose a very effective tuned pipe setup.

P.S. Same applies to the Webra .32 engine (non-ringed version).


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RE: Speed Models,Stinger 21 pic - 8/23/2004 2:21:27 AM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		der steuermann, thanks for the info.Do you have any numbers if i use a Mac quiet pipe?.Also looking for some prop combinations and pipe length(quiet pipe)for a Rossi 40 that is in my Doddger Quickie 500.Regards Chris.

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RE: Speed Models,Stinger 21 pic - 8/23/2004 5:14:02 AM   
Rudeboy



Posts: 3256
Joined: 12/9/2002
From: Bejing, BELGIUM
Status: offline 		Those Stingers sure do look nice...

I've got a Stinger 40 in the works. Powered by the engine pictured below... should be a real screamer! Timed for 23-24K rpm...

What does that 32 turn on a 7x6W? Seems like an awfully small prop... we use that prop on a .21 Irvine... in Club 20 pylon racing... and it screams!

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...I think it needs more power...

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RE: Speed Models,Stinger 21 pic - 8/23/2004 7:49:10 AM   
StregaFlyer


 

Posts: 53
Joined: 7/28/2004
From: South Beloit, IL, USA
Status: offline 		Also looking for some prop combinations and pipe length(quiet pipe)for a Rossi 40 that is in my Doddger Quickie 500.Regards Chris.



Try a APC Pylon Prop 8.75 - 8.0 or 8.75 x 8.25 on that Rossi, you should get some good RPM's out of that...

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RE: Speed Models,Stinger 21 pic - 8/23/2004 8:48:19 AM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		Those Jett engines are a work of art,very nice!.Looking forward to seeing some pics when you get started Rudeboy.That APC 7x6Wide is what Look of Speed Models used on his Stinger 21 with an OS 32.You can see it in action in a short video on his web site.I agree, it is a small prop.I hope my OS likes some revs.Chris.

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RE: Speed Models,Stinger 21 pic - 8/23/2004 9:21:28 PM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		This is a muffler adapter i made, so the muffler isnt hangin so far out into the wind, besides it looks ugly.This piece is made with a hack saw, file and a drill, so anyone can make one.The adapter is snug fitted over the exhaust on the engine and then it is drilled and pinned with a steel rod.

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RE: Speed Models,Stinger 21 pic - 8/24/2004 8:13:01 PM   
Zeroman


 

Posts: 121
Joined: 6/13/2003
From: Vancouver Island, BC, CANADA
Status: offline 		Completed 7oz. fuel tank, 44 grams.Wing has Hitecs Digital Wing Servos installed.These are awesome little servos,41.66oz@4.8V and weigh a mear 24g.For the elevator i have a Digital HS-5245MG.Final assembly this weekend, should be ready for our Need for Speed event Sept.25.Chris.

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RE: Speed Models,Stinger 21 pic - 8/24/2004 8:21:28 PM   
daven



Posts: 6897
Joined: 12/7/2001
From: Andover, MN, USA
Status: online 		Looks good.

I would suggest picking up a 4 oz Tettra Bladder tank.

Dave

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RE: Speed Models,Stinger 21 pic - 8/24/2004 8:22:28 PM   
Razor-RCU