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Motoring the Firebaby

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Post  rsv1cox Sun Dec 23, 2018 8:57 am

I have a couple of those "pipe bomb" engines, one with some sort of NVA attachment (upper right) on the back. The Testors McCoy would be a contender for the Firebaby if the fuel feed was on the other side. A mounted pipe bomb would not do for this application.

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Nobody loves the Cox Pee Wee for power?

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Post  ticomareado Sun Dec 23, 2018 10:33 am

Are you going to stiffen the foam board fuselage?
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Post  NEW222 Sun Dec 23, 2018 10:34 am

Ok. Let's see the PeeWee .020 mounted up. I have one but have not yet run it. I have to but a propeller for it before I can run it. Do you feel it would haul the plane around?
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Post  ticomareado Sun Dec 23, 2018 10:45 am

22' to 25' lines-- perfect backyard flyer with .020.
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Post  rsv1cox Sun Dec 23, 2018 12:58 pm

@ticomareado wrote:Are you going to stiffen the foam board fuselage?

No, Living on the edge.  

The wing and horizontal stab will have balsa fillets top and bottom.  Probably the only foam board fuse that I will make because you can't airfoil the stuff.   Rest will be 3/16" balsa.

Using an original wing as a guide I wet the wing and added camber and dihedral but it didn't last, just a bit on the tips.  Might use a steamer next time or go back and re-read you instructions.

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I think a .020 would haul it faster than I could keep up.
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Post  GallopingGhostler Mon Dec 24, 2018 5:11 pm

If interested in a Wen Mac without the Rotomatic starter, here's an early model on E-Bay, next to nothing but is missing needle valve.

E-Bay# 233063542077, 1960's Wen Mac MK III 049 Model Airplane Engine Used

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Post  chevyiron420 Sun Jan 06, 2019 7:32 pm

Im not sure i understand the problem. Here is one of mine, and it runs,flies great.

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Post  NEW222 Sun Jan 06, 2019 7:39 pm

Nice looking plane there. Is that just varnished balsa, or does it have some sort of color added?
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Post  chevyiron420 Sun Jan 06, 2019 8:02 pm

Thank you, Its minwax poly. I am a lousy airplane painter. Smile








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Post  rsv1cox Mon Jan 07, 2019 8:08 am

@chevyiron420 wrote:Thank you, Its minwax poly. I am a lousy airplane painter


Maybe, but a great model builder.  That sure went together well.

I like the balance between the lead-out guides.

Congratulations....

Bob
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Post  getback Mon Jan 07, 2019 9:48 am

That is Nice , how much wingtip weight do you have since the engine is mounted inboard ( something you don't see much of) ?
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Post  ticomareado Mon Jan 07, 2019 10:04 am

I'm impressed with the neat beam mount job. That's the most aggravating thing about any Wen-Mac/Testor-Mac.
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Post  chevyiron420 Mon Jan 07, 2019 1:34 pm

@getback wrote:That is Nice , how much wingtip weight do you have since the engine is mounted inboard ( something you don't see much of) ?
Thanks Eric, it has a quarter under the right wing tip.
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Post  chevyiron420 Mon Jan 07, 2019 1:55 pm

@ticomareado wrote:I'm impressed with the neat beam mount job. That's the most aggravating thing about any Wen-Mac/Testor-Mac.
Thank you sir. You can also mount like my baby ringmaster, but be warned that if you nose it in hard the bottom mounting ear will break, taking the gasket sealing surface with it. This setup also runs and flies very well.
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