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Author Topic: Prop for Royal Rodent  (Read 1933 times)

Offline Dave Nyce

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Prop for Royal Rodent
« on: October 18, 2020, 03:34:39 PM »
Hi.  Am getting close to having the Royal Rodent plane put together.  It will use a McCoy .35 Red Head engine.  What prop would be good for this plane with this engine?

Thanks

Dave
Dave Nyce   New Bern, NC 
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Offline bill bischoff

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Re: Prop for Royal Rodent
« Reply #1 on: October 18, 2020, 05:38:03 PM »
a 9x7 or 8x8 would be worth a try. Remember, the engine is happy with a typical 10x6, so whatever you use should put a similar load on the engine. Be sure to post a picture of your model!

Bill Bischoff

Offline bob whitney

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Re: Prop for Royal Rodent
« Reply #2 on: October 18, 2020, 06:36:54 PM »
find an old 8/10 Power Prop that should hold the R's down or just put a 9/7 on it and enjoy flying it
rad racer

Offline Dave Nyce

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Re: Prop for Royal Rodent
« Reply #3 on: October 25, 2020, 03:27:26 PM »
OK.  Thanks.  I ordered some 8x8 props. 

I installed the recommended rectangular tank from the plan.  But there is nothing on the plan for preventing fuel/oil from entering the fuselage.  Is a firewall usually installed between the engine and fuel tank?  Or is the metal fuse bottom considered ok for oil to go?  I drilled a small hole aft in the fuse bottom to allow oil to drip out.
Dave Nyce   New Bern, NC 
AMA: L356

Offline Dave Nyce

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Re: Does Royal Rodent need firewall?
« Reply #4 on: October 25, 2020, 03:50:43 PM »
Does the Royal Rodent need a firewall to prevent fuel/oil from entering fuselage?  No firewall shown on plan.  This is what I have so far (see photos)
Dave Nyce   New Bern, NC 
AMA: L356

Offline Bob Heywood

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Re: Does Royal Rodent need firewall?
« Reply #5 on: October 25, 2020, 06:09:12 PM »
Does the Royal Rodent need a firewall to prevent fuel/oil from entering fuselage?  No firewall shown on plan.  This is what I have so far (see photos)

The internal surfaces of the top needs to be fuelproofed. These planes never had a firewall.
"Clockwise Forever..."

Offline Dave Nyce

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Re: Prop for Royal Rodent
« Reply #6 on: October 26, 2020, 09:46:08 AM »
Thanks!

Dave
Dave Nyce   New Bern, NC 
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Offline Dave Nyce

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Re: Prop for Royal Rodent
« Reply #7 on: November 07, 2020, 09:40:11 AM »
Finished the Royal Rodent.  Didn't like not having a firewall.  So mounted a partial firewall coming from the pan, and a partial firewall going down from the fuselage.  When together, they slide past one another, and should reduce the amount of fuel/oil that could get into the aft fuselage. 
Dave Nyce   New Bern, NC 
AMA: L356

Offline Bob Heywood

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Re: Prop for Royal Rodent
« Reply #8 on: November 07, 2020, 02:45:58 PM »
Let 'er rip...!
"Clockwise Forever..."


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