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Guillow F6F kit #503 (Read 783 times)
Reply #33 - Jan 14th, 2020 at 2:11pm

bigrip74   Offline
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Thanks Mike and KF. I remember the wing span rule. I was just thinking of the heavy kit wood.

4X reread KittyFritters post re: how to size the prop using the airplanes wingspan and then dividing by 3.

Bob
 

IF IT AINT BROKE DONT FIX IT!
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Reply #32 - Jan 14th, 2020 at 11:41am
4X   Ex Member

 
I have a Peck 6” prop (black), Guillows 5.75” (red), and another 7” prop (beyond the kit prop).
Which one would you recommend to try first?
I also have 1/8”, 1/4”, and 3/16” rubber, which should I use for this model and what size loop (or more loops) would you recommend?
(It’s only my second model, the first one is a Guillows Aeronca Champ, and I’ve never flown them...)
 
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Reply #31 - Jan 13th, 2020 at 9:27pm

Kittyfritters   Offline
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California

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bigrip74 wrote on Jan 13th, 2020 at 12:51pm:
Finally attached the canopy, but have not done anything to the frame work.

The kit comes with that 4 3/4" guillows prop. I think it will need either a 6" or 7" prop.

photo 3 is with a 7"
photo 4 is a 6"


The general rule in a rubber powered model is 1/3 the wingspan for conventional models.  (Super light, indoor models with very slow turning props  are a completely different dynamic.)  That 7", Chinese prop weighs quite a bit and will act more like a flywheel than a prop on anything with less than a 21" wing span.  Most 500 series kits will fly on a 5-1/4 to 6" prop.  Use your gram scale to weigh the props you have.  Sometimes you can improve the trim simply by changing props.

There is quite a variation in weight between the different brands of plastic propellers.  My simplified kits all use a 6" prop but I supply Pecks with the Plain Plane and Satellite and an EB prop with the Double Trouble because it needs the nose weight.

KF

 

Qua sublata omnia praecepta legis
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Reply #30 - Jan 13th, 2020 at 2:33pm

MKelly   Offline
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Helotes, TX

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On ~17" span I'd go with the 6-incher.  The Guillows Skyraider and Typhoon flew very well for me on 6" Peck props.  Looks great Bob!

Mike
 
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Reply #29 - Jan 13th, 2020 at 12:51pm

bigrip74   Offline
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What did l do this time!
Austin, Texas

Posts: 6209
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Finally attached the canopy, but have not done anything to the frame work.

The kit comes with that 4 3/4" guillows prop. I think it will need either a 6" or 7" prop.

photo 3 is with a 7"
photo 4 is a 6"
 

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IF IT AINT BROKE DONT FIX IT!
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Reply #28 - Jan 12th, 2020 at 5:32pm

Sky9pilot   Offline
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Great job Bob...I've gotta build me another F6F Smiley
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #27 - Jan 12th, 2020 at 2:42pm

bigrip74   Offline
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What did l do this time!
Austin, Texas

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Thanks guys for the kind words. The kit is laser cut and just builds it self.

Mike, I will use a 6" Chinese prop.

bopb
 

IF IT AINT BROKE DONT FIX IT!
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Reply #26 - Jan 12th, 2020 at 11:13am

New Builder   Online
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Amherstburg, Ontario, Canada

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Bob - You were moving right along, 7 days from laying the first stick to waiting on the canopy and then flying. Anxious to see a flight report. Any idea about the propeller and motor size?
Mike
 

"Vision is the art of seeing things unseen." James Joyce
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Reply #25 - Jan 11th, 2020 at 10:32pm

93rdLiberator   Offline
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Looking smooth!  That Guillows Hellcat always flew great even using the kit print "wood".  Yours will be a fantastic flyer...Dan
 
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Reply #24 - Jan 11th, 2020 at 8:05pm

Don McLellan   Online
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Stick & Tissue

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Nice work Bob!  The dark tissue certainly does hide the burn marks from laser cutting.
 
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Reply #23 - Jan 11th, 2020 at 6:54pm

bigrip74   Offline
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What did l do this time!
Austin, Texas

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Tissue is doped and tissue cals are waiting to dry and then doped. Canopy next then off to the field.
 

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IF IT AINT BROKE DONT FIX IT!
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Reply #22 - Jan 10th, 2020 at 5:57pm

bigrip74   Offline
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Since the fuselage is more of a barrel I had to attach the tissue in strips to keep the wrinkling to a minimum.
 

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IF IT AINT BROKE DONT FIX IT!
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Reply #21 - Jan 9th, 2020 at 2:10pm

bigrip74   Offline
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What did l do this time!
Austin, Texas

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While waiting on some
NAVY BLUE
tissue to arrive. I worked on the removable nose bearing.
 

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IF IT AINT BROKE DONT FIX IT!
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Reply #20 - Jan 7th, 2020 at 11:15pm

bigrip74   Offline
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What did l do this time!
Austin, Texas

Posts: 6209
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I see that you did yours down and dirty. I did not use all of that wood for the LG, I don't like landing gear. It usually breaks, so there is some weight savings there.

Bob
 

IF IT AINT BROKE DONT FIX IT!
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Reply #19 - Jan 7th, 2020 at 11:04pm
4X   Ex Member

 
bigrip74 wrote on Jan 7th, 2020 at 9:29pm:
Erez, thanks for the tips I will look to see if I am able to shave off some wood as your photos show.

an F6F video.
https://www.youtube.com/watch?v=N79xWycnKPE


Bob


I also thinned the wing outer panel ribs, and made the landing gear removable for flight, that not only saves a lot of weight but also reduces the chance of damage ‘on arrival’.


 
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