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Grummam F3F-1, G-22 Gulfhawk - 5/11/2008 9:25:33 PM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Anyone ever get their F3F-1 projects started or completed?

Surprisingly, there's not that much interest in this particular airplane?

Or is there?

Charles
       Post #: 1

RE: Grummam F3F-1, G-22 Gulfhawk - 5/12/2008 3:26:46 PM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		The Gulfhawk I'm designing is approx. 1/5 scale. This would make the top wing a tad under 70". The Fuse is like a Congo Drum, perfect for the radial engines that are now available and reliable.

I've been working on these drawings for ten years.

I've had every plan available on this airplane, including actual factory drawings of the gear.

I have stacks of Kinko's enlargments and a dozen drafts of verious areas of this model to improve construction and strength. I've cut through two Aristo craft kits to redo many fuselage parts. I still have one clean kit that may be worth the build with an airfoil change.

Unfortunately, I've been waiting for someone esle to do the gear and that hasn't happened yet.

Robart, help me here!

So, I've decided to make my own gear, and extras.

This means I'll have to shift my attention and what little time I have to the designing of the gear. I'll loose at least a year because of this.

It's unfortunate that this Great bi-plane and Warbird doesn't command the attention it should? I can't understand why not?

Years ago there was a modeler who attempted this aircraft at 1/4 scale. I purchased his plans. Unfortunately, they weren't helpful because of his type of construction methods. His fuselage actially came apart in two sections. His model was really big! As many are.

I'm a small person. I have difficulty with models twice my size and greater.

A 1/5 scale F3F-1 is, in my opinion, perfect. It won't brake the wallet and you can build two or three at a time. Like I expect to do.

BTW. Yes, I gave those 1/4 scale plans up. Be interesting to know if the modeler ever started or finished his project?

So, with all of this said and no one to read it, I'll just continue to respond to myself. That'll be a first.

Keep up the good work charles, fine job! Kudos and all that Jazz!

Charles

www.cfcgraphics.com





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< Message edited by Avaiojet -- 5/12/2008 10:40:13 PM >

(in reply to Avaiojet)
       Post #: 2

RE: Grummam F3F-1, G-22 Gulfhawk - 5/15/2008 3:41:59 AM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Well,

I was in my, no windows, basement looking over a lifetime of collected drawings and plans of this model today. Some as far back as twenty years. Hard to believe but true.

I spent part of my night at kinko's attempting to get the printing at my scale. That would be 1/5 for the retracts for this Gulfhawk.

10 sheets were printed until the clerk finally acheived what I was asking of him. He just couldn't get it.

No, I didn't have to pay for the ten sheets because they weren'r accurate.

I wanted to be within a 1/32 of an inch. Turns out he did better than that.

My gear drawings are now at 1/5 scale to +/- 1/64 of an inch! I'm excited.

The next task is to determine the actual weight of the model? The weight will lend some insite as to the meterial I'll use to construct the gear.

Steel, aluminum, or brass. Possibly a combination of all three.

Now to find a hobby shop with a great selection of this kind of tubular HDWE.

Charles







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< Message edited by Avaiojet -- 5/15/2008 3:43:41 AM >

(in reply to Avaiojet)
       Post #: 3

RE: Grummam F3F-1, G-22 Gulfhawk - 5/15/2008 3:55:34 AM   
CoosBayLumber


 

Posts: 2857
Joined: 1/20/2002
From: San Bernardino Calif
Status: offline 		I had read that the wing of the Gulfhawk was different then the military F3F. The wings were more like the F2F instead. Was article in Wings or Airpower on both.

Wm.


_____________________________

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Thousands of Laser Cut parts, thousands

(in reply to Avaiojet)
       Post #: 4

RE: Grummam F3F-1, G-22 Gulfhawk - 5/15/2008 9:01:36 PM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Wm,

The span on the G22 is less than the span of the F3F-1.

I don't know exactly how much, but I have to dig up my plan resources and find out? I'm building both models.

Charles

(in reply to CoosBayLumber)
       Post #: 5

RE: Grummam F3F-1, G-22 Gulfhawk - 5/16/2008 2:31:37 AM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Wm,

About that wing difference? I'm going to look for someone to lazer cut my balsa ribs and plywood ribs. Once this is accomplished, I'll take a look at my scale drawings and determine exactly how many ribs I need.

Anyone know someone cutting ribs with a lazer?

I'll Post in the building Forum.

Yesterday evening I paid a visit to Kinkos. I had my gear drawings reduced to 1/5 scale. I now have actual scale drawings of the landing gear.

Today I worked, as usual, and I just got home from putting a clutch kit in a TR-6. It's 9:30.

Tonight the Gulfhawk is just a thought.

Charles


(in reply to Avaiojet)
       Post #: 6

RE: Grummam F3F-1, G-22 Gulfhawk - 5/16/2008 3:47:41 AM   
dbarrym



Posts: 1109
Joined: 10/21/2003
From: Carlsbad, CA, USA
Status: online 		Some years ago (maybe 15-20 years ago, Flying Models or MAN magazine had a construction article on a 72" Wildcat that included plans for working retracts. The layout and geometry was very similar to the Gulfhawk...I'd assume the full scale designs had some very common lineage. I saw one of these models close up and the gear worked well.

The plans are probably still available, worth checking to see, perhaps they could be adapted for your project. Worth the $20 or so the plans likely cost.

I've always wanted to build a model of the Gulfhawk in Al Williams' paint scheme, as displayed at the NASM. Someday, too many projects in line now.

Barry



< Message edited by dbarrym -- 5/16/2008 3:48:30 AM >

(in reply to Avaiojet)
       Post #: 7

RE: Grummam F3F-1, G-22 Gulfhawk - 5/16/2008 4:06:24 AM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Barry,

Thanks for responding and thanks for that information.

I have a set of the retract plans to that model. I also have an explanation booklet. The geometry is similar and they do resemble each other but they are different.

Charles



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< Message edited by Avaiojet -- 5/16/2008 4:08:31 AM >

(in reply to dbarrym)
       Post #: 8

RE: Grummam F3F-1, G-22 Gulfhawk - 5/22/2008 1:55:27 PM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		I'm looking into wheels.

I noticed that some makers of wheels use the Dubro tire and machine aluminum hubs.

Because my wheel calls for a painted smooth hub, it would be pointless to purchase a tire with an aluminum hub.

Besides. I checked and there's no loss of weight, in fact, most 5.5" tires with aluminum hubs weigh a tad more than the plastic hub 5.5" Dubro's.

So, I'll use my 5.5" air filled Cubros with hubs that I can make myself. I'll also need tiny hex bolt heads for the perimeter of the hub. There's a few attachment bolts that hold the hub on.

Makes it look more realistic and interesting.

My next task is aluminum stock for the three sets of aluminum retract gear. I'm working on that now.

Charles

(in reply to Avaiojet)
       Post #: 9

RE: Grummam F3F-1, G-22 Gulfhawk - 5/22/2008 3:08:46 PM   
CoosBayLumber


 

Posts: 2857
Joined: 1/20/2002
From: San Bernardino Calif
Status: offline 		I only have part of it, by way back when there was (I think) a three part article about the F2F and the F3F, including the Gulfhawk, posted in some magazine of the 1950's. The article has mainly to show off some William Wylam Masterplan drawings that became available. It pointed out the differences in the models. Fuselages were done on one plan, wings on another, etc.

But as of 4 years ago or so, KAPA printed a big list of what was then availble direct from Author now living in vicinity of Santa Barbara Calif. The same old, same old, was noted there, including the engine. You may be looking for the 12-39 series of four.

You can use the Aristo kit, as an example only. Musciano told me he did four drawings of it, all four being different, and none of which resembled the real one.


Wm.


_____________________________

www.mybloo.com/coosbay/laser/laser.html
Thousands of Laser Cut parts, thousands

(in reply to Avaiojet)
       Post #: 10

RE: Grummam F3F-1, G-22 Gulfhawk - 5/22/2008 6:38:54 PM   
Avaiojet


 

Posts: 145
Joined: 9/25/2002
From: East Greenwich, RI, RI, USA
Status: offline 		Wm,

My guess is I have most if not all of the drawings on the F3F-1 and the G22. Including model plans. Not to mention actual plans of the retracts.

I also have spent the time comparing these drawings.

I don't care if the model is 100% "on the money" scale.

Based on my research, I know I'll have a scale outline that's 98%. I can live with this.

What is KAPA?

Do you lazer cut ribs?

Charles





(in reply to CoosBayLumber)
       Post #: 11

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