F2G for .15 carrier

duke.johnson wrote:Put a Cox Conquest in it! It'll go faster.

Believe me, if I could spend money that fast it would have a conquest!

Jim

Do Conquests idle and throttle well?

Cool model, I love F2Gs. There is one at Stellar Air Park, Cook Cleland's Heinz 57 racer. What a ship.
Chris...

I'd imagine the Conquest is the best chose for .15 carrier. Mine was great with a perry carb. My favorite carrier plane in a corsiar with an OS .40FP, for a local carrier contest. I'm building a Mustang for a replacement.

stuntflyr wrote:Do Conquests idle and throttle well?

Cool model, I love F2Gs. There is one at Stellar Air Park, Cook Cleland's Heinz 57 racer. What a ship.
Chris...

Chris,

This is my first carrier model so I'm no expert, but it's my understanding that a Nelson or a conquest are the engines you want.

Jim

Jim, What type of set-up are you using for the assumed servo-driven throttle? I believe that the 3-line bell-cranks haven't been widely used for some time now. Does someone produce a custom single-channel system, specific to this application? Having a combination handle-unit with a trigger would be cool.

Roddie,

Going old school three line. I think it's still pretty common in carrier.

Jim

JPvelo wrote:Roddie,

Going old school three line. I think it's still pretty common in carrier.

Jim

Very cool Jim! I misplaced my 3-line bellcrank.. but have the J. Roberts Flight Control Handle NIB.



I know I have the "plane-unit" somewhere. Carrier is an event that's fascinated me since I saw it for the first time at the 92 AMA Nats in Chicoppee, MA.

Eric,

They're are contest in Tucson in September and January, Phoenix has a contest  in October.

Check this out:

https://youtu.be/sC96_QWJfJI

Jim

Notice the outward yaw angle of these models. This Vid is a good account of what a typical carrier flight consists of. Check out the lead-out rake on the 2nd airplane doing it's slow passes.. (clearly visible from 5:58 on the counter)

https://www.youtube.com/watch?v=WuurRZCl8rk



EDIT: It looks to me, like the 2nd model's lead-out guide is an angled rail, allowing the lead-outs to rake-back with a nose-high attitude.

Looks like Roddie slipped one in during my picture searching.
Thanks for those links. I copied the Brodak one for reference. My wife loves to watch carrier at the contests, she divides her time between Carrier and Combat, which are next to each other at Huntersville.

The Carrier planes must be incredibly well built, with meticulous attention to detail, or they will fail to perform, needless to say, repetitively. The control systems are fascinating. Did you know they have a way to   disconnect the leadout guide from the wing during the slow approach so it prop hangs straight from the bellcrank to the handle? There are lots of things I have yet to learn about them. It's apparently a fun relaxing sport.

And when they decide where to place the deck, every one just has to hope the wind is blowing in a good direction when it's their turn. Ours is flat on the ground instead of on the buckets like in the video. I have some pictures of Carrier from October 2013 at Huntersville. I thought I had video too, bit it's hiding

Here's Sarah Davis and David Smith, now Sarah and David Smith... and Wesley Smith too:
David uses the angle to measure Sara's angle while slow hanging, and she must stay within specified angles.


Here are Jo and Everett Shoemaker. I'm not sure if that's a signal by Jo or not, but they do have to give a landing signal. If they Bolter, they can go around again, losing points, I presume:

roddie wrote:Notice the outward yaw angle of these models. This Vid is a good account of what a typical carrier flight consists of. Check out the lead-out rake on the 2nd airplane doing it's slow passes.. (clearly visible from 5:58 on the counter)

https://www.youtube.com/watch?v=WuurRZCl8rk

EDIT: It looks to me, like the 2nd model's lead-out guide is an angled rail, allowing the lead-outs to rake-back with a nose-high attitude.

That does not look easy to do. When they drop the hook, I think the leadout guide disconnects completely. It just slides out of the way letting the plane hang directly from the bellcrank... I think.
Rusty

getback wrote:That does look like a lot of fun for sure the UK do it up with the strip and back ground appearance , I think that is really neat and puts things in prospection. By the time I got back to the forum I had seen the guy Roddie was talking about fly , man that thing was hauling it at first  Where do you get those throttle control handles ?  

Unless rules have changed.. I believe that competition requires an elevated deck to land on. It should IMHO. Yea.. these models are mechanical marvels. They're at their ragged edges of speed vs. stall. I can't begin to imagine the trimming involved.

The handles are more common than I thought. Perhaps they're being made again?

Yup..

http://brodak.com/control-line-parts/handles/c-19-yellow-handle.html

http://brodak.com/control-line-parts/throttle-control-kit/b25-3-line-hardware-package.html

Both fliers in the Detroit 2013 vid I posted, are using this style handle. Brodak's looks to be an exact J. Roberts copy. Maybe I'm "cheap".. but Brodak's complete set-up is expensive. Another $100 bucks.. oh well. The bell-crank unit is the must-have. How hard could it be to replicate the handle's function in a homemade one?

Jim, are you using a similar bellcrank to this one?

Brodak bell crank

Roddie,

Yes, I'll be using this one:
http://brodak.com/control-line-parts/bellcranks/brodak-c-22-2.html

JPvelo wrote:Roddie,

Yes, I'll be using this one:
http://brodak.com/control-line-parts/bellcranks/brodak-c-22-2.html

It would seem that the fuse-slot above the wing accommodates the bellcrank mount/position.. and an outboard elevator linkage?

Are you scratch-building from plans? I love the lines.. kinda' reminds me of a bigger version of your reed-speed model!

roddie wrote:

JPvelo wrote:Roddie,

Yes, I'll be using this one:
http://brodak.com/control-line-parts/bellcranks/brodak-c-22-2.html

It would seem that the fuse-slot above the wing accommodates the bellcrank mount/position.. and an outboard elevator  linkage?

Are you scratch-building from plans? I love the lines.. kinda' reminds me of a bigger version of your reed-speed model!

Roddie,

The elevator pushrod will be inboard, as will be the hook and release. The release will operate off of the pushrod or the elevator horn. I'm not sure yet as this is being designed and engineered on the fly.

I'm scratch building from three view drawings and borrowing the airfoil section and some fuselage construction techniques from this plan:

http://carrier-deck.com/wp-content/uploads/Bf109T_Conley_Bf109T_15size_100pctv2_70cmSpan.jpg

I'm using the wing construction technique outlined in this plan:

http://carrier-deck.com/wp-content/uploads/F2G1_Conley_40size_100pct_102cmSpan.pdf

Tomorrow I can post a photo of the three views I'm using if your interested.

Jim

That plane of yours is looking great Jim.

That is a beautiful build. You always build beautiful planes.

Cant wait to see it progress.

Theo

JPvelo wrote:

Roddie,

The elevator pushrod will be inboard, as will be the hook and release. The release will operate off of the pushrod or the elevator horn. I'm not sure yet as this is being designed and engineered on the fly.

I'm scratch building from three view drawings and borrowing the airfoil section and some fuselage construction techniques from this plan:

http://carrier-deck.com/wp-content/uploads/Bf109T_Conley_Bf109T_15size_100pctv2_70cmSpan.jpg

I'm using the wing construction technique outlined in this plan:

http://carrier-deck.com/wp-content/uploads/F2G1_Conley_40size_100pct_102cmSpan.pdf

Tomorrow I can post a photo of the three views I'm using if your interested.

Jim

Thanks Jim, yes I'd like to see the 3-view if you get a chance. These models are extremely interesting to me.

Roddie,

Here's what passes for a plan at my house. Apparently I threw out the wing pattern when I thought I was done with it. Stupid. I'm not happy with the wing tips and now I have no pattern for new ones.

I wouldn't sweat it. What's wrong with the wing-tips you made? Did you change the design to accommodate the lead-out guide possibly? I'll bet you've got new ones built already.. or at least drawn-out.

roddie wrote:I wouldn't sweat it. What's wrong with the wing-tips you made? Did you change the design to accommodate the lead-out guide possibly? I'll bet you've got new ones built already.. or at least drawn-out.

They are way to flimsy with the grain running chord wise. I am planning on two piece tips with the grain butted together at 45. I don't know if that's a good description, I'll post a photo when I do it.

Jim

Here's how I went with wing tips. They are 1/8 hard balsa. I will cap them 1/4 soft balsa from just behind the high point of the wing forward. I want to avoid "starburst of formers" wingtip look.

Jim