Foamy Spruce Gosling 1.0

[FoamyDM]

FoamyDM submitted a new resource:

Foamy Spruce Gosling - Build your own Spruce Goose - Micro scale 1:75

This Football field wing-span plane had held the world record as the larges plane
the Movie the Aviator documented the life of its creator Howard Hughes... the H-4 Hercules mockling called the Spruce Goose, a name it will be forever known by:
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I have built this craft and know that it will fly.. so I submit this to all who are brave/foolish (there is a fine line) enough to build it "micro" 1:75 scale.
at this scale 3" propeller micro quad...

Read more about this resource...

 

[Apis]

Why do you say, "Good luck to all who attempt this." in the description for this build?

 

[FoamyDM]

I say that because this plane is an undertaking in wiring alone, let along the 8 motors, and escs. The construction of the plane is relatively simple and I wish only good luck to those who attempt it, I would love to see more people attempting it.

Also cost: this plane is at bare bones a $120 investment ($80 motors - $32 esc, +2 power dist boards, and at least 1 big battery (I assume everyone has 1), if not 2. It's worth it, just saying...

 

[The Fopster]

Could maybe fly with four working motors and four dummy motors to cut the cost? Enough power, do you think?

 

[Apis]

Could maybe fly with four working motors and four dummy motors to cut the cost? Enough power, do you think?

Would save a ton of weight and trouble.

 

[FoamyDM]

Could maybe fly with four working motors and four dummy motors to cut the cost? Enough power, do you think?

Would save a ton of weight and trouble.

Based on the throttle test... probably. But how much fun would it be on only 4, really. Once I get this tested, I will pull 2 motors and see how it does on 4.

 

[Apis]

Brushed motors can be run on the same esc. Maybe the key here is too use 8 brushed quad motors.

Either all 8 on one esc, or 4 and 4 on seperate esc to allow for differental thrust.

 

[FoamyDM]

Brushed motors can be run on the same esc. Maybe the key here is too use 8 brushed quad motors.

Either all 8 on one esc, or 4 and 4 on seperate esc to allow for differental thrust.

That is a solution and I have a project that will use 20 motors, and that is exactly how I will be tackling it. I hope to have it ready by Sunday. I would love to maiden it.

 

[Apis]

That is a solution and I have a project that will use 20 motors, and that is exactly how I will be tackling it. I hope to have it ready by Sunday. I would love to maiden it.

Glad to be of help.

Any chance the spruce gosling plans come in a form factor compatible with a laser cutter?

 

[FoamyDM]

Any chance the spruce gosling plans come in a form factor compatible with a laser cutter?

They are done up like standard FliteTest Plans. PDF for easy printing an portability. black 100% cut, red 50%, blue 10%, green a reference. hatches for Beveling, foam removal, and paper removal. Am I missing something?

 

[FoamyDM]

a form factor compatible with a laser cutter?

I read this backwards. you mean .dxf? possibly on a PM.

 

[Apis]

I read this backwards. you mean .dxf? possibly on a PM.

Ok, so I am a newbie to building flitetest planes, so I was hoping to get these plans cut by a laser cutter in MakerFoam to avoid cutting the bulk of the pieces myself. I have access to a public library with a large laser cutter . Alternately, if you have access to one, Id be game to buy a "kit" off of you as well.

You make so many amazing designs I actually kinda suprised that you dont sell precut kits as well.

 

[FoamyDM]

First off, thank you. I'm flattered. If they all flew half as good as they turned out, I might consider selling them as kits .

I don't have a laser cutter myself. I'm not entirely aware of what you need to get a good cut file. Closed polylines? Although a needle cutter is in a box. I have worked in CAD softwares in some manner most of my adult life. So drawing up plans is a non-issue for me.

Regarding kits... I might someday, but right now I don't have the time and patience to dedicate to it. It is a great deal of social media, and customer service.

My time is at a premium right now. I am a single dad of 2 grades schoolers, a cubmaster, the scout district STEM guy, I just started the Aviation RC Noob podcast. And I design and build like a fool. Plus I run 2 DND campaigns, and play in another. Disc golf when the weather works out... So busy.

 

[FoamyDM]

This plane is pretty simple though to build.

 

[FlyerInStyle]

can it work for someone who doesn't really know how to fly planes? also, could it work off of 8 whoop motors? brushed. I want to build it at flitefest, but it might be too expensive to get 8 pph motors.

 

[FoamyDM]

can it work for someone who doesn't really know how to fly planes? also, could it work off of 8 whoop motors? brushed. I want to build it at flitefest, but it might be too expensive to get 8 pph motors.

It could work on 2S DC motors. It might even be easier. or you just use two and the rest are dummy motors. Free spinning

 

[FlyerInStyle]

It could work on 2S DC motors. It might even be easier. or you just use two and the rest are dummy motors. Free spinning

so it could run on just 2 gremlin motors? also, as I mentioned before, is it stable and easy to fly? I love your designs and am looking for a stable one that looks cool and can be flown by a begginner to fly at FF also do you know if they sell those 2s dc motors at FF? I am planning to build this there, and I am leaving early on sunday. do you know if I will be able ot make hte motor mounts at FF, cause I cant bring wood or a dremel.
I also just came up with another idea? could I make this with a power pack a twin? and enlarge the first motor mount? it iwll be a little unscale.
anyways, which one of your designs, if not this one would you reccommend?

 

[FoamyDM]

There is 270g of thrust per motor the AUW is around 850g (I thought. with 2.12kg of thrust on 3s.)
two motors gives enough for a ~1:1 thrust ratio.

 

[JasonK]

your getting 270g thrust out of a gremlin motor without overheating it? please do tell how your pulling that off. (or is this some crossing thoughts between questions and what your actually doing).

 

[FoamyDM]

no its the 1408 3" quad motor identified in the thread here. on 3s 12A is near the limit, as 4S is 15A.