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Happy Zoomslot Saucer

Post  rdw777 Sat Aug 05, 2023 7:02 am

By Roy Clough JR…. The beginnings of one anyway…
Bee power…. Three channel RC….

https://outerzone.co.uk/plan_details.asp?ID=13286

Zoomslot Saucer  545fc710

Grainy photo to prove that they exist….

Zoomslot Saucer  14a0c310
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Post  Ken Cook Sat Aug 05, 2023 11:54 am

Roy happens to be my favorite designer. He has many saucer designs and space age stuff. As a kid I would marvel at this stuff when I would see it. It didn't matter if it flew, just seeing it was just the coolest. My dad would always build the crazy stuff and I thought it was just too cool . One of my club members just built his martian space ship for free flight. What a blast to see. Paul Del Gatto is my next favorite.
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Post  rsv1cox Sat Aug 05, 2023 1:54 pm

Radical Robert.

Contributes to the Flying Saucer sightings of late. Big hearings currently held on Capital Hill by men reporting sightings. I will believe it when little green people start knocking on my door asking for peanut butter sandwiches.
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Post  rdw777 Sat Aug 05, 2023 2:52 pm

Thanks guys!… I always liked Mr. Clough’s designs and approach using common materials for great results…. The piece of foam was left over from when I insulated my shop…. I only needed to remove the foil skins….Del Gatto is good one too…. Love his plans and art work….. I think he drew a lot for other designers as well….

Gave it a Tyvek reinforced front end….and got one coat of tissue on it…. The article calls for silk span but I’m out so will double cover with tissue… color next…

Zoomslot Saucer  F1924a10
Zoomslot Saucer  5e3f1910

Radical Robert.

Contributes to the Flying Saucer sightings of late.


Yes, thought I would contribute my part LOL!!! May end up getting me in trouble!!!
Pretty sure it’s going to end up being sub 250 gram….Maybe that will bail me out Very Happy

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Post  rsv1cox Sat Aug 05, 2023 3:36 pm

I bet that you could also make some sort of water skimmer companion out of the design too.  Air boat type.  .049 on a pedestal or a BD-5 or W/M aeromite boat drive mechanism.  Or, or.....some Maple syrup and have it for breakfast..................... Embarassed
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Happy Re: Zoomslot Saucer

Post  rdw777 Mon Aug 07, 2023 4:19 pm

Yes Sir Bob, It is kind of a boatish looking thing…. I’m sure it could be easily modified into all sorts of motorized vehicles…. I usually get bogged down straining at a gnat…. This one’s meant to be a quickie Thumbs Up

Now has a coat of high tech space age material called…..well, …. Silver tissue paper  Very Happy

Zoomslot Saucer  2f70f010
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Happy Re: Zoomslot Saucer

Post  rsv1cox Mon Aug 07, 2023 4:29 pm

Interesting Robert, but it must be airfoiled in some way to produce lift, but I don't see it in the profile. I read all the details. "Balance is achieved by moving the battery pack and hot melt glue"? It's beyond my ability to build or understand, but I'm eagerly awaiting a flight report.
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Happy Re: Zoomslot Saucer

Post  GallopingGhostler Mon Aug 07, 2023 10:09 pm

It is sort of like a bumble bee, it doesn't know it can't fly and so it does. Surprised I gather that the zoom slot helps the wing to maintain a slight positive incidence, so it deflects the air to give it a touch of lift. It is the same principle as with the non-airfoiled aircraft. Take a flat plate, subject it to positive incidence and it will lift. A good number of 3D sheet R/C aircraft fly with flat surfaces with hardly any airfoil.

So, it may not be the most efficient, but given it is lightly loaded, it just does. What more is needed?
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Post  rsv1cox Tue Aug 08, 2023 6:39 am

I equate it with a "lifting body."  Lot's of different types but most have some sort of vertical propulsion.  It will be interesing to see how Robert's does. But, as I have noted before, you can get anything to fly and people have...........toilet seats for example but they are airfoiled. Smile
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Happy Re: Zoomslot Saucer

Post  rdw777 Tue Aug 08, 2023 6:58 am

I think that’s a good explanation George, Flat plates, While not very efficient, Can produce lift when subjected to a little positive angle of attack….Additionally, I think the slot on the saucer stabilizes the roll axis by directing a good bit of air over the fin which is in close proximity to it…. Among other things it does…

I think it is pretty amazing the Roy Clough was was able to achieve stability with this layout in a FF version in 1952…. The article of that version explains more how the slot works…

https://outerzone.co.uk/plan_details.asp?ID=9528
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Happy Re: Zoomslot Saucer

Post  rdw777 Tue Aug 08, 2023 7:44 am

But, as I have noted before, you can get anything to fly and people have........

I had an old Air Force vet tell me one time Bob, “You can get a brick to fly if you put enough power on it” LOL!
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Post  GallopingGhostler Tue Aug 08, 2023 10:43 am

rdw777 wrote:I had an old Air Force vet tell me one time Bob, “You can get a brick to fly if you put enough power on it” LOL!
That was a common statement by ukies (U Control flyers) back in the day. Laughing Love the design of the day. Roy was a genius. Paul Del Gatto (designs having his initials, P.D.G.) was also another prolific designer of the unusual. He had flying saucers, helicopters, gyroplanes, Jetex, and etc. Ray Malstrom was another.

Rough Clough had an unusual F/F lifting body, of which Skip Ruff converted to R/C in 1991:

https://outerzone.co.uk/plan_details.asp?ID=12158 Outerzone 12158: Martian Spaceship by Skip Ruff, Aug. 1991 Model Builder

Zoomslot Saucer  1215810
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Happy Re: Zoomslot Saucer

Post  Ken Cook Tue Aug 08, 2023 6:03 pm

George, my buddy Dan and Frank just built the Martian Spaceship. This was really cool. The old Atwood gave up and I think I was able to assist Dan in getting a good runner. I gave him a piston and cylinder from one that I had. I needed a few parts to make it complete. I figured it needed to run on this plane more than I needed it to sit in the drawer.         https://www.youtube.com/watch?v=gWs22_d_sbc
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Happy Re: Zoomslot Saucer

Post  rsv1cox Tue Aug 08, 2023 6:42 pm

rdw777 wrote:But, as I have noted before, you can get anything to fly and people have........

I had an old Air Force vet tell me one time Bob, “You can get a brick to fly if you put enough power on it” LOL!

I'm building one of those right now Robert. It's even brick red. Got enough paint on it to qualify. Just pulled the masking. In the future, the question.......Adult or kid? Owner would immediately think Kid! And correctly too. Smile I needed some of your stensils.

Zoomslot Saucer  P1015893
Zoomslot Saucer  P1015894

Bob
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Post  balogh Wed Aug 09, 2023 1:15 am

That is a lovely lil bird, Bob, looking forward to seeing its looks with a COX powerplant in the nose..
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Happy Re: Zoomslot Saucer

Post  rdw777 Wed Aug 09, 2023 7:12 am

Wow Bob, you hit a home run on that paint job!….The Grey made a good base to brilliant up the red!!!…. Very faithful to the box art, I like that…Whether it was kid or adult that built it, Would be fun to imagine what its (and your other rebuilds) history must have been like….They all have some character born into them…. You just spin it a little more to make them yours Very Happy

Loved that FF Martian Spaceship Ken…. Could hear the excitement in their voices….I’m sure that was common with a lot of Clough’s designs…. To see if “That Thing” will really fly…The Atwood seemed the perfect match to it…. Pulled it up very gracefully….Video was well done too….

I’ve seen a video of Ruff’s machine flying too George …. Crazy maneuverable…Little loose in the roll but always keeps it self upright …I really like the old hand drawn plans and
P.D.G. was one of the best…. I think he drew a lot of Ken Willard’s designs…. Frank Zaic is another favorite artist of mine…
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Post  getback Wed Aug 09, 2023 7:53 am

The saucer is coming along Nicely , I looked at the plans and read some of the article there is quite a bit involved in getting the balance and right but sounds like it will bee an impressive flyer . Very Happy This Site Rocks!
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Happy Re: Zoomslot Saucer

Post  rdw777 Wed Aug 09, 2023 3:31 pm

Thanks Andras, Eric Very Happy…. Next up, Needs a control center for the aliens Thumbs Up

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Post  rsv1cox Wed Aug 09, 2023 3:49 pm

Silver and gold Robert, looks like a money maker.  Little tiny horizontal stab, big rudder and elevator, this is going to be fun to watch.  You have courage Robert, but it is a proven design.  Have you ever flown anything like this before?  

Consecutive loops require no practice; wingovers, Immelmans and snap rolls require just a little. When the power quits, Zoomslot glides surprisingly flat and can be aimed to land where you want it with a neat little elevator flare on touchdown.

Bob
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Happy Re: Zoomslot Saucer

Post  rdw777 Wed Aug 09, 2023 4:41 pm

Thanks Bob, I was into flying wings for awhile and purposely tried to make them go pronto….That’s about the closest I would come to something like the saucer….
The wing below weighed 5.8 oz and the motor was 70 watts…. A little less power than a
TeeDee .049…. Punch the throttle and would go straight up as far as I could see….Wound my own motors from kits for them as well….. Only thing about something thin like the wing or the saucer is when they go “on edge” may be a little difficult to keep orientation …. I give the saucer a 50/50 chance to get past trimming … But we’ll have fun trying Very Happy

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Happy Re: Zoomslot Saucer

Post  HalfaDave Fri Aug 11, 2023 10:43 am

Hi rdw777,
Nice project, thanks for sharing... Cool
Cool 'slot effect' and RE control... Smile
I have seen 'pizza box' planes go really great with elevons and enough thrust...
I'm working on a 24in 'scale Monarch Butterfly', under 250g rule here.
Problem is, I want flapping wings... Smile
Take care,
Have fun,
Dave
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Post  rdw777 Fri Aug 11, 2023 6:00 pm

Thanks Dave! Whose Monarch are you building?…. Ken Johnson published one in Model Builder that was a flapper….I’ve built a few of his flappers…. Tedious but good flyers…. AMA handles MB’s plans now….

Zoomslot Saucer  9c470410
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Post  rsv1cox Fri Aug 11, 2023 7:57 pm

Wound my own motors from kits for them as well

I can't imagine the patience and dexterity that took Robert.

Zoomslot Saucer  Robert11
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Post  HalfaDave Sun Aug 13, 2023 7:37 am

Hi rdw777,
For my 'butterfly', I'm designing it my self.
The wing panels will 'flop' up and down 20deg due to 'slack rigging'... Smile
Hard part is getting cg ~25% without added wt.
Looking for lighter clear plastic fin material...
Speaking of fins... Smile
Nice one on your R/E saucer, should fly straight, until, you use rudder.
I'm thinking left rudder, will roll it right, and it will turn right... Shocked
Reversing rudder, it should fly fine...
That is my thinking ?
Your 6oz wing is making me think 'scale Bat shapes' are possible ! Cool
Take care,
Have fun,
Dave

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Post  rdw777 Sun Aug 13, 2023 3:34 pm

Thanks Bob, Love to get my strong glasses, Get under a strong light, And get in the zone Thumbs Up

That’s a neat idea Dave on the loose rigging…. I bet it will give the impression of moving wings!….Hopefully the saucer will move the same direction as the stick…. But if not we’ll hit the servo reverse switch LOL!!!!
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