Ring Wing - Lockheed Airliner Concept

[neil_w]

I'm not even going to try to guess what effect it will have on the rocket. I'm guessing very little.

LOL I guess I did try.

 

[lakeroadster]

Nose Cone

Turned the nose cone out of recycled redwood on my wood lathe.

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[lakeroadster]

Ballast

Made the ballast and "laundry retainer" from a single piece of 3/4-10 SA-193-B7 stud.

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[Daddyisabar]

Moving the centerline up helps on my mindsim. Looks cool too, like the DynaStar SHX or other Shrox kits.

 

[lakeroadster]

Moving the centerline up helps on my mindsim....

Ditto

 

[kuririn]

If the Odd'l Corkscrew is any indication, it will fly stable but spiral going up.

 

[BABAR]

In theory, you don't get base drag where the exhaust plume of the motor is (I think). So moving the motor around does relocate the base drag a bit, although it shouldn't change the overall quantity.

I'm not even going to try to guess what effect it will have on the rocket. I'm guessing very little. The offset of the motor relative to CG and/or center of drag seems much more relevant, but I don't know how to quantify those either.

So... we'll see times three.

Kind of what I was thinking.

Of course, all other things being equal the rocket does whatever the heck it wants to!

 

[lakeroadster]

Motor Mount Day 01

Cut the homemade Basswood plywood centering rings, Drilled them for the offset motor mount, made a motor retention clip, and then started gluing the BT-50H motor tube.

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[lakeroadster]

Motor Mount Day 02

Installing the stuffer tube using a couple of cardboard centering rings. Holding the assembly vertical for drying.

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[Daddyisabar]

Live From Off Center.

Looks a little Off Broadway.

 

[lakeroadster]

Motor Mount Day 03

Gluing the motor mount stuffer tube forward end, and installing the forward eccentric centering ring.

I'll wrap the stuffer tube with electrical tape once the glue has set. Wouldn't want it to split at the seams when the ejection charge goes off.

 

[Daddyisabar]

Looks more like a part out of a fancy Italian sports car motor!

 

[lakeroadster]

Motor Mount Day 04

Used some electrical tape to wrap the stuffer tube. A bit of insurance against "rapid spiral disassembly".

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[lakeroadster]

Red Oxide Primer Day 01

They were out of the Rustoleum Automotive 2 In 1 Filler / Sandable so I bought a can of Rusty Metal Primer.

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[lakeroadster]

Swing Test

It passed the swing test..

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[mbeels]

Wow, that was fast, from concept to swing test!

 

[lakeroadster]

Wow, that was fast, from concept to swing test!

The rear eject motor mount took most of the time . But it gives the rocket options, so it was worthwhile.

 

[lakeroadster]

Primer Day 02

Sanded the red oxide primer and then recoated with gray Rustoleum 2 in 1 Filler / Sandable.

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[lakeroadster]

Motor Mount Altimeter Bay

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[Daddyisabar]

Now it looks like a fancy suspension piece of an expensive Italian sports car.

 

[BABAR]

Now it looks like a fancy suspension piece of an expensive Italian sports car.

I was thinking it does have an uncanny resemblance to
https://en.m.wikipedia.org/wiki/GAU-8_Avenger

 

[BABAR]

Motor Mount Altimeter Bay

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Can you put the vent hole on the rear centering ring so it doesn’t mess with the cosmetic or aerodynamic surface of the body tube? Or will that location suffer weird pseudo-Krushnic evil forces (Jehoshaphat, now I AM starting to sound like @Daddyisabar !) that will throw the readings off? Maybe @Steve Shannon or the other HPR guys will know.

I was thinking you’d put the altimeter up from to get a CG bonus. Obviously you’ve calculated it in and it’s fine.

 

[lakeroadster]

Can you put the vent hole on the rear centering ring so it doesn’t mess with the cosmetic or aerodynamic surface of the body tube?

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[lakeroadster]

White Paint.... and some CA for the Altimeter Bay

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[Steve Shannon]

Can you put the vent hole on the rear centering ring so it doesn’t mess with the cosmetic or aerodynamic surface of the body tube? Or will that location suffer weird pseudo-Krushnic evil forces (Jehoshaphat, now I AM starting to sound like @Daddyisabar !) that will throw the readings off? Maybe @Steve Shannon or the other HPR guys will know.

I was thinking you’d put the altimeter up from to get a CG bonus. Obviously you’ve calculated it in and it’s fine.

A vent on the aft end will probably be in a low pressure area. You might even end up bathing the altimeter in soot. Also I would expect altitude readings to be overly high.
I would place the vent in the side of the body tube somewhere, but it’s difficult to know where exactly. Cool design!

 

[lakeroadster]

Decal Prep.

Sprayed some clear on the decal sheet. I consolidated the decals for the Lockheed Ring Fin with the TWA SST, all onto one sheet.

 

[BABAR]

since the nose cone is gonna be glued in, I am curious for cosmetic purposes why not just glue it in and fill the gap with CWF or bondo?

hiding nose cone lines is one of the things I always felt made rocket like the Little Bucky Jones look extra cool.

 

[lakeroadster]

since the nose cone is gonna be glued in, I am curious for cosmetic purposes why not just glue it in and fill the gap with CWF or bondo?

hiding nose cone lines is one of the things I always felt made rocket like the Little Bucky Jones look extra cool.

View attachment 603123

I like that look too. I'll be using a couple of wood screws to attach the nose cone to the fuselage, that way it can still be removed if need be.

 

[lakeroadster]

Decal Application

 

[BABAR]

Decal Application

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Warms the cockles of my heart!

I really like eccentric “Scoupe” rockets!

looking forward to flight report.