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  #21  
Old 01-04-2009, 07:24 PM
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Maniac BAR Maniac BAR is offline
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Location: Phoenix, AZ
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Quote:
Originally Posted by Mark II
Just wondering how Estes came up with the name for that model...

I have never seen one, except in pictures in the web. When it is under thrust, does it fly like more like a rocket or more like a blimp?

I believe that The Dude was the only model rocket ever produced that came with instructions stating that the launch pad consisted of a rod stuck in the ground.

Mark \\.


The dang thing flies just fine. Looks like a rocket going up and changes into a skinny blimp as it comes down. It needs plenty of room however cause it goes wherever it wants to on the way down, just like most blimps do in the wind.

Did it gets it name because someone at Estes saw it for the first time and asked the designer

" DUDE, are you really going to fly that" LOL
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  #22  
Old 01-04-2009, 07:54 PM
Les Les is offline
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One thing to remember, you have to fly it when there is hardly any wind at all. Not so much for how the wind will carry it away (which it will), but even sitting on the launch pad any breeze will want to dump the launch pad over onto it's side.
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  #23  
Old 01-04-2009, 10:59 PM
jeff_in_AZ jeff_in_AZ is offline
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Location: Chandler, AZ
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Quote:
Originally Posted by Maniac BAR
Hey, Jeff. I have one still in the box! You are welcome to it.


Thanks! PM sent.

Jeff

Last edited by jeff_in_AZ : 01-05-2009 at 01:48 PM.
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  #24  
Old 01-04-2009, 11:14 PM
jeff_in_AZ jeff_in_AZ is offline
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Quote:
Originally Posted by Mark II
I have never seen one, except in pictures in the web. When it is under thrust, does it fly like more like a rocket or more like a blimp?

Mark \\.


It turns out that I videotaped the 2 flights we have made with our Dude,
here is a link to the video of the flights:

http://www.youtube.com/watch?v=J5S8k8ONtgQ

The first flight was on a D12-3 with air in the balloon, the 2nd flight
was on a D12-5 using Helium in the balloon. You can judge for yourself, but
I think that Bob is right, the Helium didn't seem to make much difference.
The altitude was about the same, maybe a little gentler on the landing with Helium.

We had a lot of trouble trying to use the launch pad that comes with the kit
due to the hardness of the desert ground, so we just used a standard launch pad
with 1/4" launch rod both times.

Jeff
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  #25  
Old 01-05-2009, 04:55 AM
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STRMan STRMan is offline
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I love the backslide before deployment.
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  #26  
Old 01-05-2009, 06:59 AM
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Shreadvector Shreadvector is offline
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Location: Southern California
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When it first came out we did a fast calculation on the mass difference between air and He and it was like an ounce or two for that volume (actual numbers are in the r.m.r archives...).


I flew one on an Aerotech E15-4 and it did start to flex aerodynamically. D12 is best.

The only reason it would get burn holes at ignition, is if you did not read the instructions and support it well above the flat blast deflector. My only burn holes are from post ejection minute embers that managed to impact the bag.

The name comes from the Big Lebowski.

http://www.imdb.com/title/tt0118715/
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  #27  
Old 01-06-2009, 07:27 PM
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Mark II Mark II is offline
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Quote:
Originally Posted by Shreadvector
[...]
The name comes from the Big Lebowski.

http://www.imdb.com/title/tt0118715/

Knowing that, now I wish it was still in production!

Love the vids, Jeff!

Mark \\.
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  #28  
Old 01-07-2009, 11:23 AM
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jadebox jadebox is offline
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Quote:
Originally Posted by JAL3
Do you think that with a lower thrust reload, say an F12, the result would have been worthwhile?


I have a couple of Ellis G20 motors ... and I have two "Dudes" still in their boxes. Hmmm ....

-- Roger
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  #29  
Old 01-07-2009, 11:26 AM
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jadebox jadebox is offline
Roger Smith/JonRocket.com
 
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Quote:
Originally Posted by Shreadvector

I flew one on an Aerotech E15-4 and it did start to flex aerodynamically.


Darn ... that probably rules out using a G20.

-- Roger
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  #30  
Old 01-07-2009, 12:00 PM
mperdue mperdue is offline
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Chad staging works great with these things...

Mario
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