Great Goblin

[billeblurzz]

Ok here’s my Great Goblin! Debated whether to put on the Estes logo…but I like what the Langfords are doing. Also it might answer any questions as to it being a clone or actual kit! But I guess a broken fin from landing would answer that too?

 

[billeblurzz]

For scale…here’s Rocky the Regal Beagle!

 

[techrat]

NICE! I was on the fence about buying this, but it looks great, so I may make the splurge once the price on everything drops post-Turkeyday.

 

[billeblurzz]

It’s a fun kit…super water slide decals! But I might consider papering the fins or get plywood fins. I went ahead and did neither to keep down weight for the black powder motors. We shall see how that goes…will try to use a BIG chute!

 

[SolarYellow]

That nose cone really does look too long. Needs the bottom portion painted yellow.

 

[techrat]

I dunno.... I kinda like the long nose. But then again, if you'd seen my face you'd know why...

 

[dpower]

Looks great, Bill! She'll fly nice on the E16 and F15, but I'd definitely recommend a larger chute. What was your final weight?

 

[Art Upton]

Are we at this point in life that we care the nose cone is too long? Sounds like Hams complaining about no new CW folks , HA

 

[billeblurzz]

My final all up weight with F motor and large chute was 503 grams!

 

[SolarYellow]

Are we at this point in life that we care the nose cone is too long?

Yeah, because this hobby is mostly about figuring out the best ways to do something, and an upscale of a classic, well-loved design that doesn't look right isn't the best it can be done.

 

[Back_at_it]

Are we at this point in life that we care the nose cone is too long?

Not even a little bit. Was never really a big fan of the small Goblin because it was so small. To me it was just another rocket.

The upscale on the other hand has my interest and I actually like the nose cone the way it is. I do think the body tube looks a little long but again, not comparing it to the original, just think it looks too long.

 

[techrat]

Was never really a big fan of the small Goblin because it was so small. To me it was just another rocket.

The attraction of the Goblin was that it was a *small* rocket that took a *big* motor. Think of it as the "Camaro" of rockets. The Gen1 Camaro was a fairly small car that came with a beefy V-8, which made the car a ton of fun. That's why the name became a legend. The Goblin was a little rocket that took a "D" at a time when the D was the biggest motor you could get, which made the rocket a ton of fun, and that's why the Goblin is so well loved among rocketeers.

 

[Back_at_it]

The attraction of the Goblin was that it was a *small* rocket that took a *big* motor. Think of it as the "Camaro" of rockets. The Gen1 Camaro was a fairly small car that came with a beefy V-8, which made the car a ton of fun. That's why the name became a legend. The Goblin was a little rocket that took a "D" at a time when the D was the biggest motor you could get, which made the rocket a ton of fun, and that's why the Goblin is so well loved among rocketeers.

I get the appeal of big motors in small rockets. I just never cared for the design in a small package. I feel the design works better as a larger model.

 

[techrat]

The upscale on the other hand has my interest and I actually like the nose cone the way it is. I do think the body tube looks a little long but again, not comparing it to the original, just think it looks too long.

I'm digging the upscale. To me, the long nose and body tube are proportioned to the 4 wide fins. I think it looks perfect the way it is. Definitely going to have to get me one of these.

 

[bad_idea]

My final all up weight with F motor and large chute was 503 grams!

If that's an Estes F15, I would not fly that and would switch to a punchier composite instead.

 

[Back_at_it]

My final all up weight with F motor and large chute was 503 grams!

503 with the F15 on board is still 400ish without motor. Running that through OR I'm seeing only 24.6mph off a 6ft rod which is too low. Even flying off an 8 ft rail would only give you 28.4 mph which you could probably get away with. I generally shoot for 30 mph minimum off the rod but the added stability of the rail would probably allow you to get away with 28 on a calm day.

Honestly, an E20 would be ideal for that rocket.

 

[ep29030]

clusters can satisfy your need for speed

 

[billeblurzz]

Ok thanks for the suggestions!

 

[SolarYellow]

clusters can satisfy your need for speed

Clusters are about the technical challenge and liking clusters. A bigger single motor is essentially always available that will deliver more performance for less money with lower risk of non-nominal flights.

So I've been OCDing about clusters lately...

 

[ep29030]

Yes, clusters can have more risk of failure. But they look awesome at liftoff. There is that part.

 

[Back_at_it]

Clusters are fun if you have the right launcher. They can be frustrating if you’re trying to use the stock controller.

Also, this one is built so it’s a little hard to change now

 

[oliveoyl]

Great Goblin (my first rocket) being examined by our Senior Inspector. Upgraded with the Vander-Burn plywood centering rings and fins.

 

[TRWXXA]

Great Goblin (my first rocket) being examined by our Senior Inspector. Upgraded with the Vander-Burn plywood centering rings and fins.

Drag race, Honey?!

 

[oliveoyl]

Drag race, Honey?!

View attachment 637750

 

[TRWXXA]

 

[sr205347d]

503 with the F15 on board is still 400ish without motor. Running that through OR I'm seeing only 24.6mph off a 6ft rod which is too low. Even flying off an 8 ft rail would only give you 28.4 mph which you could probably get away with. I generally shoot for 30 mph minimum off the rod but the added stability of the rail would probably allow you to get away with 28 on a calm day.

Honestly, an E20 would be ideal for that rocket.

clusters can satisfy your need for speed

Here is my Great Goblin off a 4' rod with an E12-4 and two A10s*:



For clusters, I recommend BP Rocket Starters from MJG.

(* $10 at Hobby Lobby)

 

[cwbullet]

Drag race, Honey?!

View attachment 637750

Nice. His and her rockets are great.