polcat 5.5" mercury redstone building advice

[The Rocket Kid]

So recently I bought a polcate aerospace 5.5" mercury redstone so I wanted to know if anyone has any building advice for me!?

 

[UPscaler]

Man I'd love to pick one of those up.

I recently built a Polecat 5.5 inch Nike Smoke. (Here)

The tubes are great quality, and all the parts fit just perfectly! I can see the redstone being a more difficult build, but polecat kits are a breeze, even when fiberglassing the fins like I did.

My advice: Sand everything that will be bonded very well, and have fun!



Braden

 

[The Rocket Kid]

Man I'd love to pick one of those up.

I recently built a Polecat 5.5 inch Nike Smoke. (Here)

The tubes are great quality, and all the parts fit just perfectly! I can see the redstone being a more difficult build, but polecat kits are a breeze, even when fiberglassing the fins like I did.

My advice: Sand everything that will be bonded very well, and have fun!



Braden

Man that is a nice looking rocket.Cool paint job love the green fins.How did the launch go?

 

[Aksrockets]

Im guessing you at least have an L1, L2 would be better, that thing's a little heavy for a G motor.


Alex

 

[UPscaler]

Thank you, It actually still has not had a chance to fly, I've got the charges already made from the first time we went to launch, and it's K740 C-star sitting in our box!



Braden

 

[The Rocket Kid]

Thank you, It actually still has not had a chance to fly, I've got the charges already made from the first time we went to launch, and it's K740 C-star sitting in our box!



Braden

Thats a nice motor.Hope you get to launch it soon!

 

[The Rocket Kid]

So I've had the kit for about a week and today I finaly made some actual progress. I built the escape tower.Can't figure out how to post pictures otherwise I would.
But tomorow maybe I'll work on it some more
Thats all for now!

 

[Kaycee]

I have one....

https://www.rocketryforum.com/showthread.php?30109-Polecat-Mercury-Redstone&highlight=kaycee

 

[The Rocket Kid]

I have one....

https://www.rocketryforum.com/showthread.php?30109-Polecat-Mercury-Redstone&highlight=kaycee

Hey that rocket looks great.hope mine looks that when I'm done
Those stickers look sooo good I just might have to get some

 

[The Rocket Kid]

Do any of you guys have a rocksim file for this?I have already check rocket reviews library and had no luck.

 

[JonathanOtt]

Okay, I know...resurrecting an old thread, but what "scale" would the 5.5" Polecat Mercury Redstone be?

I'm contemplating a stand-off-scale Little Joe using https://www.thingiverse.com/thing:3285664, which is a 5.5" Mercury Capsule for the Polecat Mercury Redstone, and while I know I'll need a 5.5" body tube, I'll need to figure out the body tube length and fins.

 

[neil_w]

Redstone is 70" in diameter, so 5.5:70 = 1:12.73.

 

[JonathanOtt]

Okay, I found some drawings and the 1:1 Little Joe 5B is 2.03m in diameter, so that (if my math is correct) makes a 5.5" airframe about 1:14.54545454... scale. Sound right?

 

[JonathanOtt]

Redstone is 70" in diameter, so 5.5:70 = 1:12.73.

Thanks Neil!

 

[neil_w]

My calculator agrees.

 

[tim cubbedge]

I have one and I think it’s 1/17 but will look at instructions when I get home.

 

[Ez2cDave]

Okay, I know...resurrecting an old thread, but what "scale" would the 5.5" Polecat Mercury Redstone be?

I'm contemplating a stand-off-scale Little Joe using https://www.thingiverse.com/thing:3285664, which is a 5.5" Mercury Capsule for the Polecat Mercury Redstone, and while I know I'll need a 5.5" body tube, I'll need to figure out the body tube length and fins.

Jonathan,

NOTE : The REDSTONE dimensions are in CALIBERS ( multiples of body diameter ) . . . In this case, 1 "Caliber" = 70 Inches !

I love old threads . . . Especially updating them !

Dave F.

 

[JonathanOtt]

I have one and I think it’s 1/17 but will look at instructions when I get home.

Tim, can you give me the length of the body tube?

I can figure out and design a set of fins with Dave's diagrams, but I'm thinking ~49" for the body tube.

 

[tim cubbedge]

The payload is 11.25" & booster is 43.0". No switch band so overall airframe is 54.25"

 

[Ez2cDave]

Tim, can you give me the length of the body tube?

I can figure out and design a set of fins with Dave's diagrams, but I'm thinking ~49" for the body tube.

RE-CHECK your "Math" on the Body Tube length !

Fin Unit is 9.27 ft = 111.24 inches

Mid-Section is 37.5 ft = 450 inches

Upper Section is 139.64 inches

111.24 + 450 + 139.64 = 700.88

The Airframe "Tube" is 700.88" long, according to this data

NOTE : Peter Alway's data shows the length at 688.4 inches, in ROTW.

Dave F.

 

[JonathanOtt]

I'm getting 686.38006" because we have to take the 14.49994" of fin that extends below the "body tube"

 

[tim cubbedge]

I have one and I think it’s 1/17 but will look at instructions when I get home.

I stand corrected, the kit 5.5" kit I have is 1/13 scale.

 

[Code Red Rocketry]

Hey! I know this is an old thread, but I wanted to check and see...does anyone have the specs/instructions for the Polecat 5.5" Mercury Redstone or know where I can get them? I've been trying to figure out if I can clone one. I take it the body tube is good 'ole LOC 5.5"?

 

[tim cubbedge]

Hey! I know this is an old thread, but I wanted to check and see...does anyone have the specs/instructions for the Polecat 5.5" Mercury Redstone or know where I can get them? I've been trying to figure out if I can clone one. I take it the body tube is good 'ole LOC 5.5"?

I will take a look and see if I can find my instructions. It’s not loc tube. It’s glassed over cardboard.

 

[Code Red Rocketry]

I will take a look and see if I can find my instructions. It’s not loc tube. It’s glassed over cardboard.

Do you recall the tube's dimensions? That's really what I'm mostly after. I'm trying to replicate it with LOC parts.

Thanks!

 

[tim cubbedge]

Do you recall the tube's dimensions? That's really what I'm mostly after. I'm trying to replicate it with LOC parts.

Thanks!

Yes it’s 5.5” OD and 5.375” ID. It has a layer or two of fiberglass on the outside. Could not find instructions.

 

[Ez2cDave]

Yes it’s 5.5” OD and 5.375” ID. It has a layer or two of fiberglass on the outside. Could not find instructions.

LOC sells "pre-glassed" "tubing . . . https://locprecision.com/products/pre-glassed-loc-cardboard-airframe-tubing

 

[Ez2cDave]

Yes it’s 5.5” OD and 5.375” ID. It has a layer or two of fiberglass on the outside. Could not find instructions.

Polecat Aerospace Mercury Redstone INSTRUCTIONS ( pdf below )

Dave F.