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Feyd 11-27-2011 04:11 PM

PMC Question
 
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I picked up this "Apollo 27" model at a LHS and thought it might be interesting to try to convert it to actual flying status. Has anyone seen this one? Any ideas where to start? I thought I'd weigh all of the parts and try to simulate it in RockSim.

I was thinking of making it 24mm since it should be fairly heavy with the outrigger engines and all that plastic. I'm not sure if the outrigger pods are big enough for engines (maybe minis) but I'll have to check.

Pointers are welcome. I'm still on vacation right now so I won't be able to start working on it until a week or two into December at the earliest.

chrism 11-27-2011 04:29 PM

I have certainly seen it at my LHS on the self and I seen a picture of one in FineScale Modeler magazine but you are the first one that I am aware of to try to convert one into a flying model. The main thing to over come is to install a recovery system.

kevinj 11-27-2011 05:01 PM

There were a few flying at Naram this year. Go to www.naramlive.com and you can see pictures.

You certainly can try using rocksim, but most folks will do cardboard cutouts to figure stability for pmc models.

kj

BEC 11-27-2011 05:22 PM

Looking at the standings it looks as if three were entered, one at least attempted flight. That must be this one: http://www.naramlive.com/naramlive-...%20IMG_3057.JPG

kevinj 11-28-2011 07:28 AM

No, they all attempted a flight. They all got 0 flight points, but from the standings at NARAMLive, it looks like the one with the score at least got qualified- even with a 0 point score? Looks hinky.

kj

ghrocketman 11-28-2011 10:08 AM

Remember, the "C" in PMC stands for CRASHER.
The vast majority that I have ever seen use "post-flight" Broom-n'-Trash Bag recovery due to the overwhelming chance of POWR-PRANGG due to instability or vastly underpowering them.
Very Entertaining to watch as a by-stander, but normally a TOTAL WASTE of model building time.

Bill 11-28-2011 08:46 PM

2 Attachment(s)
Here are a couple of shots of one at NARAM:


Bill

zog139 11-29-2011 02:01 PM

Quote:
Originally Posted by ghrocketman
Very Entertaining to watch as a by-stander, but normally a TOTAL WASTE of model building time.


Your opinion.... actually using some rocket science and getting a PMC to fly correctly is quite a challenge. By just adding more power to PMC's is not rocket science it is non-science. See Tim Allen... grunt.... more power !



YMMV

my.02

ghrocketman 11-29-2011 02:27 PM

It's a challenge alright...a mostly futile one from the many I have seen since 1977.
Most fall into the following categories:
1) Powr-Pranger
2) Sky-Writer
3) Cruise Missile/Land Shark

MAYBE 10% of the attempts I have seen are even close to an acceptable flight profile.
Most of those have been Plastic Models of actual rockets/capsules such as the Revell Gemini capsule conversion, Revell/Airfix Saturn conversions, etc.
Most all the fighter-jet conversions are dismal failures.

Anvil-Lofting is a safer and more predictable activity.

rokitflite 11-29-2011 03:01 PM

Quote:
Originally Posted by ghrocketman
It's a challenge alright...a mostly futile one from the many I have seen since 1977.
Most fall into the following categories:
1) Powr-Pranger
2) Sky-Writer
3) Cruise Missile/Land Shark

MAYBE 10% of the attempts I have seen are even close to an acceptable flight profile.

Anvil-Lofting is a safer and more predictable activity.



Very well spoken by the guy who now only speaks (too much) and builds nothing. You go boy!!!


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