Of course he doesn't. He's George. And yes, I was complimenting him on all
his work. George and Chris are VERY different modellers. George has patience
when it comes to his work, and realistic expectations of what will work and
what won't. Chris does not.
again that would entail massive monetary expense and more importantly DOZENS
if not HUNDREDS of hours in work.
for what gain ? reduction of model mass by .5 pounds (that is what I
estimate I would save in mass) and an extra 25 feet in altitude ?
its just not worth it.
and on top of that an incredible loss in TOUGHNESS and durability. remember
this model survived 3 crash landings with narry a scratch.
as I said I would have to test but at the range this thing would be flying
AND the nature of model rocket flying (large fields away from populations in
the immediate vicinity. it just might work.
I will have to play with it and find out. but going FM would DOUBLE the
I do not NEED to reduce Mass. what part of that are you so dense on
I need to reduce DRAG or increase power and burn time.
mass is fixed. I do not think it would be POSSIBLE for me to get below 10
pounds. I just do not think it is possible short of me making a pure foam
model Carbon Fibering the whole damned thing and them melting out the foam.
Short of the THOUSANDS of dollars that would cost and the HUNDREDS of hours
and trial and error it would consume I estimate that it MIGHT get as light
as 8 pounds.
just not worth it.
if this thing was 20 pounds you would have a point but its only 12 pounds !!
it is going to be really hard to get much lighter than that.
point is len It is not getting any lighter without spending thousands of
dollars and even then it will not get much lighter.
if I had unlimited resources and budget and time I MIGHT be able to make
this glider as light as 8 pounds.
that would mean a Comlete foam glider that is then Carbon FIbered with 2
layers of carbon and a 3rd layer maybe 4th at Key structural stress points.
Then acetone the foam out so I have a pure carbon shell.
Then and maybe then I could get close to a theoretical MINIMUM of 8 or 9
pounds (remember we still have the FIXED mass of the eletronics and
associated gear and Motors)
that would cost THOUSANDS of dollars and take HUNDREDS of hours. for what.
an extra 50 to 100 feet in altitude ? I can do that just by using a larger
motor which would cost me a few DOLLARS more (actually LESS money since I am
going to hybrid) and NO changes to the glider.
in fact my idea to go balsa built up has NOTHING to do with mass and drag.
in fact I fully expect the next grr to be OVER 10 pounds. maybe even heavier
than last years final version (11.4 pounds) I am going balsa build up for
another reason and to allow the glider to be Modular for easier transport
I have already solved the mass and drag problem. I solved that with the
intent to use an I90 hybrid. Drag and mass problem solved. More power and
So will you reverse this statement about me if the glider works perfectly
next year ?
> Of course he doesn't. He's George. And yes, I was complimenting him on all
> his work. George and Chris are VERY different modellers. George has patience
> when it comes to his work, and realistic expectations of what will work and
> what won't. Chris does not.
> > Man, you could get get into a shooting war about whether body tube spirals
> > should be clockwise or counter-clockwise on this news group. And I bet it
> > would start with a knock-down drag-out about how to define which is which.
> Well, that would depend on whether you're in the northern or southern > hemisphere :-)
> > Peter Alway
> Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD"
> >>> To reply, remove the TRABoD!
Here here. I have EASILY over 50 flight on my blackbirds.
I doubt ANYONE except the creators of the model have that many flights on
such a model.
LOTS of money in engines :-( but so much fun to fly. but I got lucky too.
bought a box of e-15p's from an allied hobbies for $50 (that my friends was
$1.66 an en engine :-) droool Drool how much fun it was while it lasted.
Those leftist spirals are what gets us those Senators from NY and NY,
and you know what good that does our hobby? You know how long I've
been working to get rightist spirals mandated in the NFPA codes?
Anybody working with leftist spirals is an enemy of this hobby,
and. . . .
Wait a minute. Wrong thread.
Never mind. . . .
[;-) for the humor impaired. . . ]
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Mark B. Bundick mbundick - at - earthlink - dot - net
NAR President www - dot - nar - dot - org