Parkzone P-51 Preflight check list and Launch tips
10-05-2005, 03:26 AM
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RE: Parkzone P-51 Preflight check list and Launch tips
If you want to check the Center of Gravity for the plane it's located 70 mm from the leading edge on the wing
To test:
To test:
can some one give me CG from the spinner
10-05-2005, 10:33 PM
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RE: Parkzone P-51 Preflight check list and Launch tips
Just checked it again. It's 70 mm from the leading edge of the wing. That's just about 3 inches back from the leading edge of the wing. Don't know how much clearer I can make that.
11-15-2005, 11:15 AM
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RE: Parkzone P-51 Preflight check list and Launch tips
Ok I recommended buying some spare props in my original post. Well after well over 60 flights I have never once broken a prop. Maybe it's because I bought 2 extra spares but I've never broken one on landing.
07-11-2007, 08:51 PM
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RE: Parkzone P-51 Preflight check list and Launch tips
Hello All
I was just wondering what can you do to counter torque during launch? I have parkzone j-3 cub experience (which is easiest handlaunch i've seen) , but this p-51 mustang handlaunch is quite difficult. On just my 1st launch, left roll and nose crash, the spinner cracked in half, 2nd launch massive left spiral again and nose-first crash. After that, I just stopped, figuring I wasn't doing it right. Also, there was no wind that day (which didn't help).
Is there a way to counter torque? Does a brushless motor and lipo really ease launching?
Thanks
I was just wondering what can you do to counter torque during launch? I have parkzone j-3 cub experience (which is easiest handlaunch i've seen) , but this p-51 mustang handlaunch is quite difficult. On just my 1st launch, left roll and nose crash, the spinner cracked in half, 2nd launch massive left spiral again and nose-first crash. After that, I just stopped, figuring I wasn't doing it right. Also, there was no wind that day (which didn't help).
Is there a way to counter torque? Does a brushless motor and lipo really ease launching?
Thanks
07-12-2007, 11:03 AM
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RE: Parkzone P-51 Preflight check list and Launch tips
Yeah 70mm back from the leading edge of the wing is pretty clear. If you have less than 70mm of wing than you obviously haven't done any repairs after your last crash.
Ok, I'll try and spell it out for you.
1)Measure with the plane inverted so that you can see the area where the wing meets the body
2)use some form of measuring to measure either 70mm or exactly 2.8 inches from the point where the wing meets the fuse. Measure on both sides of the fuse to make it easy
3)pencil in a mark on the wing at both points
4)adjust electronics until your CG matches the pencil marks.
If you can't understand that than there is definately something wrong with your plane...or something else.
Most new guys to parkzone's "faster" planes (WWII planes, Stryker) don't realize how firmly you actually have to throw the plane to launch it. It isn't just a "toss"...these planes need SPEED to stay flying.
Ok, I'll try and spell it out for you.
1)Measure with the plane inverted so that you can see the area where the wing meets the body
2)use some form of measuring to measure either 70mm or exactly 2.8 inches from the point where the wing meets the fuse. Measure on both sides of the fuse to make it easy
3)pencil in a mark on the wing at both points
4)adjust electronics until your CG matches the pencil marks.
If you can't understand that than there is definately something wrong with your plane...or something else.
Most new guys to parkzone's "faster" planes (WWII planes, Stryker) don't realize how firmly you actually have to throw the plane to launch it. It isn't just a "toss"...these planes need SPEED to stay flying.
