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H9 Pt19 Balance

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Old 02-05-2003 | 12:15 AM
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From: deland, FL
Default H9 Pt19 Balance

I sure would appreciate info. on the balance point on the H9 PT19
arf. I assume it is close to the spar, but not sure.

Thanks Varmit
Old 02-05-2003 | 03:02 AM
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From: Brandon, MS
Default H9 Pt19 Balance

Varmit, the book calls for 4 13/16" back form leading edge at fuse.
When I flew mine that way it felt very tail heavy and started removing weight from the rear. think I would up at about 4", but am not sure of that number and have the plane taken apart right now.
Ed M.
Old 02-05-2003 | 04:11 AM
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From: deland, FL
Default PT19 Balance

THANKS BENTGEAR

Varmit
Old 03-01-2003 | 10:52 AM
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From: Bonney Lake, WA,
Default H9 Pt19 Balance

Does it really need more nose waight?
I have myne the same as the book.
Old 03-01-2003 | 10:57 AM
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From: Bonney Lake, WA,
Default H9 Pt19 Balance

Also did you have thoes stupid wheels on there?
They would make a big difference BentGear.
Old 03-01-2003 | 11:27 AM
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From: Brandon, MS
Default H9 Pt19 Balance

Paul , one of the first things I did was change out the wheels. You will be able to save over a pound of weight. I wish I had recorded where my CG wound up but I know it was forward of where the book called for, which is odd for me, cause I have most of mine set back from the recommended on other planes. I do remember that at 4 13/16" it was not hazardous to fly, just felt tail heavy.
Had a lot of fun with it and a G23 mounted up front. It will get brought out flown again one day.
Ed M.
Old 03-01-2003 | 11:46 AM
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From: Bonney Lake, WA,
Default H9 Pt19 Balance

Hey Bent Gear,
Did it seem to fly slow?
Old 03-01-2003 | 06:25 PM
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From: Brandon, MS
Default H9 Pt19 Balance

Paul, do you mean like it was was having a fight with the air to stay up, slow with its tail hung low or just slow because of the airspeed.

The first time I put it up the G23 sounded so good on the ground, but in the air it all went to s$%t shortly after takeoff. Didn't think it was going to make it around to land it, and it didn't quite make it back to the field. Minor damage. Got the engine looked at by one of the true small gas engine masters we have in the area and after some internal adjusting on the carb it was running much better. It flew fairly good then, but still there was the tail heavy feel. Took some of the lead out of its tail it became a great flying airplane gaining power each flight. It seemed to fly along at a fairly fast clip. I was surprised at the vertical it would have doing a stall turn and the diameter of loops it would do.

Flew it for about 12 hours and now I have robbed the G23 to go on an Ultra Stick. Motor seems to still be breaking in and gaining power.

One thing you need to watch out for is the langing gear blocks can get loose and need to be reinforced. My right one almost broke out, but never had to do anything to the left one. They need to be braced back to the spar and not just glued to the balsa. Its fun doing touch n goes. I did have to increase my elevator throw to get it to flair good so thats another I think I liked the flying with forward CG. With it back a little the elevator would have had a lot more authority.

I don't know if this rambling has answered any of your questions or not but maybe it has helped a little.
Ed M.
Old 03-03-2003 | 02:41 AM
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From: Bonney Lake, WA,
Default H9 Pt19 Balance

Hey BentGear,
I flew the plane for the first time yesterday and I love it!
The Saito is really the best choice because of its lighter weight.
This plane flies really slow but when it does stall it just slowly drops the nose.
No scarry wing stalling on this plane!

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