NEW H9 P51 Mustang 60 ARF
12-14-2009, 07:05 PM
#426
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RE: NEW H9 P51 Mustang 60 ARF
It's $160 at Tower.
I really like the rectifier in the previous link, am looking forward to the regulator details. Wonder if it could be operated by wind driven propeller rather than the belt drive.
I really like the rectifier in the previous link, am looking forward to the regulator details. Wonder if it could be operated by wind driven propeller rather than the belt drive.
12-14-2009, 09:47 PM
#427
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: Spitpilot
Thanks RodanAZ - I may consider this mod but really have no problem with the manual suggestion except that I use a threaded insert in the wing and a 10-32 screw instead of the wood screws to hold the scoop in place and the wing halfs epoxied together.
WRT the CG location issue which keeps popping up I have done some comparison with my TF 1/7 P-51 kit. The TF kit has the same WS and area within a few sq in's, weighs about 13#, and flies very well with a Saito 120. The CG on the TF is at 30% MAC or 5.4 in aft of the wing LE @ the fuse and has a wing incidence is @ 1/2 deg with the horizontal tail @ 0 deg. The H9 Blue nose on the other hand apparently has the best CG @ 25.5% MAC or 4.5 in aft of the wing LE @ the fuse but has a wing incidence @ 1 deg with the horizontal tail @ 0 deg. This is probably the reason the CG is so far forward but still requires some amount of down elevator - has anyone got data on inverted flight with the CG this far farward as I would expect significant down elevator required for level inverted flight with the CG this far forward?
Thanks RodanAZ - I may consider this mod but really have no problem with the manual suggestion except that I use a threaded insert in the wing and a 10-32 screw instead of the wood screws to hold the scoop in place and the wing halfs epoxied together.
WRT the CG location issue which keeps popping up I have done some comparison with my TF 1/7 P-51 kit. The TF kit has the same WS and area within a few sq in's, weighs about 13#, and flies very well with a Saito 120. The CG on the TF is at 30% MAC or 5.4 in aft of the wing LE @ the fuse and has a wing incidence is @ 1/2 deg with the horizontal tail @ 0 deg. The H9 Blue nose on the other hand apparently has the best CG @ 25.5% MAC or 4.5 in aft of the wing LE @ the fuse but has a wing incidence @ 1 deg with the horizontal tail @ 0 deg. This is probably the reason the CG is so far forward but still requires some amount of down elevator - has anyone got data on inverted flight with the CG this far farward as I would expect significant down elevator required for level inverted flight with the CG this far forward?
John
12-14-2009, 11:24 PM
#428
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RE: NEW H9 P51 Mustang 60 ARF
I got her balanced finally at about 4.7.
The cooling header is awesome! I had to trim just a bit off the corner but it fits nicely under the cowl with no trimming. The header has a nice smooth 90 degree elbow cast inside the manifold which allows some material to be removed. The header is also long enough to stick out the cooling hole that was there to begin with, check it out:
The cooling header is awesome! I had to trim just a bit off the corner but it fits nicely under the cowl with no trimming. The header has a nice smooth 90 degree elbow cast inside the manifold which allows some material to be removed. The header is also long enough to stick out the cooling hole that was there to begin with, check it out:
12-15-2009, 04:15 AM
#432
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RE: NEW H9 P51 Mustang 60 ARF
This tail wheel I found it in three options... My guess will be 20-60
http://www.myatomic.com/catalog/sear...ithin=&btnG=Go
and also: the braket.
http://www.myatomic.com/catalog/view...UB376&q=dub376
I am sure that you will find something else and over $25 is free shipping.
Does any one else know good sources. I use this, good price,customer service and fast shipping too.
Adrian
12-15-2009, 09:05 AM
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: charlie1960
That pipe looks spiffy.
That pipe looks spiffy.
Playing with a nursery scale it looks like she ended up being about 11.1 pounds. I'm going to cut out the radiator scoop and try and get rid of a few ounces like you Charlie. I think I can swap out for some shorter servo extensions as well.
I would love to get it back under 11 pounds.
Think if this plane was built to require no nose weight, I would have a Saito 125 powered .60 Mustang at 10.6 pounds.
12-15-2009, 11:02 AM
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: i7x58
This tail wheel I found it in three options... My guess will be 20-60
Adrian
This tail wheel I found it in three options... My guess will be 20-60
Adrian
Shane
12-15-2009, 12:24 PM
#437
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RE: NEW H9 P51 Mustang 60 ARF
Anyone need a brand new never mounted blue nose spinner? They are on backorder at Horizon. It is 30 dollars plus 5 dollars shipping. Thanks. Here is my ad http://www.rcuniverse.com/market/ite...068&electric=0
12-15-2009, 04:22 PM
#438
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RE: NEW H9 P51 Mustang 60 ARF
Is anyone flying their Mustang with the wings not glued together and mounting them the way the manual calls for? Most all of my planes I am flying now, Yak 54, Funtana, etc. have the wings mounted this way on a tube with 1 nylon screw holding each wing and I have not have a problem. I know these planes are stressed way more than this mustang will be. If your flying this way let me know. Thanks
12-15-2009, 05:12 PM
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: Saillfish
Is anyone flying their Mustang with the wings not glued together and mounting them the way the manual calls for? Most all of my planes I am flying now, Yak 54, Funtana, etc. have the wings mounted this way on a tube with 1 nylon screw holding each wing and I have not have a problem. I know these planes are stressed way more than this mustang will be. If your flying this way let me know. Thanks
Is anyone flying their Mustang with the wings not glued together and mounting them the way the manual calls for? Most all of my planes I am flying now, Yak 54, Funtana, etc. have the wings mounted this way on a tube with 1 nylon screw holding each wing and I have not have a problem. I know these planes are stressed way more than this mustang will be. If your flying this way let me know. Thanks
The wing isn’t exactly constructed perfectly either. You have the internal wing ribs that support the joiner tube, how many of those are of high quality balsa and glued properly? With what I saw in the wing installing the gear, it didn’t look exactly stellar. If you glue the wings together then at least you have a strong joint that doubles up the wing joint and spreads the load out to the sheeting.
12-15-2009, 06:04 PM
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RE: NEW H9 P51 Mustang 60 ARF
The P-51 has a lot higher wing loading than the yak will also. It will prob work, but I agree with bradyb 100%, the wing design between the yak and other similar planes is a lot better most of the time than ARF warbirds, especially H9 warbirds. If I was a slow scale flier I would probably leave it, but I like to go fast and do high speed strafing passes and feel a lot more confident with the wings secure.
I had a P-51 that I did abuse pretty good and after one flight in particular the plane started acting really weird, almost like it was hopping around in the wind but it was calm. When I landed I saw that the nylon bolts had pulled out about 1/4" leaving about 2-3 threads on each holding the wing on. No doubt if I hadn't glued the wings I may very well have lost one with that much pressure. I stopped cutting my wing bolts short after that as well.
Shane
I had a P-51 that I did abuse pretty good and after one flight in particular the plane started acting really weird, almost like it was hopping around in the wind but it was calm. When I landed I saw that the nylon bolts had pulled out about 1/4" leaving about 2-3 threads on each holding the wing on. No doubt if I hadn't glued the wings I may very well have lost one with that much pressure. I stopped cutting my wing bolts short after that as well.
Shane
12-15-2009, 06:49 PM
#442
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RE: NEW H9 P51 Mustang 60 ARF
I agree with the last two post!!! When I saw the way the manual call for mounting the wings, I went old school and glue the wings together. Now if knew what the rib that hold the wing tube was made of and how its is glue in the wing, I may have went with the manual, but, I am old school!!! I have seen to many wings come off in flight and have one of the most nightmare flight!! You know it will crash and you hope it will be in a field and not where people, houses and cars are!! I know that some planes are big and the wings are long to make it easy transpot to and from the field and guy I feel your pain. I just put my P-51 and my Top Flite AT-6 Texan in the back of my Ford Escape and they fit with no room to spare!!! I will never have them in the SUV at the same time, but I now know they will fit!! Now to get some good weather here in the Great Northwest so I can fly this bird!!
Oh well, Merry Xmas everyone!!!
Sonny
aka
jet22b
Oh well, Merry Xmas everyone!!!
Sonny
aka
jet22b
12-15-2009, 06:59 PM
#443
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RE: NEW H9 P51 Mustang 60 ARF
I never even entertained the thought of NOT glueing them together. I know me.....I'll get cocky, start pushing it.
One to many fast snap rolls....or pull out of a hard dive. All she wrote.
but DAM it would be spectacular.
One to many fast snap rolls....or pull out of a hard dive. All she wrote.
but DAM it would be spectacular.
12-16-2009, 02:46 AM
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RE: NEW H9 P51 Mustang 60 ARF
lol yep, full speed inverted dive then tried to snap full down elevator and flip it upright. Didn't work, in fact if it had not been for my altitude I would've crashed. Can you say, "STALL"... 
But hey, it was my first plane (P-51) ever.. I watched those Yaks and Extra's do it all day long and it looked fun..
Shane
But hey, it was my first plane (P-51) ever.. I watched those Yaks and Extra's do it all day long and it looked fun..Shane
12-16-2009, 03:29 AM
#445
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RE: NEW H9 P51 Mustang 60 ARF
Here ya go, here' a plane of mine being built right now that I just had the same discussion with with the builder. He told me that he would build it and I could fly it forever without glueing the wings, and I believe him 110%. BUT I, like jet22, am too old school. Does that count if I've only been flying/building for 4 years.
Anyway, even knowing I could hall this wing around @42" rather than 84 1/2", I still told him too glue it anyway. He beefed up the area around the tube as well as the dihedral braces and surrounding areas. It's a discontinued kit and I can't take the chance here.
Shane
Anyway, even knowing I could hall this wing around @42" rather than 84 1/2", I still told him too glue it anyway. He beefed up the area around the tube as well as the dihedral braces and surrounding areas. It's a discontinued kit and I can't take the chance here. Shane
12-16-2009, 09:34 AM
#446
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RE: NEW H9 P51 Mustang 60 ARF
Great news!
I did the following to lose weight:
• swapped out the wing bolts for nylon.
• cut out the rear bulk heads behind the cockpit and the radiator on the fuse.
• hollowed out the radiator
• did not install the cockpit plastics
• I also used a wood prop
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
I was able to throw away the 4 ounces of lead that were mounted to the engine mount. I still needed the 3 ounces in the cowl though but she balanced nicely at about 4.7 inches.
I ended up at about 10.8 Ibs!
I did the following to lose weight:
• swapped out the wing bolts for nylon.
• cut out the rear bulk heads behind the cockpit and the radiator on the fuse.
• hollowed out the radiator
• did not install the cockpit plastics
• I also used a wood prop
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
I was able to throw away the 4 ounces of lead that were mounted to the engine mount. I still needed the 3 ounces in the cowl though but she balanced nicely at about 4.7 inches.
I ended up at about 10.8 Ibs!
12-16-2009, 01:30 PM
#447
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: Pit-Viper 1
Here ya go, here' a plane of mine being built right now that I just had the same discussion with with the builder. He told me that he would build it and I could fly it forever without glueing the wings, and I believe him 110%. BUT I, like jet22, am too old school. Does that count if I've only been flying/building for 4 years. Anyway, even knowing I could hall this wing around @42'' rather than 84 1/2'', I still told him too glue it anyway. He beefed up the area around the tube as well as the dihedral braces and surrounding areas. It's a discontinued kit and I can't take the chance here.
Shane
Here ya go, here' a plane of mine being built right now that I just had the same discussion with with the builder. He told me that he would build it and I could fly it forever without glueing the wings, and I believe him 110%. BUT I, like jet22, am too old school. Does that count if I've only been flying/building for 4 years.
Anyway, even knowing I could hall this wing around @42'' rather than 84 1/2'', I still told him too glue it anyway. He beefed up the area around the tube as well as the dihedral braces and surrounding areas. It's a discontinued kit and I can't take the chance here. Shane
Shane;
Yes you can call yourself "old school"!!! I can see in the pictures that the guy who is building your next plane is from the "old school" too!!!
Sweet looking plane!!!
Sonny
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jet22b
12-16-2009, 04:24 PM
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: bradyb
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
12-16-2009, 05:10 PM
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: paracanary
Just a head up bradyb. Both my magnets came unglued when removing the canopy. As with everything else, the magnets are poorly glued in.
ORIGINAL: bradyb
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
I’m not sure if I want to admit this but I’ve probably spent a good 40 hours putting this plane together.
12-16-2009, 05:15 PM
#450
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RE: NEW H9 P51 Mustang 60 ARF
ORIGINAL: bradyb
I’ve taken the top hatch on and off so many times that if they would have failed they should have by now. I’ve been watching them.
I’m not sure if I want to admit this but I’ve probably spent a good 40 hours putting this plane together.
ORIGINAL: paracanary
Just a head up bradyb. Both my magnets came unglued when removing the canopy. As with everything else, the magnets are poorly glued in.
ORIGINAL: bradyb
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
• did not use the bolts to hold down the top hatch (blocked off the firewall so I don't get ram pressure popping out the cockpit)
I’m not sure if I want to admit this but I’ve probably spent a good 40 hours putting this plane together.
You are not alone!! 45 hours for me!!!!
Sonny
aka
jet22b