webtech

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Would anyone here be for or against using flaperons on a H-9 P51 .60? If yes, then how do I do the radio setup? I have a Futaba 6exa radio. Any help would be appreciated. I am having a tough time with my landings and thought this might help.

-Webtech

BarracudaHockey

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The H9 Mustang, when properly balanced lands like a trainer. Verify your CG.

As far as flapperons, with wing tip ailerons your inducing wash in which can and likely will lead to tip stall and make your problem worse.

Double check your center of gravity before you go messing with flapperons on that plane.

Richard L.

My Feedback: (24)

I wouldn't use flapperons on this plane. As said above, flapperons will increase the chance of tip stall. With practice, this plane is easy to land, even without power:

* [link=http://www.whitetyphoon.com/rc/dallas_doll/landing_01.wmv]H9 P-51D Landing #1 [/link] - deadstick
* [link=http://www.whitetyphoon.com/rc/dallas_doll/landing_02.wmv]H9 P-51D Landing #2[/link]

Phantom pty

Richard

Nice Landing on the video,

What engine are you using on this plane..? YS ? 91 or 110

What brand in retracts?

I looked like 3 blade propeller what kindwho makes it?...

Richard L.

My Feedback: (24)

This H9 Mustang belongs to my buddy Mark S. He did the landing in the videos. The Mustang has a Saito 100 and Robart 551RS retracts with 7/16" offset RoboStruts. As for the prop, it is 2-blade. I will never use a 3-blade prop on a P-51D.

kma

My Hanger 9 Mustang lands great with the stock retracts and if a 13 year old can land it smooth you should have no problem landing.

Richard L.

My Feedback: (24)

Yes, it's all in the thumbs. Some older folks don't have as much manual dexterity and hand-eye coordination as younger kids.

Tsutomu Mabuchi

My Feedback: (1)

I'm for barracudahockey and Richard L.
H9 P-51 lands easily without flaps.
Check the C.G and the elevator travel amount again.
And flaperon on wing tip aileron is a danger.

Tsutomu Mabuchi

BarracudaHockey

My Feedback: (11)

Let me add that I have a 9CH computer radio and always install 2 aileron servo's in my planes. I like nothing more than fiddleing with configuring mixing and seeing its effects in flight. So I tell you from no small mount of experiance, I would not even consider setting up my Miss America with flaperon mixing.

rc34074

My Feedback: (5)

webtech- can you describe exactly what the "tough time" is that you are having on your landings? you might get more help here.

ed

Tsutomu Mabuchi

My Feedback: (1)

And you must not reduce airspeed too much on landings.
Too slow speed approach with idle thrust may cause that you
can not flare for good landing.
For enough flare, you have to keep airspeed or keep throttle
a little open for the elevator to act.

Tsutomu Mabuchi

Cyclic Hardover

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You know I have a couple planes with flaps. I never use them but they are just a simple conversation piece towatch move up and down.

Richard L.

My Feedback: (24)

Heavier Top Flite warbirds land much better with flaps than without. When properly used, flaps can significantly increase the lifespan of these planes or their retracts:

* [link=http://www.whitetyphoon.com/rc/vq_p40/movies/landing.wmv]TF P-40 Landing[/link]
* [link=http://www.whitetyphoon.com/rc/swift_p47/landing.wmv]TF P-47 Landing[/link]
* [link=http://www.whitetyphoon.com/rc/darius_fw190/landing.wmv]TF FW190 D9 Landing[/link]

Here is the difference in landing speed with and without flaps:

* [link=http://www.whitetyphoon.com/rc/vq_p40/movies/landing.wmv]VQ P-40 Landing with Flaps[/link] - slow and stable
* [link=http://www.whitetyphoon.com/rc/vq_p40/movies/landing_17.wmv]VQ P-40 Landing without Flaps[/link] - hot and not as stable
* [link=http://www.whitetyphoon.com/rc/vq_p40/movies/landing_18.wmv]VQ P-40 Landing without Flaps[/link] - hot, unstable

Of course, these are real flaps, not flaperons.

Richard L.

My Feedback: (24)

I took my H9 .60 size Mustang out for its maiden flight today:

* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/take_off.wmv]Maiden Take Off[/link]
* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/landing01.wmv]Maiden Landing[/link]
* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/landing02.wmv]Landing #2[/link]

Neither flaps nor flaperons were needed.

Richard L.

My Feedback: (24)

Got some more videos on the second day at the field (with less wind). This plane flies and lands like a dream.

* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/take_off03.wmv]Take Off #3[/link] - always thrive for a scale take off
* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/landing03.wmv]Landing #3[/link] - I used too much elevator to force the tail down at the end, so the plane floated up a little

* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/take_off04_scale.wmv]Take Off #4[/link] - scale baby!
* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/landing04.wmv]Landing #4[/link] - I let the tail drop down gradually here

* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/take_off05.wmv]Take Off #5[/link] - not as nice as #4
* [link=http://www.whitetyphoon.com/rc/h9_mustang/videos/landing05.wmv]Landing #5[/link] - I think I got the hang of it

fldmshlschroe

My Feedback: (3)

richard,

you have any videos of any of your cmp planes...... I am thinking about getting the new cmp p-40.... would just like to see how they fly... any comments would be appretiated..
thanks

Richard L.

My Feedback: (24)

My CMP planes flew pretty well. Here are some videos of my Hellcat:

* [link=http://www.whitetyphoon.com/rc/cmp_hellcat/movies/simul_fly_by.wmv]Fly By[/link]
* [link=http://www.whitetyphoon.com/rc/cmp_hellcat/movies/simul_loops.wmv]Loop[/link]
* [link=http://www.whitetyphoon.com/rc/cmp_hellcat/movies/roll.wmv]Roll[/link]
* [link=http://www.whitetyphoon.com/rc/cmp_hellcat/movies/flip_inverted.wmv]Flip Inverted[/link]

fldmshlschroe

My Feedback: (3)

would you say it is easier to fly than your vq p-40???

thanks,
john

Richard L.

My Feedback: (24)

It's about the same.

ece8893

Dear ALL,  I have a query although I am referring to a different brand of P51 butstill 60 size.  I have World Model P51 size 60 (Model A155), installeda 3-blade prop 14 x 9, installed an engine OS 110FS-a.  Plane weightapprox 4.2 KG.  I think OS 110FS-a RPM range is from 2000 to 11000.
Someone told me not to reach 80% of the max RPM at ground (full throttle) which another expert confirm the RPM issue.

At ground, RPM full throttle is 8000.

Can I have your technical expertise if my set-up (prop, enginem size)is alright or shall I go back to 2-blade 15x8?  3-blade looks nicer.

Thanks.

RCGuy41

ece8893,

Of course a three bladed prop is nice while the aircraft is on deck, but for my money I would go back to a two bladed prop, the reasoning is a two bladed prop is more efficient and you will get better high end RPM from your engine. Your OS 110 FS is a quality engine and can be run at it's max RPM rang, so set your low speed needle at (the needle inside your throttle arm) 2000 to 2500 RPM. The high speed needle which is on the other side of the carburetor is used to set your high engine speed which is dependent on your prop size, so for break in I would use a 13X6 prop and once the engine has had two to three tanks of nitro fuel through the engine, change to a 14X6 to 8 prop (two blade prop.) I would also recheck your RPM at high speed, but since you live in a hot and dry climate I wouldn't run my engine at full RPM rang. I have visited the UAE (Abu Dhabi and Duhbi) many years ago. Try to set your top RPM rang at aproximately 9000 RPM, if the engine is too rich you could actually flood the engine during transition from low to high speed. This is just my own humble opinion and it's always good to get as much information from other modelers.