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Author Topic: P-Force XL  (Read 40534 times)

Offline MikeyPratt

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P-Force XL
« on: February 13, 2016, 02:52:16 PM »
Attached is an colored AutoCad rendition.  It is a bigger version of the Primary Force with a 58" wing span and 644 sq. in. of wing area.  Powered with either glow or electric.   .46 to .51 glow, or E-Flighr to 25 along with a 5 cell 2700 mHl pack.

The P-Force XL has many new features such as, thicker wing, stabilizer triplets, wing or fuse mounted landing gear.  The profile fuse is built-up that is very stiff and strong, and light weight.  It resist tail twisting in ruff weather that is common to many profile fuselage models.  This provides crisp, and sharp corners with a sold feel and grove.

Hope you like the P-Force XL,  Mikey
« Last Edit: February 14, 2016, 06:35:49 AM by MikeyPratt »


Offline scott v.

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Re: P-Foece XL
« Reply #1 on: February 13, 2016, 04:47:42 PM »
Hi Mike,  Will Plans/kits be available ?

Thanks, Scott

Offline MikeyPratt

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Re: P-Foece XL
« Reply #2 on: February 13, 2016, 05:20:54 PM »
Hi Mike,  Will Plans/kits be available ?

Thanks, Scott

Hi Scott,
The plans are close to being done, I have the prototype laser cut wing that I building to make sure everything fits as it should.  If all goes well maybe April but I don't release kits until I'm sure they're good to go. I've had so many inquires about the XL, I posted a thread so people could see what it looks like.

What do you think about it and how does it look to you?

Later,
Mikey

Offline Tim Wescott

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Re: P-Foece XL
« Reply #3 on: February 13, 2016, 06:07:10 PM »
It looks good.

I'm not going to be building much other than PA ships for a while, so treat this as you would any other arm-chair coaching:

Having read a bunch of threads pertaining to profiles, and having competed with profiles here in the Pacific Northwest, I think you might want to consider making a 1/2" thick fuse version and a 3/4" fuse version, or include enough bits to make both.  Why?  Because if you put the extra 1/4" in the inner structure where it doesn't add much weight, the thicker fuse version will be a lot stiffer.  In those parts of the world that allow it, it's what people will want.

Just my $0.02...
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The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline wwwarbird

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Re: P-Foece XL
« Reply #4 on: February 13, 2016, 09:31:16 PM »

 Psst, hey Mikey, you might want to go back edit your title to the post here.

 Plane looks great, and it should be a great performer. y1
Narrowly averting disaster since 1964! 

Wayne Willey
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Offline Bootlegger

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Re: P-Force XL
« Reply #5 on: February 14, 2016, 11:39:14 AM »

 Mickey, I am looking forward to seeing a set of plans/kit also. Keep us posted.. #^ #^ #^
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Offline Allan Perret

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Re: P-Force XL
« Reply #6 on: February 14, 2016, 06:18:45 PM »
Looks good but, on a ship this big I would prefer if it had flaps.
Allan Perret
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Offline wwwarbird

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Re: P-Force XL
« Reply #7 on: February 14, 2016, 09:55:07 PM »
Looks good but, on a ship this big I would prefer if it had flaps.

 Have you ever flown a well built Primary Force? If not, you'd likely be surprised. y1
Narrowly averting disaster since 1964! 

Wayne Willey
Albert Lea, MN U.S.A.
IC Aircraft Modeler, Ex AMA member

Offline Allan Perret

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Re: P-Force XL
« Reply #8 on: February 15, 2016, 09:49:43 AM »
Have you ever flown a well built Primary Force? If not, you'd likely be surprised. y1
About 50 flights on this one I built from kit.
Allan Perret
AMA 302406
Slidell, Louisiana

Offline MikeyPratt

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Re: P-Force XL
« Reply #9 on: February 20, 2016, 10:56:09 AM »
Looks good but, on a ship this big I would prefer if it had flaps.

Hi Allan,
The Primary Force you have built is outstanding and appears to be well done.  My thinking on flaps is, they complicate the trimming process for most modelers.  Also, the turn rate is as good (if not better) than many of classic or modern models.  You can always add flaps to your P-Force and see what happens, but in my opinion, it will kill the turn rate and degrade the all around performance.

The P-Force XL has a number of improvements (and size does matter) light weight, proper airfoil, TVC, and HD control system.  The LA 46 is ample power and is a hoot to fly, and pops a corner that has to be seen. 

Later,
Mikey     

Offline Allan Perret

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Re: P-Force XL
« Reply #10 on: February 24, 2016, 07:51:45 AM »
Hi Allan,
The Primary Force you have built is outstanding and appears to be well done.  My thinking on flaps is, they complicate the trimming process for most modelers.  Also, the turn rate is as good (if not better) than many of classic or modern models.  You can always add flaps to your P-Force and see what happens, but in my opinion, it will kill the turn rate and degrade the all around performance.

The P-Force XL has a number of improvements (and size does matter) light weight, proper airfoil, TVC, and HD control system.  The LA 46 is ample power and is a hoot to fly, and pops a corner that has to be seen. 

Later,
Mikey     
Know what you mean about popping a corner, my P-Force does also.  On the XL, is wing constant chord or tapered ?
Allan Perret
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Offline scott v.

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Re: P-Force XL
« Reply #11 on: February 24, 2016, 03:39:11 PM »
Hi Mikey,  I think it looks great!

Look forward to being able to build one.

Scott V.

Offline MikeyPratt

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Re: P-Force XL
« Reply #12 on: February 26, 2016, 10:34:43 AM »
Know what you mean about popping a corner, my P-Force does also.  On the XL, is wing constant chord or tapered ?

Hi Allan,
It is tapered, both the leading & trailing trailing edges.  Glad you are happy with the corner on the P/F it's a great flying model.  The XL is better for a lot of reasons, but mostly from lighter. weight and stiffness.  The airfoil is thicker with a constant radius leading edge (same as P/F) with leading edge sheeting & cap strips.  It is really stiff and robust both the wing and the fuselage.  The fuselage takes a little longer to build because of it's balsa sheeted fuselage sides and built up warren-truss bracing (very light weight).

Keep watching SH forum for building photos.

Later,
Mikey
« Last Edit: March 03, 2016, 11:09:52 AM by MikeyPratt »

Offline gordon tarbell

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Re: P-Force XL
« Reply #13 on: February 27, 2016, 10:35:33 AM »
What is the P/Ff ?
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Offline Fredvon4

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Re: P-Force XL
« Reply #14 on: February 27, 2016, 03:38:35 PM »
Mikey  sent an e-mail about the normal PF...  no response yet

I want/desier to buy a short kit of the original sizeded PF
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline MikeyPratt

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Re: P-Force XL
« Reply #15 on: March 03, 2016, 11:12:38 AM »

Offline Allan Perret

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Re: P-Force XL
« Reply #16 on: March 24, 2016, 12:32:18 PM »
Are you taking orders for the P-Force XL, I want one..
Allan Perret
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Offline Dane Martin

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Re: P-Force XL
« Reply #17 on: March 25, 2016, 06:55:10 PM »
What is the P/Ff ?

A free flight version?
Lol, a guy can dream, right?

Offline MikeyPratt

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Re: P-Force XL
« Reply #18 on: March 27, 2016, 01:48:24 PM »
Are you taking orders for the P-Force XL, I want one..

Hi Allan,
Getting closer and should start posting photos next week of the build.

Later,
Mikey

Online George Grossardt

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Re: P-Force XL
« Reply #19 on: April 11, 2016, 05:44:26 AM »
I'm interested.  What's the status?

George

Offline MikeyPratt

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Re: P-Force XL
« Reply #20 on: April 12, 2016, 07:47:06 PM »
I'm interested.  What's the status?

George

Hi George,
I found a big problem with the wing plan.  I fixed the CAD drawing and I'm now having the plan reprinted to start building it again.  I could have left it and changed it later but I'm doing this build for the instruction book and taking photos, I wanted the plan right.

Stay Tuned,
Mikey

Online George Grossardt

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Re: P-Force XL
« Reply #21 on: April 13, 2016, 07:09:47 PM »
Hi George,
I found a big problem with the wing plan.  I fixed the CAD drawing and I'm now having the plan reprinted to start building it again.  I could have left it and changed it later but I'm doing this build for the instruction book and taking photos, I wanted the plan right.

Stay Tuned,
Mikey

Got it.  Looking forward to seeing one built.  I have an OS LA 46 that needs a home.

Offline MikeyPratt

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Re: P-Force XL
« Reply #22 on: April 18, 2016, 07:48:54 AM »
Got it.  Looking forward to seeing one built.  I have an OS LA 46 that needs a home.

Hi George,
My prototype foam wing model flies really well with a LA 46 and its not all that light at 54 ounces.  I've changed to 11-1/2" X 4.25 three blade prop which is even better.  The APC 12"X 3.75 two blade was working pretty good but the 3 blade made it really come to life.

Yea I'm really looking forward to start building the XL and see just where it winds up weight wise.  My thinking now it should come in the 48 to 50 ounce range.  Also, I'm going to try a different type of covering and painting method and see how that goes.

Later,
Mikey

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Re: P-Force XL
« Reply #23 on: April 25, 2016, 10:58:06 PM »
I'm debating on making a vacuum bagged carbon over foam control line model. Instead of going with my own design, using an established design seems like a good idea, as does going flapless....
That being said, the PF-XL seems like the perfect design to build in an all composite air frame. I'd be happy to buy a plan from you.
Please let me know when the plan will be available, Mike.
Kind regards,
Chris Behm
Regards,
Chris

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Offline Tim Redelman

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Re: P-Force XL
« Reply #24 on: August 08, 2016, 03:51:56 PM »
Yo Mikey any news?  Plans ready yet?

Offline MikeyPratt

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Re: P-Force XL
« Reply #25 on: August 10, 2016, 10:00:43 AM »
Yo Mikey any news?  Plans ready yet?

Hi Tim,
Things are at stoping point, with life gets in the way of things.  My wife (Lois) has brain cancer and most of my time is used to take care of her.  She has gone through all the treatments (chemo & radiation) with the Doctor telling us there is nothing further that they can do.  As soon as I can I'll get back on this and get it done.  The sales of the Primary Force are about all I can handle at the moment (still very strong).
The plans are close and I've even had the the parts Laser cut with some assembly started with a few photos taken.  So pretty slow going at this point.

Later,
Mikey

Offline Fredvon4

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Re: P-Force XL
« Reply #26 on: August 10, 2016, 12:16:27 PM »
hey Mike....

I am NOT in line for the PF XL---- but just want to say..You and family are in our prayers

AND ----the PF kit you sent me earlier is nearing completion...what a great kit and instructions

I can NOT wait to maiden this plane

Thank you Fred, we could use a few.  Good luck and please send photos when finished.

« Last Edit: August 10, 2016, 08:46:25 PM by MikeyPratt »
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Tim Redelman

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Re: P-Force XL
« Reply #27 on: August 18, 2016, 12:27:25 PM »
I'm sorry Mike I didn't know. Let me know it'll I can help in any way...

Tim

Offline MikeyPratt

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Re: P-Force XL
« Reply #28 on: August 19, 2016, 12:24:12 PM »
I'm sorry Mike I didn't know. Let me know it'll I can help in any way...

Tim

Thanks Tim & Fred,
At this point it's all in the hands of the big guy upstairs.  Lois is pretty low in spirits and wants it all to be over with, she is really worn out and dog tired.  Nothing worse than sitting on my hands with nothing I can do to help her.

Later,
Mikey

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Re: P-Force XL
« Reply #29 on: August 19, 2016, 06:27:45 PM »
Best wishes to you both.
Hang in there.
Kind Regards,
Chris
Regards,
Chris

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Offline Fredvon4

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Re: P-Force XL
« Reply #30 on: August 26, 2016, 11:51:18 AM »
Mike
I know there is another thread on this.....but I just want to add here

We are very sorry for your loss and pray you and your family endure this terrible time and grief without any pressures from your customers and outside obligations

I think I can safley say that we all hope and pray the very best for you and your family
"A good scare teaches more than good advice"

Fred von Gortler IV

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Re: P-Force XL
« Reply #31 on: August 26, 2016, 02:25:33 PM »
+1.

Condolences. Don't worry about models right now. Be with family and friends and love each other.

Kind Regards,
Chris
Regards,
Chris

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