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General control line discussion => Open Forum => Topic started by: Mike Griffin on September 24, 2017, 10:19:33 AM

Title: Doing some research
Post by: Mike Griffin on September 24, 2017, 10:19:33 AM
Now that I have gotten the .15 engine, I have to decide which .15 size model to build and put it in.  Out of all the kits I have put out over the years, I never produced one smaller that a .25 size.  I would appreciate some ideas from you all who have built a flown .15 sized models.  I do know that the Shark .15 seemed to be a popular one but would like as many suggestions as you all can come up with.

Thank you
Mike
Title: Re: Doing some research
Post by: Carl Cisneros on September 24, 2017, 10:30:50 AM
Mike

I really like my Sig Akromaster.
Mine has an Enya 15 on the front and I built mine with the FULL LENGTH shaped and notched leading edges
to give it more wing area. I just cut out a few ribs and glued them in place and that is all.

Flies a treat for me.  52'  .012" lines


Carl
Title: Re: Doing some research
Post by: Mike Griffin on September 24, 2017, 10:58:32 AM
Thank you Carl.  I will take that into consideration and read up on it.  I am assuming that you can still buy the kit from SIG.

Mike
Title: Re: Doing some research
Post by: JoeJust on September 24, 2017, 11:01:21 AM
My offering is one that des it all for me, A Ringmaster Jr. Mine is powered by a McCoy RH .19.

Joe
Title: Re: Doing some research
Post by: Dennis Toth on September 24, 2017, 11:05:48 AM
Mike,
If you take something like the Shark 15 flapped version as a base, bring the tail volume and moment to current numbers would be a very good airplane. For unflapped you could use the jr Flite Streak, again adjust the tail volume and moment.

Best,    DennisT
Title: Re: Doing some research
Post by: Mike Griffin on September 24, 2017, 11:29:37 AM
My offering is one that des it all for me, A Ringmaster Jr. Mine is powered by a McCoy RH .19.

Joe

Thank you Joe
Title: Re: Doing some research
Post by: Mike Griffin on September 24, 2017, 11:30:17 AM
Mike,
If you take something like the Shark 15 flapped version as a base, bring the tail volume and moment to current numbers would be a very good airplane. For unflapped you could use the jr Flite Streak, again adjust the tail volume and moment.

Best,    DennisT

Thank you Dennis

Mike
Title: Re: Doing some research
Post by: Guy B Jr on September 24, 2017, 10:51:51 PM
As I stated before, RSM has a .15 size P-51 w/flaps, designed for use as a stunt trainer. When my UKEY .15 dies, I will put the LA-.15 in the P_51.
Title: Re: Doing some research
Post by: Mike Griffin on September 25, 2017, 08:36:07 AM
Thank you all for the suggestions.  Somebody asked me if I was asking to put out a .15 size kit of some kind and the answer is no.  This is just for me to have some fun with.  I am just not that familiar with the availability of .15 size models.

Mike
Title: Re: Doing some research
Post by: Larry Renger on September 25, 2017, 09:30:22 AM
Magician 15, but with lighter structure. Shark 15 is also excellent.

I have scored 500+ points with the RSM P-51 and won a scale trophy with another one. Both electric versions, Slime power should be even better.

Or I can send you the plans for my Skyfire .15  ;D
Title: Re: Doing some research
Post by: Mike Griffin on September 25, 2017, 10:34:03 AM
Magician 15, but with lighter structure. Shark 15 is also excellent.

I have scored 500+ points with the RSM P-51 and won a scale trophy with another one. Both electric versions, Slime power should be even better.

Or I can send you the plans for my Skyfire .15  ;D

Larry I am not familiar with the Skyfire.  I would like to see it whether I built it or not.  Can you e mail a picture to me at mikegriffin1947@gmail.com ?
Title: Re: Doing some research
Post by: Mike Griffin on September 25, 2017, 10:35:51 AM
By the way, I have built two of RSMs .15 size electric P51 and they are great flying models.  I was wanting to do something different. 

Mike
Title: Re: Doing some research
Post by: Jason Greer on September 25, 2017, 01:42:40 PM
Maybe a Jr. Nobler?
Title: Re: Doing some research
Post by: Scott Richlen on September 25, 2017, 02:22:29 PM
I like that last suggesiton: a Jr. Nobler built light.  Would an LA-15 pull it (might be a bit much)?

How about this one:  Dale Kirn's Zeroette!  I've always wanted to build one of those.  Make a molded fuselage instead of a carved block fuselage.  Could be fun!
Title: Re: Doing some research
Post by: Mike Griffin on September 25, 2017, 03:05:02 PM
Hi Scott.  I have never heard of the Zeroette.  Is it a scaled down version of the Jap Zero?

Mike
Title: Re: Doing some research
Post by: Scott Richlen on September 25, 2017, 03:11:28 PM
Here you go!  I've always liked it.

I think that Aero-Fred has the plans.
Title: Re: Doing some research
Post by: Phil Spillman on September 25, 2017, 03:28:06 PM
HI Mike, Somewhere about 2001 or 2 a friend of mine reduced the plans for the Barnstormer and made it a profile! I flew it for him the first flight and right off the board did the entire PA Pattern! It was powered by an LA .15 with a Muffler but not on pressure. It flew great! I bought it back from the next owner two years ago and haven't had it out as yet but soon! Like maybe this week if Maria gets out of here and quiets down the breezes!

Phil Spillman
Title: Re: Doing some research
Post by: M Spencer on September 25, 2017, 08:38:51 PM
(https://outerzone.co.uk/images/_thumbs/plans/1633.jpg)

It Even Does Octagonal Loops . Of course , if your a kid & you read the article , you have to try that !
Suits a feather touch on the controls . 50's with a .15 , 60s with a .19 or schnurle 15 maybe .

Use riblets half bay , and nose doubler . Basically a Flite Streak . or V.c.V. .
Title: Re: Doing some research
Post by: Serge_Krauss on September 25, 2017, 08:58:23 PM
Peacemaker - why not?! You kitted it, Mike, and I have mine mostly complete (I'm sidetracked flying and repairing now, but will get it done). Everyone who has ever had one seems to rave about it. One thing though: the original spars seem the way to go! 'wish I had a contemporary .15 too. - SK

P.S. 'also added a nose tripler (cowl cheek) and will have to re-engineer a tank to fit.
Title: Re: Doing some research
Post by: Randy Cuberly on September 26, 2017, 12:44:42 AM
Well just for grins, Brodak has a kit of a very cute little airplane called The CUB!  It looks for all the world like a scaled down Geiseke Bear.  I have one of the kits but haven't started it yet.  275 sq in probably just right for a good FP15 or LA15.

Supposed to be a really good flier.

The Peacemaker would probably be my choice for a Profile!  But then I hate "Profiles"!

Randy Cuberly
Title: Re: Doing some research
Post by: Brent Williams on September 26, 2017, 01:25:51 AM
Mike, have you identified your goals for what you want from your .15 sized plane?  Just about anything will fly in a circle. 

Title: Re: Doing some research
Post by: Dennis Leonhardi on September 26, 2017, 02:59:10 AM
Magician 15, but with lighter structure. Shark 15 is also excellent.

I have scored 500+ points with the RSM P-51 and won a scale trophy with another one. Both electric versions, Slime power should be even better.

Or I can send you the plans for my Skyfire .15  ;D

Larry, tell us about your Skyfire 15!  Everything you've designed seem to be good flyers ...

Dennis
Title: Re: Doing some research
Post by: frank mccune on September 26, 2017, 05:50:29 AM
     Hi Mike:

      May I suggest the Shark .15? I have flown these planes many times with a variety of engines and have nothing but good to say about them!

       They have been powered by the following engines and all have performed very well:

ST G15
ST G20/.15 both glow and Diesel
ST G20/.23
ST G.15 RVD
Fox .15 p.b.

       The plane has 270 sq. in. and flaps which makes it a very good performer.  Even with the lowly Fox.15, with a 7x6 or 8x4 prop  the plane was a treat to fly.  I used .012x52' lines that worked very well.  I flew one many times by myself by using a stooge to help launch the plane.  Kits are still available from various sources.

     Try a Shark 15 and I am sure that you will be satisfied!

                                                                                                          Good luck.

                                                                                                          Frank McCune

Title: Re: Doing some research
Post by: Larry Renger on September 27, 2017, 12:25:07 PM
Per request, here is a .pdf of the Skyfire 15 drawing. I also have the same thing in 1/2A, .25 and .40 scale ups. Only the 1/2A model has been built, but it was a contest winner several times in the hands of myself, Kieth Trostle and Bart Klapinski.  ;D

The original drawing is a .dwg AutoCAD file. I think I sent it to Eric Rule, if not I certainly can.   H^^
Title: Re: Doing some research
Post by: Fredvon4 on September 27, 2017, 01:25:37 PM
Mike I have always like Eric's kit of the Sky Sport... looks easy to scale up a bit....for the mid size engine

But I think the Peace Maker mentioned above fits what I know of your casual flying fun...

Hell just get Robert Z to scale down a Stunt Rocket for you and scratch build a unique stunt plane

Better yet...you are crafty...take three or four designs you like and make your own ---MIKE'S Plane

Hell buddy Eric will cut you any rib profile you desire
Title: Re: Doing some research
Post by: Larry Renger on September 27, 2017, 05:00:08 PM
Eric should have a .15 size version of the Sky Sport available. Andy Borgogna made one several years ago.
Title: Re: Doing some research
Post by: Dennis Leonhardi on September 29, 2017, 07:11:39 AM
Per request, here is a .pdf of the Skyfire 15 drawing. I also have the same thing in 1/2A, .25 and .40 scale ups. Only the 1/2A model has been built, but it was a contest winner several times in the hands of myself, Kieth Trostle and Bart Klapinski.  ;D

The original drawing is a .dwg AutoCAD file. I think I sent it to Eric Rule, if not I certainly can.   H^^

Thanks for posting Larry; I thought it might be a "scaled-up" version of the (Cox foam wing) kitted by M&P.

If I may ask: what's your thought (and results) on the swept-forward wing?

Dennis
Title: Re: Doing some research
Post by: Larry Renger on September 29, 2017, 11:49:51 AM
They can go to higher lift angles without stallling and never tip stall.

I have published two other forward swept designs, the Toucan slope glider and Sky Streak CL stunt model.
Title: Re: Doing some research
Post by: Fredvon4 on October 02, 2017, 11:30:10 AM
Mike I know you are re-releasing the .15 Peace Maker

But I was looking for something about Primary Forces,  and saw your 3 at a time Primary Force builds and was thinking Mike Pratt might have a scaled DOWN version