RE: P-6E Curtis hawk (build thread)  
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RE: P-6E Curtis hawk (build thread) - 3/5/2007 11:31:45 PM   
metaldriver


 

Posts: 13
Joined: 8/27/2005
From: Louisville, KY, USA
Status: offline 		Just a quick question fellows, has anyone tried this plane with the st .90 or something similiar as all I can see is 120 4s or better?

(in reply to Skinny Bob)
       Post #: 1126

RE: P-6E Curtis hawk (build thread) - 3/5/2007 11:38:34 PM   
mass balance



Posts: 25
Joined: 11/8/2004
From: Tyler, TX, USA
Status: offline 		Great information, thanks guys! Last time I looked, Adam was recommending that people call Brillelli for a muffler so I will go that route and give Scott a call. It's no hurry since another plane is in the assembly line ahead of the Hawk. I'll check the choke lever also as thevirginian suggests. If I could remove the choke altogether I might consider it - the BCMA 40 with the Zama carb does great w/o a choke and I am using an RCATs relay for a remote kill switch. My Sport 26 has a Walbro carb though, so I'll have to look at it.

mass balance

(in reply to Skinny Bob)
       Post #: 1127

RE: P-6E Curtis hawk (build thread) - 3/6/2007 12:17:40 AM   
Skinny Bob



Posts: 493
Joined: 10/19/2002
From: Auburn, KY, USA
Status: online 		mass balance, by all means call Scott. A great guy that will help you all he can. I forgot to mention the choke, I cut the lever off of mine and hacksawed a screw driver slot in the head of the shaft. I then cut a small hole in the bottom of the cowl under the carb for choke access. I also cut an elongated hole under the carb needle valves for easy access to them with a small screw driver. Has worked out very well for me. I suggest you keep the choke, especially if you want to flip start your engine. If you think about it most gasoline engines have a choke, 2 and 4 cyl. Guys who don't have a choked engine are always talking about various methods of choking the engine, I am sure you have heard them all. My Brillelli didn't have a choke when I bought it, I later replaced it with a carb that does. I believe Scott has choked carbs on all his engines now. I may be wrong about that. Ask Scott. Enough of my rambling.

Regards


_____________________________

Skinny Bob - AMA 713081
WACO Brotherhood #10

(in reply to mass balance)
       Post #: 1128

RE: P-6E Curtis hawk (build thread) - 3/6/2007 12:38:02 AM   
Skinny Bob



Posts: 493
Joined: 10/19/2002
From: Auburn, KY, USA
Status: online 		Yes, somewhere in this thread someone talked about running a 90. Not sure how it worked out. Great Planes says 90 - 120 four stroke, why wouldn't it be ok? I'm sure they tested it.

Have fun


_____________________________

Skinny Bob - AMA 713081
WACO Brotherhood #10

(in reply to metaldriver)
       Post #: 1129

RE: P-6E Curtis hawk (build thread) - 3/6/2007 2:30:00 AM   
thevirginian


 

Posts: 1286
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		metaldriver,
A 90 in the Hawk is like a Ford Pinto with a banana in its tail pipe. Forget it . The minimum engine is a 120.
skinny Bob, I certainly will post pictures of the new muffler, once I have receive it.
mass balance, I will keep my choke for sure. I just had to cut the shaft off to the minimum. That's the only thing I dislike on this motor: the choke ass'ly is on a plastic shaft and I don't know how to take it apart. There is no screw to hold the butterfly on to the shaft.

(in reply to Skinny Bob)
       Post #: 1130

RE: P-6E Curtis hawk (build thread) - 3/7/2007 5:30:55 AM   
metaldriver


 

Posts: 13
Joined: 8/27/2005
From: Louisville, KY, USA
Status: offline 		I was talking .90 2 stroke and as for it not being enough to fly the plane I have to disagree as mine flys quite well with it. Not unlimited on the verticals but neither was the full scale one.

(in reply to thevirginian)
       Post #: 1131

RE: P-6E Curtis hawk (build thread) - 3/8/2007 2:00:12 AM   
GaGeeBees



Posts: 525
Joined: 9/26/2004
From: Fayetteville, GA, USA
Status: online
quote:

ORIGINAL: thevirginian

metaldriver,
A 90 in the Hawk is like a Ford Pinto with a banana in its tail pipe. Forget it . The minimum engine is a 120.
skinny Bob, I certainly will post pictures of the new muffler, once I have receive it.
mass balance, I will keep my choke for sure. I just had to cut the shaft off to the minimum. That's the only thing I dislike on this motor: the choke ass'ly is on a plastic shaft and I don't know how to take it apart. There is no screw to hold the butterfly on to the shaft.


It'll fly with a .90 four stroke too. It just flies better with a 1.20. I think a .90 RCV would be an interesting experiment. It would swing a large prop.

_____________________________

...and then the unthinkable happened!

(in reply to thevirginian)
       Post #: 1132

RE: P-6E Curtis hawk (build thread) - 4/9/2007 1:34:01 AM   
thevirginian


 

Posts: 1286
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Well, I finally received my rear dumb muffler for my Brillelli 26SS. As ususal Scott did a great job. The muffler fit perfectly although it's quite large for this small gasser. Since the muffler was the only thing I was missing for my "second" maiden flight, she was ready for it the next day. Although the wind was howling from the west with 15-20 I had to fly her. I waited for this flight 'til later in the afternoon and was lucky as the wind eased off. Upon take off I instantly felt the extra power of the Brillelli compared to my other motor, the FPE 1.3 I had installed before. I also switched from a two bladed prop (16x8) to a three bladed prop with 15x7 just for the scale looks. I have not tached the motor yet, but I can tell from the sound it's turning well over 7K. So far I am very happy with this engine choice, since this motor is a featherweight for its diplacement. Whatever Scott does to these engines, it seems to be the proper tuning. I certainly will purchase more motors from him for my future projects. The Hawk flew nicely before, but now I can feel its real value.

(in reply to GaGeeBees)
       Post #: 1133

RE: P-6E Curtis hawk (build thread) - 4/9/2007 2:00:23 AM   
flyfisher431


 

Posts: 119
Joined: 2/4/2006
From: Chugiak, AK, USA
Status: offline 		Congratulations Virginian,

Sounds like the hawk is doing you proud. I' Figure It wioll be mid May when I start work on mine.

Ben

(in reply to thevirginian)
       Post #: 1134

RE: P-6E Curtis hawk (build thread) - 4/9/2007 2:29:32 AM   
thevirginian


 

Posts: 1286
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		As usual I forgot to attach the promised picture of my new muffler. Here it is now.

Attachments
Click to see fullsize image.
Click for fullsize

(in reply to thevirginian)
       Post #: 1135

RE: P-6E Curtis hawk (build thread) - 4/9/2007 6:23:07 PM   
jcw111


 

Posts: 153
Joined: 12/11/2001
From: Phoenix, AZ, USA
Status: offline 		While on the subject of Exhausts again I would like to offer assistance to anyone considering rtro fitting a Kelio exhaust to a HAWK. I did mine a few months ago and could have used a few suggestions other than those offered by Kelvin in his instructions. While it is pretty straight forward Getting the alignment of the stacks to a cowl that has already been mounted can be a real challenge. Finally got it right and it sure makes a world of difference in the scale looks of the plane. The engine is a FS OS 120 and is plenty of power for real scale like flight speed. Kelvin did a great job with the exhaust as has been mentioned in earlier posts.

So if anyone is considering the above rather than re-inventing the wheel----I would be happy to supply pics and comments.

Jim Whitney

(in reply to thevirginian)
       Post #: 1136

RE: P-6E Curtis hawk (build thread) - 4/9/2007 6:46:50 PM   
jcw111


 

Posts: 153
Joined: 12/11/2001
From: Phoenix, AZ, USA
Status: offline 		Forgot to mention in the above post----------I am using the Spectrum DX 7 radio with no problems at all. Solid as a rock.

Jim Whitney

(in reply to jcw111)
       Post #: 1137

RE: P-6E Curtis hawk (build thread) - 4/9/2007 10:16:16 PM   
flyfisher431


 

Posts: 119
Joined: 2/4/2006
From: Chugiak, AK, USA
Status: offline 		Jim
By all means I am a fan of not reinventing the wheel. My Hawk exhaust should be here in the next few weeks so if you have pictures and words of wisdom by all means please post them. BTW I'll be using a Evoulution 26GT for my engine.

Ben

(in reply to jcw111)
       Post #: 1138

RE: P-6E Curtis hawk (build thread) - 4/10/2007 1:02:57 PM   
thevirginian


 

Posts: 1286
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		flyfisher,
you may want to check for any interference of the carboretor with the cowl, before you mount the motor. As far as I know the Evo 26GT has its carb situated like a two stroke glow engine, up front. But since the carb is quite bigger than a glow engine carb, you may check for proper clearence.

(in reply to flyfisher431)