RE: rich model keecat.60 size kingcat with retracts  
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RE: rich model keecat.60 size kingcat with retracts - 7/27/2007 2:07:00 AM   
i live for 3D



Posts: 529
Joined: 5/8/2005
From: miami, FL, USA
Status: offline
quote:

ORIGINAL: MMallory

APC has a 14x6.

on this plane you only have the ground clearance for a 12 inch prop

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RE: rich model keecat.60 size kingcat with retracts - 7/27/2007 1:10:55 PM   
MMallory


 

Posts: 1111
Joined: 12/11/2001
From: South Plainfield, NJ, USA
Status: offline 		Hmmm, the only other options are to find an engine with reverse rotation or install longer gear. I wonder if you called one of the prop companies if they could make a couple batches of pushers for these models.

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       Post #: 127

RE: rich model keecat.60 size kingcat with retracts - 7/29/2007 6:17:59 AM   
Pubhi


 

Posts: 135
Joined: 11/10/2002
From: san diego, CA, USA
Status: offline
quote:

ORIGINAL: MMallory

Hmmm, the only other options are to find an engine with reverse rotation or install longer gear. I wonder if you called one of the prop companies if they could make a couple batches of pushers for these models.



That is a negative on the longer gear if you plan on using the stock retracts. For one, it is not possible to change out the main gear struts. If you do manage to change out the struts, you will have to deal with modifying the wing and it will just be a headache in general.

I honestly think the best engine/prop combo for this plane is the tower 75 with an APC 11X7 prop. If you are going to use a 91 sized engine, it is probably best to use a ducted fan setup. I don't know if there are any 3 blade props out there that can be used with a 91 sized engine that can match the efficiency and speed of the 11X7 APC 2-blade prop.

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       Post #: 128

RE: rich model keecat.60 size kingcat with retracts - 7/29/2007 8:46:28 AM   
MARVINROBOT


 

Posts: 18
Joined: 10/31/2003
From: CARTERTONENGLAND, UNITED KINGDOM
Status: offline 		Did I hear a ducted fan, mine is converted to GDF and I am really really pleased with it. I hope the pictures does this model justice. OS91 VRDF with a Ramtec Fan and I get near vertical performance.

Regards

Marv.

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< Message edited by MARVINROBOT -- 7/29/2007 8:47:47 AM >

(in reply to Pubhi)
       Post #: 129

RE: rich model keecat.60 size kingcat with retracts - 7/29/2007 11:29:13 PM   
ruddleto


 

Posts: 8
Joined: 7/26/2007
From: WELLINGTONna, NEW ZEALAND
Status: offline 		Iam putting together a Keecat and am a bit puzzled with the fuel tank position ,does the engine need a pump to operate properly ?
I plan on using an OS 75.
Any advice welcome

Tony R

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       Post #: 130

RE: rich model keecat.60 size kingcat with retracts - 8/1/2007 6:46:04 PM   
i live for 3D



Posts: 529
Joined: 5/8/2005
From: miami, FL, USA
Status: offline 		i jus found out that zinger makes a 12x8 pusher prop....but you need to order 6 of them at $5.00 each...do you guys know of any e-stores that stock zinger propls other than tower?

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RE: rich model keecat.60 size kingcat with retracts - 8/4/2007 3:46:10 PM   
Pubhi


 

Posts: 135
Joined: 11/10/2002
From: san diego, CA, USA
Status: offline 		You would be better off using an APC prop...they are a lot better for speed.



quote:

ORIGINAL: i live for 3D

i jus found out that zinger makes a 12x8 pusher prop....but you need to order 6 of them at $5.00 each...do you guys know of any e-stores that stock zinger propls other than tower?


(in reply to i live for 3D)
       Post #: 132

RE: rich model keecat.60 size kingcat with retracts - 8/4/2007 5:42:59 PM   
i live for 3D



Posts: 529
Joined: 5/8/2005
From: miami, FL, USA
Status: offline 		yea but the biggest APC make is an 11x7

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RE: rich model keecat.60 size kingcat with retracts - 8/9/2007 5:57:48 AM   
Pubhi


 

Posts: 135
Joined: 11/10/2002
From: san diego, CA, USA
Status: offline 		That will probably be faster than any 12" wood prop but give it a try...I might be wrong...props are cheap anyway.

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RE: rich model keecat.60 size kingcat with retracts - 8/19/2007 2:15:12 PM   
gooseF22


 

Posts: 637
Joined: 8/12/2006
From: Fort Wayne, IN, USA
Status: offline 		OK so you .91 folks out there, chime in let us know what prop works. I have a super Tigre.91 on mine. Let us know where you got them or if you cut em down or what. 2 or 3 blade also,

Saw the video, it moves right along!.

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RE: rich model keecat.60 size kingcat with retracts - 8/20/2007 8:33:17 PM   
gooseF22


 

Posts: 637
Joined: 8/12/2006
From: Fort Wayne, IN, USA
Status: offline 		anyone out there?

ORdered a graupner 12x8 3 blade and a aPC 11x7 2 blade to try on the ST.91. Any other ideas??

Fuel tank position -- put the mouth forward.

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RE: rich model keecat.60 size kingcat with retracts - 8/23/2007 4:50:48 AM   
Pubhi


 

Posts: 135
Joined: 11/10/2002
From: san diego, CA, USA
Status: offline 		I can only vouch for the 11X7 on a .75 and it will perform. I am interested in hearing how the graupner will do...let us know.


quote:

ORIGINAL: gooseF22

anyone out there?

ORdered a graupner 12x8 3 blade and a aPC 11x7 2 blade to try on the ST.91. Any other ideas??

Fuel tank position -- put the mouth forward.


(in reply to gooseF22)
       Post #: 137

RE: rich model keecat.60 size kingcat with retracts - 9/6/2007 5:46:28 PM   
gooseF22


 

Posts: 637
Joined: 8/12/2006
From: Fort Wayne, IN, USA
Status: offline 		Im still not home yet for 2 more weeks
John ran the engine with a 11x8 on it, and he said the thrust was amazing, we will tach it soon with the ST.90 ringed with the bison muffler. Its an older motor from the old factory and its a screamer, well broken in already.

I maiden it on the 24th, the day after I get back. I think the 3blade 12x8 is too much by the sound of it. we may try cutting it down to 11x8x3. The perfect size would be 12x8 pusher.....APC the MODELING COMMUNITY WANTS A 11x8 and 12X8 pusher speed prop PLEASE
*

< Message edited by gooseF22 -- 9/6/2007 5:49:52 PM >

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RE: rich model keecat.60 size kingcat with retracts - 9/8/2007 5:42:02 PM   
i live for 3D



Posts: 529
Joined: 5/8/2005
From: miami, FL, USA
Status: offline 		let us know how the maiden goes.

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RE: rich model keecat.60 size kingcat with retracts - 9/27/2007 8:36:21 PM   
guj487e


 

Posts: 13
Joined: 10/3/2004
From: Warwickshire, UNITED KINGDOM
Status: offline 		thanks for all the hints people.I am alittle worried about prop clearance , i have a st 75 with an apc 11x7 and have a worrying 1/2 inch clearance with 3/8inch down trust .this looks as though climb out is going to be very shallow any thoughts ? what clearance have you lot got ? am i going to have to lift the engine? my first balance nose weight has come out at 12ounces or 350 gramms at 9.5 incches from t/edge but maiden has to wait until funds are available for abig battery!!

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