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RE: Nitro models pusher Bobcat? - 11/30/2009 11:22 PM   
bri_877


 

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From: gloversville, NY, USA
Status: offline 		Sounds about right Viper.....

Btw Fastback... hate to do it to you but pics are mandatory....[>:] Tore out retracts or fixed gear? Every time I've tried a short turn to final on a ds it's gone less than perfect. Some worse than others but with this plane especially, I'd say you did right to keep it level and slide it in... imho. Well, what are you doing here? Go fix it.

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RE: Nitro models pusher Bobcat? - 12/1/2009 5:08 AM   
1320Fastback



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From: Northern Occupied Mexico, CA, USA
Status: offline 		Alright heres some pics, I am stopping by the LHS after work tomorrow to get some balsa, it does not have retracts and in fact I plan on removing the wheel tubs as they are all broken up an just making the bottom smooth and recovering it.

My spotter said he though it was rich as he saw smoke coming out of the exhaust but I don't remember. The motor is on the back burner till the plane is fixed.

Its really not that much damage and of that I am glad. The front doenst look bad undereath so I didnt take a pic of it.


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< Message edited by 1320Fastback -- 12/1/2009 6:24 AM >

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RE: Nitro models pusher Bobcat? - 12/6/2009 8:44 PM   
1320Fastback



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From: Northern Occupied Mexico, CA, USA
Status: offline 		Here's the parts and the pre-fitting. I plan to use some landing struts from a 3D plane instead of the stock wire, that is what the blocks are for.

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RE: Nitro models pusher Bobcat? - 12/30/2009 8:10 PM   
gooseF22


 

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quote:

ORIGINAL: tbrewsterrc

Has anyone used a Super Tigre 90 on the Bobcat 51. I am preparing to get mine built and have some concern about the engine being too large. The G90 really doesnt weigh much more than the OS Fx .61. Opinions,???? Thanks, Tom


I used the st90 on the kee cat, a larger plane. it will work with a graupner 11x8, but run it rich a bit as it will be revving 14500 rpm but it motored pretty good. you should get 110mph on the bobycat

Dub jett sells a pusher pipe/ ultrathrust muffler.. gave it 1000rpm

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RE: Nitro models pusher Bobcat? - 12/30/2009 11:20 PM   
azrcaddict


 

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From: Paulden, AZ, USA
Status: offline 		Hey all... First of all thanks to everyone's help. My first and subsequent flights have been great. I am running an OS .61 on my Bobcat. I might try the .90 I have sitting around, and see how it does.

I have purchsed Eagle tree's "how fast" system. I tried it out on another planes and it worked very well. Soon as the weather gets a bit warmer around here I will let you know how fast the Bobcat flies with prop changes. Any suggestions on props let me know and I will try them and let you know. FYI mine does not have retracts.

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RE: Nitro models pusher Bobcat? - 1/4/2010 7:27 PM   
bigdanusa


 

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From: Findlay, OH, USA
Status: offline 		I can't find the screws in my hardware package that fit the blind nuts in the stabilizer. And I'm also missing the blind nuts for the engine mounts. Other than that I'm good to go.

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RE: Nitro models pusher Bobcat? - 2/8/2010 12:47 AM   
H.Dale


 

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From: Jackson, MS, USA
Status: offline 		Here's another variation designed for a 44 size turbine.

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RE: Nitro models pusher Bobcat? - 2/14/2010 4:47 AM   
Gregor32



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From: Melbourne, AUSTRALIA
Status: offline 		Hi guys, i have finnished and flown my bobcat now and i am very impressed with the flight envelope, i am running an asp52 with a weston pusher pipe turning an apc 10x7 i havnt tached it yet but it howl's and also spring air retracts. landing was the one thing i was worried about after reading all the stories of bouncing etc but i found the landing to be a breeze with a nose high attitude ( it realy looks cool) the only issue i have is take off, it gets plenty of speed and really leaps off the ground at 45+deg and it is quite scary even pushing down elevator dosent help during the initial lift off, after a few seconds elevator response becomes good and you can level off ok, what have people done to minimise this tendency? i do have a positive angle of attack when sitting on the ground. i have used about 1/4" reflex on ailerons for landing should i try this for take off.
Thanks Greg

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RE: Nitro models pusher Bobcat? - 4/4/2010 6:52 AM   
corsair-wb



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From: Edmonton Alberta, AB, CANADA
Status: offline 		Hello all, I know that somewhere in the 156 pages of this area there is a post wher someone said to balance the plane but unless I have to I would like to avoid reading all the pages again and have someone tell me where to balance the plane please.

Brad

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RE: Nitro models pusher Bobcat? - 4/4/2010 7:33 AM   
azrcaddict


 

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From: Paulden, AZ, USA
Status: offline 		Heyhas anyone used EDF for these yet?? If so how does it fly

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RE: Nitro models pusher Bobcat? - 4/4/2010 10:27 AM   
1320Fastback



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From: Northern Occupied Mexico, CA, USA
Status: offline 		CG is 10.3" from the leading edge where it meet the fuselage

No one has done a EDF to my recollection.

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RE: Nitro models pusher Bobcat? - 4/4/2010 1:38 PM   
BaldEagel



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Status: offline 		EDF has been done, with a great deal of modification by taking off the tail booms etc, have a look through the early part of the thread.

Mike

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RE: Nitro models pusher Bobcat? - 4/4/2010 5:17 PM   
corsair-wb



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Status: offline 		Thankyou 1320 Fastback you saved me a lot of time

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RE: Nitro models pusher Bobcat? - 4/5/2010 1:02 AM   
1320Fastback



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Status: offline 		No problem, I believe the range is actually about from 10 to 10.5" but the suggested sweet spot is 10.3

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RE: Nitro models pusher Bobcat? - 4/20/2010 7:51 AM   
Mitchell-RCU



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Status: offline 		Has anyone tried a Ram 500X on one? Will weight be a problem?

Mitchell

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RE: Nitro models pusher Bobcat? - 4/20/2010 10:34 AM   
BaldEagel



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Status: offline 		Couple of guys on here with JetCat P80's, can't think the Ram is any heavier????

Mike

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RE: Nitro models pusher Bobcat? - 4/21/2010 4:56 AM   
Mitchell-RCU



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Status: offline 		The Ram 500 is much smaller than the P-80. I don't know about weight, but i have both i'll have to remove the P-80 and then i'll weigh them.

Mitchell

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RE: Nitro models pusher Bobcat? - 4/23/2010 10:17 PM   
HeliTB



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From: Fort Washington, MD, USA
Status: offline 		I have the Robart Retracts that will fit BobCat 52 as I have and bought two sets fro some reason and I don't see a need to keep both. If anyone is interested in a Brand new set of retracts let me know. I paid $144 plus shipping. Willing to let go for $125 shipped.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJZE2&P=7


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RE: Nitro models pusher Bobcat? - 5/11/2010 6:23 PM   
morganew


 

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From: Brooklyn, NY, USA
Status: offline 		Could only get one of the non-retract ready versions. Anyone have any idea how much work to self mod it to accept retracts? Is it worth it?

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RE: Nitro models pusher Bobcat? - 5/11/2010 8:20 PM   
BaldEagel



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From: Wychling, Kent, UNITED KINGDOM
Status: offline 		Did not know they even made a non retract? got any pics?

Mike

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RE: Nitro models pusher Bobcat? - 5/11/2010 8:58 PM   
morganew


 

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From: Brooklyn, NY, USA
Status: offline 		[image]file:///J:/DCIM/100NCD90/DSC_0218.JPG[/image][image]file:///J:/DCIM/100NCD90/DSC_0219.JPG[/image][image]file:///J:/DCIM/100NCD90/DSC_0220.JPG[/image]
[image]file:///J:/DCIM/100NCD90/DSC_0221.JPG[/image]

Image one shows the wing. I haven't cut out the covering to expose the servo mounts, but the area where the retract would go is only a thin opening for the piano wire.
The other images show the interior of the nose that would normally be cut out to accommodate the retract. As you can see there are no blocks on which to mount the cylinders. I also show the underside of the nose. Again, no cutouts.

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RE: Nitro models pusher Bobcat? - 5/11/2010 9:03 PM   
morganew


 

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From: Brooklyn, NY, USA
Status: offline 		Sorry..with images this time

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RE: Nitro models pusher Bobcat? - 5/11/2010 9:10 PM   
BaldEagel



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Status: offline 		The internal structure looks completly different from the retract version, what wing span is this one?

Mike

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RE: Nitro models pusher Bobcat? - 5/11/2010 9:16 PM   
morganew


 

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Status: offline 		Wingspan is 51 inches. The below image shows the entire model (stock photo from general hobby), but the same color scheme that I have NIB.

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RE: Nitro models pusher Bobcat? - 5/11/2010 11:02 PM   
BaldEagel



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From: Wychling, Kent, UNITED KINGDOM
Status: offline 		Ahhh this is not the one that has been converted to turbine and constitues most of this thread, the one most are converting are the same as the Falcon 120 and is much bigger, perhaps an enquiry in the "Extream Speed" thread may bring some results.

Mike

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