Lancair 360 MK2  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> ARF or RTF >> NitroModels Support >> Lancair 360 MK2
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Lancair 360 MK2 - 1/13/2007 10:34:14 PM   
dejavoodoo


 

Posts: 7
Joined: 1/5/2007
From: Carlsbad, NM, USA
Status: offline 		Hi
I'm interested in buying one of the Nitroplanes Lancair 360 MK2 planes, and I'm wondering if it would be possible to run an OS max FL70 4 stroke in it. By that I guess I'm asking how much prop clearance is there? That engine uses a 12" to 13" prop.
Thanks! AlanP
       Post #: 1

RE: Lancair 360 MK2 - 1/14/2007 12:41:10 AM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		I'm putting one together with an MDS68.

It appears to be about 8.5" ground clearance to the prop shaft so even a 13 inch prop should be ok.

Overall it looks pretty good for an inexpensive ARF.

Getting a wider engine entailed making clearance in the motor mount so it could go against the the upper nose gear block with clearance to get at the collar holding it in place. The engine is a tight fit and I'll probably have to cut up the cowl quite a bit.

I expect to have assembly done in a couple more days.

Eric

(in reply to dejavoodoo)
       Post #: 2

RE: Lancair 360 MK2 - 1/14/2007 1:42:59 AM   
dejavoodoo


 

Posts: 7
Joined: 1/5/2007
From: Carlsbad, NM, USA
Status: offline 		That sounds great, I'd love to see it. Would you post pics when you get it finished? That would be super...

(in reply to Overpowered)
       Post #: 3

RE: Lancair 360 MK2 - 1/16/2007 4:44:27 AM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		Some things I noticed in the construction.

Need to make clearance in the motor mount for the nose gear on an MDS 68 or any large engine
Dont forget the 2 washers under the left side holes of the motor mount to get the thrust (not built into firewall)
CMP measurement for face of prop to firewall too large - measure first - I have more than 1/4" gap - I'll leave it for now
With the large engine I needed tail weight so I cantelevered the 2100 NiMH 5 cell pack off the back of the servo tray in the middle of the Fuse with a Lowes paint stirrer - this will reduce need for dead weight in the plane - at 70mm will target 72 - 75 from leading edge by adding a little more weigt to the stirrer.
Trying TowerPro Digital (they call them digital) w/995 MG - better than expected for $13 ea.
Put the nose wheelpants on before putting the gear on the plane.
Zap a Dap a Goo works well for Front wheelpants components as well as rear windows (dont use old glue in a 40 degree garage)
Replace the wing screws with 1/4 - 20 nylon - ease of replacement
Elevate the rudder servo further and cris cross the rudder pull pull wires to get the right exit angles as well as the rudder matching the correct steering direction
Make rod standoffs for steering and throttle servos as appropriate - did not use one on the rigid (CF) elevator rod

First pics

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to dejavoodoo)
       Post #: 4

RE: Lancair 360 MK2 - 1/16/2007 4:47:12 AM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		More pics


Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to Overpowered)
       Post #: 5

RE: Lancair 360 MK2 - 1/16/2007 4:48:25 AM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		A few more

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to Overpowered)
       Post #: 6

RE: Lancair 360 MK2 - 1/18/2007 2:09:51 AM   
dejavoodoo


 

Posts: 7
Joined: 1/5/2007
From: Carlsbad, NM, USA
Status: offline 		Wow!
What a slick looking plane! Thanks for the pics and the construction advice. That cowl really hides the engine well, doesn't it? So you think it'll cool ok? I hope so, that's really clean....
I'm hoping to get one on the way before too long.

(in reply to Overpowered)
       Post #: 7

RE: Lancair 360 MK2 - 1/18/2007 2:15:50 AM   
dejavoodoo


 

Posts: 7
Joined: 1/5/2007
From: Carlsbad, NM, USA
Status: offline 		Eric,
please let me know how it flies, I've been reading posts on here about the CG being off (aft) as indicated on the plans, and the nose gear being a little weak. Everyone loves the way it flies though...
Man, what a clean plane..

(in reply to dejavoodoo)
       Post #: 8

RE: Lancair 360 MK2 - 1/18/2007 5:40:16 AM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		It's way too cold & busy - probably fly it in a few weeks.

Weighed it tonight at 7 Lbs 2.5 oz.

Eric

(in reply to dejavoodoo)
       Post #: 9

RE: Lancair 360 MK2 - 1/21/2007 10:18:39 AM   
virtualvictum


 

Posts: 56
Joined: 9/13/2003
From: Sumner, IL, USA
Status: offline 		Hey guys thought I would chime in on this little gem. I have the stars and stripes version. First off this is a sweet flying plane and very responsive. I run a GMS .61 in mine and it hauls a@@. Landings are a little hot so be prepared. The plane is so aerodynamically clean that it takes a long time to bleed off speed. Just make a longer landing approach than normal and you will be fine. The plane comes in extremely nose heavy when using the .61 size motor so a lot of weight had to be added to the rear. I will post pictures. He is right about the distance from the engine backplate to the firewall. It is way off. I also have 1/4" gap and it looks ugly but I am going to leave it because it would require rebalancing. I can save you both the trouble of rebending the front landing gear, just replace it now. Way too weak. I fly off grass and it is cut extremely short and the wheel pants had to go. That sucked because they look sweet. If you insist on using the stock front gear and the wheel pants the first time it bends it will crack the bottom of the fuse. Ask me how I know. Once you get her trimmed out it is an awesome sight in the air. Very fast and nimble. Rolls can be very fast if you choose and loops can be as well. If you want to know the measurements of the control surface movements that I have just let me know. I can try to answer any more questions that you think of. Good luck on the maidens. One more thing I almost forgot. On take off the plane actually sticks to the ground. You have to fly this one off. Be careful because at takeoff speeds it can get squirrley as she has a short wheelbase. I flipped a couple of times figuring this out. RCU won't let me upload pics. I will try later.

(in reply to Overpowered)
       Post #: 10

RE: Lancair 360 MK2 - 1/21/2007 6:32:55 PM   
Overpowered


 

Posts: 96
Joined: 7/30/2002
From: Frisco, TX, USA
Status: offline 		Hey virtual,

Please post actual throws and cg you are flying with. Pictures would be great also.

Based on your experience, i'll probably use the current nose gear for show and drop in a spare Fults (dual leg) nose setup for flying.

Cheers
Eric

Going to be making more room on the ceiling of my garage for more planes - picked up 2 more at a club swap meet so im up to 29 - see my planes thru my profile.

(in reply to virtualvictum)
       Post #: 11

RE: Lancair 360 MK2 - 1/21/2007 10:45:58 PM   
dejavoodoo


 

Posts: 7
Joined: 1/5/2007
From: Carlsbad, NM, USA
Status: offline 		Hey guys
Ths CG issue and the nosegear being weak were the two most prevalent concerns I've been able to find so far. When I get mine I'll take care of the nosegear before I do anything else. I would really like to install one of those nosewheel brake setups that Dubro makes (or used to make, I can't find 'em), it was sweet, worked great. Sure makes the runway 'longer'. I keep reading that retracts are not possible on this bird, but we'll see.....
Anyway,I'd love to see it.
Later! AlanP

(in reply to Overpowered)
       Post #: 12

RE: Lancair 360 MK2 - 1/22/2007 5:50:54 AM   
virtualvictum


 

Posts: 56
Joined: 9/13/2003
From: Sumner, IL, USA
Status: offline 		I will try to post pictures. The c.g. I am using is 72mm spot on on the great planes c.g. machine. The elevator has 8mm of movement both directions. The ailerons 10mm both directions. Max throw on the rudder. Believe me that is more than enough to control it. This provides very good roll rate and believe it or not tight loops if you want to.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize
Click to see fullsize image.
Click for fullsize

(in reply to dejavoodoo)
       Post #: 13