BVM F-4 Nose Gear Air Strut    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version


Fly Eagle Jet F-16 Project, 1/5.5 Scale, includes turbine - ARF
Seller:  Screamin Eagle
Details:   $6,300.00   |  6/13/2013   |  Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> RC Airplanes >> RC Jets >> BVM F-4 Nose Gear Air Strut
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
BVM F-4 Nose Gear Air Strut - 3/18/2011 9:56 PM   
WHMC


 

Posts: 319
Score: 100
Joined: 1/13/2002
Last Login: 6/19/2013
From: St. Charles, MO, USA
Status: offline 		Anyone know how to install the drag link/cyl assy.? Does the mounting bar need to rotate or be stationary? The link assy seems to interfear with the nose door cyl/mount? Clueless in STL. Any info appreciated. Thanks whmc

Hide Signatures
       Post #: 1

RE: BVM F-4 Nose Gear Air Strut - 3/18/2011 10:20 PM   
DavidR



Posts: 3225
Score: 110
Joined: 12/8/2001
Last Login: 6/19/2013
From: Oxford, MS, USA
Status: offline 		Wayno

Nothing rotates on the F-4 nose gear. There should be a little piece of flat aluminum stock that mounts to the side of the retract unit. There is a collar on the nose gear leg that the fake cylinder bolts to then you bolt the other end to the flat stock.....or just leave the da mn thing off! It does look cool but the nose gear is a very tight fit in the gear well. If you have the inflating strut you have to make sure the strut is extended and stays extended or you will have problems. You'll love the plane, it flies great and is still the premium F-FO out there, thinking I might knock the dust off mine, jam an engine back in it and fly it this summer.

DR

Hide Signatures

(in reply to WHMC)
       Post #: 2

RE: BVM F-4 Nose Gear Air Strut - 3/18/2011 11:18 PM   
WhoDaMan


 

Posts: 4212
Score: 850
Joined: 12/8/2001
Last Login: 6/18/2013
From: Davis, CA, USA
Status: offline 		Hi Dave good to see you back on here, can you explain how to set it up to raise the nose on the radio, any secrets

Dave
quote:

ORIGINAL: DavidR

Wayno

Nothing rotates on the F-4 nose gear. There should be a little piece of flat aluminum stock that mounts to the side of the retract unit. There is a collar on the nose gear leg that the fake cylinder bolts to then you bolt the other end to the flat stock.....or just leave the da mn thing off! It does look cool but the nose gear is a very tight fit in the gear well. If you have the inflating strut you have to make sure the strut is extended and stays extended or you will have problems. You'll love the plane, it flies great and is still the premium F-FO out there, thinking I might knock the dust off mine, jam an engine back in it and fly it this summer.

DR



_____________________________

Doesn''t "expecting the unexpected"
Make the unexpected expected?

Hide Signatures

(in reply to DavidR)
       Post #: 3

RE: BVM F-4 Nose Gear Air Strut - 3/18/2011 11:34 PM   
f106jax



Posts: 739
Score: 110
Joined: 1/31/2002
Last Login: 6/19/2013
From: Lebanon, PA, USA
Status: offline
quote:

ORIGINAL: WhoDaMan

Hi Dave good to see you back on here, can you explain how to set it up to raise the nose on the radio, any secrets

Dave
quote:

ORIGINAL: DavidR

Wayno

Nothing rotates on the F-4 nose gear. There should be a little piece of flat aluminum stock that mounts to the side of the retract unit. There is a collar on the nose gear leg that the fake cylinder bolts to then you bolt the other end to the flat stock.....or just leave the da mn thing off! It does look cool but the nose gear is a very tight fit in the gear well. If you have the inflating strut you have to make sure the strut is extended and stays extended or you will have problems. You'll love the plane, it flies great and is still the premium F-FO out there, thinking I might knock the dust off mine, jam an engine back in it and fly it this summer.

DR




Dave,

I previously had an extendable nose strut on my BVM F-4 and currently have one on my Skymaster F-4. For both applications, I mix the strut air valve with the throttle. The nose strut extends when the throttle is at 60%. This permits taxiing with the strut collapsed. Looks cool when you're at the end of the runway, take off flaps down, brakes locked, and begin throttle up for takeoff, the strut extends, release the brakes and off you go.


_____________________________

Mike

Hide Signatures

(in reply to WhoDaMan)
       Post #: 4

RE: BVM F-4 Nose Gear Air Strut - 3/18/2011 11:50 PM   
WhoDaMan


 

Posts: 4212
Score: 850
Joined: 12/8/2001
Last Login: 6/18/2013
From: Davis, CA, USA
Status: offline 		Hi Mike:
  Sweet setup Thank you for that
I have the matrix for my Jet Legend F-4 that I just got done, I will setup like yours

Dave
quote:

ORIGINAL: f106jax


quote:

ORIGINAL: WhoDaMan

Hi Dave good to see you back on here, can you explain how to set it up to raise the nose on the radio, any secrets

Dave
quote:

ORIGINAL: DavidR

Wayno

Nothing rotates on the F-4 nose gear. There should be a little piece of flat aluminum stock that mounts to the side of the retract unit. There is a collar on the nose gear leg that the fake cylinder bolts to then you bolt the other end to the flat stock.....or just leave the da mn thing off! It does look cool but the nose gear is a very tight fit in the gear well. If you have the inflating strut you have to make sure the strut is extended and stays extended or you will have problems. You'll love the plane, it flies great and is still the premium F-FO out there, thinking I might knock the dust off mine, jam an engine back in it and fly it this summer.

DR




Dave,

I previously had an extendable nose strut on my BVM F-4 and currently have one on my Skymaster F-4. For both applications, I mix the strut air valve with the throttle. The nose strut extends when the throttle is at 60%. This permits taxiing with the strut collapsed. Looks cool when you're at the end of the runway, take off flaps down, brakes locked, and begin throttle up for takeoff, the strut extends, release the brakes and off you go.




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


_____________________________

Doesn''t "expecting the unexpected"
Make the unexpected expected?

Hide Signatures

(in reply to f106jax)
       Post #: 5

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 12:36 AM   
Kelly Rohrbach


 

Posts: 485
Score: 100
Joined: 2/24/2002
Last Login: 6/18/2013
From: KALISPELL, MT, USA
Status: offline 		Whmc
Send me a PM with your E-mail and I can send you a picture of how it goes, I have three of them going into the BVM F4

_____________________________

Kelly Rohrbach
BVM REP

Hide Signatures

(in reply to WhoDaMan)
       Post #: 6

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 3:01 AM   
christrump



Posts: 408
Score: 100
Joined: 6/18/2004
Last Login: 6/19/2013
From: Montreal, QC, CANADA
Status: offline 		Are these struts still available somewhere for the BVM F-4? I would love to fit one to mine.

Chris

Hide Signatures

(in reply to Kelly Rohrbach)
       Post #: 7

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 3:17 AM   
f106jax



Posts: 739
Score: 110
Joined: 1/31/2002
Last Login: 6/19/2013
From: Lebanon, PA, USA
Status: offline
quote:

ORIGINAL: christrump

Are these struts still available somewhere for the BVM F-4? I would love to fit one to mine.

Chris



Chris,

Yes, John at Matrix Machine still makes them. Super quality! Here's the link to the F-4 struts. http://home.earthlink.net/~matrixmt/id14.html

This is a pic of my F-4 strut compressed. Will look for one that shows it extended. Picture credit - Mitchell Photography.

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Mike

Hide Signatures

(in reply to christrump)
       Post #: 8

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 3:40 AM   
christrump



Posts: 408
Score: 100
Joined: 6/18/2004
Last Login: 6/19/2013
From: Montreal, QC, CANADA
Status: offline 		Thanks Mike!

Hide Signatures

(in reply to f106jax)
       Post #: 9

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 4:09 AM   
Kelly Rohrbach


 

Posts: 485
Score: 100
Joined: 2/24/2002
Last Login: 6/18/2013
From: KALISPELL, MT, USA
Status: offline 		The strut make the F4 look sooooooo cool setting on the ground with out the take off AOA.

_____________________________

Kelly Rohrbach
BVM REP

Hide Signatures

(in reply to christrump)
       Post #: 10

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 4:18 AM   
Kelly Rohrbach


 

Posts: 485
Score: 100
Joined: 2/24/2002
Last Login: 6/18/2013
From: KALISPELL, MT, USA
Status: offline 		What I plan to do is put in a cross brace that may have a small flat surface at a shallow angle(like a ramp) so when the nose gear retracts the wheels have to be on the aft side of the cross brace to go into the well. That will make sure the strut is fully extended and will keep it extended during flight. Also if the strut is not extended after takeoff the wheels will hit the cross brace and not allow the strut scissors to damage the fuse or get stuck in the fuse when trying to drop the gear for landing. This will also be handy when working in the pit and you retract the gear but forget to extend the strut first.
Kelly

_____________________________

Kelly Rohrbach
BVM REP

Hide Signatures

(in reply to Kelly Rohrbach)
       Post #: 11

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 8:55 AM   
DavidR



Posts: 3225
Score: 110
Joined: 12/8/2001
Last Login: 6/19/2013
From: Oxford, MS, USA
Status: offline
quote:

ORIGINAL: Kelly Rohrbach

What I plan to do is put in a cross brace that may have a small flat surface at a shallow angle(like a ramp) so when the nose gear retracts the wheels have to be on the aft side of the cross brace to go into the well. That will make sure the strut is fully extended and will keep it extended during flight. Also if the strut is not extended after takeoff the wheels will hit the cross brace and not allow the strut scissors to damage the fuse or get stuck in the fuse when trying to drop the gear for landing. This will also be handy when working in the pit and you retract the gear but forget to extend the strut first.
Kelly
Kelly I have hundreds of flights on mine and never had a problem with it retracting in flight. I did a similar mix to what mike did so that taxiing the nose stayed down but when you throttled up the nose raised up. It is very important that you don't try to take off with it down, at least on the BVM F4 the low AOA will make for an interesting high speed taxi run that will never rotate......you can guess how I know this.....now y'all definitely have me wanting to knock the dust off mine.

Mike you remember hot laps at Superman with the F4's, it think that was the year mine flamed out on my gear pass! That's one airplane you always need an exit strategy with for sure. It definitely made me a better pilot.

DR

Hide Signatures

(in reply to Kelly Rohrbach)
       Post #: 12

RE: BVM F-4 Nose Gear Air Strut - 3/19/2011 1:54 PM   
f106jax



Posts: 739
Score: 110
Joined: 1/31/2002
Last Login: 6/19/2013
From: Lebanon, PA, USA
Status: offline
quote:

ORIGINAL: DavidR


quote:

ORIGINAL: Kelly Rohrbach

What I plan to do is put in a cross brace that may have a small flat surface at a shallow angle(like a ramp) so when the nose gear retracts the wheels have to be on the aft side of the cross brace to go into the well. That will make sure the strut is fully extended and will keep it extended during flight. Also if the strut is not extended after takeoff the wheels will hit the cross brace and not allow the strut scissors to damage the fuse or get stuck in the fuse when trying to drop the gear for landing. This will also be handy when working in the pit and you retract the gear but forget to extend the strut first.
Kelly
Kelly I have hundreds of flights on mine and never had a problem with it retracting in flight. I did a similar mix to what mike did so that taxiing the nose stayed down but when you throttled up the nose raised up. It is very important that you don't try to take off with it down, at least on the BVM F4 the low AOA will make for an interesting high speed taxi run that will never rotate......you can guess how I know this.....now y'all definitely have me wanting to knock the dust off mine.

Mike you remember hot laps at Superman with the F4's, it think that was the year mine flamed out on my gear pass! That's one airplane you always need an exit strategy with for sure. It definitely made me a better pilot.

DR


Hey David,

I think that we had 4 or 5 of the Rhinos up together! Made for a great show. Flying the BVM Phantom always saved me money.....never had to go to the cardiologist. The first 10 flights were a stress test.

_____________________________

Mike

Hide Signatures

(in reply to DavidR)
       Post #: 13

RE: BVM F-4 Nose Gear Air Strut - 5/29/2011 1:58 AM   
christrump



Posts: 408
Score: 100
Joined: 6/18/2004
Last Login: 6/19/2013
From: Montreal, QC, CANADA
Status: offline 		Guys, I've mixed the strut with throttle for take off. Do you leave the strut extended for landing or do you let the air out when the gear is down? I could mix it to sink back down when I pull the chute. What do you think?

Thanks,
Chris

Hide Signatures

(in reply to f106jax)
       Post #: 14

RE: BVM F-4 Nose Gear Air Strut - 5/29/2011 2:09 AM   
David Gladwin



Posts: 2861
Score: 110
Joined: 2/5/2002
Last Login: 6/19/2013
From: CookhamBerkshire, UNITED KINGDOM
Status: online 		My experience, for what its worth !

I use a separate channel to control the strut which has its own air supply. I set the pressure to be just slightly more than required to inflate the strut when the model is full of fuel. I extend it as soon as I start taxiiing. That way, there is some shock absorbing by the strut which, if collapsed has NO flexibility as the gear is bolted rigidly to the two wood and C/F bearers. I land with the strut extended then collapse it at the end of the taxi, again, shock absorbing during taxi. .An O ring placed around the strut will give a very little, but better than no, shock absorbing when the leg is collapsed. Must get mine airborne again soon after its refurb. Know the feeling about the cardioligist !

Endorse the quality comments and my thanks to John at Matrix for the new O rings sealing the leg.

Mine is modelled on the J F4 and has a slotted scale stab. Looks great but makes NO difference to the handling.

Regards,

David Gladwin.

Heres the strut in action, gear just starting to travel.

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to christrump)
       Post #: 15

RE: BVM F-4 Nose Gear Air Strut - 5/29/2011 2:57 AM   
christrump



Posts: 408
Score: 100
Joined: 6/18/2004
Last Login: 6/19/2013
From: Montreal, QC, CANADA
Status: offline 		David, I was going to tap into the brakes for air but, had considered a dedicated air supply and for the reasons you mentioned I may do just that. As for when to extend..... http://www.youtube.com/watch?v=bvmLxjgNLL8&feature=related

Mine's a C, no slotted stab.....Killing lots of time on the cockpit though which dosn't make it fly better either!

Thanks,
Chris

Hide Signatures

(in reply to David Gladwin)
       Post #: 16

RE: BVM F-4 Nose Gear Air Strut - 5/29/2011 3:23 AM   
THEREALMATRIX



Posts: 58
Score: 100
Joined: 9/23/2005
Last Login: 6/18/2013
From: Rochester, NY, USA
Status: offline
quote:

ORIGINAL: WHMC

Anyone know how to install the drag link/cyl assy.? Does the mounting bar need to rotate or be stationary? The link assy seems to interfear with the nose door cyl/mount? Clueless in STL. Any info appreciated. Thanks whmc


It should assemble as shown in this photo.


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


_____________________________

Matrix Machine Tool
Innovation by Design & Excellence in Performance.

Hide Signatures

(in reply to WHMC)
       Post #: 17

RE: BVM F-4 Nose Gear Air Strut - 5/31/2011 7:22 PM   
WhoDaMan


 

Posts: 4212
Score: 850
Joined: 12/8/2001
Last Login: 6/18/2013
From: Davis, CA, USA
Status: offline 		Hi Guy's
Matrix finished my gear,
I want to thank you all for helping me learn how to set them up

Dave

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


_____________________________

Doesn''t "expecting the unexpected"
Make the unexpected expected?

Hide Signatures

(in reply to THEREALMATRIX)
       Post #: 18

Page:   [1]
All Forums >> RC Airplanes >> RC Jets >> BVM F-4 Nose Gear Air Strut
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.829RCU1