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Old Jul 20, 2012, 09:02 AM
ancora imparo
jj604's Avatar
Melbourne, Australia
Joined Jul 2005
6,865 Posts
Gordon I assume you mean this one?

My DR1 flys fine at full throttle but at the small indoor hall we have it is positively embarrassing on low throttle. I have heard Russian tractors that make less mechanical racket.

Does the pinion supplied with Bob's gearbox fit the existing Triplane motor? If so I'm ordering one!

Or should I get Bob's complete set up with motor here?

http://www.bsdmicrorc.com/index.php?productID=968

Thanks, John
Quote:
Originally Posted by Gordon Johnson View Post

.....

I retrofit a BSD ball bearing 7mm gearbox with a long-can 7mm motor in my Dr.1. It's quiet and develops 18% more thrust for almost exactly the same weight.

...

Gordon
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Old Jul 20, 2012, 02:55 PM
in persuit of low wing loading
Gordon Johnson's Avatar
Boston, Mass
Joined May 2001
6,436 Posts
I did a thread on the conversion
http://www.rcgroups.com/forums/showthread.php?t=1557088

I was working with Bob on this solution before the Dr.1 was available and shipping. The horizontal mount screws onto a standard BSD gearbox, then cut away foam in the Dr.1. There may be other ways to mount and shoehorn this gearbox into a Flyzone plane. But, this way works.

The complete gearbox setup from Bob is probably the way to go since it's got the Horizontal piece, the long-can motor, and everything needed including the longer prop shaft to get it out through the cowl.

Everyone who sees my Dr.1 fly comments on how quiet it is.

The pinion on BSD's gearbox will fit the Flyzone 7mm motor. The problem is the Flyzone motor is a really hot wind motor. That's why it has a 5.5:1 gear ratio and a smaller than 5x3 prop (which are appropriate for that wind). You don't want to run the Flyzone motor in a lower gear 4:1 gearbox and a larger prop. It would kill that motor.

The long can motor is not quite as hot a wind as the Flyzone motor, and its larger size means it can swing a slightly larger prop when used with the lower 4:1 gearing in the BSD gearbox. I calculated motor constants for the long-can motor the Flyzone motor and compared static tests etc before the Dr.1 was shipping to figure this all out. Since all the Flyzone micro planes so far have used the same motor/gearbox/prop I new the lay of the land before the Dr.1 was available and had this solution ready.

Gordon
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Last edited by Gordon Johnson; Jul 20, 2012 at 04:08 PM.
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Old Jul 20, 2012, 03:55 PM
Registered User
Gulf Breeze, FL
Joined Jul 2006
3,100 Posts
Quote:
Originally Posted by RayRangel View Post
Based on experience with Dr1 and Albatros:

Minus:

Fuse is glued together, no repair access

.....
"Based on experience", invest in some Naphtha (Lighter Fluid) if you think you'll need to work inside the fuselage. Run a bead along the seam with a QTip as you gently pry the fuselage apart starting at an end. Very, very easy...but the cowling may be a challenge.

Gene K
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Old Jul 20, 2012, 05:37 PM
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United States, GA, Centerville
Joined Mar 2012
170 Posts
Thanks Speedy, I'll do that. Do you recommend I glue it back together or tape ala Champ?
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Old Jul 20, 2012, 05:49 PM
ancora imparo
jj604's Avatar
Melbourne, Australia
Joined Jul 2005
6,865 Posts
Thanks, Gordon. That's very useful. Looks like Bob is about to get an order.

John

Quote:
Originally Posted by Gordon Johnson View Post
I did a thread on the conversion
http://www.rcgroups.com/forums/showthread.php?t=1557088

.....
Gordon
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Old Jul 26, 2012, 12:02 AM
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Joined Oct 2005
1,553 Posts
I had gotten a DR1 about a month and a half ago, but have only flown her once. She flew great. I have the Nieuport on the top of my list. I've had a big year for micros lol. Got a Mosquito, Mustang, DR1, T28. Next up is the Nieuport lol.
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Old Aug 31, 2012, 03:12 PM
-=BS=-
BlazingStar's Avatar
Thousand Oaks, CA
Joined Jul 2009
1,212 Posts
It's time to resurrect this thread.
I have mine on order and expecting it next week.
Looks awesome!!
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Old Aug 31, 2012, 03:56 PM
Just some guy
D Johnson's Avatar
Joined Aug 2006
662 Posts
They are now in stock.

DJ
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Old Aug 31, 2012, 05:41 PM
Wanton construction
Pouncer's Avatar
Stockholm Sweden
Joined Sep 2006
964 Posts
Quote:
Originally Posted by D Johnson View Post
They are now in stock.

DJ
Cool, I've ordered it in spare parts, minus details such as dummy pilot/m'gun and pushrods, came out at $40 + shipping, very reasonble IMO.

Hope it flies as well as the Dr I and the Albatros!
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Old Aug 31, 2012, 11:58 PM
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Chillicothe, OH
Joined Mar 2008
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Parts on order from Tower. Have a AR6400 ready to drop into it
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Old Sep 01, 2012, 01:08 PM
Just some guy
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Joined Aug 2006
662 Posts
Pouncer you will not be disapointed. It does require a bunch of right thrust.
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Old Sep 02, 2012, 07:16 PM
Wanton construction
Pouncer's Avatar
Stockholm Sweden
Joined Sep 2006
964 Posts
Quote:
Originally Posted by D Johnson View Post
Pouncer you will not be disapointed. It does require a bunch of right thrust.
Thanks for the tip, on the Dr I and the Albatros I stuck to the side thrust as well I could make out from the mold, I trust I can do the same in the Nieuport?

It does look like a bigger plane than its predecessors, partly because the pilot figurine is a bit small, but the wheels look on the small side as well?

Not a complaint, just a remark; the Dr I has a number of departures from scale but they all contribute to its beautiful flight characteristics.

Looking forward to this!
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Old Sep 02, 2012, 11:54 PM
Lori, hey, you're home early
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United States, NJ, Trenton
Joined Jan 2004
9,130 Posts
I hope to see a few of these up at the NEAT Fair as Fokker fodder during the Dawn Patrol each morning!

Dave-- Are you bringing one?

Mike
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Old Sep 04, 2012, 02:48 PM
Just some guy
D Johnson's Avatar
Joined Aug 2006
662 Posts
We should have some with us.

DJ
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Old Sep 04, 2012, 05:16 PM
-=BS=-
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Thousand Oaks, CA
Joined Jul 2009
1,212 Posts
Oh boy....
Dawn patrol here I come....
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