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Old Jul 07, 2009, 11:53 PM
Extreme CNC Alloy EDF
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That usually happens on these setups, I always test the fan for vibration by holding it in a (heavily) gloved hand, this is the most accurate way of feeling vibration and getting the spinner cap positioned just right.

Dont worry about the slight rub, just scrape any material off the fan housing with a new exacto knife, dont sand it you will mess up the housing, just lightly scrape till you have removed the bit of blade material. I have had to do this to pretty much every fan I have assembled and I have built A LOT of these 90mm flyfly upgrades!
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Old Jul 08, 2009, 08:38 AM
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Quote:
That usually happens on these setups
Good to hear.

Back to the build table. I have to review all these build notes.

- Dry fit everything when building battery bay
- Plumb motor wires though channel around fan housing
- Cut down exhaust down to 80mm
- Mount ESC in the breeze
- Use silicon mounting caulk to gap seal ailerons
- Use iron to make finger grips
- MG servo's to take some abuse
- Cut down aileron control horn so it won't snag on grass

Did I miss anything?

Tom
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Old Jul 15, 2009, 04:49 PM
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Quote:
Originally Posted by sparks
I'm not going to hijack, I just want to drop in and let you guys know I have a cockpit upgrade kit available for the Fly Fly Mirage now.
http://www.parkflyerplastics.com
I'll be running a build thread soon and may drop in again to post the link.
Thanks for running this thread, it was very useful in getting my model in the air.
Do u have U/C or do you take off and land with the wing tanks on? oh it looks cool
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Old Jul 15, 2009, 05:33 PM
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Quote:
Originally Posted by sparks
I'm not going to hijack, I just want to drop in and let you guys know I have a cockpit upgrade kit available for the Fly Fly Mirage now.
http://www.parkflyerplastics.com
I'll be running a build thread soon and may drop in again to post the link.
Thanks for running this thread, it was very useful in getting my model in the air.
After mentioning elsewhere I thought $25 was too much for a photo cockpit with no pilots it is refreshing to see that a cast cockpit with pilots and more is priced right.

Hey Sparks, I checked out your site. Cool stuff at very good prices.

I want the larger WW1 engine for my DR1, but too small I think. Is it 1/6 scale.

Thanks.

Brent
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Old Jul 15, 2009, 07:46 PM
RC 4 Life
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Fort Worth, TX USA
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No wheels or gear at all.
however, I do have to use a bungee to get it off the ground. Adding the glass cloth for the finish killed the ROG feature of the tanks.
The angle of attack is slightly nose high while sitting on the tanks so all I do is wait for the rubber to get the model up to speed and it lifts off on its own.
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Old Jul 15, 2009, 10:39 PM
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Sorry for off topic but again-

Sparks is parkflyerplastics larger WW1 Gnome engine 1/6th scale?
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Old Jul 16, 2009, 05:23 AM
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Sparks it looks cool with them wing tanks/cockpit/ inlets, dose it alter the performance at all? And how much weight would I gain ? Not going to glass cloth mine and how did you get the strength in the wing/tanks for landings.
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Old Jul 16, 2009, 09:12 AM
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The tank installation is on post 26 on the following thread.
http://www.rcgroups.com/forums/showthread.php?t=1065911

As for the gnome engine, 1/6 would be the scale if you rounded it up just a bit.
I hate to assign a scale value to any of the models because the experts tend to get a kick out of breaking out the calipers and showing off what they have researched. The sad truth is you can take any three view and compare it against another and the never match.
All a guy can do is his best.
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Old Jul 16, 2009, 10:32 AM
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Any idea how much the tanks effect performance? Did you have any flights before adding the tanks to compare it to?
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Last edited by techspy; Jul 16, 2009 at 10:45 AM.
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Old Jul 16, 2009, 11:26 AM
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Ok just got home and the mirage is in the box with no damage,, it dry fits well,, so what are the do"s and Donts any issues? and you cant get to the fan after it is installed anyone made a hatch?
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Old Jul 16, 2009, 11:31 AM
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Quote:
Originally Posted by j6myw
Ok just got home and the mirage is in the box with no damage,, it dry fits well,, so what are the do"s and Donts any issues? and you cant get to the fan after it is installed anyone made a hatch?
Yes some of us have. Post #823

http://www.rcgroups.com/forums/showp...&postcount=823
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Old Jul 16, 2009, 11:34 AM
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Quote:
Originally Posted by sparks
The tank installation is on post 26 on the following thread.
http://www.rcgroups.com/forums/showthread.php?t=1065911

As for the gnome engine, 1/6 would be the scale if you rounded it up just a bit.
I hate to assign a scale value to any of the models because the experts tend to get a kick out of breaking out the calipers and showing off what they have researched. The sad truth is you can take any three view and compare it against another and the never match.
All a guy can do is his best.
The DR1 is about 1/5.5 scale so if it was rounded down a bit to be 1/6 I would be good.
Guess I'll have to scratch build one.

Thanks Sparks
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Old Jul 16, 2009, 01:13 PM
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Tanks and performance.
There are a bunch of "ifs" to consider.
In my case I flew the model with the gear, and without the gear. Without the gear made it a different model.
Landing speed required less power and it did fly faster as you would expect.

Then I added the fiberglass weight and the tank weight it became harder to get in the air and landed faster, again as you would expect.
The difference between the gear system and the tanks is 4 ounces. However they offer less drag.
Trading weight for less drag is a personal choice.

Now the truth.
If I had a new naked Mirage it would get the tanks because I know it will takeoff from them.
As for this heavier one I have now, When the tanks see the end of their service life they will be taken off and belly landings will be tried before I replace them.

J6myw
Here is a don't. don't belly land the model without protecting the servo arms and linkage.
also, be sure to protect the wing latch. The grass will release the wing on landing.
I got lucky, when I went to lift the model the wing stayed on the ground.
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Old Jul 16, 2009, 01:52 PM
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Sparks me again, I wasn't paying attention to the tanks till now.

That could be just the ticket for me for take offs if it will.

I'm at about 2500g not glassed.

I started to have hand launch problems and haven't flown it since.
Thought about a bungee, but the tanks could be easier and I'm fine with any reduction due to drag.

I guess I must have missed something, do you sell the tanks? As I can't seem to find them on your site. Link me and I will buy them and take the WW1 engine and try to mod it.

Thanks Brent.

edit: Found the tank # on the other thread.
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Last edited by BrentP; Jul 16, 2009 at 02:04 PM.
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Old Jul 16, 2009, 02:12 PM
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Hmmm I read Sparks last post in the other thread about scary tanks takeoff so I guess back to thinking bungee LOL.
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