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Search: Posts Made By: underdw
Showing results 1 to 25 of 36
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Forum: Electric Pattern Aircraft
10-08-2017, 04:49 AM
Replies: 2,031
Views: 683,955
Posted By underdw

The Allure nose ring has only a very slight right...

The Allure nose ring has only a very slight right thrust built into it. No need for a special fuse - just shim in a touch of left thrust for your contra.
Forum: Electric Pattern Aircraft
05-14-2017, 06:04 AM
Replies: 2,031
Views: 683,955
Posted By underdw

Updated 6/30/17 after failure. My mount system...

Updated 6/30/17 after failure. My mount system described and pictured below reduced the motor pinion engagement into the drive to about 3/16". This resulted in the drive pinion receptacle teeth...
Forum: Electric Pattern Aircraft
01-29-2017, 04:28 PM
Replies: 2,031
Views: 683,955
Posted By underdw

Thanks for the post Peter. I have a couple of V3...

Thanks for the post Peter. I have a couple of V3 drives that I love and run flawlessly.....except that the Neu motors fry about every 2 years.
Did you just buy the manifold Brenner makes for the...
Forum: Electric Pattern Aircraft
01-16-2017, 06:18 AM
Replies: 2,031
Views: 683,955
Posted By underdw

I've been using 22x18F, 22x20R for years with...

I've been using 22x18F, 22x20R for years with enough bliss such that I haven't experimented with props much.
Would energy usage go up with the larger props being discussed here, or would it be...
Forum: Electric Pattern Aircraft
11-16-2016, 03:06 PM
Replies: 2,031
Views: 683,955
Posted By underdw

Hi Peter, I had a similar experience. I had...

Hi Peter,
I had a similar experience. I had noticed increasing energy consumption during flights, but shrugged it off to windy conditions.
Then I went dead stick, and as I flew directly at...
Forum: Electric Pattern Aircraft
06-21-2016, 11:07 AM
Replies: 2,031
Views: 683,955
Posted By underdw

I had always thought that the original mounting...

I had always thought that the original mounting of the needle bearing in a rubber grommet was a good idea in that it would allow the bearing axis to self-align with the motor shaft. Perhaps when we...
Forum: Electric Pattern Aircraft
05-31-2016, 06:42 AM
Replies: 2,031
Views: 683,955
Posted By underdw

As an added note: You will need to use the white...

As an added note: You will need to use the white plastic standoffs that came with the original mounting grommets. These insert through the middle of the grommet assembly and are critical to the...
Forum: Electric Pattern Aircraft
12-07-2015, 07:17 AM
Replies: 2,031
Views: 683,955
Posted By underdw

Hi Brenner, Might I suggest funding your...

Hi Brenner,
Might I suggest funding your initial V4 manufacturing by taking deposits from customers? Your reputation and support have built you a loyal, trusting base of customers.
Dan
Forum: Electric Pattern Aircraft
04-05-2015, 06:08 PM
Replies: 2,031
Views: 683,955
Posted By underdw

Wow, sounds fantastic! You guys are a great...

Wow, sounds fantastic! You guys are a great engineering/manufacturing team!
Sign me up for one!
Dan
Forum: Electric Pattern Aircraft
11-25-2014, 06:23 AM
Replies: 2,031
Views: 683,955
Posted By underdw

Thanks for the detailed info Dave! Couple of...

Thanks for the detailed info Dave!
Couple of questions:
1) Does the throttle tech save you energy (mah) during a flight? Are you sold on it, and if so, why?
2) Have any Contra flyers have trouble...
Forum: Electric Pattern Aircraft
11-18-2014, 01:31 PM
Replies: 2,031
Views: 683,955
Posted By underdw

Mike, Will that "optional" mount come with our...

Mike,
Will that "optional" mount come with our planes, or is it purchased separately?
Really looking forward to an early Christmas!
Dan
Forum: Electric Pattern Aircraft
11-17-2014, 12:26 PM
Replies: 2,031
Views: 683,955
Posted By underdw

The 2.5mm screws will drop down through the...

The 2.5mm screws will drop down through the clearance holes shown in your picture. You will have to be sure that these holes are aligned with the counterbored holes in the bearing clamp underneath...
Forum: Electric Pattern Aircraft
10-27-2014, 05:31 PM
Replies: 2,031
Views: 683,955
Posted By underdw

Now we need the details on the V4 Brenner! :)

Now we need the details on the V4 Brenner! :)
Forum: Electric Pattern Aircraft
08-20-2014, 05:31 AM
Replies: 2,031
Views: 683,955
Posted By underdw

I don't recall seeing posts comparing the 2...

I don't recall seeing posts comparing the 2 stiffness of Budd mounts.
I just got a chance to compare them subjectively on my BJ Craft Episode. I had started with the soft version and thought...
Forum: Electric Pattern Aircraft
05-09-2013, 07:48 AM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Perhaps I don't understand what you are asking, but it sounds like you are suggesting a perpetual motion machine. You can't drive a motor with batteries and then drive a generator with the motor and...
Forum: Electric Pattern Aircraft
12-13-2012, 06:02 PM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

A follow up on my worn pinion issue:

Brenner has been wonderful and is replacing the drive pinion and bearings. He had to do a bit of work to figure out what would work with my down-level...
Forum: Electric Pattern Aircraft
12-02-2012, 07:45 PM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

New design looks great Brenner!
Is the new receptable intended to sacrificially wear so that is a maintenance item? (I'm all in favor of this wearing as opposed to the motor pinion)
My gearcase...
Forum: Electric Pattern Aircraft
11-30-2012, 06:01 AM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Thanks guys,

I will of course make the case for reduced repair cost, but given the severity of the wear, it's hard to argue that no significant wear would have occurred had the extra 3mm tooth...
Forum: Electric Pattern Aircraft
11-29-2012, 07:20 PM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Sorry to interrupt a great discussion.....

Brenner, back to the new Neu adaptor: do you have an estimate as to when it will be available?

I took apart my drive tonight and found that 4 of...
Forum: Electric Pattern Aircraft
11-09-2012, 05:53 AM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Brenner,
Great news on the new adaptor/insert - sign me up when it's ready. Will it fit in my version 2 (I think) drive? (I'm not really interested in upgrading to the latest version) Will it be...
Forum: Electric Pattern Aircraft
11-08-2012, 11:57 AM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Good find Brenner!
I'm 90% certain mine stick out that 2.5mm. I'm 100% certain it came that way new - I've never opened it our had it serviced.
Dan
Forum: Electric Pattern Aircraft
08-02-2012, 03:42 PM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Chuck Schone from CO is coming to your contest, I think with his contra/Spark.
Forum: Electric Pattern Aircraft
07-25-2012, 10:53 AM
Replies: 2,031
Views: 683,955
Posted By underdw

RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes

Is Dave Lockhart flying a Contra?

How are the Contras doing in the sound checks? Must be OK.
Showing results 1 to 25 of 36
 
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