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Search: Posts Made By: Bob93447
Showing results 1 to 25 of 290
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Forum: Seaplanes
08-25-2018, 08:08 AM
Replies: 510
Views: 115,878
Posted By Bob93447

NORTHSTAR WING ROCK I noticed yesterday...

NORTHSTAR WING ROCK

I noticed yesterday when flying my NorthStar at slow speed in a crosswind condition that I was experiencing fairly severe wing rock. Has anyone developed solutions to this...
Forum: Seaplanes
08-15-2018, 02:17 PM
Replies: 11
Views: 1,374
Posted By Bob93447

Definitely fiberglass. After covering my...

Definitely fiberglass. After covering my NorthStar with a film, not monocote, I had all kinds of adhesion problems in the areas that got wet. I peeled off all the stuff that normally touches water...
Forum: Seaplanes
11-17-2017, 09:57 PM
Replies: 1
Views: 772
Posted By Bob93447

Keep checking the ads on this site and on...

Keep checking the ads on this site and on RCGroups. I got my second one from an estate sale that came up on RCGroups. There were several on the East Coast last year that were for local pickup. ...
Forum: Seaplanes
10-11-2017, 09:50 AM
Replies: 1,448
Views: 204,861
Posted By Bob93447

Seawind available in Tasmania

If anyone in Southern Australia is desperate to acquire a New-in-Box Seawind there is one available at Nick's Hobby Shop near Sorell, Tasmania. I found it as part of a side trip (my wife made me...
Forum: Seaplanes
07-17-2017, 08:01 PM
Replies: 1,448
Views: 204,861
Posted By Bob93447

No, but JRF who last posted on 6-29-17 might sell...

No, but JRF who last posted on 6-29-17 might sell you the one he just built. Its set up for electric but you might be able to convert it to take your YS. He's in SoCal.

Bob
Forum: Seaplanes
07-17-2017, 01:11 PM
Replies: 1,448
Views: 204,861
Posted By Bob93447

I was lucky, I found a New In Box replacement for...

I was lucky, I found a New In Box replacement for mine. It was part of an estate sale I found in the RCGroups classified ads. I did find, however, that the centerline for the motor marked on the...
Forum: Seaplanes
07-15-2017, 09:45 PM
Replies: 1,448
Views: 204,861
Posted By Bob93447

HI Matt I've taken a slightly different...

HI Matt I've taken a slightly different approach to the servos on my current Seawind. There is a new generation of small, lightweight, high torque digital servos that are available so I am...
Forum: Seaplanes
07-15-2017, 07:14 AM
Replies: 1,448
Views: 204,861
Posted By Bob93447

Matt, It sounds like you had a nice...

Matt,

It sounds like you had a nice setup on your Seawind. I was surprised that you were able to get the balance right just by moving the servos forward but the 2.25" point is about where the...
Forum: Seaplanes
07-06-2017, 07:15 AM
Replies: 1,448
Views: 204,861
Posted By Bob93447

The other "modification" that really helps avoid...

The other "modification" that really helps avoid waterloops when taking off with the 60 size Seawind is to minimize rudder throw during takeoff. I set mine up so that during takeoff I am using a 10%...
Forum: Seaplanes
06-08-2017, 01:16 PM
Replies: 609
Views: 97,549
Posted By Bob93447

RDIV, I am enjoying watching your...

RDIV,

I am enjoying watching your progress. It looks like an interesting way to build planes. What are you planning to use for covering?
Forum: Seaplanes
05-31-2017, 09:04 AM
Replies: 609
Views: 97,549
Posted By Bob93447

Good Progress! What's the purpose of the extra...

Good Progress! What's the purpose of the extra structure in the center section?
Forum: Seaplanes
05-22-2017, 09:21 AM
Replies: 609
Views: 97,549
Posted By Bob93447

Northstar off the water, After a few...

Northstar off the water,

After a few successful test flights of my Northstar flying off of snow, I was able to do the "water maiden" over the weekend. I'm flying with a Hyperion 3026-970KV...
Forum: Seaplanes
05-08-2017, 09:03 AM
Replies: 609
Views: 97,549
Posted By Bob93447

Rob, The thread you are looking for is...

Rob,

The thread you are looking for is called "Northstar Redo" over on RCG. The author is pmisuinas. His NS came in at 5.5 lbs with a 4 cell lipo in place. Most of what he did was substitute...
Forum: Seaplanes
05-07-2017, 08:41 AM
Replies: 609
Views: 97,549
Posted By Bob93447

Rob, I believe you need to rethink your...

Rob,

I believe you need to rethink your strategy on the lightweight NS. If it is balanced correctly and you remove 200 grams of motor weight, which is behind the cg, you need to remove weight...
Forum: Seaplanes
05-03-2017, 08:28 AM
Replies: 609
Views: 97,549
Posted By Bob93447

Rob, I forgot to mention that I am flying...

Rob,

I forgot to mention that I am flying my Northstar from a lake at an altitude of 1900 meters. It makes a big difference when you use eCalc.

If you are looking to build a "go fast"...
Forum: Seaplanes
04-30-2017, 09:04 PM
Replies: 609
Views: 97,549
Posted By Bob93447

No, I am not thinking about moving the ESC into...

No, I am not thinking about moving the ESC into the pod, I will just move it back a few cm to the compartment that is just to the rear of the forward hatch. It will still require motor leads of at...
Forum: Seaplanes
04-29-2017, 01:57 PM
Replies: 609
Views: 97,549
Posted By Bob93447

Rob, The motor is a Hyperion Zs3026...

Rob,

The motor is a Hyperion Zs3026 with a 970 KV rating. Weight is about 200 grams and it has about a 70 amp limit. (Hyperion motors were manufactured in the same facility as Scorpion Motors...
Forum: Seaplanes
04-28-2017, 07:29 PM
Replies: 609
Views: 97,549
Posted By Bob93447

Rob, I am flying an electric Northstar and I...

Rob,

I am flying an electric Northstar and I located my rudder and elevator servos in the pylon. Both are 25 gram servos and even with that weight in the tail it balances at about 1.5" in front...
03-21-2017, 07:51 AM
Replies: 14
Views: 2,293
Posted By Bob93447

Thank you. My garage is a bit cooler than...

Thank you. My garage is a bit cooler than recommended so I will need to wait a few months for things to warm up. I did get a small sample to cure using a heat gun but I don't want to risk messing...
03-20-2017, 08:50 AM
Replies: 14
Views: 2,293
Posted By Bob93447

What is the lowest temperature which will allow...

What is the lowest temperature which will allow Z-Poxy to cure?
Forum: Seaplanes
02-09-2017, 11:45 PM
Replies: 1,448
Views: 204,861
Posted By Bob93447

Has anyone ever tried to take the weight out of...

Has anyone ever tried to take the weight out of the nose of the Seawind? It looks like the grey mass which is in the nose might be as heavy as 1 pound. For those of us who are flying electric could...
Forum: Seaplanes
02-05-2017, 09:33 AM
Replies: 510
Views: 115,878
Posted By Bob93447

The Arrow should handle a lot of power. If you...

The Arrow should handle a lot of power. If you look at the last post in the "Northstar mods" topic, someone is turning a 10x7x3 blade prop at over 16K RPM (putting over 2000 watts into the airframe,...
Forum: Seaplanes
02-03-2017, 09:50 AM
Replies: 609
Views: 97,549
Posted By Bob93447

16K rpm with a 10x7 3 blade must lead to an...

16K rpm with a 10x7 3 blade must lead to an insanely fast Northstar. Where is your best flying CG?

I'm still sorting mine out. I did not taper the ailerons which makes them quite sensitive. But...
Forum: Seaplanes
01-30-2017, 10:18 AM
Replies: 609
Views: 97,549
Posted By Bob93447

OLD Northstar finally gets airborne

I finally did the maiden flight on my Balsa USA Northstar which was given to me as a kit in 1988. Since the plane is currently located in South Lake Tahoe, the first flight was off of snow since...
Forum: Seaplanes
12-22-2016, 10:52 AM
Replies: 1,448
Views: 204,861
Posted By Bob93447

I'm interested. What cosmetic damage? I'll be in...

I'm interested. What cosmetic damage? I'll be in LA in January so possibly we can meet.
Showing results 1 to 25 of 290
 


 
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