Martin Lagerstedt

Here are some Videos of my own 1/40 scale Spruce Goose and my fathers 1/4 scale Anderson Kingfisher.
Enjoy!

Spruce Goose page: http://w1.877.telia.com/~u87708929/goose.htm

Anderson Kingfisher:
http://w1.182.telia.com/~u18215169/Kingfisher.wmv 5,8MB

Regards
Martin Lagerstedt

beardking

My Feedback: (4)

Martin, I'd like to know where you got plans to build that plane. You did a great job and I've been looking for plans for that thing since I got into this hobby (about a year ago).

BTW: The flight video was pretty cool. Where your props hitting the water at the beginning of that takeoff?

Martin Lagerstedt

My father and I made our own plans for the Spruce Goose based on a 3-view and a photoset from Bob Banka: http://www.bobsairdoc.com/


>BTW: The flight video was pretty cool. Where your props hitting the water at the beginning of that takeoff?

The props are not hitting the water. What you hear are waterspray from the nose (bow?) wave hitting the inner props. When the Goose gains some speed it raises from the water and the waterspray in the inner props disappears.

Regards
Martin

beardking

My Feedback: (4)

Aha, that explains that noise.

So, I don't guess you did those plans in CAD, did you?

seaplane

Two weekends ago, I attended a 2 day float fly in Michigan and I saw Laddie Mikulasko, who designed the North Star, Laker, and Canadian Arrow (to name a few). He was flying an all electric Spruce Goose. Maybe you could contact him for info..........Seaplane

Neo02

Hi Martin,

I was thinking about building a Spruce Goose myself this winter, and I have a couple more questions, if I don't bother you.

1) How many minutes can you fly with the 2x14 batteries?
2) Do you have one or more speed controllers?

Thanks in advance for your time and enjoy flying (off water)!

Regards,
-Fabrizio

Martin Lagerstedt

Hi Fabrizio,

I use two separate power systems (for security if one system fails).
Each system consists of 1 speedcontroller with 14 cells powering 4 motors.
The four outer is one system and the four inner motor is the other.
The wiring of each system is like this: The two motors in the left wing are wired in serie and running on 14 cells. They are then wired in parallel with the other two motors in the right wing.

The capacity of the batteries that I have in my model is 1700mAh Nicad. This gives me a flying duration of maybe 7 minutes (in good weather). If you want more duration you can replace the 1700mAh battery with 3300 NiMh and get almost twice the duration.

Regards
Martin

Neo02

Hi Martin,

thank you very much for the valuable information, now that's interesting! I am experimenting in electric flight, flew a Ju-52 from Graupner last year and today I just finished building an Aventura Twin seaplane, which will hopefully fly next weekend. Your post gave me some ideas as for my next project, which I will take to the international seaplane competitions held in Europe throughout the year - we just organised our international competition in Lugano (Switzerland) last week and it was a great success - 23 pilots in F3A-Hydro and 10 pilots in semiscale. Will try to post some pictures as soon as possible.

Regards,
-Fabrizio