Herr Aquastar
The following users liked this post:
stevep101 (03-26-2021)
03-26-2021, 07:59 PM
#7
Maybe you need 10 posts or something. Here is my glow one with the chines. Still didn't take off, then I put a Norvel .06, It may have been a bit better but needed more break in time to get a good idle. I should probably get rid of some of my older stuff. The electric one still had nicads and a brushed motor.
03-27-2021, 02:31 PM
#9
Years ago, either a modeling magazine or publication of sorts had a short article about a hydrofoil added to the hull of a scale-like model of a 4-engine flying boat, but I can't find it in my collection of stuff or in an internet search -
Seems like it was a study conducted by some agency - perhaps NASA, with an acronym project name like HOW? (Hydrofoil Off Water?) -
It may not be practical to add in the case of a hand-launch capable airplane, but thought it might relate to the water take-off difficulties mentioned here.
I can't remember particulars - that's why I was looking for it - just thoughts that they may have been interested in "unsticking" the hull from the water surface tension using a simple hydrofoil mounted on struts that straddled the hull close to the step and wanted to share that idea here...
Seems like it was a study conducted by some agency - perhaps NASA, with an acronym project name like HOW? (Hydrofoil Off Water?) -
It may not be practical to add in the case of a hand-launch capable airplane, but thought it might relate to the water take-off difficulties mentioned here.
I can't remember particulars - that's why I was looking for it - just thoughts that they may have been interested in "unsticking" the hull from the water surface tension using a simple hydrofoil mounted on struts that straddled the hull close to the step and wanted to share that idea here...
Last edited by H5606; 03-27-2021 at 02:45 PM. Reason: Impracticality for grass landings
03-27-2021, 06:33 PM
#10
Probably not related, but interesting anyway. There was a "HOW" project. It was a C130 Hercules on water proposal
to use an existing proven design to get the Navy an amphibian without all the development costs.
The plan was to have a limited flotation hull, and a extendable ski that would be deployed as the airplane accelerated, and essentially "jack" the airplane off the water. The project didn't get very far, but I learned about it from Lanier Models'
who were approached to build a model to prove the concept. Lanier could have built a successful model, but they had
a lot of interference from Lockheed over nit picking specks like how much the stab on the model would weigh. Interesting,
but probably forgotten history.
to use an existing proven design to get the Navy an amphibian without all the development costs.
The plan was to have a limited flotation hull, and a extendable ski that would be deployed as the airplane accelerated, and essentially "jack" the airplane off the water. The project didn't get very far, but I learned about it from Lanier Models'
who were approached to build a model to prove the concept. Lanier could have built a successful model, but they had
a lot of interference from Lockheed over nit picking specks like how much the stab on the model would weigh. Interesting,
but probably forgotten history.
The following users liked this post:
stevep101 (03-28-2021)
03-28-2021, 04:16 PM
#11
Very interesting concepts. I can see adding a "ski" of sorts to lift the plane up on plane . As soon as im able i'll post picks here. I may even try to design something in CAD and 3D print it .
03-28-2021, 05:33 PM
#12
I built an electric aquastar and with (and only after) the addition of chines and a sharper step it flew so good! I forgot what ever happened to it, I think some non flying related thing. I made one modification that was sort of functional but very cool, I put sub micro servos in the wingtips to drop down tip floats and retract them. It was worth every bit of trouble!
The following users liked this post:
stevep101 (03-29-2021)
03-29-2021, 08:20 AM
#13
The following users liked this post:
stevep101 (03-29-2021)
03-29-2021, 01:06 PM
#14
I built an electric aquastar and with (and only after) the addition of chines and a sharper step it flew so good! I forgot what ever happened to it, I think some non flying related thing. I made one modification that was sort of functional but very cool, I put sub micro servos in the wingtips to drop down tip floats and retract them. It was worth every bit of trouble!
That is a very interesting idea for sure. I'm gonna try the stock configuration 1st and go from there.
03-29-2021, 01:09 PM
#15
I believe its the shape of the hull. The design itself.. the V bottom.. apparently prohibits it from raising up. Modifying to a flat bottom is one sure fix I've seen.
03-30-2021, 04:38 AM
#16
I think the later kits had a slip of paper showing the chines on the front. The red plane that I posted has clear plastic chines but it still did not ROW. Maybe more power or more lightness needs to be added. The electric one was quite heavy with the nicads. LiPo and brushless would maybe get it up. While I live on Lake Erie, I really have no place to fly as I would surely need a retrieval boat. It is difficult to launch over the rock wall.
04-01-2021, 01:57 PM
#17
I think the later kits had a slip of paper showing the chines on the front. The red plane that I posted has clear plastic chines but it still did not ROW. Maybe more power or more lightness needs to be added. The electric one was quite heavy with the nicads. LiPo and brushless would maybe get it up. While I live on Lake Erie, I really have no place to fly as I would surely need a retrieval boat. It is difficult to launch over the rock wall.
