Seaplanes Aircraft that typically take off and land on water...radio control seaplane discussions are in here.

Turbine powered WETJET

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Old 10-27-2018, 03:46 PM
  #101  
Vettster
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Just snooping to see if the photo uploader has improved lol This photo is from last year. Was working on the engine pod molds. All molds were finished last winter.

Last edited by Vettster; 10-27-2018 at 03:48 PM.
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Old 10-29-2018, 11:05 AM
  #102  
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Great to see it back again. I am building a self design "dry" jet.
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Old 10-31-2018, 05:27 AM
  #103  
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Originally Posted by nilsreinert123 View Post
Great to see it back again. I am building a self design "dry" jet.
Hey Thanks nilsreinert123.. I checked out your build and it looks great! A very good start. That was in Sept so you must have come a long way since then. You need to update your thread
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Old 11-01-2018, 08:34 AM
  #104  
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Thanks Vettster ,nice to hear. Yes i have to update my thread soon !
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Old 11-30-2018, 03:46 PM
  #105  
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Finally home long enough to open the mold... I have a fuselage!! Name:  smile.png
Views: 110
Size:  819 Bytes Very happy with the results.

Weight so far...
2 wings...1273
2 Horizontal stabs..654
Fuse..2155
Total...4082 grams or 9 lbs

Still have to include the vertical stab,wing tips and ailerons..so possibly under 12 lbs. Much lighter than I expected. I was figuring about 15 lbs. The wings will be made much lighter in the future as I have redesigned my method for holding the wings on.
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Old 12-30-2018, 01:57 PM
  #106  
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Well Holy Smokes these forums are dead!! Not much point in posting here anymore.
Im ready to begin assembly of the WetJet as all the construction of parts and formers are finished. Hope to have it ready for a maiden in about a month or two, as its time to return to work and killer long hours, so not much time to build. Check out the Assembly and Maiden over at RCGroups.
https://www.rcgroups.com/forums/show...0#post40795839
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Old 01-03-2019, 01:38 PM
  #107  
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I've been following you progress all along and I remain impressed with your glass work. I may have mentioned this before but now that you near getting that bird wet I'll repeat myself. A couple of years ago I built a 125% NorthStar. I put twin vertical stabs on it and mounted the turbine on the to of the fuselage. It was a sleet looking plane on the water and took a good distance to get on plane. When it did break free of the water it took off like a shot, totally out of control, followed by a big splash. The root cause of the problem was me. I was not very familiar with delta wings and full span ailerons. There was much to much aileron throw leaving the roll axis very sensitive to the point that I couldn't catch up with it. Lesson learned and transferred to you. My guess is you will encounter the same, so dial in very little aileron throw to start with and have more throw available via the rate switch if you need it.
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Old 01-03-2019, 04:12 PM
  #108  
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Hey John! Good to hear from you again. Yes Ive been aware of how sensitive Deltas are for some time now. Im forever telling the nubs who show up at the field with a Delta to maiden, to dial down their ailerons from 2" to 2mm LOL. Thanks though! I do appreciate any help you can throw my way... and thanks for the kind words.
Here's an old vid of my first delta for your entertainment. Its got a great ending so watch it in full.

Trevor
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Old 01-09-2019, 01:18 PM
  #109  
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On my Lochstar design (a development of Laddie's great NorthStar) the wing control surfaces were elevons.
[I found on some Northstars I flew previously that elevons gave much better pitch control than the elevator alone.]

I set the aileron authority at 5 to 7 degrees on high rate, and the elevator authority at double that.
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Old 01-11-2019, 02:08 PM
  #110  
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Thanks alasdair.. I will keep that in mind and try it after a few flights.

Trev
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Old 01-19-2019, 03:04 PM
  #111  
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Just need to run ESC wires.
Install battery tray.
Rx.
Do the CG.

And then I guess maiden the darn thing.


For Scale reference... Im 6' tall
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Old 01-20-2019, 09:51 AM
  #112  
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Looks great !
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Old 01-21-2019, 08:46 AM
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Hey Trevor, those aileron servo covers look very close to what I made for my Turbine NorthStar. Have you been in my work shop? Great minds think alike.
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Old 01-21-2019, 12:29 PM
  #114  
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Originally Posted by Square Nozzle View Post
Hey Trevor, those aileron servo covers look very close to what I made for my Turbine NorthStar. Have you been in my work shop? Great minds think alike.
Ha! Sorry to hear you spent time working on them.. I got em at Alibaba, 20 sets for about 30bucks

Today I got the CG set..(im not working outside in -35 windchill thanks) Not surprising that I had to add about 2lbs to the nose. Total takeoff weight with the electric version is 22.5lbs Pretty much the exact same as a Sprint jet however the Wetjet has a MUCH larger wing area and will carry twice that much weight if need be. lol Name:  wink.png
Views: 6
Size:  802 Bytes

Keep in mind that the next one out of the mold will be even lighter as I have redesigned the wing attachment method and that the Horizontal stabs will be much smaller. I do realize how huge they are Name:  sneakiness.png
Views: 5
Size:  683 Bytes lol Seemed like a good idea at the time
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