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DerJet F-35A

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Old 03-30-2015, 08:11 AM
  #26
Dave Wilshere
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My cockpit arrived earlier-looks amazing!
Build starts properly soon!
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Old 03-30-2015, 08:15 AM
  #27
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How did the prototype fly Dave? I've hard they tend to be pitch sensititve so they require very little elevator throw.
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Old 03-30-2015, 09:34 AM
  #28
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Jack would be the man to answer as he's the only one who has flown one yet!
I hope to have mine flying in April...will find out then!

Dave
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Old 03-30-2015, 10:07 AM
  #29
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You might consider some beefing up on the stab mounts, they dont look like they are even metal?
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Old 03-30-2015, 12:19 PM
  #30
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They are composite board and plenty strong enough...

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Old 03-30-2015, 12:41 PM
  #31
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Quote:
Originally Posted by sysiek View Post
Hi I'm intrested to buy the jet so how much Is it and how much is the cockpit ? Please respound jet central or other dealers thanks.
I think post #14 already stated they don't have a price yet
Eric also posted his contact info so you can call and discuss...
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Old 03-30-2015, 12:55 PM
  #32
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This is looking more appealing.......Could thrust vectoring be added to the air frame?
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Old 03-30-2015, 01:32 PM
  #33
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Quote:
Originally Posted by FlyEng View Post
This is looking more appealing.......Could thrust vectoring be added to the air frame?
I don't think its suitable. Ideal turbine will be 100-120 size and its short coupled, vector system adds weight and it will be very difficult to stop it once its spinning!
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Old 03-30-2015, 04:59 PM
  #34
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I have contacted Eric as well. I am very interested in this jet but need to have flight reports from a creditable source before I go for it. So glad that DW is doing this! His word is law. So for Dave i will say that now that i am flying jets i want one that is good at high aplha flight and bat turns. Something different. Jets like the various delta wing birds and canard types like Eurojets and J10's and Rafales, the F22 as well. I hope the F35 has these handling traits. I hope for good short field capabilities as well.
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Old 04-02-2015, 06:38 AM
  #35
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Quote:
Originally Posted by Dave Wilshere View Post
Jack would be the man to answer as he's the only one who has flown one yet!
I hope to have mine flying in April...will find out then!

Dave
Thank you, Dave

Enclosed youtube video was one of test flights of F-35A prototype, installed with the JetCat P100 turbine.

Jack, managing director, DerJet Model https://www.youtube.com/watch?v=u6dbuj0Cnvc
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Old 04-02-2015, 08:22 AM
  #36
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damn it, they edited out the landing just before touch down!
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Old 04-02-2015, 08:40 AM
  #37
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I am guessing it did not go well judging by the approach and decent speed
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Old 04-02-2015, 09:19 AM
  #38
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Well that video does not make me want to go out and buy one...... Flew like crap I thought. Why not get it dialed in with the gear working and flying well then post a video?
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Old 04-02-2015, 10:05 AM
  #39
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Curious about the 22 that was in the video as well.
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Old 04-02-2015, 02:48 PM
  #40
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Quote:
Originally Posted by gunradd View Post
Well that video does not make me want to go out and buy one...... Flew like crap I thought. Why not get it dialed in with the gear working and flying well then post a video?
I feel the same. The video really made me reconsider this jet. From the moment it over rotated and leaped into the air it was kinda hard to watch. It is either pretty unstable or it was poorly flown. That could be due to a lot of things but it is not encouraging. Leaving the gear down and editing out the landing was to me a bad sign also. Now I am going to have to see one well flown with a working gear before I write any checks. I am cautiously optimistic though!
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Old 04-02-2015, 03:17 PM
  #41
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How many of us have had a maiden flight that went perfectly?

Having said that, what Im not impressed at is editing out a landing from an otherwise shaky flight.

I don't wish to discourage the manufacturer from posting early videos, but to remove the part we want to see, no matter how poor it was.....

we could already tell from the approach that it wasn't going to be a great landing, no need to hide it

Were interested in your plane, and are more than willing to forgive early unstable flights, but removing footage is not cool.

But whats with the chinese characters- if i wanted a chinese ARF, id buy a JL F35.
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Old 04-02-2015, 03:34 PM
  #42
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If this plane is ready to sell I hope they have done at least 50 hard well trimmed flights with everything working. If that flight was the only flight it has done then they start selling it that's bad news. That is my only thing. They must have had some better flights with it all trimmed out that they could have taken video. Derjet has always seemed like a good company so pretty sure its been flown more. Now flyeage would have put it into mass production after a flight like that lol.

Quote:
Originally Posted by bidrseed2 View Post
How many of us have had a maiden flight that went perfectly?

Having said that, what Im not impressed at is editing out a landing from an otherwise shaky flight.

I don't wish to discourage the manufacturer from posting early videos, but to remove the part we want to see, no matter how poor it was.....

we could already tell from the approach that it wasn't going to be a great landing, no need to hide it

Were interested in your plane, and are more than willing to forgive early unstable flights, but removing footage is not cool.

But whats with the chinese characters- if i wanted a chinese ARF, id buy a JL F35.
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Old 04-02-2015, 04:23 PM
  #43
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Guys chill. The videos of the first FEJ F-35s were similar. It is pitch sensitive so it takes some getting used to. But once trimmed and set they fly good.
The pilot is not aware that the JSF sucks with gear extended. Lots of side load and drag. The area looks crappy for test flying too.

I wouldnt be discouraged. I'm sure it will fly fine once they nail down the CG and controls.
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Old 04-02-2015, 04:35 PM
  #44
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Well I didn't have any issues with the flight (it's a maiden) but editing out the landing completely is sketchy as hell imo
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Old 04-02-2015, 05:23 PM
  #45
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Yes he probably face palmed!
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Old 04-02-2015, 06:18 PM
  #46
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Not to beat a dead horse but derjet did not say that that was a video of the maiden flight. He said it was one of the test flights.
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Old 04-02-2015, 11:28 PM
  #47
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Is that the final version of the undercarriage or will it be scale on the production version?
Any word on a cockpit for it?
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Old 04-03-2015, 12:19 AM
  #48
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Quote:
Originally Posted by xfhxgh View Post
Is that the final version of the undercarriage or will it be scale on the production version?
Any word on a cockpit for it?
Patience my friends, I agree with everything said, but I saw enough to know the product will be good. There are several thing s about that first model not known, like tight live hinges and locked gear. No flap on take off etc etc.

The cockpit question! There is a picture at the top of the page.
I'll push to have mine flying weekend of April 18-19


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Old 04-25-2015, 02:35 AM
  #49
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Quote:
Originally Posted by Dave Wilshere View Post
Patience my friends, I agree with everything said, but I saw enough to know the product will be good. There are several thing s about that first model not known, like tight live hinges and locked gear. No flap on take off etc etc.

The cockpit question! There is a picture at the top of the page.
I'll push to have mine flying weekend of April 18-19


Dave
Status update on the build and maiden?
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Old 04-25-2015, 07:39 AM
  #50
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Unfortunately I have struggled with time and have only done minor jobs. Too busy in the office and then a short holiday meant I missed the hoped for date last weekend. We have another meeting early May that is my next target! Will post as I progress.
Jack has emailed today with a hurry up call :-)

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