Official Freewing JAS 39 Gripen 80mm EDF Jet

Collapse
X
Collapse
First Prev Next Last
 
  • Time
  • Show
Clear All
new posts
  • Quickstop
    Member

    • Jul 2017
    • 275
    • Send PM

    #221
    Originally posted by Jlink125
    Probably because they don't have flaps.
    Rearward view showing fully deployed flaps, left elevon up, right elevon neutral
    and rudder to the right.
    Click image for larger version

Name:	F8C01319-7423-4273-8BC0-BAF7D883A714.jpeg
Views:	887
Size:	44.1 KB
ID:	272421

    Comment

    • Evan D
      I'll fly anything

      • Jan 2016
      • 5385
      • Charlotte
      • Send PM

      #222
      Oh no you didn’t!

      Comment

      • Robert Belluomini
        Lithium Member

        • Jan 2016
        • 336
        • Send PM

        #223
        Those are elevons

        The wings were midbody-mounted to provide clearance for underwing stores, each wing having a leading-edge flap, plus two trailing-edge drooping "elevons" to improve short-field performance and maneuverability.

        Comment

        • Quickstop
          Member

          • Jul 2017
          • 275
          • Send PM

          #224
          Originally posted by Robert Belluomini
          Those are elevons

          The wings were midbody-mounted to provide clearance for underwing stores, each wing having a leading-edge flap, plus two trailing-edge drooping "elevons" to improve short-field performance and maneuverability.
          Ok, then what are the outboard devices that look like ailerons

          Comment

          • Airguardian
            Post Stall Svengali

            • Aug 2020
            • 1664
            • Catalonia
            • Send PM

            #225
            They likely didn't because it would add weight cost and complexity, that many would deem unnecessary for the model.
            And indeed the jet certainly does not need them to fly fantastically.

            Personally I would have digged the jet having the split full-span elevons, but I bought regardless so...
            How many people would have been turned off by the wings having 2 servos each instead of 1 and all mixing associated?
            Certainly more than those who will not buy the jet because it didn't feature split elevons (if any).

            I would also have prefered full span elevons with 17g servos too, if split elevons were not to be, but then again... not like I'm complaining! ;)

            Originally posted by janmb
            Meh, that's nothing compared to Norway! We have contributed with plundering, arson, murder, rape all the way from the Scottish highlands down to Miklagard (Istanbul). In short - vikings! :D
            ROFL.
            That made my day.

            Originally posted by Spinny Testaverde
            🧐
            That is sweeeeeeeeeet! :DDDDDDDD

            Notice how 'scale' it looks dragging its arse around!
            There's why I love deltas!

            Comment

            • Airguardian
              Post Stall Svengali

              • Aug 2020
              • 1664
              • Catalonia
              • Send PM

              #226
              Originally posted by Quickstop

              Ok, then what are the outboard devices that look like ailerons
              Also elevons.

              Comment

              • Quickstop
                Member

                • Jul 2017
                • 275
                • Send PM

                #227
                You are correct, apparently they have inboard and outboard elervons🤔

                Comment

                • Airguardian
                  Post Stall Svengali

                  • Aug 2020
                  • 1664
                  • Catalonia
                  • Send PM

                  #228
                  Just like the Eurofighter and Rafale ;)

                  Comment

                  • Jlink125
                    Member

                    • Dec 2016
                    • 24
                    • Apple Valley Ca.
                    • Send PM

                    #229
                    Also the mirage and kfir utize multi piece elevons.

                    Comment

                    • crxmanpat
                      Certified Foam Abuser

                      • Oct 2014
                      • 2464
                      • Crawfordville, FL
                      • Send PM

                      #230
                      Originally posted by Airguardian
                      Just like the Eurofighter and Rafale ;)
                      And the Draken.
                      Pat

                      Comment

                      • Miroslav Cerny
                        Member

                        • Oct 2018
                        • 42
                        • Send PM

                        #231
                        James could tell what the landing speed is. That's important. The flaps on the Mig 21 were effective when landing.

                        Comment

                        • Jlink125
                          Member

                          • Dec 2016
                          • 24
                          • Apple Valley Ca.
                          • Send PM

                          #232
                          Originally posted by crxmanpat
                          And the Draken.
                          Oh yeah! That's another awesome delta!

                          Comment

                          • Miroslav Cerny
                            Member

                            • Oct 2018
                            • 42
                            • Send PM

                            #233
                            It is possible that the flaps will be finished. I did it on two models and it worked.

                            Comment

                            • russ t
                              Accomplished pilot

                              • Oct 2017
                              • 11
                              • Vancouver, Canada
                              • Send PM

                              #234
                              I worry that the bottom thrust vector servo and push rod will drag on the grass in high angle of attack take offs and landings. I don't have a nice paved runway, but this is advertised as a grass capable jet. Alpha, has the TV unit been tried on grass?
                              Thanks, RT.

                              Comment

                              • CFIT rob
                                Any landing you can walk away from....

                                • Jul 2016
                                • 220
                                • Indy
                                • Send PM

                                #235
                                I really miss my Eurofighter(nothing crashes like EPS). The TV tail was the deal maker on my gripen pre-order. Are you going to make enough of the TV tail? How about a pre-order for them? To add to the nose gear placement discussion...my euro was as tipsy as my ex wife at all day cocktail hour. I had to keep a supply of canards on hand. Don't underestimate how careful you have to be with a tippy aircraft. And what a PITA its is.(just like my ex-wife.)Thank you alpha for the compromise.
                                Still flying P.15, avanti(#2), mig 21, yak 130 70mm(#2), f35, f9f panther, a10 64mm, F8 crusader/ PA ultimate amr /HK skipper, durafly dh vampire, p 51,spit mk24, corsair, flybeam/ BH f86 50mm, deltawing 50mm/ HH su 26 mm,umx pitts,umx sbach, blade nano cp s,blade 450x, inductrix 200, inductrix pro, umx yak 54,umx f27 fpv/ electrifly 4s L39/ flyzone beaver/ volantix asw 28, /dynam B26

                                RIP.. roc hobby waco,strega #2(you will be missed), Fw 90mm eurofighter.

                                Comment

                                • janmb
                                  Slow and low

                                  • Jan 2018
                                  • 729
                                  • Send PM

                                  #236
                                  Originally posted by Jlink125
                                  Probably because they don't have flaps.
                                  They do

                                  (Or as others have pointed out, inner and outer elevons. The point remains)
                                  Freewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversion

                                  Comment

                                  • Mizer67
                                    Member

                                    • Mar 2016
                                    • 374
                                    • Send PM

                                    #237
                                    Less weight is a good thing in my book.

                                    I'd be surprised if the plane already doesn't land pretty slowly given the wing loading and delta wing.

                                    Comment

                                    • Miroslav Cerny
                                      Member

                                      • Oct 2018
                                      • 42
                                      • Send PM

                                      #238


                                      I saw this performance with my own eyes, something incredible. This is the expected GRIPEN. Just for the sake of interest.

                                      Comment

                                      • Miroslav Cerny
                                        Member

                                        • Oct 2018
                                        • 42
                                        • Send PM

                                        #239

                                        Comment

                                        • Airguardian
                                          Post Stall Svengali

                                          • Aug 2020
                                          • 1664
                                          • Catalonia
                                          • Send PM

                                          #240
                                          Outstanding!

                                          Comment

                                          Working...