Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

My new Green Mean Machine! (Whiplash)

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Old 10-03-2002, 12:27 AM
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Glorfindel
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Default My new Green Mean Machine! (Whiplash)

I got my whiplash X about a weeks ago. Now it's painted (the pictures didnt have much resolution ) he is some pre-flight impression :

- The hinge line is WAY too hard to move, i think it could take about 50% of the servos power just to moove them...

- I tried to put the antena wire in the tube, there is no way i can do that. I even tried with stainless wire with no success, so the antena will be out of the plane....

- The servos are outside the fuse, more drag. They are too close from the center and force us to take longer servos arms. It's not a good idea with the 'too hard' elevon....

- The engine mount have to be cut to put a 'little' Q500 engine, the cut is not wide enough...

- Nice looking plane, better airfoil than the DD


Sorry for the poor quality of the immage i didnt edit it to lower the size..

- Will be VERY regid


I ordered a Jett Q500 engine. I runned it but i didnt get the 19300+ rpm that they advertise. I runned a 8.8x9 with 15%XP fuel at first i was getting only 18500 on a cold day...I purshased a gal. of PowerMaster 15% (same fuel as Jett take to test engine prior shipping) I tried it again with not munch success but it was kind of dark and i'm not sure with the last rpm reading, so i will give the engine another chance before sending it back to Jett.
Am i alone with these low rpm on the jett Q500?

I will run the Whiplash this weekend, will give my impression on flying
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Old 10-03-2002, 01:49 AM
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BAGOSTIX
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Default whiplash comments

What servos are you using? the elevons are stiff, but you dont need any more than 5/16 - 1/2" throw, anymore than that and you would be surprised by the reaction.

The antenna tube is 6mm I cant understand why it would go thru, try running a 2/56 rod thru it as far as you can go.

Is this a whiplash X or an older version? we did have problems with stiff ailerons and antenna tubes with some of the older units...please advise
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Old 10-03-2002, 02:02 PM
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JeffH
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Default Hinges

I have one of the early runs and my hinges are VERY stiff. Can I saw cut a few slots in the hinge to reduce the over all length of the hinge. I am talking about making a couple of 1 inch or so cuts about every 3 inches?

might look like this

-------------------- ------------------------ ---------------------
with the blank spots being the cuts
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Old 10-03-2002, 08:51 PM
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Default Whiplash color

I strongly suggest that you add some bright color markings on your plane before you fly it....It is very easy to lose track of against the sky, especially a sky with any gray clouds...and it is FAST!....
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