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Official Whiplash Tech Site

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

Official Whiplash Tech Site

Old 01-20-2016, 07:07 PM
  #101  
dirt dummy
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There is a whiplash in the classified section. I don't know for how long because the more I look at it the more I want to build it.
Old 01-20-2016, 07:11 PM
  #102  
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Put a JETT FIRE 50 or 56 on on it and go balistic!

Nobody makes a FAST delta wing anymore... It should sell fast
Old 01-20-2016, 07:21 PM
  #103  
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Originally Posted by Crazy4Flight View Post
Put a JETT FIRE 50 or 56 on on it and go balistic!

Nobody makes a FAST delta wing anymore... It should sell fast
It is sad the way all RC has gone.
Old 01-20-2016, 07:22 PM
  #104  
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Electrics suck
Old 01-20-2016, 07:40 PM
  #105  
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Originally Posted by mrhp View Post
Electrics suck
Batteries are for flashlights! Flashlights are for people that are scared of the dark!
Old 01-20-2016, 07:42 PM
  #106  
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Electrics have no soul
Old 01-20-2016, 07:44 PM
  #107  
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flashlights a storage containers for dead batteries
Old 01-20-2016, 09:08 PM
  #108  
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Originally Posted by mrhp View Post
Electrics have no soul
Sure there are souls.

Now say it without reading it..
Old 01-21-2016, 05:07 PM
  #109  
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I can understand engine collectors who build custom showcases for these mechanical marvels, give them special effect lighting, do historical research, polish them, restore their innards with custom made piston rings, new bearings, restored ignition systems, etc.

I just can't see the same devotion to electric motors.
Old 01-21-2016, 05:20 PM
  #110  
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Thats a good one
Old 01-23-2016, 05:02 PM
  #111  
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Sold $200 plus shipping. Kind of sad now.
Old 01-23-2016, 05:21 PM
  #112  
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I have another one i would sell
Old 01-24-2016, 03:11 PM
  #113  
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Appreciate the opportunity to get a NIB Whiplash from Dirt Dummy.

Finally got my Whip painted. The weather has not been great Temp and Wind wise.

My Whip had some issues that I believe are fixed but only the RC Gods know for sure. The rails were cut out for a larger engine but the original owner shelved the project so aircraft ply was epoxied in and cut for the OS 46. The skin has several bubbled areas mostly on the left close to the elevon. Had seen in one thread that the elevon tore off. My elevons were also stiff. So I did the mod recommended by LGM graphix by cutting the elevons free and using Robart Hingepoints. They are installed using Hysol. Great movement with no binding. Will let paint cure will did the Orange today and then final assembly.


Pete
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Old 01-24-2016, 03:58 PM
  #114  
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Check the wing for twists too. I never built mine, put it aside when I realized both tips had permanent wash-in.
Old 01-24-2016, 06:11 PM
  #115  
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MDJ,

No twists. Thanks for the tip.

Pete
Old 01-25-2016, 06:23 AM
  #116  
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Probably just mine then. I guess I could have moved the fins to the bottom, round the bottom of the engine mount flat and flown it upside down.
Old 01-29-2016, 07:34 AM
  #117  
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Was making good progress programming until one of the HS-7985mg servos abruptly moved 45 deg and started to chatter not holding neutral. Using a NIB Futaba 617FS Rx on 6v. Plugged the servo in another channel same, plugged it in my Hitec programmer and it still chattered not holding neutral. Sent it off to Hitec prob a bad pot. This was a NIB servo and I have had good luck with Hitec in the past. Research on these had been positive.

Looks like it will be at least another week or so before a maiden.

Pete
Old 02-23-2016, 05:32 PM
  #118  
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Well it's finished!!!. I got the HS-7985 back. Hitec said the amplifier was burnt out and they fixed it. Everything works no binding with the new hinging. All up weight is 4.9 lbs, Added 3/4 oz in front of tank to balance right at 2.25 inches. Will use a Higley Heavy Hub for first few flights if I want less nose weight I can swap it for a Dubro Spinner Nut. To protect the throttle servo from vibration I used a Dubro control over-ride servo saver Cat# 120. Hope to maiden this weekend weather permitting.


Pete
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Old 02-24-2016, 03:21 AM
  #119  
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I use to build these for ACM back in the day. I kinda wish I took the plugs and molds when the doors shut. I am thinking real hard about retooling with my only whiplashX.
Old 02-24-2016, 11:09 AM
  #120  
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Originally Posted by Rocketman612 View Post
Well it's finished!!!. I got the HS-7985 back. Hitec said the amplifier was burnt out and they fixed it. Everything works no binding with the new hinging. All up weight is 4.9 lbs, Added 3/4 oz in front of tank to balance right at 2.25 inches. Will use a Higley Heavy Hub for first few flights if I want less nose weight I can swap it for a Dubro Spinner Nut. To protect the throttle servo from vibration I used a Dubro control over-ride servo saver Cat# 120. Hope to maiden this weekend weather permitting.


Pete
Best of luck on the maiden Pete! Don't let anyone tell you you can just hold it up and let go, just because it is a small delta with a .46 - there is a fair bit of inertia there. There's a video somewhere on YT of someone dorking a Whiplash like that. Try to give it whatever speed you can on launch, easy on the control inputs until speed builds. Then off you go. A really light built up delta can sometimes get away with that depending on engine and prop, but zero speed launches don't do much for me. I like my deltas tossed with gusto, long as it is up and a bit to the right.
Old 02-24-2016, 02:14 PM
  #121  
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I hand tossed mine all the time. But I will agree, you can't just let go and it won't just fly out your hand. You do have to give it a good toss forward with throttle at full.

I however would recommend getting a 2nd person that you trust to toss it for you.

Last edited by AtomicFrawg; 02-24-2016 at 02:20 PM.
Old 02-24-2016, 02:28 PM
  #122  
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Working on bringing it back to life.
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Old 02-24-2016, 06:05 PM
  #123  
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Originally Posted by AtomicFrawg View Post
I hand tossed mine all the time. But I will agree, you can't just let go and it won't just fly out your hand. You do have to give it a good toss forward with throttle at full.

I however would recommend getting a 2nd person that you trust to toss it for you.

Skip to 1:20

https://www.youtube.com/watch?v=UQtaaVtqVyQ
Old 02-25-2016, 03:01 PM
  #124  
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MJD,
Thanks for the tips. I did give the engine 2deg rt thrust.

AtomicFrawg,
Glad your dusting yours off for the spring. Too bad you could not salvage the molds.

Weather great today so I ran the engine for the first time since the rebuild. Using the APC 9x7 I got 16500 rpm's with a good idle and transition. Probable still a few clicks rich. Was using the Whiplash launcher to hold the plane while adjusting the needles and running it. Had to make some adjustments to the pin that holds the plane so it's all good now. Hate it when you get to the field and Gremlins chew at your toes so I was glad to get several thing sorted out.

Pete
Old 02-28-2016, 05:01 PM
  #125  
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WOW

Successful maiden but the Gremlins were out. for yesterday's adventure the launcher worked great but the whiplash could not get enough speed and altitude so I broke a couple of props then raised the end on a couple of bricks and I was able to get into the air. She had a nasty hard left roll that would not trim out. In fact the more right trim that was added the worst it got like it was reversed. I was able to safely land it but broke another prop. In going through everything the elevons worked perfect and correct but the trim was in fact reversed. A new one on me so I was able to get into the programming for the trim. The setting was +30 so I changed it to -30 and it now takes trim normally. Had I lost the plane I would have never figured out the programming error that almost killed it.

Today I brought out my workmate and a table to raise the launcher and that was the ticket. Both launches and flights were good except that the engine quit each time about 2 min into the flight. Engine not hot glow plug not burnt out. We ran it again without refueling and the fuel was foaming bad.

So. I have some ideas about remounting the tank to reduce vibration if that does not work then a Tetra bladder tank will go in.

Will get the videos on soon. I deeply appreciate the ideas and suggestions that are in ALL of the Whiplash threads and incorporated into this build. I know my success this weekend rested on your shoulders.

Pete

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