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Skymaster 1:7.5 F-4 Phantom

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Skymaster 1:7.5 F-4 Phantom

Old 03-22-2019, 08:30 AM
  #251  
Spitfire_peter
 
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Just looking at the picture of the F4 chasing the Mig21 .........Nooo,what a time to run out off missiles

Last edited by Spitfire_peter; 03-22-2019 at 08:31 AM. Reason: ref to the picture
Old 05-29-2019, 04:03 AM
  #252  
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Picking up a 1/7 Skymaster F4 this afternoon. Question for the guys flying them now. Turbine I currently have is a 34lb JC Cheetah. F4 is currently being flown well on a 38lb Rhino. Hope is the lighter Cheetah and possibly the chance to remove some nose weight will get me close to the same thrust/ weight ratio. Anyone flying one on a large can 160 which would be about the same thrust/ weight? How is performance? Other option is to purchase a larger motor but it will be flown scale so really don't need a ton of thrust. Thanks for the input.

Last edited by yellowbird911; 05-29-2019 at 04:19 AM.
Old 05-29-2019, 05:22 AM
  #253  
kevinthoele
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I have been flying them for a while. It will fly on the smaller motor but I fly mine on K210. Weight is handled well by the F4. I can fly 8 minute flights. Not all at full throttle. If you are going to fly clean wing it will be fine. Enjoy
Old 05-29-2019, 05:50 AM
  #254  
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Like Kevin I fly a Kt210. Itís great if itís cool or if the plane is clean. If itís hot (were 2000íMSL so density altitude plays a huge part) I go cleanwing otherwise Iím on downwind before pulling flaps up. Full disclosure I went crazy with scale details so mine is 42# dry. Hot day, the TERs and ranks and itís a LOT of drag...even for the 210 at our altitude

Dave
Old 05-29-2019, 07:08 AM
  #255  
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Thanks for the quick responses. Basically fly at sea level and it will be flown clean for now. If I decide to add stores it wil need a larger turbine for sure. Think it is 36 pounds dry now so Cheetah is a pound lighter and possibly remove a little from the nose so possibly 34.5 dry.
Old 05-29-2019, 08:06 AM
  #256  
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Probably won’t have a ton of excess smash going uphill but it will give you the opportunity to really refine the capabilities of the plane at slightly less than 1:1. When you decide you want to add drop tanks, perhaps bombs on the inboard pylon, centerline gunpod etc etc. the extra power will be a breath of fresh air.
Old 08-18-2019, 09:19 AM
  #257  
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These pics are a few days old now, but Yeahbaby Buck G finally got a chance to fly his Camo F-4, at the HOTMAC field in Waco TX. Test flights went good. Hopefully we'll get another chance to get it in the air later this week - last chances to get ready before the Southwest Jet Rally in Waco next month.... Here are a few pics from my phone...



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Old 08-18-2019, 09:49 AM
  #258  
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Looks great Buck!

and just a shade under a decade too!
Old 08-18-2019, 11:26 AM
  #259  
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Nice Buck Looking good. Dan
Old 08-18-2019, 02:44 PM
  #260  
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Originally Posted by ozief16
Looks great Buck!

and just a shade under a decade too!
lol ya ya, note the pylons need to be shimmed for correct angles and the Lau-10s and drop tanks are just taped in place.

Last edited by yeahbaby; 08-18-2019 at 02:46 PM.
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Old 08-18-2019, 03:18 PM
  #261  
tp777fo
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Working on Phantom #2. Sold the other one. How does wing tanks on/off affect cg? Im working on pylons and tanks now. Putting ply in pylons and will drill for 4-40 threaded inserts in wing. Didnt trust wood screws. Plan on flying it with wing tanks and inboard pylons. 210 for blow.
Old 08-18-2019, 04:15 PM
  #262  
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You may find a minor trim change but that’s it. 210 is good power, but AMT Olympus HP is awesome power!
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Old 08-19-2019, 12:13 PM
  #263  
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Buck will have my F4 there to fly with you
Old 08-19-2019, 02:15 PM
  #264  
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Outstanding amigo. If you don’t already have Aim7s you should get in touch with Ron. They really add character to the bird.
Old 06-15-2020, 06:22 AM
  #265  
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Hey guys,

Could someone take measurements of the outlet diameter of the Tam-Pipe for the F4 with 200-class thrust? I currently have a Skymaster pipe, and it exits at 60mm (just under 2 3/8").

Thanks
Old 06-15-2020, 10:28 AM
  #266  
ozief16
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67mm. Just measured my spare. 7mm doesnít sound like a lot but remember you get to square that for outlet area
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Old 06-15-2020, 10:31 AM
  #267  
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Greeeat thanks! While were at it, how much on the inlet side? I think the tam has better performance....
Old 06-17-2020, 04:08 PM
  #268  
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92mm
Old 06-18-2020, 01:34 AM
  #269  
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Excellent, muchas gracias
Old 06-18-2020, 05:53 AM
  #270  
ozief16
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De Nada!
Old 06-18-2020, 06:58 AM
  #271  
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Default Tires and brakes

Gentlemen;

Where do you guys buy Tires and Brakes? Iíve written John, at Skymaster twice. Once in Feb, and again April. I never heard back and could be due to the C19 virus?
Is anyone having any luck here in the USA with any of the dealers? Iím in the market for a set of tires and brakes, should anyone have spares that they want to sell. Thanks!
Old 06-18-2020, 07:37 AM
  #272  
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Originally Posted by RCFlyerDan
Gentlemen;

Where do you guys buy Tires and Brakes? Iíve written John, at Skymaster twice. Once in Feb, and again April. I never heard back and could be due to the C19 virus?
Is anyone having any luck here in the USA with any of the dealers? Iím in the market for a set of tires and brakes, should anyone have spares that they want to sell. Thanks!
Bought some tires a little bit back for my F4. He sent them along with some wheels that I purchased as well

To John at
[email protected]

Old 06-18-2020, 09:33 AM
  #273  
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Thank you Kevin, Iíll try again.
Old 06-18-2020, 12:42 PM
  #274  
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Originally Posted by RCFlyerDan
Thank you Kevin, Iíll try again.
Hope it works out for you. They have been good about shipping parts to me!
Old 06-18-2020, 03:06 PM
  #275  
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Kevin did those tires they shipped fit the gear well?

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