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Old 11-15-2015, 03:24 PM   #11
G-RIDE
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Re: Composite BAE-Hawk Modified Build


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Thanks for the advice John - I've contacted a fellow member at HumberValley RCF who has a lot of jet experience(TOC). He has accepted my invitation to maiden the AC next spring.

Happy Flying. //g.
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Old 11-15-2015, 05:04 PM   #12
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Re: Composite BAE-Hawk Modified Build

That's very good. If you have access to a video camera, I would take it and record the whole flight. I always use mine when my test pilot maidens any of my jets. There have been problems and they happen so fast that no one can determine what happened other than their opinion, which often is wrong. The video has no feelings so when you replay at slow motion, you can see exactly what happened. I have found it invaluable for prototypes.
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Old 11-16-2015, 10:14 AM   #13
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Re: Composite BAE-Hawk Modified Build

If interested in a big foamie, Hobby88.com has the F-86 for sale as a kit, just the airframe for under $100.00
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Old 11-16-2015, 10:18 PM   #14
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Re: Composite BAE-Hawk Modified Build

Thnx 4th info - The work shop is full for the winter already. //g.
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Old 12-04-2015, 08:33 PM   #15
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Re: Composite BAE-Hawk Modified Build

My apologies; I do not have the sled thrust performance data as promised in this build thread..
Indoor flying started in November then the whole nirod/rudder/ grass landing gear mods took some more time - Then I had repairs from a bad landing with the camel & S#i08!etc --. The custom nose gear structural integrity was weeks in trials (see photos) till an effort was manufactured from scratch (Did I mention I'm not an engineer). Now that I have the main gear & nose wheel incidence height I can cover the rudder wigit and install the engine and thrust tube - Oh -wait a tik - I'm going on vacation. Update you in January.

Happy Flying//g.
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Old 01-05-2016, 09:45 AM   #16
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Re: Composite BAE-Hawk Modified Build

After a lot of research - The C of G in the construction manual is wrong.
The new CG is far forward. This required moving the custom main landing forward - Not a problem since the first a second rough field (grass) designs failed during testing. See the new and final landing gear photos below. Incl - also is the rudder lower hinge bearing which is required. The modifications work as stated in the initial posting is progressing.//g.
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Old 01-05-2016, 10:37 AM   #17
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Re: Composite BAE-Hawk Modified Build

Your design is quite nice in concept, but I don't think it'll stand up to much stress. The brass nose strut will certainly bend as the brass is not very strong and doesn't like bending forces. Once bent, you will need to replace it. And are those zip ties holding the main gear to the plywood plate. I cannot see those holding up to the stress of a 90 mm size model landing heavily. If you examine other commercial wire struts, without exception, they either employ a coil shock feature in the strut, or a torsion bar design for the main gear.

You really should rethink the design, it'll save you some frustration down the road. Check out Hobby Kings website in the landing gear and wheels section. They have numerous simple and cost effective landing gear struts at various lengths and styles. They all feature a working oleo design or swing arm. They are also simple to attach to wire.

This is a nose wheel strut, $7.45 and that includes the wheel, how inexpensive is that. They also have main gear struts that have the same design and would look more scale than the wire.
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Old 01-05-2016, 04:53 PM   #18
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Re: Composite BAE-Hawk Modified Build

Zip ties? - NO - 20 lb braided fishing line x5 raps + epoxy flex. Tested to 30lbs vertical impact per main LG and 25 lbs shearing force at a 25 degrees. I guess you saw the brass nose LG assembly parts photo - Amazingly, It can handle 20 lbs of down/shearing force and not bind the steering. The forward facing wire strut brace is connected to a rubber shock installed where the steering servo would have been (if retracts where employed).
There are not many retracts that can survive for long at Humber Valley RCF -
I know because WE've had them all and it's time to try something new.
Yes I do have a back-up nose gear assembly - I hope - I'll only need it to change the wing incidence after the maiden.

Thanks 4th input.//g
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Old 01-06-2016, 06:17 PM   #19
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Re: Composite BAE-Hawk Modified Build

Canopy bending and Latch hard deck.

This HK 90kmm (like so many others in this release) has a warped fuse and as such will require some reshaping of the canopy to suit (if ur particular) - - - otherwise - just screw it - x8-screws. This easy access deck is for sport jet multabal flights/day.

Happy Flying.//g.
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Old 01-12-2016, 05:09 PM   #20
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Re: Composite BAE-Hawk Modified Build

This setup w/o ducts - Sled data next week.//g.
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