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Author Topic: My Genesis Rebuild  (Read 4231 times)

Offline Skip Chernoff

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My Genesis Rebuild
« on: December 22, 2018, 07:43:21 PM »


Back in the Fall I went to a swap meet in Delaware. On one of the tables was a Bob Hunt Genesis missing the cowl but otherwise in good shape. The owner Tom was asking $100 for it. I was reluctant because the motor beams looked like a bunch of different engines were once installed based on the number of holes filled with 1/8" dowl rod. I was going to pass on it,but Tom lowered the price to $80 and I took it thinking how bad could it be?

When I got her home I burnt the midnight oil and mounted my newly reworked HP 40. The next morning I met John Saunders at the field to test fly her. She only weighed 42oz ready to go. I put my 61' Nobler lines and handle on her.

Once the plane was in the air I started checking her out and she was really good. Great corners, locked in on level flight,great rounds. I flew most of the pattern stunts  then waited for the fuel to run out. When the engine quit I started to set her up for landing when all of a sudden the engine ,beams,and top block fall off the plane and were hanging below the plane held on by the muffler pressure line! I'm able to land the plane with minimal damage.

The plane was really perfect from the wing leading edge back so it was a matter of building a totally new nose. I saved what pieces I could to use as templates for new parts. I built the engine crutch exactly as Bob did originally and sistered  in new fuselage nose sides and doubles.I fashioned  new top and bottom blocks, shaped them, then hollowed everything out for weight saving.I made sure that the nose moment was exactly as the original.

Next I moved on to the engine cowling. Since I had nothing to go by I designed my own along the lines of the classic 60's ships with the snorkel in the front. Very sexy indeed!

When the construction of the nose and cowl was complete I glassed it all with the very light weight glass cloth and used Zpoxy finishing resin to adhere the cloth. I use one thinned coat to hold the cloth in place ,one thicker coat to fill the weave.At this point I mixed up my own sanding sealer of 1/3 thinner,1/3 talc,1/3 clear Brodak dope,a bit on grey dope to help with sanding. I'm at a stand still now with the finishing waiting for drier weather....she looks great in my eyes.

This ship has a bunch of history actually. According to Bob Hunt it was built around 74/75?  After crashing his best plane Joe Adamusko bought the unfinished , but ready for finishing plane from Bob. Joe decided not to use it in competition as he didn't build it. The plane hung on Joe's wall for like 10 years when his then brother in law got into C/L. Joe put a nice finish on it for him, but I understand he didn't use it much. The plane hung at Joe's sister's house for years when Joe then went to pick it up to keep it from being placed in the trash!

I understand that Joe either sold or gave the plane away at one of the local meets. At this point it's history is cloudy,but Tom S. might know more. I'm probably the 6th owner ,but don't know for sure. Meanwhile the plane is 44 or 45 years old.....just amazing.  Maybe Bob Hunt or Tom can tell us more about this plane....Cheers.PhillySkip
« Last Edit: December 22, 2018, 08:27:22 PM by Skip Chernoff »

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #1 on: December 22, 2018, 08:41:52 PM »
Here are two pics of the Genesis taken by Joe Adamusko in 1988! The plane was maybe 14 years old at the time of these pics!

Offline Bob Hunt

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Re: My Genesis Rebuild
« Reply #2 on: December 27, 2018, 08:56:22 AM »
Hi Skip:

It was certainly a trip down memory lane for me seeing this ship again. Yes, I built that model in 1974, just at the time I was switching over to the larger Genesis 46 format. This one was to be the third 35-size Genesis in my arsenal. And, it has some significant history points attached to it...

I had been making foam flaps separate from the wing up to that point, and it suddenly dawned on me that I could cut the flaps integral to the wing core and then cover the entire assembly with balsa and then separate the flaps. I had to make up skins that had the grain running parallel to the leading edge of the wing back to the hinge line area, and then graft on balsa that had the grain running parallel to the leading edge of the flap to make up the remainder of the skin. If I had run the grain biased across the flap, the flaps would have a tendency to warp or bow. After the wing had been sheeted, I made allotment for the trailing edge of the wing and the leading edge cap for the flaps and cut that section out when I separated the flaps from the wing. I then balsa capped the trailing edge of the wing and made fixtures to hold the flap in alignment and capped them with balsa as well. The result was flaps that perfectly fit the trailing edge of the wing and were bow and warp free.

That model also had another new innovation. It was the first wing built with the landing gear "clip" system that I had developed. In that system the wing core has a vertical 1/8-inch Lite-Ply spar installed, and then slots are cut chord-wise back to that spar to allow Lite-Ply half ribs to but up against the spar. The result is a system that allows the landing gear block or plate to be positioned very accurately and be extremely strong. It worked so well on subsequent models (remember, I sold this model before it was finished...) that it still use that exact system to this day in my own wings and in those that I produce commercially. (See the photos below for a more graphic explanation of the LG clip system.) 

That Genesis was also one that was designed to be long and sleek. It was the most futuristic Genesis in my opinion, at least until the advent of the Genesis Extreme many years later. I really wish now that I had finished that ship and used it in competition. Sounds like it flies very well according to you, Skip!

Thanks for posting those old photos, Skip!

Bob



   

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #3 on: December 28, 2018, 06:18:17 AM »
Bob thanks for jumping into the thread. I'm happy that I got most of the history correct.  Before the nose came off she felt like a really good ship. What was so surprising was that the engine and nose fell off AFTER she shut off. While gliding her in with engine dangling below the plane .I looked over at John Saunders and yelled ....Can you believe this? No one will believe this story!

It was a tedious job grafting a complete new front end on. I'd like to fly it this year at the local meets,but hope that no one starts with the ......you didn't build it stuff. At what point does rebuilding or restoring a 45 year old model get acceptance under the BOM rule? ......I guess it won't matter much the way I fly!.....haha.

I know fly the flats,fly the flats................Cheers,Skip

PS If you're feeling well enough to fly, I'd love for you to give it a go.

Offline Bob Hunt

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Re: My Genesis Rebuild
« Reply #4 on: December 28, 2018, 11:25:12 AM »
Here are two pics of the Genesis taken by Joe Adamusko in 1988! The plane was maybe 14 years old at the time of these pics!

One thing: If I had not sold that model to Joe back in 1974 or '75, and had decided to finish it, I would certainly not have used that copper/bronze as a trim color...  VD~

(Come on, that was funny!)

Bob

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #5 on: December 29, 2018, 03:47:04 PM »
I'll tell you the truth ,I've had a lot of fun just talking about this plane to my modeling pals. Hey, it's not everyday that I'm repairing  a 45 year old plane  that was built by a former Nats and World Champion.  I'm getting a lot of mileage out of this!

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #6 on: December 29, 2018, 03:53:18 PM »
Hey Doc the only time any of my planes would be "appearance" judged would be at Brodaks for Pampa Stunt. You know, since those "Jersey Guys" shamed me into Advanced last season my wife doesn't have to worry about me bringing any hardware home.......LOL. That advanced group around here is a tough group to play with!.....Cheers,Skip

Offline Bob Hunt

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Re: My Genesis Rebuild
« Reply #7 on: January 14, 2019, 05:39:04 AM »
Hi Skip:

Thanks for sending me those photos. I scanned them and they will appear in my upcoming Genesis Story book, along with the full story of that plane's inception and construction.

Thanks again - Bob


Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #8 on: January 14, 2019, 07:30:56 PM »
You're welcome, and thank you for your advice on all sorts of "Stunt" related stuff.........Skip

Offline IdRatherBeBuilding

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Re: My Genesis Rebuild
« Reply #9 on: February 16, 2019, 03:04:13 PM »
Bob thanks for jumping into the thread. I'm happy that I got most of the history correct.  Before the nose came off she felt like a really good ship. What was so surprising was that the engine and nose fell off AFTER she shut off. While gliding her in with engine dangling below the plane .I looked over at John Saunders and yelled ....Can you believe this? No one will believe this story!

It was a tedious job grafting a complete new front end on. I'd like to fly it this year at the local meets,but hope that no one starts with the ......you didn't build it stuff. At what point does rebuilding or restoring a 45 year old model get acceptance under the BOM rule? ......I guess it won't matter much the way I fly!.....haha.

I know fly the flats,fly the flats................Cheers,Skip

PS If you're feeling well enough to fly, I'd love for you to give it a go.

Not to mention, get to talk to the man himself!
David Miller

A society grows great when old men plant trees the shade they know they will never sit in

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #10 on: February 16, 2019, 06:29:20 PM »
I'm in the painting stage of the new nose and ran into a problem. When Joe Adamusko originally painted the plane he was experimenting with some type of automotive clear top coat. When I was preparing the nose for painting I blended my dope into (on) the original top coat at the transition from new nose to fuselage at wing leading edge. Well the dope didn't adhere to the top coat. When wet sanding with 600 wet paper the new white dope started pealing off of the original finish. I'll have to figure out how to get the transition area to hold the Brodak dope.

Offline Brent Williams

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    • Fancher Handles - Presented by Brent Williams
Re: My Genesis Rebuild
« Reply #11 on: February 17, 2019, 02:00:15 AM »
I wonder if you could coat it with this Auto Air Colors Scenix satin clear with the 4016 crosslinker. 
Scenix is an industrial grade clear and is also reported to be an amazing adhesion promoter.
Perhaps this would allow you to suitably seal the substrate and then proceed with your desired dope finish method.

https://autoaircolors.com/custom-automotive-paint/7030.html
https://createxcolors.com/scenix-mural-theme-paint/ssr-clears/index.html
https://createxcolors.com/scenix-mural-theme-paint/additives-cleaners-clears/additives.html
-     (Exact same crosslinker as used by Nelson Hobby Paints & System Three WR-LPU  paints)






« Last Edit: February 17, 2019, 02:52:38 PM by Brent Williams »
Laser-cut, "Ted Fancher Precision-Pro" Hard Point Handle Kits are available again.  PM for info.
https://stunthanger.com/smf/brent-williams'-fancher-handles-and-cl-parts/ted-fancher's-precision-pro-handle-kit-by-brent-williams-information/

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #12 on: February 19, 2019, 10:30:08 PM »
Thanks for sharing that info.

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #13 on: February 26, 2019, 01:54:47 PM »
Hi folks attached are pics of my 1974 Bob Hunt Genesis. I grafted on an entire new nose from LE to spinner. She's powered by a 1980's modified HP 40.Weight is 45 3/8oz. I'll start my flying on 61' x.015 lines eyelet to eyelet. Handle spacing at 4". She's a good flyer as I got in one flight before the old nose departed the rest of the plane. I'll fly it in Nostalgia 30 at Brodaks......Cheers,Skip

Offline Skip Chernoff

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Re: My Genesis Rebuild
« Reply #14 on: February 26, 2019, 03:11:59 PM »
Just a hacker at this. Thanks for the kind words. Being retired gives me the time to devote to our hobby. I not only enjoy building new planes,but like to restore the old ones as well. My wife who supports my hobby is great,but goes nuts the moment she smells anything stinky coming out of the shop. So ,I have to paint outside when the weather permits and I use a lot of Monokote for wings and stabs to cut down on the painting. Hey I'm not a first row guy,just want to have nice stuff to fly and enjoy......Skip


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