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| stirling, Comment for image # 21425 | 03 Mar 11 19:22 |
| I sure hope that the home guard managed to apprehend the pilot and take him in for questioning. |
| BillParker, Comment for image # 21425 | 03 Mar 11 15:27 |
| well Howard? Isn't that what most German aircraft are supposes to look like? I don't see what the problem is?!?! *G* |
| hjlittman, Image # 21426 | 03 Mar 11 13:35 |
The motor jammed back onto the peg. This makes a model this light really out of balance. At least the prop, peg, and motor are salvagable. |
| hjlittman, Image # 21425 | 03 Mar 11 13:33 |
OK, I ^%#$@&* give up! It wasn't a very good scale replica of an He-112B anyway. The Comet one is more accurate but still has some errors, so I think I will draw one up myself. You would think that the way it floated around that it was too light to hurt itself, but the motor came off the hook as it climbed out and it did an indescribable series of mamuvers before impacting the grass. That's what I get for using the hook that came in the kit instead of my usual prop shaft or a Gizmo Geezer front end. |
| hjlittman, Comment for image # 21301 | 01 Mar 11 19:09 |
| To answer the question about flight times, this is one of the most frustrating models I have built. It's quite light and seems to be able to fly with a two strand motor, Powered with a single loop of 3/16" rubber it floats along like an indoor model but doesn't want to climb very far making 14 second flights at a height of about 8 feet and landing with winds still on the motor. With a four strand motor it shoots up like a proper fighter, but as soon as it turns upwind, (This model has almost no penetration.) noses over and comes down, recovering from the steep descent before striking the ground. A flight like this lasts about 14 seconds! I think that I need to change props and tighten up the nose block. The proper motor for this model is probably 4 strands of 1/8" flat. It's supposed to rain again tomorrow, so more next week. |
| hjlittman, Comment for image # 21301 | 24 Feb 11 15:03 |
| Glides beautifully. Don't know yet her real capabilities. My back yard is only 60 feet wide. Weather permitting I will find out tomorrow. |
| TJH, Comment for image # 21301 | 22 Feb 11 11:36 |
| How long has she stayed airborne? |
| hjlittman, Image # 21302 | 21 Feb 11 19:23 |
It gained 5 grams in the rebuild with all the extra structure. The 37 gram weight is with and FAC legal motor, 15% empty weight. It |
| hjlittman, Image # 21301 | 21 Feb 11 19:21 |
Bottom of rebuilt Heinkel. Except for spinner and radiator it's all colored tissue. |
| hjlittman, Image # 21298 | 21 Feb 11 19:09 |
Rebuilt Heinkel with markings |
| hjlittman, Image # 21114 | 10 Feb 11 10:37 |
Heinkle re-do. The original wing ribs were so "punky" that shrinking the tissue compressed them into "S" curves giving warps that could not be steamed out. The model was unflyable. There were some other weakness in the fuselags, part because of the soft wood and part because of the design, even after I added some reinforcement. I tore the coveing off and did some re-engineering with stronger wood. The model is now going back together, warp free, and stronger, but seems. from weighing the components, to have only gained a couple of grams. Weather premitting, flight tests next week. |
| hjlittman, Comment for image # 17987 | 22 May 10 12:38 |
| It was the competition for the Bf-109. The original "A" model was an inferior design, but it was redesigned into the He-112B that you see here. An experimental model, with the same engine as the Bf-109E turned out to have better performance than the Bf-109, but by that time, the Bf-109 was in full production and was using up all the available DB-601 engines. The He-112B was exported and used by Spain, Romania, Bulgaria, and exprimentally by the Japanese. The export version was powered by a Jumo engine of about 700 horsepower and so suffered in performance when compared to the 1175 horsepower Bf-109E. It was a might have been that suffered from timing and politics. If the Germans had actually completed an aircraft carrier it might have been resurrected as a carrier fighter with a larger engine since it had better range, was sturdier and would have had much much better deck manners than a Bf-109. |
| BriandKilby, Comment for image # 17987 | 22 May 10 11:52 |
| i'm not to familiar with the he 112,can you enlighten me? was it used in the war? |
| hjlittman, Image # 17987 | 22 May 10 10:49 |
Not easy bo build without breaking it, but once it's all together it is amazingly sturdy. I replaced the six inch "white prop" that came in the kit with an eigh inch one. Made it slightly nose heavy, but easy to trim out. The trimming flights are a testiment to the "build it light enough and it can't fall hard enough to hurt itself" school of thought. With rubber and ballast it weighs 32 grams. Motot can take 1500 turns so it has a chance if there is zero wind in the morning. |
| hjlittman, Image # 17986 | 22 May 10 10:44 |
Not exactly finished, but flyable which is all I need for the contest tomorow morning. If it survives the contest I will put the control surface lines and wheel wheel detial on it along with the exhause pipe and unit markings. |
| hjlittman, Image # 17972 | 20 May 10 09:35 |
A veritable orgy of covering. Working on the Heinkle and four other models at once. The Easy built instructions say you can can wet cover with the domestic tissue supplied. Well, sort of. Works on the fuselage if you are very careful. The wings threatened to become pretzles. Didn't even try on the tail pieces. Still looks like it'[s going to hit that 25 gram target weight without rubber. |
| hjlittman, Image # 17921 | 14 May 10 13:13 |
Two pin nose block key. I saw this type of nose block key used very effectively by some other modelers and tried it. Now it's about all I use. Former and nose plug are faced with 1/64 inch plywood. Pins are bamboo. Thrust button is Dare, not old style Guillow's thrust button supplied in kit. New style Guillow's thrust buttons are OK. |
| hjlittman, Image # 17920 | 14 May 10 13:08 |
Tacked together for obligatory "bones shot". This has a 24 inche wing span and 80 square inches of wing area. Even with all the extra gussets and braces it still weighs only 15 grams as seen. I estimate that covering, details and prop will add another 10 grams. |
| hjlittman, Image # 17777 | 30 Apr 10 07:08 |
Properly gulled wing. Uncovered, this whole wing half only weighs 2 grams even with the extra parts I added for strength. |
| hjlittman, Image # 17776 | 30 Apr 10 07:06 |
This is a tricky thing to get straight. I will add some gussets to the fuselage frame and a center beam at the wing spar line to carry the loads through. I don't know how anyone building it right out of the box could keep it together long enough to get it trimmed out. |
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