Hi All,
I am currently wrapping up my right elevator and on page 6-9 of the instructions (Preparing the Right Elevator) the last step states that you should "Deburr, dimple and prime the parts as desired". I presume during this step you should also drill with #30 and dimple the outer edge of the E-701 skin and E-713 counterbalance skin for the fiberglass tip installation later on? I imagine that dimpling the section where E-701 overlaps E-713 once the elevator is assembled could be very difficult.
Also, I noted that the CS4-4 blind rivets used to attach the fiberglass tip have a 120 deg head rather than the 100 deg present on AN426 rivets. Is it OK to dimple these just with a normal 1/8 dimple die? I sure hope so, as I didn't have anything else. It is interesting to note that the Tools List only specifies a 120deg countersink cutter for the RV-14, however the RV-7 appears to be riddled with these CS4-4 rivets. Is it OK to use the 100deg #30 countersink cutter, or should I wait for my 120 deg cutter to arrive from the US (I live in Tasmania, the last stop before Antarctica, so they could be a while).
Sorry for so many questions (it's been bugging me all day), so I'll throw in an executive summary:
1. Should I have dimpled the E-701 & E-713 for the CS4-4 before riveting the elevator together?
2. Is it OK to dimple for a CS4-4 with a traditional 1/8 dimple?
3. Is it OK to countersink the fiberglass tip with a 100 deg CS, or should I wait for the 120 to turn up?
4. Should I go back and read the instructions again, because someone's going to tell me it's all in there somewhere and I missed it?
Thanks for your help. I really don't know how anyone built an aeroplane before the days of Vansairforce (thanks Doug). I guess I could have called Van's, but I thought if I post this here, hopefully the result helps someone else in the future.
Cheers,
Tom.
I am currently wrapping up my right elevator and on page 6-9 of the instructions (Preparing the Right Elevator) the last step states that you should "Deburr, dimple and prime the parts as desired". I presume during this step you should also drill with #30 and dimple the outer edge of the E-701 skin and E-713 counterbalance skin for the fiberglass tip installation later on? I imagine that dimpling the section where E-701 overlaps E-713 once the elevator is assembled could be very difficult.
Also, I noted that the CS4-4 blind rivets used to attach the fiberglass tip have a 120 deg head rather than the 100 deg present on AN426 rivets. Is it OK to dimple these just with a normal 1/8 dimple die? I sure hope so, as I didn't have anything else. It is interesting to note that the Tools List only specifies a 120deg countersink cutter for the RV-14, however the RV-7 appears to be riddled with these CS4-4 rivets. Is it OK to use the 100deg #30 countersink cutter, or should I wait for my 120 deg cutter to arrive from the US (I live in Tasmania, the last stop before Antarctica, so they could be a while).
Sorry for so many questions (it's been bugging me all day), so I'll throw in an executive summary:
1. Should I have dimpled the E-701 & E-713 for the CS4-4 before riveting the elevator together?
2. Is it OK to dimple for a CS4-4 with a traditional 1/8 dimple?
3. Is it OK to countersink the fiberglass tip with a 100 deg CS, or should I wait for the 120 to turn up?
4. Should I go back and read the instructions again, because someone's going to tell me it's all in there somewhere and I missed it?
Thanks for your help. I really don't know how anyone built an aeroplane before the days of Vansairforce (thanks Doug). I guess I could have called Van's, but I thought if I post this here, hopefully the result helps someone else in the future.
Cheers,
Tom.